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19
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Vergroot
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1/60
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Edition GB – D09
REMKO KWG
KWG 400 (P/SP) (SLN), KWG 500 (P/SP) (SLN),
KWG 600 (P/SP) (SLN), KWG 750 (P/SP) (SLN),
KWG 850 (P/SP) (SLN), KWG 950 (P/SP) (SLN),
KWG 1100 (P/SP) (SLN), KWG 1300 (P/SP) (SLN),
KWG 1500 (P/SP) (SLN), KWG 1750 (P/SP) (SLN)
Chiller
Operation Technology Spare parts
Contents
These original operating instructions must be read carefully
before commissioning/using the unit!
These original instructions are part of the unit and must always be
kept in the direct vicinity of the site of installation or
on the unit.
We reserve the right to make changes; no liability for errors and misprints!
Safety notices
4
Environmental protection and recycling
4
Guarantee
4
Transport and packaging
5
Description of the unit
5-6
System setup
7
Operation
7-16
Care and maintenance
17
Decommissioning
17
Troubleshooting and customer service
18-20
Mounting instructions for expert personnel
21-24
Installation
24-29
Condensate connection and safe drainage
30
Electrical connection
31-33
Electrical components
33-34
Seal tightness monitoring
35
Before Commissioning
35-36
Commissioning
37
Servicing and repair
38
Unit dimensions
39
Characteristic curves and outputs
40-43
Unit diagrams and spare parts lists
44-51
Technical data
52-57
3
Safety notices
Disposal of packaging
All products are packaged care-
fully in environmentally sound
materials for transport. Make a
valuable contribution to the reduc-
tion of waste and conservation of
raw materials and dispose of the
packaging material only at the cor-
responding collection points.
Disposal of units and compo-
nents
During the manufactur-
ing of units and components, only
recyclable materials are used.
Make a contribution to environ-
mental protection by making sure
that units or components (such
as batteries) do not get into the
domestic waste, but rather are dis-
posed of only in an environmen-
tally sound manner according to
regional regulations, for example,
using authorised disposal and recy-
cling companies or at community
collection points.
Environmental
protection and
recycling
Before the initial start-up of the
unit, carefully read the operating
instructions. They
contain useful tips, instructions ,
and warnings to prevent risks
to people and property . The
non-observance of the operating
instructions can lead to an endan-
germent of people, the environ-
ment, and the system and thus to a
loss of possible claims.
Keep these operating instructions
and the refrigerant data sheet in
the vicinity of the units.
Only expert personnel may
set up and install the units and
components.
The set-up, connection, and op-
eration of the units and compo-
nents must take place within the
conditions for use and operation
according to the instructions and
correspond with valid regional
requirements.
The units for mobile use must
be set up vertically on an even
foundation in an operationally
safe manner. Units for stationary
operation may be operated only
when permanently installed.
Conversions to or changes in the
units or components provided
by REMKO are not permissible
and could cause malfunctions.
The units and components must
not be operated in areas with an
increased risk of damage. The
minimum clearances must be
observed.
The electrical power supply must
be adapted to the unit require-
ments.
The operating safety of the units
and components is guaran-
teed only in case of proper use
and when they are completely
mounted. Safety equipment
must not be changed or by-
passed.
Units or components with no-
ticeable defects
or damage must not be oper-
ated.
All housing parts and unit open-
ings such as air inlet and outlet
openings must be free of foreign
objects, liquids, or gases.
The units and components re-
quire a sufficient safety distance
to ignitable, explosive, flam-
mable, aggressive, and contami-
nated areas or atmospheres.
Touching certain unit parts or
components can result in burns
or injuries.
Installation, repairs, and main-
tenance may be performed only
by authorised expert personnel;
visual inspections and cleaning
can be performed by the plant
owner when the units and com-
ponents are de-energised.
During the installation, repair,
maintenance, or cleaning of the
units, suitable measures must be
taken to exclude the endanger-
ment of people by the unit.
The units or components must
not be exposed to
mechanical loads, extreme mois-
ture, and direct sunlight.
Guarantee
The prerequisite for any
warranty claim is
that the customer or its recipient
has returned the completed "War-
ranty Document" included in de-
livery and the completely filled-out
„Commissioning Log“ to REMKO
GmbH & Co. KG at the time of the
sale and commissioning
of the equipment. The warranty
conditions are listed in the "General
Terms and Conditions of Business
and Delivery." Beyond that, special
agreements can be made only be-
tween the contracting partners. As
a consequence, please contact your
direct contracting partner first.
REMKO KWG
4
erant is conducted to an air-cooled
condenser, which condenses the
refrigerant under high pressure as
a result of the heat exchange. The
air emerging from the condenser
heats the environment. Using a
controllable injection valve, the
liquid refrigerant is conducted back
to the evaporator, where the cycle
begins once again.
To regulate the cooling capacity,
a return temperature dependent,
multi-stage regulation is used,
which guarantees autonomous
unit operation in addition to all
safety functions. A floating contact
enables a remote release.
The unit is designed for outdoor
installation. It can also be used in-
doors under certain circumstances.
The cooling circuit of the unit con-
sists of an evaporator, compressor,
thermal injection valve, condenser,
condenser fan, pressure trans-
ducer, and high and low pressure
monitors. According to design, the
medium circuit consists of a plate
heat exchanger, circulation pump,
expansion vessel, safety valve,
differential pressure monitor, and
storage tank.
Accessories include winter fan
The units are provided in a stable
transport packaging. Please check
the units immediately at delivery,
note down any damage or miss-
ing parts on the delivery note, and
inform the shipping agent and your
contracting partner.
We assume no guarantee for later
complaints.
Description of the unit
Transport and packaging
During cooling mode, the unit (air-
cooled chiller) takes up the heat
from the operating medium to be
cooled (water or a water/glycol
mixture) within a closed medium
circuit in the evaporator (flat plate
evaporator) and delivers it to the
closed cooling circuit. As a result
of the heat exchange, the medium
cools and the refrigerant in the
cooling circuit evaporates under
low pressure.
The gaseous refrigerant enters
an electrically driven compressor
(scroll construction), which increas-
es the pressure and temperature of
the refrigerant. The gaseous refrig-
controls, cabled remote controls,
crankcase heaters, vibration damp-
ers, heaters for anti-frost protec-
tion medium, protective grids,
glycol concentrate, and technical
unit handover.
Intended
use
According to design and equip-
ment, the units are intended for
use only as chillers for cooling an
operating medium of water or
a water-glycol mixture within a
closed medium circuit.
Any other use or any use going
beyond this application is consid-
ered improper. The manufacturer/
supplier is not liable for resulting
damage. The user alone bears the
risk.
Intended use also includes the
observance of the operating and
installation instructions, as well as
the maintenance conditions.
Legend:
1 Circulation pump
2 Manual bleeder
3 Flat plate evaporator
4 Differential pressure monitor
5 Diaphragm expansion vessel
6 Safety valve
7 Shut-off valve
8 Victaulic connectors
9 Medium storage tank
10 Free-cooling register
11 Three-way, free-cooling valve
12 Filling/draining valve
13 Medium inlet sensor
14 Medium outlet sensor
15 System return sensor
16 Ambient temperature sensor
Unit setup for medium circuit
KWG
8213
14
3 4
KWG...P
871213
14
3 4
KWG...SP
14
871213
9
12
56
3
4
5
Legend:
1 Compressor
2 Pressure transducer
3 Schraeder valve
4 Air-cooled condenser
5 Evaporator
6 Condenser fan
7 Filter dryer
8 Schraeder valve
9 Thermal expansion valve, cooling
10 High-pressure switch
11 Low-pressure switch
12 Sightglass
13 Crankcase heater (accessory)
14 Liquid collecting tray
15 Solenoid valve
Unit setup for cooling circuit
KWG 400 to 750 (P, SP, SLN); 2 compressors
KWG 850 to 1100 (P, SP, SLN); 3 compressors
Cooling mode
3
7
6
1
1
1
2
2
1110
12
12
5
4 4
9
Only KWG 850 / 950 / 1100
KWG 1300 / 1500 (P, SP, SLN); 4 compressors
KWG 1750 (P, SP, SLN); 6 compressors
Cooling mode
3
3
7 7
6
1
1 1
1
1 1
2 2
2 2
11 1110 10
12
12 12
12
5
4 4
9 9
Only KWG 1750
REMKO KWG
6
System setup
Operation
The unit is conveniently operated
using the fully automatic iChiLL
controller. If programming using
the indoor controller is possible only
with difficulty due to local condi-
tions, the unit can also be actuated
using the cabled remote control
(accessory) or an external, floating
enabling contact (serial equipment).
The standard equipment includes
a collective fault contact for the
external indication of a fault.
If the letter "A" with a two-
digit numeric code appears on
the display,
the chiller is malfunctioning
(See the "Troubleshooting and
customer service" chapter).
ATTENTION
The unit is designed for
a 2-pipe system.
The system has 2 medium pipes
(pipes for inlet flow and return) for
cooling with cold medium (KWG)
or for heating with hot medium
(units with heat pump function
(KWP)).
In combination with a correspond-
ing system, it is possible to intro-
duce the generated power to the
rooms being cooled through the
floor, building structure, or chilled
sails.
For all system variants, a minimum
volume flow rate and minimum
medium volume of the system
must be ensured.
Chiller
System setup
Medium inlet
Medium outlet
Indoor area 1
Outdoor area
Indoor area 2 Indoor area 3
Room temperature controller
Infrared remote control Cabled remote control
Cold water
consumer
Cold water
consumer
Cold water
consumer
Condensate line
Condensate line (only
units with heat pump
function)
Condensate line Condensate line
Collective condensate line
Operating possibilities
Collective
fault indicator
IPro controller
Cabled
remote control
Enabling contacts
ON/OFF Cooling/heating
(e.g., GLT)
(Serial equipment)
(Serial equipment)
(Accessory)
(Serial
equip-
ment)
Help save energy consumption
in standby mode! If the unit,
system, or components are not
used, we recommend that the
power supply be disconnected.
Safety-related components are
not subject to our recommen-
dation!
TIP
7
Operating ranges
Ambient temperatures
The units can be used at certain ambient temperatures. For the various use cases,
the corresponding "compressor crankcase heater"
and "winter fan control" are available as accessories. For certain unit series, the accessory is part of the serial
equipment at the factory.
Medium temperature
The units can be used only for certain medium inlet and outlet temperatures. The volume flow rate must be
adapted if necessary.
0
2
4
6
8
10
12
14
16
18
20
22
24
9 11 13 15 17 19 21
OUT °C
23
IN °C
REMKO KWG
8
IN Medium inlet OUT Medium outlet
Medium temperature, cooling
Cooling operating range
KWG cooling mode
The precise operating ranges may deviate according to unit type!
TA (°C)
TW (°C)
20
15
10
5
0
5 5045403530252015100-5-10-15
A
C
D
B
Area of application
1)
,
2)
Area of application, short-term
S Serial equipment
+ With accessories
Not possible
TW Medium inlet temperature
TA Ambient temperature
Without accessories
With accessories
Crankcase heater
With accessories
Winter fan control (including
crankcase heater)
A B C D
Equipment
A B C D
Equipment
A B C D
KWG... , KWG... P, KWG... SP
1)
+
1)
+
1)
KWG... SLN, KWG... P SLN,
KWG... SP SLN
1)
+
1)
+
1)
"Cooling Mode" button
Long pressing (>5 seconds)
switches between the cooling
and standby modes.
"Heating Mode" button
(only units with heat pump
function)
Long pressing (>5 seconds)
switches between the heating
and standby modes.
Symbol for compressors 1-6
Indicates the operation (lights
up) of the compressors. If the
LED is flashing, the correspond-
ing compressor is in safety time.
The "Pump" symbol lights up
when the circulation pump is
actuated.
The "Fan" symbol
lights up when the condenser
fan is actuated.
Thawing status LED
(only units with heat pump
function)
The LED indicates the opera-
tion (lights up) of the thawing
cycle during the heating mode
on the air-cooled condenser. If
the LED flashes, the controller
determines the required thaw-
ing time.
Symbol for anti-frost protection
medium heater
This symbol provides informa-
tion on the operating status
of the "anti-frost protection
medium heater" accessory.
"Menu" LED
Lights up when the parameter
level is activated.
Operation of the
iPro controller
The controller has 3 Modi:
1. Summer fan control (cooling
mode)
In cooling mode, the warmer me-
dium temperature is cooled to the
colder set value.
2. Transition mode (heating mode)
(only units with heat pump func-
tion):
In heating mode, the colder me-
dium temperature is heated to the
warmer set value.
3. Readiness mode (standby)
In standby mode, the safety equip-
ment is active and an operating
mode is not set.
"Menu" button
With this button, you can ac-
cess the function menu or set
the time and date.
"SET" button
With this button, you can select
a set value or parameter.
"" button
Pressing briefly can switch
between medium inlet, medium
outlet, condensation pressure,
and evaporation pressure. A
value can also be lowered.
"" button
Pressing briefly can switch
between medium inlet, medium
outlet, condensation pressure,
and evaporation pressure. A
value can also be raised.
"" and "SET" buttons together
Simultaneously pressing the
"" and "SET" buttons (>5
seconds) permits a change to
parameter levels 1 through 3.
"" and "SET" buttons together
Simultaneously pressing the
"" and "SET" buttons (<2
seconds) lets you leave param-
eter levels 1 through 3.
"" and "SET" together for
longer than 5 seconds
Simultaneously and longer
pressing the "" and "SET"
buttons (>5 seconds) enables
manual thawing (only units
with heat pump function).
"Vset" LED
Lights up when the dynamic set
value is activated.
Cooling mode LED
This LED indicates the selected
cooling mode.
Heating mode LED
(only units with heat pump
function)
This LED indicates the selected
heating mode.
"Cir1" symbol
Describes the specified value for
cooling circuit 1.
"Cir2" symbol
Describes the specified value for
cooling circuit 2.
"Flow!" symbol
Describes a medium volume
flow rate that is too low or too
high or no medium pressure.
General alarm LED
Indicates the respective fault in
combination with the code.
Value display (red display)
The value display shows current
values.
Parameter display (yellow dis-
play)
The parameter display shows
current values or parameters.
"°C" and "F°" symbol
Indicates which temperature
unit is shown in the value
display.
"Time" symbol
Indicates a value in a unit of
time.
"Bar" and "PSI°" symbol
Indicates which pressure unit is
shown in the value display.
+
+
Control panel of the IPS400D / IPC108E controller
+
bar
°C
F
PSI
Flow!
Vset
menu
Cir1 Cir2
menu
SET
IPS400DIPro
SMALL
bar
°C
F
PSI
Flow!
Vset
menu
Cir1 Cir2
menu
SET
IPS400D
IPro
SMALL
9
Button functions
/ BUTTON
Activate and/or deactivate the unit by enabling the voltage supply to the
unit. The controller performs a self test and then indicates operational
readiness by the flashing of the LED 1 below the display.
Voltage
activated
Automatic
Approx. 1 min.
No voltage present Controller perform-
ing self test
Controller can be
operated
External enable
If a floating contact is used for the external enabling of the unit, the con-
troller shows "OFF" on the display and the display of the decimal places
flashes. The floating contact (Terminal 2-3) has priority for operation over
the controller.
Factory setting: Contact (Terminal 2-3) open = controller on
Possible connection: Contact (Terminal 2-3) closed = controller off
External enable
contact opened
Normal display
Units activated
Display
Unit deactivated
External enable
contact closed
The unit has three modes: Standby mode, summer fan control (cooling
mode), and transition mode (heating mode - only for units with heat
pump function). "StbY" is displayed in standby mode. All fault messages
and anti-frost protection resistors are active. The set cooling and heating
mode is indicated by the LED.
Please note: Changing the parameters can result in the programming of a
changed functional sense of the display!
Mode setting
> 5 sec. > 5 sec.
> 5 sec. > 5 sec.
HEATING MODE
Only KWG
COOLING
MODE
KWL and KWP
Cooling mode
Heating mode
Standby mode
SET value entry, cooling mode
Programming the set values
Using the "SET" button, the set value can be displayed during standby
or cooling mode. To change the set value, the "SET" button is pressed
for about 2 seconds. The display starts to flash. Using the "" or ""
button, the value can be set within the limits defined at the factory (St 02
+ St 03).
St 02 = 9.0°C Minimum set value, cooling mode
St 03 = 20.0°C Maximum set value, cooling mode
Factory setting = 11.0 °C
< 2 sec.< 2 sec. < 2 sec.< 2 sec. ...
Normal
display
Value
opened
Submenu
opened
Close
submenu
Entry of
new set value
< 2 sec.
REMKO KWG
10
Using the "SET" button, the set value can be displayed during standby or
heating mode in the case of units with a heat pump function. To change
the set value, the "SET" button is pressed for about 2 seconds. The dis-
play starts to flash. Using the "" or "" button, the value can be set
within the limits defined at the factory (St 05 + St 06).
St 07 = 30°C Minimum set value, heating mode
St 08 = 50°C Maximum set value, heating mode
Factory setting = 38.0°C
Set value entry, heating mode
< 2 sec.< 2 sec. < 2 sec.< 2 sec. ...
Normal
display
Value
opened
Submenu
opened
Close
submenu
Entry of
new set value
< 2 sec.
Display of the operating values
Display of the current operating values
The current medium inlet and outlet temperatures are shown on the
normal display.
Pressing the button displays the following values, one after the other:
EIn Medium inlet temperature
EOut Medium outlet temperature
FCIn Medium inlet temperature, free-cooling
Et Ambient temperature, dynamic set value
FCEt Ambient temperature, free-cooling
CdP1 / CdP2 Condensation pressure, Circuit 1 / Circuit 2
LP1 / LP2 Evaporation pressure, Circuit 1 / Circuit 2
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec. < 2 sec.
< 2 sec.
Normal
display
Medium inlet
temperature
Medium inlet
temperature, free-cooling
Ambient temperature,
free-cooling
Medium outlet
temperature
Ambient temperature,
dynamic set value
Condensation
pressure HP
Circuit 1 / 2
Evaporation
pressure LP
Circuit 1 / 2
< 2 sec.
> 5 sec.
> 5 sec.
11
Setting the date and time
Date and time setting
The times must be set before the first operation of the unit or when the
"rtC" message appears. By pressing the "Menu" button for a longer
period of time, the date and time setting can be performed within the
following limits:
Hour Hours = 0 - 23 Mnth Months = 1 - 12
Min Minutes = 0 - 59 YEAr Years = 2000 - 2099
dAY Days = 1 - 31
> 5 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec. ...
< 2 sec. ...
< 2 sec. ...
< 2 sec. ...
< 2 sec. ...
Normal
display
Open
submenu
Open
submenu
Open
submenu
Open
submenu
Open
submenu
Close
submenu
Close
submenu
Close
submenu
Close
submenu
Close
submenu
Hours submenu
Day
submenu
Day
submenu
Minute
submenu
Month
submenu
Hour
entry
Day
entry
Year
entry
Minute
entry
Month entry
(June)
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
In the "Menu" menu level, various unit information can be queried. The following submenus are available:
Query of the operating states
But-
ton
Title Description Unit Description
ALrM Current fault list - Query current faults, reset faults
ALOG Fault history n01-n50 Query older faults, delete fault list (n01=oldest fault)
COEn Compressor activation - Enable or disable individual compressors
COSn Compressor starts Pcs. Query number of compressor starts
Hour Compressor/pump operating hours h Display the operating hours of the compressors and pump
PUMP Enable/disable circulation pump - Enable or disable the circulation pump
COnd Actuation of the condenser fans % Display the current set speed of the fans
InOu Inputs and outputs °C/0-1 Query the current status of the inputs and outputs
FC Free-cooling °C/0-1 Query the current status of the inputs and outputs
ConF Configuration status - Query current unit configuration
USb USB port - Transfer configuration to/from USB
InFO Controller version - Display software version and address
REMKO KWG
12
Display of the compressor starts
The compressor starts can be queried in the "COSn" submenu. Through
rotation, the compressors with the lowest starts are requested first.
COS1 = Number of compressor starts, Compressor 1
COS2 = Number of compressor starts, Compressor 2
COS3 = Number of compressor starts, Compressor 3
COS4 = Number of compressor starts, Compressor 4
COS5 = Number of compressor starts, Compressor 5
COS6 = Number of compressor starts, Compressor 6
Compressor 1 starts
12 compressor starts
Compressor 2 starts
1 compressor start
Compressor 6 starts
91 compressor starts
Pressing the button for 5 seconds can reset the compressor starts in
the individual submenus.
Normal
display
ALrM
submenu
Hour
submenu
< 2 sec.
...
...
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
Disabling and enabling compressors
In the "COEn" submenu, individual compressors can be disabled or ena-
bled, e.g., for maintenance purposes.
CO1E = Compressor 1 disabled (diS) or enabled (En)
CO2E = Compressor 2 disabled (diS) or enabled (En)
CO3E = Compressor 3 disabled (diS) or enabled (En)
CO4E = Compressor 4 disabled (diS) or enabled (En)
CO5E = Compressor 5 disabled (diS) or enabled (En)
CO6E = Compressor 6 disabled (diS) or enabled (En)
Disable/enable Compressor 1
Compressor 1 enabled (En)
Disable/enable Compressor 2
Compressor 2 disabled (dIS)
Disable/enable Compressor 6
Compressor 6 disabled (dIS)
Pressing the button for 5 seconds can disable and enable the compres-
sors in the individual submenus.
Normal
display
ALrM
submenu
Hour
submenu
< 2 sec.
...
...
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
13
Disabling and enabling circulation
pumps
In the "PUMP" submenu, individual compressors can be disabled or
enabled, e.g., for maintenance purposes.
PE1E = Circulation pump 1 disabled (diS) or enabled (En)
PE2E = Circulation pump 2 disabled (diS) or enabled (En)
Pressing the button for 5 seconds can disable and enable the circula-
tion pumps in the individual submenus.
Disable/enable Pump 1
Circulation pump 1 enabled (En)
Disable/enable Pump 2
Circulation pump 2 disabled (dIS)
Normal
display
ALrM
submenu
Hour
submenu
< 2 sec.
...
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
Actuation of the condenser fans
The current actuation of the condenser fans can be displayed in the
"COnd" submenu.
Cnd1 = Condenser fan(s) circuit 1 actuation in %
Condenser fan. Actuation
Actuation 82%
Normal
display
ALrM
submenu
COnd
submenu
< 2 sec.
...
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
Display of the operating hours
The operating hours can be queried in the menu level. The clock display
appears.
CO1H = Compressor 1 operating hours in hours
CO2H = Compressor 2 operating hours in hours
CO3H = Compressor 3 operating hours in hours
CO4H = Compressor 4 operating hours in hours
CO5H = Compressor 5 operating hours in hours
CO6H = Compressor 6 operating hours in hours
EP1H = Circulation pump operating hours in hours
Compressor 1 operating hours
177 operating hours
Compressor 6 operating hours
60 operating hours
Circulation pump operating hours
534 operating hours
Pressing the button for 5 seconds can reset the operating hours in the
individual submenus.
Normal
display
ALrM
submenu
Hour
submenu
< 2 sec.
...
...
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
REMKO KWG
14
Fault reset
To protect the unit from damage, the controller checks the safety-related
components of the unit for temperature, pressure, configuration, etc. An
encoded fault message using a fault code with a sequence of letters is
shown on the display of the controller. The cause can be allocated to this
code (see the "Fault display through code" table).
In the "ALrM" submenu, faults that are still active and cannot be reset
are labelled with "no" faults, while those that can be reset are labelled
with "rSt.".
Query and reset of the fault messages
(see the "Troubleshooting and customer service" chapter)
Differential pressure monitor fault
"No" fault, can not be reset
Differential pressure monitor fault
"rSt" fault, can be reset
Manual
remedy
of the fault
Normal
display
ALrM
submenu
< 2 sec.
Autom.
< 2 sec.
< 2 sec.
< 2 sec.
Fault logging
The faults that occur are saved in a list and can be called in the "ALOG"
submenu. The oldest fault is given the lowest number (example "n34" =
34th fault).
Fault 1 AEFL
Differential pressure monitor
Fault 2 b2IP
Pressure transmitter circuit 2 ND
fault
Fault 78 b1AC
Anti-frost protection circuit 1
Delete fault list
Password required
Fault 79 b1AC
Anti-frost protection circuit 1
Password entry
Password must be prompted sepa-
rately!
Normal
display
ALrM
submenu
Hour
submenu
< 2 sec.
...
...
...
...
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
15
Operating structure
Standard display
Display of the operating values
Medium outlet B2
Current actual temperature
value (inlet flow)
Medium inlet B1
Current actual temperature
value (return)
Medium inlet FC
Current actual temperature
value (return) in free-cooling
mode
Ambient temperature
Current actual temperature
value of the ambient tempera-
ture (unit air inlet).
Ambient temp. Free-cool.
Current actual temperature
value of the ambient tempera-
ture (unit air inlet).
Condensation
Current pressure value of the
hot-gas line for Circuits 1
(CdP1) and 2 (CdP2) via "SET"
(>5 sec.).
Low pressure
Current actual pressure value of
the suction-gas line for Circuits
1 (LP1) and 2 (LP2) via "SET"
(>5 sec.).
Change in set values
Set value, cooling
Current set value in cooling
mode, value settable between
9.0 and 20.0°C
Set value, heating
Current set value in heating
mode, value settable between
30.0 and 50.0°C
Time setting
Hour entry
Value change
between
0 and 23 via the
"/" button,
save via "SET."
Minute entry
Value change
between
0 and 59 via the
"/" button,
save via "SET."
Day entry
Value change
between
1 and 31 via the
"/" button,
save via "SET."
Month entry
Value change
between 1 and 12
via the "/"
button, save via
"SET."
Year entry
Value change
between 2000
and 2099 via the
"/" button,
save via "SET."
Current fault list
Current, non-resettable faults are indicated
with "No", resettable with "rSt", reset via
the "SET" button.
Compressor/pump operating hours
Value in hours for compressors (CO..H) and
pumps (EP..H) by pressing the "SET" button,
resettable after maintenance (5 sec.).
Actuation of the condenser fans
Value in % as actuation of the controller for
winter fan control, for example (currently an
accessory).
Number of compressor starts 1-6
Number of starts of compressors 1-6
(CO..S). Reset of the value using the "SET"
button (5 sec.).
Disable/enable of compressors 1-6
For example, enable (En) or disable (diS)
of the compressors (CO..E) during mainte-
nance, etc. by pressing the "SET" button
(5 sec.).
Disable/enable of circulation pumps 1-2
For example, enable (En) or disable (diS)
of the circulation pumps (PE..E) during
maintenance, etc. by pressing the "SET"
button (5 sec.).
Parameter transfer to/from USB
Using an inserted USB stick, the current
parameterisation of the controller can be
transferred to/from the stick.
Current operating state
Display of the current operating state of
the unit.
Software version
Display of the current software version
(APP), unit IP (IP), and address (Adr)
Fault history
Faults are displayed according to the order
n01 (oldest) to n99 (most recent). Reset
under "ArSt."
Current operating state of the inputs/
outputs
Display of the sensors (Pb), digital inputs (di)
and outputs (rL) as "On," "Off," or "Not
used" (nc).
Menu without password
Set values (available parameters)
Level PAS 1 PAS 2 PAS 3
From St 1 1 1
To St 1 32 32
Display (available parameters)
Level PAS 1 PAS 2 PAS 3
From dP - 1 1
To dP - 11 11
Configuration (available parameters)
Level PAS 1 PAS 2 PAS 3
From CF - - 1
to CF - - 10
Setup (available parameters)
Level PAS 1 PAS 2 PAS 3
From SP - - 1
To SP - - 18
Dynam. set value (available parameters)
Level PAS 1 PAS 2 PAS 3
From Sd - 1 1
To Sd - 6 6
Energy savings (available parameters)
Level PAS 1 PAS 2 PAS 3
From ES 1 1 1
To ES 25 25 25
2. Heat generator (available parameters)
Level PAS 1 PAS 2 PAS 3
From AH - - 1
To AH - - 16
Compressor (available parameters)
Level PAS 1 PAS 2 PAS 3
From CO - - 1
To CO - - 71
Compressor levels (available parameters)
Level PAS 1 PAS 2 PAS 3
From SL - - 1
To SL - - 10
Circulation pump (available parameters)
Level PAS 1 PAS 2 PAS 3
From PA - 1 1
To PA - 30 30
Pumpdown cooling circuit (available
parameters
)
Level PAS 1 PAS 2 PAS 3
From Pd - - 1
To Pd - - 9
Unloading (available parameters)
Level PAS 1 PAS 2 PAS 3
From Un - - 1
To Un - - 17
Condenser fan (available parameters)
Level PAS 1 PAS 2 PAS 3
From FA - - 1
To FA - - 44
Anti-frost protection (available parameters)
Level PAS 1 PAS 2 PAS 3
From Ar - - 1
To Ar - - 11
Thawing (available parameters)
Level PAS 1 PAS 2 PAS 3
From dF - - 1
To dF - - 33
Heat recovery(available parameters
)
Level PAS 1 PAS 2 PAS 3
From rC - - 1
To rC - - 15
Household water heating (available
parameters)
Level PAS 1 PAS 2 PAS 3
From - - 1
To - - 56
Free-cooling (available parameters)
Level PAS 1 PAS 2 PAS 3
From - - 1
To - - 31
Relay outputs (available parameters)
Level PAS 1 PAS 2 PAS 3
From - - 1
To - - 44
Faults (available parameters)
Level PAS 1 PAS 2 PAS 3
From 34/41 34/41 1
To 34/41 34/41 71
Electrical valve (available parameters)
Level PAS 1 PAS 2 PAS 3
From - - 1
To - - 64
Parameter with password
< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
+
> 5 sec.
< 2 sec.< 2 sec.
< 2 sec.
< 2 sec.
< 2 sec.
> 5 sec.
< 2 sec.
< 2 sec.< 2 sec.
< 2 sec.
< 2 sec.
+
< 2 sec.
Open parameter
Raise value/parameter
Open submenu/value
Close parameter
Lower value/parameter
Close submenu
+
+
Level 1 access
(without password)
Password 2 entry
(PW required)
Password 3 entry
(PW required)
REMKO KWG
16
Care and maintenance Decommissioning
Fixed-term
decommissioning
1. Decommission the internal units
of the system using the remote
control.
2. Switch off the unit using the
internal controller in the chiller
(or using the remote control).
3. Check the glycol percentage.
4. Check the unit for visible dam-
age and clean it as described in
the "Care and maintenance"
chapter.
5. If possible, cover the unit with a
plastic film to protect it against
the influence of weather.
If only water and no water/
glycol mixture is used in the
medium circuit, the water
must be drained from the
system parts during the
downtime in areas at risk of
frost.
At recommissioning, the
drained water volume must be
adapted again!
ATTENTION
Non-fixed-term
decommissioning
The units and components must
be disposed of according to
regional regulations, for example,
by authorised specialist companies
for disposal and recycling or
community collection points.
REMKO GmbH & Co. KG or your
responsible contracting partner is
happy to name a specialist com-
pany in your vicinity.
The regular care and observance of
some basic prerequisites guarantee
malfunction-free operation and a
long service life of the unit.
Before all work on the units,
the power supply must be dis-
connected and secured against
reactivation!
ATTENTION
Care
Keep the unit free of soiling,
plants, and other deposits.
Clean the unit only using a
moistened cloth.
Do not use a water jet.
Do not use sharp, abrasive, or
solvent-container cleaners.
Before longer downtime peri-
ods, clean the fins of the unit:
Maintenance
We recommend concluding a
maintenance contract with an
annual maintenance interval
with a corresponding
specialist company.
In this way, you can guarantee
the operational safety
of the system at all times!
TIP
Type of work
Check / maintenance / inspection
Commis-
sioning
Monthly
Semi-annual
Annual
General
Clean the dirt trap
Check the medium filling
Check the circulation pump
Soiling / damage to the condenser
Check the glycol quality
Check the voltage and current
Check the direction of rotation
Check the compressor
Check the fan
Check the refrigerant filling amount
Check the condensate drain
Check the insulation
Seal tightness check of cooling circuit
1)
The legal requirements
demand a seal tightness
check of the cooling circuit
depending on refrigerant
filling amount. The check
and documentation thereof
must be performed by
corresponding expert
personnel.
NOTE
1) See note
17
This unit was manufactured using the latest production methods and tested repeatedly for perfect function.
If malfunctions still occur, please check the list according to the list below. In case of systems with indoor and
outdoor units, the "Troubleshooting and customer service" chapters in both operating instructions must be ob-
served. If all functional checks have been performed and the unit is still not functioning perfectly, please notify
your closest dealer.
Troubleshooting and customer service
Malfunction
Please observe the continuation of this fault remedy table on the next page
Fault Code Effect Possible cause Remedy
The
unit does
not start
The display does not light up. No power supply
Check the power connections at the
general supply terminals and check the
voltage values.
Check the fuses on the secondary side
of the additional transformer.
APS /
ASPh
The phase sequence relay does
not switch through.
Incorrect phase sequence.
The phase sequence relay
KA3 does not grant an
enable.
- LED not active.
Exchange the external conductor of the
power supply on the terminal strip on
the control panel.
The display is lit, but the unit
does not start.
Unit in standby
See the "Button functions" section for
the activation of the system.
OFF
The display indicates "OFF." No external enable
Check the connection to Terminals 2-3
(external enable).
The unit does not start and
the compressor symbol flashes
on the display.
Start-up delay
Wait until the start-up delay is over
(max. 360 sec.), after which the
compressor should start
The lower display flashes
and alternatively shows an
alphanumerical code and the
temperature value.
One or more of the
safety devices reacted
Check which safety device has reacted,
remedy the cause of fault, and reset the
safety device (see "Resetting faults")
C(n)tr
Compressor contactor defec-
tive, overcurrent protection
switch;
compressor reacted.
Does the compressor
symbol light up and is the
contactor energised?
Have the contactor or compressor
exchanged by a specialist company.
The unit
works
at a
reduced
cooling/
heating
capacity
The thermal load was in-
creased in the cooling mode.
Has a structural change
been made?
Observe safety distances.
C: Inlet flow temperature too
high.
H: Inlet flow temperature too
low.
Does the inlet flow
temperature amount to
about C = 5 - 10°C,
H = 35 - 50°C?
Reduce (C) or increase (H) the return
temperature.
Air in the medium circuit.
Have automatic bleed-
ers been installed at the
highest point?
Bleed manually or install an automatic
bleeder.
Condensation temperature too
high.
Are the fins clean and
have the operating limits
been observed?
Clean the fins, shade the unit, and ob-
serve the operating limits.
Incorrect parameter setting. Check the setting. Change the settings.
Inching mode due to low
demand.
Is the system oversized?
Increase the medium volume flow rate
by installing a storage tank.
Medium
outlet
Pipe leakage or insulation
defects.
Is leakage present and
are all lines insulated?
Seal off and insulate.
Thawing phase during heating
mode.
Is the heating mode set? Normal operating state.
REMKO KWG
18
Malfunction
Fault Code Possible cause Check Remedy
The unit
does not
start or
switches
itself off
autono-
mously
Power failure
Is all other electrical equipment
functioning?
Check the voltage and wait for
reactivation.
Unit fuse / main disconnecter
switched off
Does the unit have power?
Switch on the unit fuse / main
switch.
Waiting period too short Is the compr. symbol flashing?
Plan for a longer waiting
period.
C(n)Mn
The maintenance interval
of compressor (n) has been
reached
Have the compressor mainte-
nance performed by a specialist
company
Reset the operating hours after
the maintenance interval.
AEP(n)
The maintenance interval of
the circulation pump has been
reached
Have the circulation pump
maintenance performed by a
specialist company
Reset the operating hours after
the maintenance interval.
APS /
ASPh
Incorrect electrical direction of
rotation of the mains supply
Has the phase sequence relay
switched through?
Change the direction of rota-
tion.
StbY
The controller is in standby
mode
Does the compressor symbol
light up?
Apply voltage and
select the operating mode.
Return temperature or param-
eter setting incorrect
Check the setting. Change the settings.
OFF No fault
Is the "external enable" ena-
bling contact closed?
Close / open
contact used.
AP1 Defective sensor, medium inlet Check of resistor PB1 Replace the defective sensor.
AP2
Defective sensor, medium
outlet
Check of resistor PB2 Replace the defective sensor.
AP 3-6 Defective transm. condensation Check of transmitter PB Replace the defective transmit..
AP
Defective sensor, outdoor tem-
perature
Check of resistor PB Replace the defective sensor.
Atr1
Cabled remote control not con-
nected
Check of the connection / line
of the cabled remote control
If missing, set Parameter CF 74
from "1" to "0"
b(n)HP
High-pressure fault
Circuit n
Are the fans rotating?
Is the air inlet of the condenser
free of objects?
Have it checked by
a specialist company.
b(n)LP
Low-pressure fault
Circuit n
Is the pressure in the cooling
circuit OK?
Have it checked by
a specialist company.
b(n)hP Overtemperature of condenser
Are the fans rotating?
Is the air inlet of the condenser
free of objects?
Have it checked by
a specialist company.
b(n)hP
Undertemperature of condenser
Circuit n
Have the operating tempera-
tures been exceeded?
Decommission the system.
b(n)AC
b(n)AH
Anti-frost protection has
reacted
Circuit n
Is the temperature of the inlet
flow 4°C or lower?
Increase the return temperature,
increase the medium volume
flow rate
.
AEFL
Differential pressure monitor /
flow monitor
reacted
Are the following items OK:
- Medium volume flow rate
- No air in the medium
lines
- Circulation pump capacity
- Switches the differential pres-
sure /
flow monitor
- Shut-off valves open
- Medium pressure too low
Have it checked by
a specialist company.
Atr1
Cabled remote control not
configured or connected
Does the cabled remote control
function perfectly?
Have the remote control and/
or parameters checked by a
specialist company.
AEt1,
b(n)tF,
A(n)tr,
b(n)HP
APS /
ASPh
Control fuse F1 230V triggered Has fuse F1 triggered?
Have the fuse replaced by a
specialist company.
19
Fault indication with code
Code Alarm type Reset
Input
type
Deactivation
Input value
Automatic
Manual
Digital
Analogue
Only signalling
Compressor(s)
Condenser
fan
Circulation
pump
ACF Configuration error x x x
AEFL
Differential pressure monitor / flow monitor /
medium pressure switch reacted
FL / PS
x
x x x x
AEP1 Maintenance interval of circulation pump 1 PA 29 x x
AEP2 Maintenance interval of circulation pump 2 PA 30 x x
AEht Medium inlet temperature too high PB1
x
x x
ALc1 General fault, unit 1
x
x x x
ALOC Unit off
x
x x x x
AP1 Temperature sensor defective (medium inlet) PB1 x x x x
AP2 Temperature sensor defective (medium outlet) PB2 x x x x
AP3 Temp. sensor / pressure transmitter defective PB3 x x x x
AP4 Temp. sensor / pressure transmitter defective PB4 x x x x
AP5 Temp. sensor / pressure transmitter defective PB5 x x x x
AP6 Temp. sensor / pressure transmitter defective PB6 x x x x
AP7 Temp. sensor / pressure transmitter defective PB7 x x x x
AP8 Temp. sensor / pressure transmitter defective PB8 x x x x
AP9 Temp. sensor / pressure transmitter defective PB9 x x x x
AP10 Temp. sensor / pressure transmitter defective PB10 x x x x
APS /
ASPh
Phase sequence relay reacted / defective KA3
x
x x x x
ArtF Real-time clock defective x x
ArtC Fault counter defective x x
AtE1
Overcurrent protection switch of circulation
pump 1
QM 11 x x x x
AtE2
Overcurrent protection switch of circulation
pump 2
QM 11 x x x x
Atr1 Cabled remote control not connected QE 9-10-11 x x x x
b(n)HP High-pressure circuit (n) HP 1 - 2 x(n) x(n)
b(n)LP Low-pressure circuit (n) LP 1 - 2 x(n) x(n)
b(n)AC Anti-frost protection circuit (n), cooling mode PB1 x(n) x(n) x(n) x(n)
b(n)AH Anti-frost protection circuit (n), heating mode PB1 x(n) x(n) x(n) x(n)
b(n)hP
Overtemperature, condensation / overtem-
perature, condensation
RPT (n) x(n) x(n) x(n) x(n)
b(n)lP
Evaporation pressure low / overtemperature
evaporator; control fuse FU4 triggered
RPT (n) x(n) x(n) x(n) x(n)
b(n)tF Overheating protect., condenser fan circuit (n) TX 1-6 x(n) x(n) x(n) x(n)
b(n)dF Thawing time exceeded, circuit (n)
C(n)HP High-pressure, compressor (n) x(n)
C(n)tr
Thermal contact of compressor (n), overcur-
rent protection switch, overheating protection
triggered
QT 1-6 x(n) x(n)
C(n)Mn Maintenance interval, compressor (n) CO 53 - 58 x(n) x(n)
Messages
OFF External enabling contact opened x x x x x
b(n)dS Manual deactivation, circuit (n) CrEn x x(n)
C(n)dS Manual deactivation, compressor (n) CoEn x x(n)
Reset
1. Faults with automatic reset: The faults are reset automatically.
2. Faults with manual reset: The fault can be reset only by a specialist after the fault has been remedied.
3. Faults with partial manual reset: The fault is reset automatically at first; after that, it can only be reset manually by a specialist after the fault has been remedied.
REMKO KWG
20
Mounting instructions for expert personnel
For the installation of the entire
system, the operating instruc-
tions of the indoor units and
the chiller and/or heating sys-
tem must be observed.
The indoor units and chiller
work independently. They do
not have to be interconnected.
Select an installation site that
guarantees free air inlet and
outlet. See the "Minimum
clearance" section.
Do not install the unit in the
direct vicinity of units with
intensive heat radiation.
Installation in the vicinity of
heat radiation reduces the unit
output.
Lift the unit only at the in-
tended points. Never load the
medium or refrigerant lines.
The medium connection lines,
valves, and connections must
be insulated in a vapour-
diffusion-tight manner. If
necessary, the condensate
line (only units with heat
pump function) must also be
insulated. In combined systems
with cooling and heating
modes, the requirements of
the current energy savings
ordinance (Energie-Einspar-
Verordnung (EnEV) in
Germany) must be observed.
Protect open lines against the
penetration of dirt. Never press
in the lines.
Avoid unnecessary bends.
Establish all electrical
connections according to the
locally valid regulations.
Always connect electrical
lines properly to the electrical
terminals.
Fires may otherwise result.
Observe the static and other
construction regulations and
conditions in regard to the
installation site.
When selecting the installation
site, pay attention to a possible
noise reflection of the units in
the environment and on the
mounting surface.
To prevent the transmission of
vibrations to the mounting sur-
face, the units must be mount-
ed on vibration-absorbent
materials or vibration-isolated
foundations.
Make sure the lines are also
vibration-isolated.
If special requirements are
placed on the noise emissions
of the installation site, locally
adapted sound insulation
measures must be taken.
In such cases, please contact
a corresponding specialist
consultant.
Important information
prior to installation
2 Vertical unit transport
Tension point
1 Upright unit transport
Transport
Bring the unit as close
as possible to the installation
site
while still in the original
packaging. In this way, you can
prevent
transport damage.
The units may be moved only
into their mounting position
(upright) using suitable means
of transport (Figure 1).
Secure against tipping!
The unit must be transported
in a vertical position to higher
installation sites (Figure 2).
Check the package contents
for completeness and check the
unit for visible transport dam-
age.
Report any damage immediate-
ly to your contracting partners
and the shipping company.
21
Lift
Min.
2000 mm
Tension point
Cross beam wider than the unit width
2400 mm
Tension point
Cross beam wider
than the unit width
Wall breakthroughs
We recommend that you insu-
late the inside of the hole or use
a PVC pipe to prevent damage
to the lines.
After mounting, close off the
wall breakthrough on site with
suitable sealing compound. Do
not use materials containing
cement or lime!
Mounting materials
The unit is attached to the floor
using vibration dampers (acces-
sory). When fastening the unit to
the wall, particularly observe the
load capacity of the bracket and
the wall.
Selection of the installation
site
The unit is designed for outdoor,
horizontal, upright installation. The
installation site of the unit must
be horizontal, even, and firm. In
addition, the unit must be secured
against tipping.
The unit can be installed both
outside and inside a building.
During outdoor installation, ob-
serve the following notices regard-
ing the protection of the unit
against the effects of weathering.
Definition of the
danger zone
Only authorised and trained
personnel may have access to the
unit. If unauthorised personnel
could enter the danger zones, they
must be labelled with correspond-
ing signs / barriers, etc.
The outer danger zone sur-
rounds the unit with at least
2 m, measured from the unit
housing.
The outer danger zone can dif-
fer as a result of the setup. The
specialist company performing
the installation is responsible for
this matter.
The inner danger zone is
located inside the machine
and can be accessed only
using corresponding tools.
Unauthorised persons must not
access this danger zone!
Rain
In case of installation onto the
floor or roof, there must be a mini-
mum floor clearance of 10 cm.
In the case of units for cooling and
heating (heat pump function only),
a raised installation increases the
generated heating capacity.
REMKO KWG
22
Wind
3 Wind protection
20 cm
Snow
4 Minimum distance to snow
Sun
The air-cooled condenser is a heat-
dissipating component in cooling
mode.
Direct sunlight also increases the
temperature of the fins and thus
reduces the heat dissipation of the
fin heat exchanger.
The unit should be set up on the
north side of the respective build-
ing, if possible.
On-site shading should be set up
as required.
A small roof suffices.
The emerging hot air flow, how-
ever, must not be influenced by
the measures.
Wind
If the unit is primarily installed
in windy regions, make sure that
the emerging hot air flow is dis-
sipated in the main wind direction.
If this is not possible, install wind
protection on site (Fig 3).
Make sure that the wind protec-
tion does not interfere with the air
supply of the unit.
Snow
In areas with high snowfall, the
unit should be mounted onto a
wall.
It should be mounted at least 20
cm above the expected snow-
fall height to prevent snow from
penetrating into the outdoor unit
(Fig. 4).
Setup inside the building
Provide a means of sufficient
heat dissipation if the outdoor
unit is to be installed in a cellar,
attic, utility rooms, or halls (Fig.
5).
Install an additional fan that
has the same air volume flow
rate of the outdoor unit to be
set up in the room and that can
compensate additional pressure
losses through air ducts
(Fig. 5).
Observe the static and other
construction
regulations and conditions in
regard to the building and pro-
vide sound insulation if neces-
sary.
Guarantee a continuous, un-
hindered air supply from the
outside, possibly using oppos-
ing, sufficiently large air open-
ings (Fig. 5).
Due to ambient influences,
such as rain, sun, wind, and
snow, the generated cooling or
heating capacity will change.
NOTE
Hot air
Cold
fresh air
Light
shaft
Chiller
Hot air
Light
shaft
Additional
fan
5 Installation inside the building (cooling mode)
23
Installation
NOTE
Installation must only be car-
ried out by authorised special-
ists.
Unit installation
1. Mount the vibration dampers
(accessory) under the unit.
2. Install the unit to statically per-
missible parts of the building.
3. Make sure that no structure-
borne noise is transmitted to
parts of the building.
4. Connect the medium lines.
Disassembly of the transport pal-
lets
The units must be equipped with
transport pallets for transport
purposes. They must be removed
before mounting.
Transport packaging
Transport pallet
Minimum clearances
The following figure shows the minimum clearances for a malfunction-free operation of the units.
These protection zones are used for unhindered air inlet and outlet, for ensuring sufficient space for mainte-
nance and repairs, and for protecting the unit against damage.
Size 1 Size 2 Size 3
KWG, KWG...P, KWG...SP 400, 500, 600 750, 850, 950, 1100, 1300 1500, 1750
KWG...SLN, KWG...P SLN, KWG...SP SLN
400, 500 600, 750, 850, 950, 1100 1300, 1500, 1750
A 1000 1200 1400
B 1000 1500 2000
C 1000 1000 1000
D 1000 1500 2000
E 2000 2500 3000
All dimensions in mm
Minimum clearances
Size 1 Size 2 Size 3
E
B
C
D
A
B
C
D
A
E
B
C
D
A
E
REMKO KWG
24
Required system components
SYSTEM component diagram
Legend:
1 Differential pressure monitor
2 Dirt trap
3 Shut-off valve
4 Capacitor
5 Pressure indicator
6 Drain
7 Bleeder
8 Safety valve
9 Circulation pump
10 Line regulating valve
11 Diaphragm expansion vessel
12 Plate heat exchanger (evaporator)
13 Medium storage tank
REMKO scope of supply
On-site
scope of supply
KWG 400 to 1750
1
7
7
8
9
13
10
6
4
4
12
5 5
3
3
11
2
KWG 400 P to 1750 P with external medium storage tank
REMKO scope of supply
On-site
scope of delivery
1
7
7
8
9
13
10
6
4
4
12
5 5
3
3
11
11
2
KWG 400 P to 1750 P with external medium storage tank
as hydraulic switch
REMKO scope of supply
On-site
scope of delivery
1
7
7
8
9
13 10
6
4
4
12
5 5
3
3
11
11
2
KWG 400 SP to 1750 SP with internal medium storage tank
REMKO scope of supply
On-site
scope of delivery
1
7
7
8
9
13
10
6
4
4
12
5 5
3
3
11
11
2
25
Medium lines
The medium lines can be designed
as copper, steel, or plastic pipes.
To minimise pressure losses, only
fittings that are favourable to flow
should be used.
During design, the large volume
flow rates of cold water systems,
higher pressure losses due to a
water/glycol mixtures, and the
minimum volume flow rate of the
chiller must be taken into consid-
eration.
The line must be insulated in a
vapour-diffusion-tight manner, and
any current, local energy savings
ordinances must be observed. UV
resistance must be implemented
outdoors.
Victaulic connectors
The connection to the unit is
implemented using Victaulic con-
nectors. The Victaulic connectors
offer many advantages, such as
vibration reduction of the internal
pipeline at the connection to the
on-site pipework. The pipe adapter
allows a welded or threaded con-
nection to the on-site pipework.
The connection can be seen in the
following figures:
Victaulic connectors
Pressure and temperature indica-
tors
The pressure and temperature in-
dicators to be installed in the inlet
and outlet on site are used to set
the medium volume flow rate. The
indicators should be lockable.
The chiller contains temperature
sensors in the medium inlet, me-
dium outlet, and condenser. Using
the controller, the sensor values
can be queried.
Line regulating valves
Using line regulating valves
provided on site, the individual
pressure losses calculated in the
pipe network design are adapted
to each individual unit in the
overall system. Due to the pressure
loss, the nominal volume flow
rates of the medium are adapted
to the required values. If necessary,
a line regulating valve is required
in the inlet flow line to regulate the
volume flow rate in case the pump
pressure is too high.
Connection of the medium
lines
The on-site connection of the
lines takes place on the rear of
the units.
For servicing purposes, the
connections must be equipped
with shut-off valves and the
volume flow rate must be set
using line regulating valve.
Additional automatic bleeding
valves are provided in the inlet
flow, return, and highest point
of the installation.
The medium lines must not
exert static loads on the unit.
The connection of the lines
must not generate thermal or
mechanical stress on the unit.
Cool the line if necessary and/
or dolly with a second tool.
If the unit is initially operated
with only part of the overall
system, the medium volume
flow rate of the missing parts of
the system must be simulated
using line regulating valves.
The pipe dimensioning must be
designed in such a way that the
required minimum volume flow
rate is not undershot.
Pipe routing
KWP 400-1750
No pipe routing
possible
Free pipe
routing
possible
In order for the minimum
volume flow rate to be
reached, a permanent, high
volume flow rate must be
guaranteed.
!
ATTENTION
Source: Victaulic
REMKO KWG
26
Minimum / maximum volume
flow rate
The circulation pump of the chiller
generates a constant medium
volume flow rate; a pressure loss
in the system and in the chiller is
the result. The differential pres-
sure switch / flow monitor in the
chiller measures the medium pres-
sure loss through the evaporator
and switches off the unit in case
the minimum volume flow rate is
undershot.
In addition, a medium volume flow
rate that is too high must not be
exceeded (maximum volume flow
rate).
To guarantee a constant volume
flow rate, three way valves with a
bypass, a hydraulic switch for the
setup of a primary and secondary
circuit, or a bypass that depends
on the volume flow rate are re-
quired.
Pressure and temperature indica-
tors
The pressure and temperature in-
dicators to be installed in the inlet
and outlet on site are used to set
the medium volume flow rate. The
indicators should be lockable.
The chiller contains temperature
sensors in the medium inlet, me-
dium outlet, and condenser. Using
the controller, the sensor values
can be queried.
Line regulating valves
Using line regulating valves
provided on site, the individual
pressure losses calculated in the
pipe network design are adapted
to each individual unit in the
overall system. Due to the pressure
loss, the nominal volume flow
rates of the medium are adapted
to the required values.
Flow monitor / differential pres-
sure monitor
Flow monitors are used to monitor
the minimum medium volume
flow rate and are installed in the
standard version of units with the
medium storage tank (KWG...SP/
KWP...SP).
For units without a medium stor-
age tank (KWG, KWG...P, KWP,
KWP...P), flow monitors must
be installed on site and adjusted
according to the nominal volume
flow rate in the pipe network.
Electrically, the monitors must be
connected to the terminals pro-
vided in the switch cabinet (see the
separate wiring diagram).
Minimum medium volume, sys-
tem
A minimum medium volume of
the system of 4.0 l/kW per output
stage must not be undershot. For
units with a heat pump function
(KWP), a minimum medium vol-
ume of 6.0 l/kW is required.
To guarantee more constant tem-
peratures in the medium circuit,
higher volumes may be required.
Pressure switch for medium circuit
(only for KWG...SP and KWP...SP)
A pressure switch in the medium
circuit monitors the current me-
dium pressure and switches off the
circulation pump and thus the unit
when the plant pressure is too low.
For the adjustment of the circula-
tion pump, we recommend that a
main line regulating valve be pro-
vided in the vicinity of the unit.
NOTE
Guarantee of the minimum volume flow rate through a three-way valve
Correct
installation
Incorrect
installation
Two-way
valve
Three-way
valve
External medium storage tank for
KWG (...P) and KWP (...P)
For the KWG, KWG...P, KWP, and
KWP...P units, additional medium
storage tanks are required.
If, for example, the required out-
put of the cold water consumers is
considerably lower than the gener-
ated cooling capacity of the chiller,
we recommend that the medium
contents be increased. The me-
dium pipes, for example, could be
oversized or an additional storage
tank could be used to increase the
compressor operating time.
If the minimum medium volume
of the system is not reached, a
storage tank must generally be
provided.
27
Diaphragm expansion vessel
To prevent pressure fluctuations
during standstills due to
temperature changes, diaphragm
expansion vessels with a nitrogen
filling (moisture-neutral) must be
integrated into the system.
The standard version of the
KWG...P, KWG...SP, KWP...P,
and KWP...SP units include a
diaphragm expansion vessel. The
volume of these diaphragm expan-
sion vessels are designed only for
those units. The system requires an
additional diaphragm expansion
vessel designed for this system.
An individual design is required for
the KWG and KWP units.
The calculation can be performed
with roughly 5 to 10% diaphragm
expansion vessel volume of the
system volume.
The pre-pressure of all diaphragm
expansion vessels must be set on
the system.
Safety valve 6.0 bar
Safety valves limit an operating
pressure that is too high due to ex-
cessive heating or an overfilling of
the operating medium. The valve
outlet requires a free feed into a
drain line. When glycol is used, the
local disposal regulations must be
observed.
The standard version of the unit
includes a safety valve.
Bleeding valves
The unit has manual bleeding
valves. After the filling of the
system, the unit can be bled here
separately. In addition, automatic
bleeding valves must be mounted
at the highest point of the collec-
tive line.
When media containing glycol
are used, glycol-resistant
bleeding valves must be used.
ATTENTION
Capacitors
In order not to transmit the
vibrations of the chiller to the
system parts, we recommend the
use of capacitors to connect the
lines to the unit, in addition to
Victaulic connectors.
Capacitors
Shut-off valve Capacitor
Static
fastening
KWG connection
Shut-off valves
In cold water systems, shut-off
valves with full throughput should
fundamentally be used. For
servicing purposes, the medium
inlet and medium outlet must be
equipped with shut-off valves
(with safety valve, if required).
Circulation pump for KWG and
KWG...SP
For units without a storage tank,
an external circulation pump is
required for the implementation
of the nominal volume flow rate
within the chiller!
Actuation takes place via the ter-
minal strip using a controller of the
chiller.
Incorrectly installed or missing
dirt traps can cause a soiling of
the plate heat exchanger.
ATTENTION
Filling and bleeding connection
A connection for bleeding the
pipelines (especially when water
is used as the medium) should be
provided in the anti-frost-protect-
ed area. When glycol is used, the
local disposal regulations must be
observed.
Dirt trap
A rinsable dirt trap must be in-
stalled in front of the unit inlet.
The mesh size should not exceed
10 meshes/cm². Shut-off valves
should be used upstream and
downstream of the dirt trap.
If the minimum medium volume
flow rate of the system is under-
shot, malfunctions may result.
NOTE
Anti-frost protection (accessory)
A water/glycol mixture is usu-
ally used as the medium of a cold
water system. According to the
glycol type and amount used, the
viscosity changes, the pressure
loss increases, and the dissipated
cooling and/or heating capacity
of the unit decreases. All system
components must be released for
use with glycol.
In general, we recommend that
34% ethylene glycol with in-
hibitors for corrosion protection be
added to the water. This concen-
tration guarantees anti-frost safety
up to –20°C; at lower tempera-
tures, an ice slush that no longer
has a bursting effect arises.
If the medium could come into
contact with drinking water or
food, a toxicologically harmless
medium based on propylene glycol
must be preferred.
REMKO KWG
28
During use and disposal, ob-
serve the product and safety
data sheets of the glycol type
used.
Glycol
percentage
Anti-frost
protection
+-2°C
Correction factor when a mixture
of glycol* and water is used
Cooling
capacity
Power
consumption
Volume
flow rate
Pressure
loss
Vol. % °C K
L
K
PE
K
V
K
D
0 0 1 1 1 1
20 -9 0.960 0.995 1.040 1.19
35 -21 0.950 0.990 1.090 1.35
40 -26 0.925 0.985 1.105 1.51
Use the type and mixing ratio
required for your application to
guarantee the freezing point.
* We recommend that ethylene glycol be used. Observe the safety and product data
sheets of the glycol type used.
To prevent the bursting effect,
38% is generally required in this
case.
!
ATTENTION
!
ATTENTION
+
> 5 sec.
< 2 sec.
< 2 sec.
< 2 sec.
> 5 sec.
< 2 sec. ...
< 2 sec. ...
+
> 5 sec.
Normal
display
St
submenu
Entry
Anti-frost protec-
tion, cooling
"Anti-frost protec-
tion, cooling"
parameter
Input
Parameter level
Open parameter
AL 34
AL
submenu
Entry
assumed
The following values must then be entered:
0% ethylene
glycol
(factory
settings)
10% ethylene
glycol
20 % ethylene
glycol
30 % ethylene
glycol
35 % ethylene
glycol
Value AL
34
3°C -2°C -6°C -15°C -19°C
Value AL
41
3°C -2°C -6°C -15°C -19°C
Configuration of the anti-frost protection parameters
When a water/glycol mixture is used, it might be necessary to
reconfigure the anti-frost protection parameters. In the AL menu item,
the Al 34 parameters can be changed within the limits of parameter Al
32/33 without the entry of a password.
Factory setting for KWG cooling:
Lower anti-frost protection setting Parameter AL 32 = -19°C
Upper anti-frost protection setting Parameter AL 33 = +7°C
Activation of the
anti-frost protection fault Parameter AL 34 = +4°C
The following program sequence must be programmed.
Configuration of parameter AL 34
29
Condensate drainage connection
A condensate drip pan must be
mounted under the unit to drain
any condensate that occurs.
The on-site condensate line
must be laid with a slope of at
least 2%.
If necessary, provide vapour-
diffusion-tight insulation.
In case of an operation of
the unit under 4°C outdoor
temperature, a frost-free laying
of the condensate line must be
observed. The lower housing
cladding and condensate drip
pan must also be kept frost-
free to guarantee permanent
draining of the condensate.
If necessary, an accompanying
pipe heater must be provided.
After laying, the free drain-
age of the condensate must be
checked and permanent seal
tightness must be guaranteed.
+
+
+
+
+
+
Condensate drainage
Condensate drip pan
Condensate drainage
Under certain weather
conditions, a growing icing can
develop at the bottom of the
fin heat exchanger. To prevent
this formation of ice, we
recommend that you keep the
heat exchanger free of frost on
both sides, for example, using
a strip heater.
NOTE
Condensate connection
and safe drainage
Secured drainage in case of leaks
Regional regulations or laws
governing environmental
protection, such as a local water
ecology act (Wasserhaushaltgesetz
(WHG) in Germany), can
require suitable measures for
the prevention of unmonitored
drainage in case of a leak in order
to
dispose of emerging refrigerator oil
or potentially hazardous
substances safely.
REMKO KWG
30
Electrical connection
mented in the switch cabinet of
the unit.
The lines to be laid are intro-
duced into the switch cabinet
through the provided cable
bushings of the unit.
The dimensioning and selection
of the fuse protection and line
cross-sections to be laid must
be performed by an expert.
Please observe the possible
residual currents with up to 10
times the nominal current.
The following electrical connec-
tions
must be established:
Connection of the power sup-
ply
Possible connection of an
enabling contact for stopped
operation or standby
Possible connection of an
operating mode contact for
cooling or heating mode (only
units with heat pump function)
Possible connection of a
collective fault message
notification function
Possible connection of a cir-
culation pump (only KWG..P,
KWP..P)
Possible connection of a crank-
case heater (accessory)
Possible connection of a winter
fan control (accessory)
Possible connection of a cabled
remote control (accessory)
Possible connection of an anti-
frost protection medium heater
(accessory, installation only at
the factory)
Voltage supply
The unit requires a permanently
installed three-phase current con-
nection. The mains supply line
must be connected to the L1, L2,
L3, and PE terminals.
All electrical installations
must be implemented by
specialist companies. The
electrical connections must
be mounted when the system
is de-energised.
ATTENTION
The power supply takes place
on the chiller; a control line to
the indoor unit is not required.
An all-pole, disconnecting
switch must be installed in
the supply line upstream of
the unit. This switch reacts in
case of a failure of individual
external conductors.
The electrical connections
must be designed as fixed
connections according to the
applicable regulations.
Check all terminal points for
tightness.
The supply line must be suf-
ficiently fuse-protected on site
and the voltage loss must not
exceed the permissible values.
Make sure that the electrical
system is suitable for providing
the operating current required
to operate the unit and supply
other units that are already in
operation.
Before installation, check the
connection to already existing
system parts as to whether
the supply line of the unit is
sufficiently dimensioned for the
connected load of the unit.
The unit must always be
connected using sufficiently
dimensioned - multiple, if
necessary - low-impedance
protective earthing conductors
(especially for plastic pipes).
During the installation of the
units onto flat roofs, lightning
protection measures might be
necessary.
All electrical connections, such
as the mains supply, cabled
remote control, etc., are imple-
We recommend that you fuse-pro-
tect the unit with safety fuses.
NOTE
All electrical plug and terminal
connections must be checked
for a firm seat and permanent
contact and retightened if
necessary.
ATTENTION
For connection, procedure as fol-
lows:
1. Open the control panel and
cover of the switch cabinet
by removing the fastening
screws and covers.
2. Conduct the de-energised lines
through the openings in the
switch cabinet and engage the
line in the tension relief.
3. Then connect the line according
to the connection diagram.
4. Make sure the rotating field is
correct.
5. Mount all dismantled parts.
6 TERMINAL connections
31
Connection of an external
enabling contact (optional)
Operation / standby
In addition to operation with the
controller or cabled remote con-
trol, the unit can be switched on
(standby) and off (normal opera-
tion) using an external floating
contact (programmed as an N.O.
contact) (Fig. 7).
A change in the function logic (as
N.C. contact) is not possible.
This enable is used, for example,
to implement downtimes at night
or an activation/deactivation of a
GLT.
Connection of the collective
fault
message notification function
(standard equipment)
The connection of a floating col-
lective fault message notification
function, for example, for signal-
ling or further processing on a GLT,
is possible in the standard version.
For this purpose, use the corre-
sponding connection diagram and
observe the maximum contact load
(Fig. 7).
7 External floating contacts
2-3 Operation / standby enable (floating)
4-5 External fault message notification function
(max. 230V~, 3A)
2-6 Cooling / heating mode enable (floating)
Unit
Users
Connection of an external
operating mode contact (op-
tional)
for cooling/heating mode
(units with heat pump func-
tion)
In the standard version, the unit
is programmed for operation with
the controller and/or cabled re-
mote control. If a switchover from
cooling or heating mode (Fig. 7)
should take place using an external
floating contact (input), parameter
SP 9 must be reprogrammed to
1 (for the programming, see the
"Configuration of the switchover
between cooling and heating"
section). After the switchover, only
the external enable for cooling/
heating mode can be used.
Configuration of the switchover between cooling and heating
(external contact)
The controller is programmed at the factory for the switchover between
cooling and heating on the controller. When an external contact is used
to switchover between cooling and heating, a regulation parameter must
be reconfigured. Parameter SP 9 must be switched over from 0 to 1. In
the SP menu item, the parameter SP 9 can be changed in level 1.
Factory setting for KWP...H heating:
Switchover between cooling and heating Parameter SP 9 = 0
"0" = operation on controller, "1" = operation through switchover con-
tact
The following program sequence must be programmed.
After the programming procedure, the "heating
mode" is activated with an open contact between
terminals 2 and 6. Display =
After the programming procedure, the "cool-
ing" is activated with a closed contact between
terminals 2 and 6. Display =
Configuration of parameter SP 9
+
> 5 sec.
< 2 sec.
< 2 sec.
< 2 sec.
> 5 sec.
< 2 sec. ...
< 2 sec. ...
+
> 5 sec.
Normal
display
St
submenu
Entry
C-H switchover
Parameter
C-H switchover
Input
Parameter level
Standby
mode
Open parameter
SP 9
SP
submenu
Entry
assumed
/
> 5 sec.
REMKO KWG
32
Electrical components
Electrical components and
safety equipment
Pressure monitor for cooling cir-
cuit HP and LP
Within the cooling circuit, a high-
pressure monitor (HP) is located in
the hot gas line for the deactiva-
tion of the chiller in case of a lack-
ing heat dissipation.
A low-pressure monitor (LP) in the
suction line or compressor is used
to deactivate the chiller if the filling
amount of refrigerant is too low.
Connection of a cabled
remote control (accessory)
The cabled remote control is used
to query and program or operate
the unit from a remote position.
For this purpose, use the corre-
sponding mounting instructions.
Connection of an anti-frost
protection medium heater
(accessory)
The anti-frost protection medium
heater permits a unit operation
even without a percentage of
glycol at low ambient temperatures
up to a maximum of -10°C. It is
installed at the factory and cannot
be retrofitted.
For operation, use the correspond-
ing mounting instructions.
Connection of a winter fan
control (accessory)
The winter fan control is used
to expand the operating range
in cooling mode from +15°C to
-15°C. The set consists of a crank-
case heater, speed control of the
fans, and pressure control. For this
purpose, use the corresponding
mounting instructions.
For units with a free-cooling func-
tion, it is installed at the factory.
Connection of an external
circulation pump (on-site ac-
cessory)
The KWG and KWP unit series is
intended for an on-site circulation
pump. The connection must be es-
tablished according to the electrical
wiring diagram.
The medium-side volume flow rate
must be achieved as otherwise the
differential pressure monitor / flow
monitor does not grant an enable.
Switchover valve of EV cooling
circuit
(only units with heat pump func-
tion)
The switchover valve enables the
switchover of the cooling circuit
to change the cooling and heating
modes.
Pressure transducer in the cooling
circuit
High pressure RPT
The pressure transducer is located
in the hot gas line of the cool-
ing circuit. It is used to record the
current condensation pressure to
regulate the fan using the con-
troller. The currently measured
pressure is displayed under CdP1
(circuit 1) and CdP2 (circuit 2).
Pressure transducer in the cooling
circuit
Low pressure RPT
The pressure transducer is located
in the suction line of the cool-
ing circuit. It is used to record the
current suction gas pressure. The
currently measured pressure is
displayed under LP1 (circuit 1) and
LP2 (circuit 2).
Connection of a crankcase
heater
Compressor (standard/acces-
sory)
The heater is used to expand the
operating range in cooling opera-
tion from +15°C to +5°C. For this
purpose, use the corresponding
mounting instructions.
For units with a heat pump or free-
cooling function, it is installed at
the factory.
33
Measurement tem-
perature
Sensor resistance value
NTC 103 AT
-20 67770 Ω
-15 53410 Ω
-10 42470 Ω
-5 33900 Ω
0 27280 Ω
+5 22050 Ω
+10 17960 Ω
+15 14690 Ω
+20 12090 Ω
+25 10000 Ω
+30 8313 Ω
+35 6940 Ω
+40 5827 Ω
+45 4911 Ω
+50 4160 Ω
+55 3536 Ω
+60 3020 Ω
+65 2588 Ω
+70 2228 Ω
+75 1924 Ω
+80 1668 Ω
+85 1451 Ω
+90 1266 Ω
+95 1108 Ω
+100 973 Ω
Differential pressure monitor
FL medium circuit
The differential pressure monitor
is installed in the medium circuit
in parallel with the evaporator. It
measures the pressure difference
between the input and output
pressure and switches off the unit
when the minimum volume flow
rate is undershot or in case of ex-
tremely high volume flow rates.
Medium circuit PS pressure switch
The pressure switch is located only
in units with storage tanks. This
switch monitors the medium pres-
sure.
Thermal contacts
Condenser fans TX
The thermal contacts of the con-
denser fans prevent an overheat-
ing of the motors.
Thermal contact of circulation
pump QM
The thermal contact is located
inside the circulation pump and
limits its coil temperature.
Phase sequence relay KA3
The phase sequence relay moni-
tors the direction of rotation of the
power supply. In case of an incor-
rect direction of rotation, regula-
tion is not enabled.
Winter fan control, fan control
board FCS1
Using a modulating output volt-
age, the speed of the condenser
fan can be adapted to the con-
densation temperature and thus
a minimum noise level can be
observed.
The IPro controller determines the
current condensation temperature
on the condenser using the high-
pressure transducer. The set value
is then regulated using the fan
control board.
Medium inlet sensor B1
The sensor is located in the me-
dium inlet (system return) of the
unit.
It is used to record the current
actual temperature to regulate the
set value.
Medium outlet sensor B2
The sensor is located in the me-
dium outlet (system inlet flow) of
the unit.
It is used to record the current ac-
tual temperature and monitor the
anti-frost protection temperature.
Fan control sensor B3
The sensor is located on the capac-
itor of the cooling circuit. It is used
to record the current condensation
temperature in cooling mode for
low-noise fan control.
REMKO KWG
34
Seal tightness
monitoring
After the connection is established,
the seal tightness check is
performed.
1. Rinse the system twice with
clean tap water.
2. Clean the sieve insert of the on-
site dirt trap.
3. Refill the system with water and
bleed the unit at the manual
bleeding valves.
4. Adapt the test pressure to min.
250 kPa (2.5 bar).
5. Check the established
connections for water leakage
after a period of at least 24
hours. If leakage is visible,
the connection has not been
correctly established. Tighten
the screw connections or
establish a new connection.
6. After a successful seal tightness
test, release the overpressure
from the medium lines in the
case of water/glycol mixtures or
adapt the standstill pressure to
the required system pressure.
Before Commissioning
Filling the system
The system is filled using the on-
site filling and bleeding port.
Anti-frost protection of medium
If a water/glycol mixture is used, it
should be added to the system in
pre-mixed form. The desired con-
centration must be checked again
afterwards.
Unit pre-pressure of medium
The medium pre-pressure (without
the operation of the circulation
pump) inside the system varies.
From the highest point, the pres-
sure increases with about 10 kPa
(0.1bar) per meter in height (geo-
detic height). The value measured
at the highest point is called the
standstill pressure.
During the determination of the
unit pre-pressure (pressure of the
on-site pressure gauge on the
unit), the arrangement of the unit
in the
system is decisive. The pressure
must be set to a minimum of 70
kPa (0.7 bar)
.
Bleeding the system
Air may still be located in the
pipelines after the seal tightness
check. This air is transported to
the next higher cold water con-
sumer through the operation
of the circulation pump. Here,
bleeding must be performed
once again (Fig. 8).
Bleed the pump as well, if nec-
essary.
After that, adapt the standstill
pressure to the required system
pressure.
If the unit is positioned at the
lowest point in the system, the
unit pre-pressure (= standstill
pressure + geodetic system
height) must be set to a mini-
mum of 70 kPa (0.7 bar) + 10
kPa (0.1bar) x geodetic system
height.
If the unit is positioned at the
highest point in the system,
the unit pre-pressure (= stand-
still pressure) must be set to a
minimum of 70 kPa (0.7 bar).
Please note that the system
pressure is increased by the
geodetic system height at the
lowest point!
8 Manual bleeder
Manual
bleeder
Unit pre-pressure
Geodetic
system height
Unit pre-pressure
Unit pre-pressure
Standstill pressure
35
The units are equipped with
a phase sequence relay which
prevents an operation of the
controller in case of an incor-
rect direction of rotation of the
electrical mains connection.
If the controllers shows the
fault code "APS" during com-
missioning, the rotating field
must be changed.
NOTE
During manual bleeding, any
emerging glycol mixtures must
be disposed of separately.
NOTE
Additional checks
General checks
Check of the minimum clear-
ances for the correct dimen-
sions
Check of the possibility of
dissipating the cooling and/or
heating capacity via the cold
water and/or hot water con-
sumer (indoor unit)
Electrical checks
Check of the electrical con-
nection for the correct phase
sequence
Functional check of the cooling
/ heating mode enable (option-
al)
Functional check of the opera-
tion / standby enable (optional)
Check of the medium circuit
Check of the circulation pump
for free running
Check whether all valves are
open
Check of the medium circuit
Setting of the nominal volume
flow rate of the circulation
pump
Check of the cooling circuit
Check of the cooling circuit for
leaking oil/refrigerant
Check of the cooling circuit for
pressure tightness
Diaphragm expansion vessel
The pre-pressure of the dia-
phragm expansion vessel must
be adapted individually accord-
ing to the system setup, me-
dium volume, and installation
site.
If necessary, the installation
site must be changed. For this
purpose, a manufacturer release
is required.
For cooling and heating sys-
tems, the volume and pre-pres-
sure of the diaphragm expan-
sion vessel must be adapted to
both types of operation and an
additional diaphragm expansion
vessel must be integrated into
the system if necessary.
A minimum volume of 5 litres
per kW cooling or heating ca-
pacity must be planned for the
overall system.
Line regulating valves
The excess pressure at the
individual cold water consumers
determined in the pipe network
design
must be adjusted at the line
regulating valves.
Safety valve
The safety valves and their cor-
rect function must be checked.
The drain line of the valves
must be checked for function
and seal tightness.
If necessary, the installation
site must be changed. For this
purpose, a manufacturer release
is required.
REMKO KWG
36
For the commissioning of the
entire system, the operating
instructions of the unit and all
other components must be
observed.
Commissioning may be
performed by specially trained
expert personnel only and
documented according to the
certificate.
NOTE
Commissioning
Function test of the
cooling mode:
1. Switch on the power supply.
2. Open all shut-off valves if nec-
essary.
3. Switch on the unit and the per-
tinent circulation pump at the
highest power level. The outlet
temperature must lie between
+4 and +18°C.
4. Switch on the unit and select
the cooling mode.
If the return temperature is
warmer than the setting, the
compressor indicator flashes
and the compressor begins
to function after about 3 to 5
minutes.
5. Please note that the inlet flow
temperatures lies about 5 K
below the return temperature
at the nominal volume flow rate
of the medium.
- If the inlet flow temperature
falls below the factory setting
of 4°C, a fault will be indi-
cated.
If this is the case, the return
temperature must be set to
a higher value. If the spread
is too large or too small, the
volume flow rate must be
checked.
- The circulation pump starts up
and the control system checks
the medium volume flow rate
using the differential pressure
monitor.
If the volume is too low, a
fault deactivation will be per-
formed and the cooling circuit
will not obtain an enable.
6. Measure all required values,
enter them in the commission-
ing log, and check the safety
functions.
7. Check the unit control system
with the functions described in
the "Operation" chapter.
Final measures
Mount all dismantled parts.
Train the plant owner in the
system.
The factory delivery of the
units includes a standard
parameterisation of the power
control.
If necessary, have authorised
specialist personnel perform a
system-specific setting of the
parameters during commis-
sioning.
NOTE
37
The emission of refrigerant
contributes to climate
change. In case of an
escape, refrigerant with a
lower greenhouse potential
contributes less to global
warming as those with high
greenhouse potential.
This unit contains refrigerant
with a greenhouse potential
of 1975. An escape of 1 kg of
this refrigerant thus has a 1975
times
greater effect on global warm-
ing than 1 kg CO
2
over 100
years. Do not work on the
cooling circuit or dismantle the
unit – always involve specialist
personnel for these tasks.
NOTE
Servicing and repair must be
performed only by specially
trained specialist personnel
and documented accordingly.
NOTE
Servicing and repair
Cooling circuit
Repairs to the cooling circuit must
be documented in the operating
instructions. The following
measures must be observed:
Environmentally sound collec-
tion and disposal of refrigerant
and defective components
Proper and constantly per-
formed repairs with the intend-
ed connection materials and
original spare parts
Long-lasting seal tightness
check according to the
maximum pressure occurring
Long-lasting and proper evacu-
ation and drying of the cooling
circuit
Proper filling with varietally
pure refrigerant and the
corresponding amount
according to the operating
instructions / type plate
Function check of the safety
components
Medium circuit
Repairs to the medium circuit are
to be performed and documented
according to the current regula-
tions and/or regional guidelines.
The following measures must be
observed:
Environmentally sound
collection and disposal of
operating media and defective
components
Proper and constantly per-
formed repairs with the intend-
ed connection materials and
original spare parts
Long-lasting seal tightness
check according to the maxi-
mum pressure occurring
Function check of the safety
components
Proper filling with varietally
pure operating medium
Electrical components
Repairs to the electrical compo-
nents are to be performed and
documented according to the
current regulations and/or regional
guidelines. The following measures
must be observed:
Environmentally sound disposal
of defective components
Proper and constantly per-
formed repairs with original
spare parts
Inspection of the unit and / or
system according to the cur-
rently valid regulations and
guidelines, e.g, protection
against direct contact, damage
to / defects in components,
changes in factory-provided
components, etc.
Testing of the unit and /
or system according to the
currently valid regulations and
guidelines, e.g., equipment for
protection against electrical
shocks / overvoltage / incorrect
rotating field, overcurrent
protection equipment,
display and fault message
notification equipment, locking
mechanisms, etc.
Measurement and assessment
of the unit and / or system
according to the currently valid
regulations and guidelines,
e.g., insulation resistance, loop
impedance, residual current
operated protective devices,
low-impedance connection
of the protective earthing
conductor, earthing resistance,
integration into lightning
protection measures, etc.
When handling refrigerant,
wear corresponding protective
clothing.
!
ATTENTION
The refrigerant used may be
filled only in liquid form.
!
ATTENTION
All service/repairs must take
place when the system is de-
energised.
!
ATTENTION
REMKO KWG
38
Unit dimensions
We reserve the right to make changes to dimensions and the design in the interest of technical advances.
A varying number of vibration dampers are available as accessories staggered according to unit size. These dampers must
be added to the dimensions above!
All dimensions in mm
KWG Size 1
KWG Size 2
KWG Size 3
4255
228 228760 760 760 760760
1123
1068
Inlet
Outlet
1954
1720
260 133
350 211
Fastening of vibration damper
1955
228 228750750
1123
1068
Inlet
Outlet
1954
1720
260 133
350 211
Fastening of vibration damper
3005
228 228850 850850
1123
1068
Inlet
Outlet
1954
1720
260 133
350 211
Fastening of vibration damper
39
Series
400
500
600
750
850
950
1100
1300
1500
1750
Size
KWG , KWG... P,
KWG... SP
1 2 3
KWG SLN, KWG...
P SLN, KWG... SP
SLN
1 2 3
Characteristic curves and outputs
Circulation pumps KWG...P, KWG...SP
Size 400 500 600 750 850 950 1100 1300 1500 1750
Nominal volume flow rate 6.80 8.53 10.04 13.07 14.54 16.06 19.37 22.25 26.10 29.84
KWG...P/SP 210/2 370/1 370/2 370/3
KWG...P/SP SLN
210/2 370/1 370/2 370/3
Circulation pump
210/2 370/1 370/2 370/3
Voltage supply 400V/3~/50Hz
Electr. nominal output 1.10 1.47 2.00 3.00
Electr. nominal current 2.10 2.72 3.65 3.65
100,0
105,0
110,0
115,0
120,0
125,0
130,0
135,0
140,0
145,0
150,0
155,0
160,0
165,0
170,0
175,0
180,0
185,0
190,0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
KWG 400
210/2
KWG 500
KWG 600
80,0
85,0
90,0
95,0
100,0
105,0
110,0
115,0
120,0
125,0
130,0
135,0
140,0
145,0
150,0
155,0
160,0
165,0
170,0
175,0
180,0
185,0
190,0
195,0
200,0
205,0
210,0
215,0
220,0
225,0
230,0
235,0
240,0
245,0
250,0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
KWG 750
KWG 850
KWG 950
KWG 1100
KWG 1300
KWG 1500
KWG 1750
370/3
370/2
370/1
REMKO KWG
40
Internal pressure loss
1,4 1,6 1,8 2,0 2,2 2,4 2,6 2,8 3,0
3,2
3,4 3,6
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
1,1 1,3 1,5 1,7 2,1 2,3 2,5 2,7 2,9
3,1
3,3 3,5
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
1,6 1,9 2,2 2,5 2,8 3,1 3,4 3,7 4,0
4,3
4,6 4,9
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
3,2 3,7 4,2 4,7 5,2 5,7 6,2 6,7 7,2
7,7
8,2 8,7
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
2,4 2,8 3,2 3,6 4,0 4,4 4,8 5,2 5,4
6,0
6,4 6,8
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
2,1 2,4 2,7 3,0 3,3 3,6 3,9 4,2 4,8
5,1
5,4 5,7
L/sek
4,4 4,9 5,4 5,9 6,4 6,9 7,4 7,9 8,4
8,9
9,4 9,9
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
3,7 4,2 4,7 5,2 5,7 6,2 6,7 7,2 7,7
8,2
8,7 9,2
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
5,0 5,7 6,4 7,1 7,8 8,5 9,2 9,9 10,6
11,3
12,0 12,7
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
2,4 2,8 3,2 3,6 4,0 4,4 4,8 5,2 5,4
6,0
6,4 6,8
0,0
10,0
20,0
30,0
40,0
50,0
60,0
KPa
L/sek
KWG 400 KWG 500
KWG 600 KWG 750
KWG 850 KWG 950
KWG 1100 KWG 1300
KWG 1500 KWG 1750
41
REMKO KWG
42
KWG 400 KWG 500 KWG 600 KWG 750 KWG 850
Medium
outlet
Air inlet temperature
°C 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40
Q
K
[kW]
5 41.8 39.6 37.7 35.7 52.6 49.8 47.3 44.9 61.9 58.6 55.7 52.8 85.9 78.5 72.2 66.3 89.5 84.7 80.5 76.3
6 42.9 40.7
38.6
36.6 54.0 51.1 48.6 46.1 63.6 60.1 57.1 54.2 88.0 80.6 74.2 68.1 91.9 87.0 82.6 78.3
7 44.1 41.8 39.5 37.6 55.5 52.5 49.7 47.3 65.3 61.8 58.4 55.6 90.3 82.8 75.9 70.1 94.5 89.4 84.5 80.4
8 45.4 42.9
40.8
38.6 57.0 54.0 51.3 48.5 67.1 63.5 60.3 57.1 92.7 85.1 78.5 72.2 97.1 91.8 87.2 82.6
9 46.6 44.1 41.8 39.6 58.6 55.4 52.6 49.8 68.9 65.2 61.9 58.6 95.0 87.3 80.5 74.1 99.7 94.3 89.5 84.7
10 47.8 45.2 42.9 40.6 60.1 56.9 53.9 51.1 70.8 66.9 63.5 60.1 97.4 89.5 82.6 76.1 102.3 96.8 91.8 86.9
12 50.8 48.0 45.5 43.0 63.9 60.4 57.2 54.1 75.2 71.0 67.4 63.7 103.2 94.9 87.7 80.9 108.7 102.7 97.4 92.1
15 55.6 52.5 49.7 46.9 69.9 66.0 62.4 59.0 82.2 77.6 73.5 69.4 112.5 103.5 95.7 88.3 118.9 112.3 106.3 100.4
18 60.7 57.2 54.1 51.1 76.3 72.0 68.1 64.2 89.7 84.7 80.2 75.6 122.0 112.4 103.9 95.8 129.7 122.5 115.9 109.3
20 64.1 60.4 57.1 153.8 80.6 76.0 71.8 67.7 94.7 89.4 84.6 79.7 128.2 118.1 109.1 100.5 137.0 129.3 122.3 115.3
KWG 400 SLN KWG 500 SLN KWG 600 SLN KWG 750 SLN KWG 850 SLN
Medium
outlet
Air inlet temperature
°C 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40
Q
K
[kW]
5 40.9 38.8 36.9 35.0 50.5 47.9 45.5 43.2 62.5 59.2 56.2 53.3 82.6 75.6 69.5 63.8 90.4 85.6 81.4 77.2
6 42.0 39.8
37.8
35.9 51.9 49.2 46.7 44.3 64.2 60.8 57.7 54.7 84.7 77.6 71.4 65.6 92.9 87.9 83.5 79.2
7 43.2 40.9 38.7 36.8 53.4 50.5 47.8 45.5 66.0 62.5 59.0 56.2 87.0 79.7 73.0 67.5 95.5 90.3 85.4 81.3
8 44.4 42.0
39.9
37.8 54.9 51.9 49.3 46.7 67.8 64.2 60.9 57.7 89.3 81.9 75.5 69.5 98.1 92.8 88.1 83.5
9 45.6 43.1 40.9 38.8 56.3 53.3 50.6 47.9 69.6 65.9 62.5 59.2 91.5 84.0 77.5 71.3 100.7 95.3 90.4 85.6
10 46.8 44.3 42.0 39.8 57.8 54.7 51.9 49.1 71.5 67.6 64.1 60.7 93.7 86.1 79.5 73.2 103.4 97.8 92.8 87.8
12 49.8 47.0 44.5 42.1 61.4 58.0 55.0 52.0 75.9 71.8 68.0 64.3 99.4 91.4 84.4 77.8 109.9 103.8 98.4 93.1
15 54.4 51.4 48.6 45.9 67.2 63.4 60.0 56.7 83.0 78.4 74.3 70.2 108.3 99.7 92.2 85.0 120.1 113.5 107.5 101.5
18 59.4 56.0 53.0 50.0 73.4 69.2 65.4 61.7 90.6 85.6 81.0 76.4 117.5 108.2 100.0 92.2 131.1 123.8 117.1 110.5
20 62.8 59.2 55.9 52.7 77.5 73.1 69.1 65.1 95.7 90.3 85.5 80.6 123.4 113.7 105.1 96.8 138.4 130.7 123.6 116.5
KWG 950 KWG 1100 KWG 1300 KWG 1500 KWG 1750
Medium
outlet
Air inlet temperature
°C 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40
Q
K
[kW]
5 101.5 94.7 88.8 83.1 127.4 116.5 107.2 98.3 142.4 132.1 123.2 114.6 171.7 157.1 144.4 133.5 183.8 174.0 165.3 156.8
6 104.1 97.2 91.2 85.4 130.6 119.6 110.1 101.1 146.1 135.6 126.5 117.8 176.0 161.2 148.3 139.0 188.7 178.6 169.6 160.8
7 107.0 99.9 93.3 87.7 134.1 122.9 112.6 104.1 150.0 139.3 129.4 121.1 180.7 165.6 151.8 143.0 194.0 183.5 173.5 165.1
8 109.9 102.7 96.3 90.2 137.6 126.3 116.4 107.1 154.1 143.2 133.7 124.5 185.5 170.2 156.9 146.7 199.4 188.6 179.0 169.6
9 112.8 105.3 98.8 92.5 141.0 129.5 119.5 110.0 158.0 146.9 137.2 127.8 190.1 174.5 161.0 150.9 204.7 193.6 183.7 173.9
10 115.7 108.1 101.4 94.9 144.5 132.8 122.6 112.9 162.1 150.7 140.7 131.1 194.8 178.9 165.2 155.2 210.1 198.7 188.5 178.4
12 122.7 114.7 107.6 100.7 153.2 140.9 130.2 120.0 171.9 159.9 149.4 139.2 206.5 189.9 175.5 164.3 223.2 210.9 200.0 189.1
15 134.0 125.3 117.5 109.9 166.9 153.7 142.1 131.0 187.6 174.6 163.1 151.9 224.9 207.1 191.5 178.2 244.1 230.5 218.3 206.2
18 145.9 136.4 127.9 119.5 181.1 166.8 154.2 142.1 204.1 189.9 177.3 165.1 244.1 224.8 207.9 192.4 266.4 251.5 238.0 224.5
20 153.8 143.7 134.6 125.8 190.3 175.2 162.0 149.2 214.8 199.9 186.6 173.6 256.4 236.2 218.3 202.4 281.3 265.5 251.1 236.7
Medium spread t = 5 K; 0% glycol concentration; Q
K
= total cooling capacity
Cooling capacity
43
KWG 950 SLN KWG 1100 SLN KWG 1300 SLN KWG 1500 SLN KWG 1750 SLN
Medium
outlet
Air inlet temperature
°C 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40 25 30 35 40
Q
K
[kW]
5 100.9 94.2 88.3 82.7 124.0 113.4 104.3 95.7 144.0 133.6 124.5 115.9 165.8 151.7 139.5 128.0 170.4 161.3 153.2 145.3
6 103.6 96.7 90.7 84.9 127.1 116.3 107.1 98.4 147.7 137.1 127.9 119.0 170.0 155.6 143.3 131.6 174.9 165.6 157.3 149.1
7 106.4 99.4 92.8 87.3 130.4 119.6 109.6 101.3 151.7 140.9 130.8 122.4 174.5 160.0 146.6 135.5 179.8 170.1 160.8 153.1
8 109.3 102.1 95.8 89.7 133.9 122.9 113.3 104.2 155.8 144.8 135.1 125.9 179.1 164.3 151.5 139.4 184.8 174.9 166.0 157.2
9 112.1 104.8 98.3 92.0 137.2 126.0 116.2 107.0 159.8 148.5 138.6 129.2 183.6 168.5 155.5 143.2 189.8 179.5 170.3 161.2
10 115.0 107.5 100.8 94.4 140.6 129.2 119.3 109.8 163.8 152.3 142.2 132.6 188.1 172.8 159.5 146.9 194.8 184.2 174.7 165.4
12 122.1 114.1 107.0 100.2 149.0 137.1 126.7 116.8 173.8 161.7 151.0 140.7 199.4 183.4 169.5 156.2 206.9 195.6 185.4 175.3
15 133.3 124.6 116.9 109.3 162.4 149.5 138.2 127.5 189.6 176.5 164.8 153.6 217.2 200.0 184.9 170.5 226.3 213.7 202.4 191.2
18 145.1 135.6 127.2 118.8 176.2 162.3 150.1 138.3 206.3 192.0 179.3 166.9 235.7 217.1 200.7 185.0 246.9 233.1 220.7 208.1
20 152.9 142.9 133.9 125.1 185.1 170.5 157.6 145.2 217.2 202.1 188.6 175.5 247.7 228.1 210.8 194.2 260.8 246.1 232.8 219.5
Medium spread t = 5 K; 0% glycol concentration; Q
K
= total cooling capacity
We reserve the right to make changes to dimensions and the design in the interest of technical advances.
Unit description, KWG 400 to 600
4
15
10
11
12
2
9
5
6
7
1
14
16
17
18
13
3
8
4
19
20
REMKO KWG
44
Spare parts list
No. Designation
KWG 400
(P, SP)
KWG 400
(P, SP)SLN
KWG 500
(P, SP)
KWG 500
(P, SP)SLN
KWG 600
(P, SP)
KWG (SLN) as of serial number 1033...00... 1033...30... 1033...01... 1033...31... 1033...02...
KWG P (SLN) as of serial number 1033...10... 1033...40... 1033...11... 1033...41... 1033...12...
KWG SP (SLN) as of serial number 1033...20... 1033...50... 1033...21... 1033...51... 1033...22...
1 Control panel, compressor unit 1120700 1120700 1120700 1120700 1120700
2 Fan panel 1120701 1120701 1120701 1120701 1120701
3 Roof panel 1120705 1120705 1120705 1120705 1120705
4 Side panel 1120706 1120706 1120706 1120706 1120706
5 Side panel 1120709 1120709 1120709 1120709 1120709
6 Transport bracket 1120711 1120711 1120711 1120711 1120711
7 Air-cooled condenser, right 1120723 1120723 1120723 1120724 1120724
8 Air-cooled condenser, left 1120737 1120737 1120737 1120738 1120738
9 Condenser fan 1120749 1120750 1120749 1120750 1120749
10 Evaporator 82-70 1120756 1120756 - - -
10 Evaporator 82-80 - - 1120751 1120751 -
10 Evaporator 82-100 - - - - 1120752
11 Compressor SCP 270 1120765 1120765 - - -
11 Compressor SCP 315 - - 1120762 1120762 -
11 Compressor SCP 400 - - - - 1120763
12 Circulation pump (P, SP) 210-2 1120766 1120766 1120766 1120766 1120766
13 Diaphragm expansion vessel 5 litres (P, SP) 1120770 1120770 1120770 1120770 1120770
14 Safety valve, medium circuit, 6bar (P, SP) 1120773 1120773 1120773 1120773 1120773
15 Medium storage tank (SP) 1120774 1120774 1120774 1120774 1120774
16 Pressure gauge 1120776 1120776 1120776 1120776 1120776
17 Medium circuit pressure switch (SP) 1120781 1120781 1120781 1120781 1120781
18 Controller cover 1120777 1120777 1120777 1120777 1120777
19 Victaulic coupling with rubber seal 1120690 1120690 1120690 1120690 1120690
20 Victaulic nipple 100mm 1120691 1120691 1120691 1120691 1120691
Spare parts without illustration
High pressure monitor 1120782 1120782 1120782 1120782 1120782
Low pressure monitor 1120783 1120783 1120783 1120783 1120783
Complete expansion valve BBZE-15 1120790 1120790 1120790 1120790 -
Complete expansion valve OZE-20 - - - - 1120786
Pressure transducer, cooling circuit 1120796 1120796 1120796 1120796 1120796
Safety valve, cooling circuit 44bar 1120797 1120797 1120797 1120797 1120797
Differential pressure switch SFS-90 1120801 1120801 - - -
Differential pressure switch SFS-105 - - 1120802 1120802 1120802
Phase sequence relay 1120804 1120804 1120804 1120804 1120804
Controller IPS 408D-11010 1120805 1120805 1120805 1120805 1120805
Controller IPS 408, programmed 1120837 1120838 1120839 1120840 1120841
Transformer 400/230 1120853 1120853 1120853 1120853 1120853
Transformer 230/24 30VA 1120854 1120854 1120854 1120854 1120854
Transformer 230/24 10VA 1120855 1120855 1120855 1120855 1120855
Medium inlet/outlet sensor, environment 1120856 1120856 1120856 1120856 1120856
Compressor contactor 1120859 1120859 1120859 1120859 1120860
Circulation pump contactor (P, SP) 1120861 1120861 1120861 1120861 1120861
Condenser fan contactor 1120861 1120861 1120861 1120861 1120861
Fan control, winter fan control 1120862 1120862 1120862 1120862 1120862
Crankcase heater 1106368 1106368 1106368 1106368 1106368
When ordering spare parts, please indicate both the reference number and the machine number (see type plate)!
45
We reserve the right to make changes to dimensions and the design in the interest of technical advances.
4
15
10
11
12
2
9
5
6
7
1
14
18
13
3
8
4
Unit description, KWG 600 (SLN) to 850 (SLN)
16
17
17
18
REMKO KWG
46
Spare parts list
When ordering spare parts, please indicate both the reference number and the machine number (see model plate)!
No. Designation
KWG 600
(P, SP)SLN
KWG 750
(P, SP)
KWG 750
(P, SP)SLN
KWG 850
(P, SP)
KWG 850
(P, SP)SLN
KWG (SLN) as of serial number 1033...32... 1033...03... 1033...33... 1033...04... 1033...34...
KWG P (SLN) as of serial number 1033...42... 1033...13... 1033...43... 1033...14... 1033...44...
KWG SP (SLN) as of serial number 1033...52... 1033...23... 1033...53... 1033...24... 1033...54...
1 Control panel, compressor unit 1120700 1120700 1120700 1120700 1120700
2 Fan panel 1120701 1120701 1120701 1120701 1120701
3 Roof panel 1120705 1120705 1120705 1120705 1120705
4 Side panel 1120706 1120706 1120706 1120706 1120706
5 Side panel 1120709 1120709 1120709 1120709 1120709
6 Transport bracket 1120711 1120711 1120711 1120711 1120711
7 Air-cooled condenser, right 1120712 1120712 1120712 1120712 1120712
8 Air-cooled condenser, left 1120726 1120726 1120726 1120726 1120727
9 Condenser fan 1120750 1120749 1120750 1120749 1120750
10 Evaporator 82-100 1120752 1120753 1120753 1120754 1120754
11 Compressor SCP 400 1120763 - - 1120763 1120763
11 Compressor SCP 510 - 1120764 1120764 - -
12 Circulation pump (P, SP) 210-2 1120766 - - - -
12 Circulation pump (P, SP) 370-1 - 1120767 1120767 1120767 1120767
12 Circulation pump (P, SP) 370-2 - - - - -
13 Diaphragm expansion vessel 5 litres (P, SP) 1120770 - - - -
13 Diaphragm expansion vessel 8 litres (P, SP) 1120771 1120771 1120771 1120771
14 Safety valve, medium circuit, 6bar (P, SP) 1120773 1120773 1120773 1120773 1120773
15 Medium storage tank (SP) 1120774 1120775 1120775 1120775 1120775
16 Pressure gauge 1120776 1120776 1120776 1120776 1120776
17 Medium circuit pressure switch (SP) 1120781 1120781 1120781 1120781 1120781
16 Controller cover 1120777 1120777 1120777 1120777 1120777
17 Victaulic coupling with rubber seal 1120690 1120692 1120692 1120692 1120692
18 Victaulic nipple 100mm 1120691 1120693 1120693 1120693 1120693
Spare parts without illustration
High pressure monitor 1120782 1120782 1120782 1120782 1120782
Low pressure monitor 1120783 1120783 1120783 1120783 1120783
Complete expansion valve - 1120785 1120785 1120785 1120785
Complete expansion valve OZE-20 1120786 - - - -
Pressure transducer, cooling circuit 1120796 1120796 1120796 1120796 1120796
Safety valve, cooling circuit 44bar 1120797 1120797 1120797 1120797 1120797
Differential pressure switch SFS-105 1120802 1120802 1120802 1120802 1120802
Phase sequence relay 1120804 1120804 1120804 1120804 1120804
Controller IPS 408D-11010 1120805 1120805 1120805 1120805 1120805
Controller IPS 408, programmed 1120842 1120843 1120844 1120845 1120846
Transformer 400/230 1120853 1120853 1120853 1120853 1120853
Transformer 230/24 30VA 1120854 1120854 1120854 1120854 1120854
Transformer 230/24 10VA 1120855 1120855 1120855 1120855 1120855
Medium inlet/outlet sensor, environment 1120856 1120856 1120856 1120856 1120856
Compressor contactor 1120860 1120860 1120860 1120860 1120860
Circulation pump contactor (P, SP) 1120861 1120861 1120861 1120861 1120861
Condenser fan contactor 1120861 1120861 1120861 1120861 1120861
Fan control, winter fan control 1120862 1120863 1120863 1120863 1120863
Crankcase heater 1106368 1106368 1106368 1106368 1106368
47
We reserve the right to make changes to dimensions and the design in the interest of technical advances.
4
15
10
11
12
2
9
5
6
7
1
14
18
13
3
8
4
Unit description, KWG 950 to 1300
16
17
17
18
REMKO KWG
48
Spare parts list
When ordering spare parts, please indicate both the reference number and the machine number (see model plate)!
No. Designation
KWG 950
(P, SP)
KWG 950
(P, SP) SLN
KWG 1100
(P, SP)
KWG 1100
(P, SP) SLN
KWG 1300
(P, SP)
KWG (SLN) as of serial number 1033...05... 1033...35... 1033...06... 1033...36... 1033...07...
KWG P (SLN) as of serial number 1033...15... 1033...45... 1033...16... 1033...46... 1033...17...
KWG SP (SLN) as of serial number 1033...25... 1033...55... 1033...26... 1033...56... 1033...27...
1 Control panel, compressor unit 1120700 1120700 1120700 1120700 1120700
2 Fan panel 1120701 1120701 1120701 1120701 1120701
3 Roof panel 1120705 1120705 1120705 1120705 1120705
4 Side panel 1120706 1120706 1120706 1120706 1120706
5 Side panel 1120709 1120709 1120709 1120709 1120709
6 Transport bracket 1120711 1120711 1120711 1120711 1120711
7 Air-cooled condenser, right 1120712 1120713 1120713 1120713 1120725
8 Air-cooled condenser, left 1120726 1120727 1120727 1120740 1120740
9 Condenser fan 1120749 1120750 1120749 1120750 1120749
10 Evaporator 82-100 1120754 1120754 1120755 1120755 1120757
11 Compressor SCP 400 2 x 1120763 2 x 1120763 - - 2 x 1120763
11 Compressor SCP 510 1 x 1120764 1 x 1120764 1120764 1120764 2 x 1120764
12 Circulation pump (P, SP) 370-1 1120767 1120767 1120767 1120767 -
12 Circulation pump (P, SP) 370-2 - - - - 1120768
13 Diaphragm expansion vessel 8 litres (P, SP) 1120771 1120771 1120771 1120771 1120771
14 Safety valve, medium circuit, 6bar (P, SP) 1120773 1120773 1120773 1120773 1120773
15 Medium storage tank (SP) 1120775 1120775 1120775 1120775 1120775
16 Pressure gauge 1120776 1120776 1120776 1120776 1120776
17 Medium circuit pressure switch (SP) 1120781 1120781 1120781 1120781 1120781
16 Controller cover 1120777 1120777 1120777 1120777 1120777
17 Victaulic coupling with rubber seal 1120692 1120692 1120692 1120692 1120694
18 Victaulic nipple 100mm 1120693 1120693 1120693 1120693 1120695
Spare parts without illustration
High pressure monitor 1120782 1120782 1120782 1120782 1120782
Low pressure monitor 1120783 1120783 1120783 1120783 1120783
Complete expansion valve 1120785 1120785 - - 1120785
Complete expansion valve 1120787 1120787
Pressure transducer, cooling circuit 1120796 1120796 1120796 1120796 1120796
Safety valve, cooling circuit 44bar 1120797 1120797 1120797 1120797 1120797
Differential pressure switch SFS-90 - - - - 1120803
Differential pressure switch SFS-105 1120802 1120802 1120802 1120802 -
Phase sequence relay 1120804 1120804 1120804 1120804 1120804
Controller IPS 408D-11010 1120805 1120805 1120805 1120805 1120805
Controller IPS 408, programmed 1120847 1120848 1120849 1120850 1120851
Controller expansion IPEX60 - - - - 1120852
Transformer 400/230 1120853 1120853 1120853 1120853 1120853
Transformer 230/24 30VA 1120854 1120854 1120854 1120854 1120854
Transformer 230/24 10VA 1120855 1120855 1120855 1120855 1120855
Medium inlet/outlet sensor, environment 1120856 1120856 1120856 1120856 1120856
Compressor contactor 1120860 1120860 1120860 1120860 1120860
Circulation pump contactor (P, SP) 1120861 1120861 1120861 1120861 1120861
Condenser fan contactor 1120861 1120861 1120861 1120861 1120861
Fan control, winter fan control 1120863 1120863 1120863 1120863 1120863
Crankcase heater 1106368 1106368 1106368 1106368 1106368
49
We reserve the right to make changes to dimensions and the design in the interest of technical advances.
4
15
10
11
12
2
9
5
6
7
1
14
18
13
3
8
4
Unit description, KWG 1300 (SLN) to 1750 (SLN)
16
17
19
20
REMKO KWG
50
Spare parts list
When ordering spare parts, please indicate both the reference number and the machine number (see model plate)!
No. Designation
KWG 1300
(P, SP) SLN
KWG 1500
(P, SP)
KWG 1500
(P, SP) SLN
KWG 1750
(P, SP)
KWG 1750
(P, SP) SLN
KWG (SLN) as of serial number 1033...37... 1033...08... 1033...38... 1033...09... 1033...39...
KWG P (SLN) as of serial number 1033...47... 1033...18... 1033...48... 1033...19... 1033...49...
KWG SP (SLN) as of serial number 1033...57... 1033...28... 1033...58... 1033...29... 1033...59...
1 Control panel, compressor unit 1120700 1120700 1120700 1120700 1120700
2 Fan panel 1120701 1120701 1120701 1120701 1120701
3 Roof panel 1120704 1120704 1120704 1120704 1120704
4 Side panel 1120707 1120707 1120707 1120707 1120707
5 Side panel 1120709 1120709 1120709 1120709 1120709
6 Transport bracket 1120711 1120711 1120711 1120711 1120711
7 Air-cooled condenser, right 1120865 1120714 1120866 1120867 1120866
8 Air-cooled condenser, left 1120868 1120728 1120869 1120868 1120869
9 Condenser fan 1120750 1120749 1120750 1120749 1120750
10 Evaporator 82-100 1120757 - - - -
10 Evaporator 222-110 - 1120760 1120760 - -
10 Evaporator 222-134 - - - 1120761 1120761
11 Compressor SCP 400 2 x 1120763 - - 1120763 1120763
11 Compressor SCP 510 2 x 1120764 1120764 1120764 - -
12 Circulation pump (P, SP) 370-2 1120768 1120768 1120768 - -
12 Circulation pump (P, SP) 370-3 - - - 1120769 1120769
13 Diaphragm expansion vessel 8 litres (P, SP) 1120771 - - - -
13 Diaphragm expansion vessel 18 litres (P, SP) - 1120772 1120772 1120772 1120772
14 Safety valve, medium circuit, 6bar (P, SP) 1120773 1120773 1120773 1120773 1120773
15 Medium storage tank (SP) 1120775 1120775 1120775 1120775 1120775
16 Pressure gauge 1120776 1120776 1120776 1120776 1120776
17 Medium circuit pressure switch (SP) 1120781 1120781 1120781 1120781 1120781
18 Controller cover 1120777 1120777 1120777 1120777 1120777
19 Victaulic coupling with rubber seal 1120694 1120694 1120694 1120694 1120694
20 Victaulic nipple 100mm 1120695 1120695 1120695 1120695 1120695
Spare parts without illustration
High pressure monitor 1120782 1120782 1120782 1120782 1120782
Low pressure monitor 1120783 1120783 1120783 1120783 1120783
Complete expansion valve OZE-35 1120785 1120785 1120785 1120785 1120785
Pressure transducer, cooling circuit 1120796 1120796 1120796 1120796 1120796
Safety valve, cooling circuit 44bar 1120797 1120797 1120797 1120797 1120797
Differential pressure switch SFS-130 1120803 1120803 1120803 1120803 1120803
Phase sequence relay 1120804 1120804 1120804 1120804 1120804
Controller IPS 408D-11010 1120805 1120805 1120805 1120805 1120805
Controller IPS 408, programmed 1120870 1120871 1120872 1120873 1120874
Controller expansion IPEX60 1120852 1120852 1120852 1120852 1120852
Transformer 400/230 1120853 1120853 1120853 1120853 1120853
Transformer 230/24 30VA 1120854 1120854 1120854 1120854 1120854
Transformer 230/24 10VA 1120855 1120855 1120855 1120855 1120855
Medium inlet/outlet sensor, environment 1120856 1120856 1120856 1120856 1120856
Compressor contactor 1120859 1120859 1120859 1120859 1120859
Circulation pump contactor (P, SP) 1120861 1120861 1120861 1120861 1120861
Condenser fan contactor 1120861 1120861 1120861 1120861 1120861
Fan control, winter fan control 1120864 1120864 1120864 1120864 1120864
Crankcase heater 1106368 1106368 1106368 1106368 1106368
51
REMKO KWG
52
Technical data
Series
KWG
400
KWG
500
KWG
600
KWG
750
KWG
850
KWG
950
KWG
1100
KWG
1300
KWG
1500
KWG
1750
Function
Air-cooled compact chiller with multi-stage power control
for cooling
Nominal cooling capacity
1)
kW 39.50 49.70 58.40 75.90 84.5 93.30 112.60 129.40 151.80 173.50
Energy efficiency ratio for cooling
EER
8)
2.48 2.56 2.57 2.61 2.48 2.52 2.67 2.58 2.62 2.57
Return temperature operating range
Cooling
°C +10 to +18
Operating range, cooling °C +15 to +45
Operating range, cooling
(expansion)
°C +5 to +45
5)
/ -15 to +45
6)
Number of cooling circuits 1 2
Power gradation % 0/50/100
0/33/
66/100
0/31/
62/100
0/33/
66/100
0/22/50/
72/100
0/25/50/
75/100
0/17/33/50/
67/83/100
Refrigerant R 410A
7)
Max. refrigerant operating pressure kPa 4200
Refrigerant, basic amount
per cooling circuit
kg 9.8 12.0 11.2 12.9 13.7 14.1 20.5 2x12.9 2x12.1 2x17.1
Compressor, number/type 2/scroll 3/scroll 4/scroll 6/scroll
Number of condenser fans 1 2 3
Max. air volume flow rate m³/h 21800 21200 21200 44400 44400 44400 43400 42400 66000 62580
Sound pressure level
3)
dB(A) 50.4 50.4 50.7 53.6 53.7 54.0 54.0 54.0 55.4 55.5
Sound power level dB(A) 82.4 82.4 82.7 85.6 85.7 86.0 86.0 86.0 87.4 87.5
Voltage supply V/Hz 400/3~/50
Type of protection IP 24
Max. electrical power consumption
4)
kW 24.94 28.13 33.81 45.59 52.17 56.60 65.47 76.49 88.27 101.43
Max. electrical current consumption
4)
A 36.04 40.64 48.85 65.87 75.38 81.78 94.59 110.51 127.53 146.55
Electrical nominal power consump-
tion, cooling
1)
kW 15.91 19.41 22.71 29.12 34.12 37.02 42.23 50.23 57.93 67.54
Electrical nominal current consump-
tion, cooling
1)
A 24.20 29.53 34.55 44.29 51.90 56.32 64.23 76.41 88.13 102.74
Max. electrical starting current LRA A 112.80 131.10 142.20 172.50 166.40 166.40 201.20 188.70 231.80 235.20
Operating medium Max. 35% ethylene glycol; max. 35% propylene glycol
Operating limits of medium °C +4 to +18
Max. medium operating pressure kPa 600
Nominal volume flow rate, medium
cooling
m³/h 6.80 8.53 10.04 13.07 14.54 16.06 19.37 22.25 26.10 29.84
Minimum flow rate, medium m³/h 5.40 6.80 8.00 10.40 11.60 12.80 15.40 17.80 20.80 23.80
Maximum volume flow rate, medium m³/h 8.10 10.20 12.00 15.60 17.40 19.20 23.20 26.70 31.30 35.80
Nominal pressure loss, internal cooling kPa 21.6 26.8 25.7 25.4 18.7 22.8 22.9 31.3 35.8 34.4
Medium port, inlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium port, outlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium contents, pipelines l 5.6 5.8 6.0 8.4 8.6 8.9 9.4 9.6 15.6 15.9
Minimum medium volume, system l 80.0 100.0 120.0 155.0 115.0 125.0 150.0 130.0 155.0 115.0
Dimensions - height mm 1954 1954 1954 1954 1954 1954 1954 1954 1954 1954
Width mm 1123 1123 1123 1123 1123 1123 1123 1123 1123 1123
Depth mm 1955 1955 1955 3005 3005 3005 3005 3005 4255 4255
Weight kg 528.1 553.6 559.4 701.2 778.0 780.7 832.1 941.6 1065.4 1270.9
Approx. operating weight kg 533.7 559.4 565.4 709.6 786.6 789.6 841.5 951.2 1081.0 1286.8
Serial colour similar to RAL 9018
Serial number RAL 9018
1033...00.. 1033...01.. 1033...02.. 1033...03.. 1033...04.. 1033...05.. 1033...06.. 1033...07.. 1033...08..
1033...09..
Reference number RAL 9018
1690400 1690500 1690600 1690750 1690850 1690950 1691100 1691300 1691500
1691750
1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration
2) Air inlet temperature TK 7°C, medium inlet 45°C, medium outlet 50°C, 0% glycol concentration
3) Distance 10 m in open air
4) Air inlet temperature TK 45°C, medium inlet 18°C, medium outlet 15°C, 0% glycol concentration
5) Only with the compressor crankcase heating as accessory
6) Only with the winter fan control set as accessory
7) Contains greenhouse gas according to Kyoto Agreement
8) Determined according to EN 14511
53
Series
KWG
400 P
KWG
500 P
KWG
600 P
KWG
750 P
KWG
850 P
KWG
950 P
KWG
1100 P
KWG
1300 P
KWG
1500 P
KWG
1750 P
Function
Air-cooled compact chiller with multi-stage power control and circulation pump for
cooling
Nominal cooling capacity
1)
kW 39.5 49.7 58.4 75.9 84.5 93.3 112.6 129.4 151.8 173.5
Energy efficiency ratio for cooling EER
8)
2.32 2.42 2.45 2.48 2.37 2.42 2.58 2.48 2.53 2.48
Return temperature operating range
Cooling
°C +10 to +18
Operating range, cooling °C +15 to +45
Operating range, cooling (expansion) °C +5 to +45
5)
/ -15 to +45
6)
Number of cooling circuits 1 2
Power gradation % 0/50/100
0/33/
66/100
0/31/
62/100
0/33/
66/100
0/22/50/
72/100
0/25/50/
75/100
0/17/33/50/
67/83/100
Refrigerant R 410A
7)
Max. refrigerant operating pressure kPa 4200
Refrigerant, basic amount per cooling
circuit
kg 9.8 12.0 11.2 12.9 13.7 14.1 20.5 2x12.9 2x12.1 2x17.1
Compressor, number/type 2/scroll 3/scroll 4/scroll 6/scroll
Number of condenser fans 1 2 3
Max. air volume flow rate m³/h 21800 21200 21200 44400 44400 44400 43400 42400 66000 62580
Sound pressure level
3)
dB(A) 50.7 50.7 51.0 53.9 54.0 54.3 54.3 54.3 55.7 55.8
Sound power level dB(A) 82.9 82.9 83.2 86.1 86.2 86.5 86.5 86.5 87.9 88.0
Voltage supply V/Hz 400/3~/50
Type of protection IP 24
Max. electrical power consumption
4)
kW 26.04 29.23 34.91 47.06 53.64 58.07 66.94 78.49 90.27 103.93
Max. electrical current consumption
4)
A 38.14 42.74 50.95 68.59 78.10 84.50 97.31 114.16 131.18 151.55
Electrical nominal power consumption,
cooling
1)
kW 17.01 20.51 23.81 30.59 35.59 38.49 43.70 52.23 59.94 70.04
Electr. nominal current consumption
Cooling
1)
A 26.30 31.63 36.65 47.01 54.62 59.04 66.95 80.06 91.78 107.74
Max. electrical starting current LRA A 112.80 131.10 142.20 172.50 166.40 166.40 201.20 188.70 231.80 235.20
Operating medium Max. 35% ethylene glycol; max. 35% propylene glycol
Operating limits of medium °C +4 to +18
Max. medium operating pressure kPa 600
Nominal volume flow rate, medium
cooling
m³/h 6.80 8.53 10.04 13.07 14.54 16.06 19.37 22.25 26.10 29.84
Minimum flow rate, medium m³/h 5.40 6.80 8.00 10.40 11.60 12.80 15.40 17.80 20.80 23.80
Maximum volume flow rate, medium m³/h 8.10 10.20 12.00 15.60 17.40 19.20 23.20 26.70 31.30 35.80
Max. nominal pump pressure kPa 166.0 160.0 154.0 149.0 143.0 138.0 124.0 151.0 128.0 141.0
Nominal pressure loss, internal cooling kPa 21.6 26.8 25.7 25.4 18.7 22.8 22.9 31.3 35.8 34.4
System pressure, available cooling kPa 144.4 133.2 128.3 123.6 124.3 115.2 101.1 119.7 92.2 106.6
Diaphragm expansion vessel, volume l 5.0 5.0 5.0 10.0 10.0 10.0 10.0 10.0 18.0 18.0
Diaphragm expansion vessel, pre-
pressure
kPa 150
Medium port, inlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium port, outlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium contents, pipelines l 5.6 5.8 6.0 8.4 8.6 8.9 9.4 9.6 15.6 15.9
Minimum medium volume, system l 80.0 100.0 120.0 155.0 115.0 125.0 150.0 130.0 155.0 115.0
Dimensions - height mm 1954 1954 1954 1954 1954 1954 1954 1954 1954 1954
Width mm 1123 1123 1123 1123 1123 1123 1123 1123 1123 1123
Depth mm 1955 1955 1955 3005 3005 3005 3005 3005 4255 4255
Weight kg 577.1 602.6 608.4 767.2 844.0 846.7 902.1 1011.6 1147.4 1352.9
Approx. operating weight kg 588.3 614.2 620.4 784.0 861.2 864.5 920.9 1030.8 1178.6 1384.7
Serial colour similar to RAL 9018
Serial number RAL 9018
1033...10.. 1033...11.. 1033...12.. 1033...13.. 1033...14.. 1033...15.. 1033...16.. 1033...17.. 1033...18.. 1033...19..
Reference number RAL 9018
1690405 1690505 1690605 1690755 1690855 1690955 1691105 1691305 1691505 1691755
1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration
2) Air inlet temperature TK 7°C, medium inlet 45°C, medium outlet 50°C, 0% glycol concentration
3) Distance 10 m in open air
4) Air inlet temperature TK 45°C, medium inlet 18°C, medium outlet 15°C, 0% glycol concentration
5) Only with the compressor crankcase heating as accessory
6) Only with the winter fan control set as accessory
7) Contains greenhouse gas according to Kyoto Agreement
8) Determined according to EN 14511
REMKO KWG
54
Series
KWG
400
SP
KWG
500
SP
KWG
600
SP
KWG
750
SP
KWG
850
SP
KWG
950
SP
KWG
1100
SP
KWG
1300
SP
KWG
1500
SP
KWG
1750
SP
Function
Air-cooled compact chiller with multi-stage power control and
circulation pump / storage tank for cooling
Nominal cooling capacity
1)
kW 39.5 49.7 58.4 75.9 84.5 93.3 112.6 129.4 151.8 173.5
Energy efficiency ratio for cooling
EER
8)
2.32 2.42 2.45 2.48 2.37 2.42 2.58 2.48 2.53 2.48
Return temperature operating range
Cooling
°C +10 to +18
Operating range, cooling °C +15 to +45
Operating range, cooling (expansion) °C +5 to +45
5)
/ -15 to +45
6)
Number of cooling circuits 1 2
Power gradation % 0/50/100
0/33/
66/100
0/31/
62/100
0/33/
66/100
0/22/50/
72/100
0/25/50/
75/100
0/17/33/50/
67/83/100
Refrigerant R 410A
7)
Max. refrigerant operating pressure kPa 4200
Refrigerant, basic amount per cooling
circuit
kg 9.8 12.0 11.2 12.9 13.7 14.1 20.5 2x12.9 2x12.1 2x17.1
Compressor, number/type 2/scroll 3/scroll 4/scroll 6/scroll
Number of condenser fans 1 2 3
Max. air volume flow rate m³/h 21800 21200 21200 44400 44400 44400 43400 42400 66000 62580
Sound pressure level
3)
dB(A) 50.7 50.7 51.0 53.9 54.0 54.3 54.3 54.3 55.7 55.8
Sound power level dB(A) 82.9 82.9 83.2 86.1 86.2 86.5 86.5 86.5 87.9 88.0
Voltage supply V/Hz 400/3~/50
Type of protection IP 24
Max. electrical power consumption
4)
kW 26.04 29.23 34.91 47.06 53.64 58.07 66.94 78.49 90.27 103.93
Max. electrical current consumption
4)
A 38.14 42.74 50.95 68.59 78.10 84.50 97.31 114.16 131.18 151.55
Electrical nominal power consumption,
cooling
1)
kW 17.01 20.51 23.81 30.59 35.59 38.49 43.70 52.23 59.94 70.04
Electrical nominal current consump-
tion, cooling
1)
A 26.30 31.63 36.65 47.01 54.62 59.04 66.95 80.06 91.78 107.74
Max. electrical starting current LRA A 112.80 131.10 142.20 172.50 166.40 166.40 201.20 188.70 231.80 235.20
Operating medium Max. 35% ethylene glycol; max. 35% propylene glycol
Operating limits of medium °C +4 to +18
Max. medium operating pressure kPa 600
Nominal volume flow rate, medium
cooling
m³/h 6.80 8.53 10.04 13.07 14.54 16.06 19.37 22.25 26.10 29.84
Minimum flow rate, medium m³/h 5.40 6.80 8.00 10.40 11.60 12.80 15.40 17.80 20.80 23.80
Maximum volume flow rate, medium m³/h 8.10 10.20 12.00 15.60 17.40 19.20 23.20 26.70 31.30 35.80
Max. nominal pump pressure kPa 166.0 160.0 154.0 149.0 143.0 138.0 124.0 151.0 128.0 141.0
Nominal pressure loss, internal cooling kPa 21.6 26.8 25.7 25.4 18.7 22.8 22.9 31.3 35.8 34.4
System pressure, available cooling kPa 144.4 133.2 128.3 123.6 124.3 115.2 101.1 119.7 102.2 106.6
Diaphragm expansion vessel, volume l 5.0 5.0 5.0 10.0 10.0 10.0 10.0 10.0 18.0 18.0
Diaphragm expansion vessel, pre-
pressure
kPa 150
Medium port, inlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium port, outlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium contents, pipelines l 5.6 5.8 6.0 8.4 8.6 8.9 9.4 9.6 15.6 15.9
Tank volume l 150.0 150.0 150.0 300.0 300.0 300.0 300.0 300.0 300.0 300.0
Dimensions - height mm 1954 1954 1954 1954 1954 1954 1954 1954 1954 1954
Width mm 1123 1123 1123 1123 1123 1123 1123 1123 1123 1123
Depth mm 1955 1955 1955 3005 3005 3005 3005 3005 4255 4255
Weight kg 613.1 638.6 644.4 817.2 894.0 896.7 952.1 1061.6 1196.4 1401.9
Approx. operating weight kg 828.9 855.0 861.4 1208.4 1285.8 1289.4 1350.3 1460.4 1625.2 1831.6
Serial colour similar to RAL 9018
Serial number RAL 9018
1033...20.. 1033...21.. 1033...22.. 1033...23.. 1033...24.. 1033...25.. 1033...26.. 1033...27.. 1033...28.. 1033...29..
Reference number RAL 9018
1690410 1690510 1690610 1690760 1690860 1690960 1691110 1691310 1691510 1691760
1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration
2) Air inlet temperature TK 7°C, medium inlet 45°C, medium outlet 50°C, 0% glycol concentration
3) Distance 10 m in open air
4) Air inlet temperature TK 45°C, medium inlet 18°C, medium outlet 15°C, 0% glycol concentration
5) Only with the compressor crankcase heating as accessory
6) Only with the winter fan control set as accessory
7) Contains greenhouse gas according to Kyoto Agreement
8) Determined according to EN 14511
55
Series
KWG
400
SLN
KWG
500
SLN
KWG
600
SLN
KWG
750
SLN
KWG
850
SLN
KWG
950
SLN
KWG
1100
SLN
KWG
1300
SLN
KWG
1500
SLN
KWG
1750
SLN
Function
Air-cooled compact chiller with multi-stage power control
in noise-reduced design for cooling
Nominal cooling capacity
1)
kW 38.7 47.8 59.0 73.0 85.4 92.8 109.6 130.8 146.6 160.8
Energy efficiency ratio for cooling
EER
8)
2.50 2.44 2.53 2.52 2.62 2.60 2.60 2.64 2.53 2.35
Return temperature operating range
Cooling
°C +10 to +18
Operating range, cooling °C +15 to +45
Operating range, cooling (expansion) °C +5 to +45
5)
/ -15 to +45
6)
Number of cooling circuits 1 2
Power gradation % 0/50/100
0/33/
66/100
0/31/
62/100
0/33/
66/100
0/22/50/
72/100
0/25/50/
75/100
0/17/33/50/
67/83/100
Refrigerant R 410A
7)
Max. refrigerant operating pressure kPa 4200
Refrigerant, basic amount per cooling
circuit
kg 9.8 11.8 12.8 13.0 16.4 19.1 25.6 2x16.2 2x19.0 2x19.7
Compressor, number/type 2/scroll 3/scroll 4/scroll 6/scroll
Number of condenser fans 1 2 3
Max. air volume flow rate m³/h 17800 16800 35000 35000 33600 33600 33400 49600 47600 47600
Sound pressure level
3)
dB(A) 45.0 45.0 45.4 48.2 49.0 49.0 49.0 51.0 51.0 52.0
Sound power level dB(A) 77.0 77.0 77.4 80.2 81.0 81.0 81.0 83.0 83.0 84.0
Voltage supply V/Hz 400/3~/50
Type of protection IP 24
Max. electrical power consumption
4)
kW 23.42 26.60 33.67 42.54 49.12 53.55 62.42 74.82 83.69 96.86
Max. electrical current consumption
4)
A 33.83 38.44 48.65 61.46 70.97 77.38 90.19 108.11 120.92 139.94
Electrical nominal power consumption,
cooling
1)
kW 15.50 19.61 23.31 28.92 32.62 35.72 42.13 49.63 57.83 68.34
Electrical nominal current consump-
tion, cooling
1)
A 23.58 29.83 35.46 43.99 49.62 54.34 64.08 75.49 87.97 103.96
Max. electrical starting current LRA A 112.80 131.10 142.20 172.50 166.40 166.40 201.20 188.70 231.80 235.20
Operating medium Max. 35% ethylene glycol; max. 35% propylene glycol
Operating limits of medium °C +4 to +18
Max. medium operating pressure kPa 600
Nominal volume flow rate, medium
cooling
m³/h 6.66 8.21 10.12 12.53 14.69 15.95 18.83 22.46 25.20 27.65
Minimum flow rate, medium m³/h 5.30 6.50 8.00 10.00 11.70 12.70 15.00 17.90 20.10 22.10
Maximum volume flow rate, medium m³/h 8.00 9.90 12.20 15.10 17.70 19.20 22.60 27.00 30.30 33.20
Nominal pressure loss, internal cooling kPa 20.2 25.0 25.7 24.8 18.2 22.4 22.5 32.9 35.3 33.9
Medium port, inlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium port, outlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium contents, pipelines l 5.6 5.8 8.2 8.4 8.6 8.9 9.4 15.2 15.6 15.9
Minimum medium volume, system l 80.0 95.0 120.0 145.0 115.0 125.0 150.0 130.0 145.0 110.0
Dimensions - height mm 1954 1954 1954 1954 1954 1954 1954 1954 1954 1954
Width mm 1123 1123 1123 1123 1123 1123 1123 1123 1123 1123
Depth mm 1955 1955 3005 3005 3005 3005 3005 4255 4255 4255
Weight kg 545.2 570.0 687.4 719.7 795.1 797.4 850.6 1066.0 1089.5 1293.5
Approx. operating weight kg 550.8 575.8 695.6 728.1 803.7 806.3 860.0 1081.2 1105.1 1309.4
Serial colour similar to RAL 9018
Serial number RAL 9018
1033...30.. 1033...31.. 1033...32.. 1033...33.. 1033...34.. 1033...35.. 1033...36.. 1033...37.. 1033...38.. 1033...39..
Reference number RAL 9018
1690415 1690515 1690615 1690765 1690865 1690965 1691115 1691315 1691515 1691765
1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration
2) Air inlet temperature TK 7°C, medium inlet 45°C, medium outlet 50°C, 0% glycol concentration
3) Distance 10 m in open air
4) Air inlet temperature TK 45°C, medium inlet 18°C, medium outlet 15°C, 0% glycol concentration
5) Only with the compressor crankcase heating as accessory
6) Only with the winter fan control set as accessory
7) Contains greenhouse gas according to Kyoto Agreement
8) Determined according to EN 14511
REMKO KWG
56
Series
KWG
400 P
SLN
KWG
500 P
SLN
KWG
600 P
SLN
KWG
750 P
SLN
KWG
850 P
SLN
KWG
950 P
SLN
KWG
1100 P
SLN
KWG
1300 P
SLN
KWG
1500 P
SLN
KWG
1750 P
SLN
Function
Air-cooled compact chiller with multi-stage power control and
circulation pump in noise-reduced design for cooling
Nominal cooling capacity
1)
kW 38.7 47.8 59.0 73.0 85.4 92.8 109.6 130.8 146.6 160.8
Energy efficiency ratio for cooling EER
8)
2.33 2.40 2.41 2.48 2.48 2.49 2.58 2.50 2.52 2.36
Return temperature operating range
Cooling
°C +10 to +18
Operating range, cooling °C +15 to +45
Operating range, cooling (expansion) °C +5 to +45
5)
/ -15 to +45
6)
Number of cooling circuits 1 2
Power gradation % 0/50/100
0/33/
66/100
0/31/
62/100
0/33/
66/100
0/22/50/
72/100
0/25/50/
75/100
0/17/33/50/
67/83/100
Refrigerant R 410A
7)
Max. refrigerant operating pressure kPa 4200
Refrigerant, basic amount per cooling
circuit
kg 9.8 11.8 12.8 13.0 16.4 19.1 25.6 2x16.2 2x19.0 2x19.7
Compressor, number/type 2/scroll 3/scroll 4/scroll 6/scroll
Number of condenser fans 1 2 3
Max. air volume flow rate m³/h 17800 16800 35000 35000 33600 33600 33400 49600 47600 47600
Sound pressure level
3)
dB(A) 45.3 45.3 45.7 48.5 49.3 49.3 49.3 51.3 51.3 52.3
Sound power level dB(A) 77.5 77.5 77.9 80.7 81.5 81.5 81.5 83.5 83.5 84.5
Voltage supply V/Hz 400/3~/50
Type of protection IP 24
Max. electrical power consumption
4)
kW 24.52 27.70 34.77 44.01 50.59 55.02 63.89 76.82 85.69 99.36
Max. electrical current consumption
4)
A 35.93 40.54 50.75 64.18 73.69 80.10 92.91 111.76 124.57 144.94
Electrical nominal power consumption,
cooling
1)
kW 16.60 19.91 24.51 29.39 34.39 37.29 42.50 52.33 58.13 68.24
Electr. nominal current consumption
Cooling
1)
A 25.68 31.93 37.56 46.71 52.34 57.06 66.80 79.14 91.62 108.96
Max. electr. starting current LRA A 112.80 131.10 142.20 172.50 166.40 166.40 201.20 188.70 231.80 235.20
Operating medium Max. 35% ethylene glycol; max. 35% propylene glycol
Operating limits of medium °C +4 to +18
Max. medium operating pressure kPa 600
Nominal volume flow rate, medium
cooling
m³/h 6.66 8.21 10.12 12.53 14.69 15.95 18.83 22.46 25.20 27.65
Minimum flow rate, medium m³/h 5.30 6.50 8.00 10.00 11.70 12.70 15.00 17.90 20.10 22.10
Maximum volume flow rate, medium m³/h 8.00 9.90 12.20 15.10 17.70 19.20 22.60 27.00 30.30 33.20
Max. nominal pump pressure kPa 167.0 161.0 155.0 150.0 144.0 139.0 125.0 152.0 134.0 158.0
Nominal pressure loss, internal cooling kPa 20.2 25.0 25.7 24.8 18.2 22.4 22.5 32.9 35.3 33.9
System pressure, available cooling kPa 146.8 136.0 129.3 125.2 125.8 116.6 102.5 119.1 98.7 124.1
Diaphragm expansion vessel, volume
l 5.0 5.0 5.0 10.0 10.0 10.0 10.0 10.0 18.0 18.0
Diaphragm expansion vessel, pre-pressure
kPa 150
Medium port, inlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium port, outlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium contents, pipelines l 5.6 5.8 8.2 8.4 8.6 8.9 9.4 15.2 15.6 15.9
Minimum medium volume, system l 80.0 95.0 120.0 145.0 115.0 125.0 150.0 130.0 145.0 110.0
Dimensions - height mm 1954 1954 1954 1954 1954 1954 1954 1954 1954 1954
Width mm 1123 1123 1123 1123 1123 1123 1123 1123 1123 1123
Depth mm 1955 1955 3005 3005 3005 3005 3005 4255 4255 4255
Weight kg 594.2 619.0 747.4 785.7 861.1 863.4 920.6 1112.0 1171.5 1375.5
Approx. operating weight kg 605.4 630.6 763.8 802.5 878.3 881.2 939.4 1142.4 1202.7 1407.3
Serial colour similar to RAL 9018
Serial number RAL 9018
1033...40.. 1033...41.. 1033...42.. 1033...43.. 1033...44.. 1033...45.. 1033...46.. 1033...47.. 1033...48.. 1033...49..
Reference number RAL 9018
1690420 1690520 1690620 1690770 1690870 1690970 1691120 1691320 1691520 1691770
1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration
2) Air inlet temperature TK 7°C, medium inlet 45°C, medium outlet 50°C, 0% glycol concentration
3) Distance 10 m in open air
4) Air inlet temperature TK 45°C, medium inlet 18°C, medium outlet 15°C, 0% glycol concentration
5) Only with the compressor crankcase heating as ac-
cessory
6) Only with the winter fan control set as accessory
7) Contains greenhouse gas according to Kyoto Agree-
ment
8) Determined according to EN 14511
57
Series
KWG
400 SP
SLN
KWG
500 SP
SLN
KWG
600 SP
SLN
KWG
750 SP
SLN
KWG
850 SP
SLN
KWG
950 SP
SLN
KWG
1100 SP
SLN
KWG
1300 SP
SLN
KWG
1500 SP
SLN
KWG
1750 SP
SLN
Function
Air-cooled compact chiller with multi-stage power control and
circulation pump / storage tank in noise-reduced design for cooling
Nominal cooling capacity
1)
kW 38.7 47.8 59.0 73.0 85.4 92.8 109.6 130.8 146.6 160.8
Energy efficiency ratio
for cooling EER
8)
2.33 2.40 2.41 2.48 2.48 2.49 2.58 2.50 2.52 2.36
Adjustment range
Return temperature Cooling
°C +10 to +18
Operating range, cooling °C +15 to +45
Operating range, cooling
(expansion)
°C +5 to +45
5)
/ -15 to +45
6)
Number of cooling circuits 1 2
Power gradation % 0/50/100
0/33/
66/100
0/31/
62/100
0/33/
66/100
0/22/50/
72/100
0/25/50/
75/100
0/17/33/50/
67/83/100
Refrigerant R 410A
7)
Max. refrigerant operating pressure kPa 4200
Basic amount of refrigerant
per cooling circuit
kg 9.8 11.8 12.8 13.0 16.4 19.1 25.6 2x16.2 2x19.0 2x19.7
Compressor, number/type 2/scroll 3/scroll 4/scroll 6/scroll
Number of condenser fans 1 2 3
Max. air volume flow rate m³/h 17800 16800 35000 35000 33600 33600 33400 49600 47600 47600
Sound pressure level
3)
dB(A) 45.3 45.3 45.7 48.5 49.3 49.3 49.3 51.3 51.3 52.3
Sound power level dB(A) 77.5 77.5 77.9 80.7 81.5 81.5 81.5 83.5 83.5 84.5
Voltage supply V/Hz 400/3~/50
Type of protection IP 24
Max. electr. nominal power
consumption
4)
kW 24.52 27.70 34.77 44.01 50.59 55.02 63.89 76.82 85.69 99.36
Max. electrical current consumption
4)
A 35.93 40.54 50.75 64.18 73.69 80.10 92.91 111.76 124.57 144.94
Electr. nominal power consumption
Cooling
1)
kW 16.60 19.91 24.51 29.39 34.39 37.29 42.50 52.33 58.13 68.24
Electr. nominal current consumption
Cooling
1)
A 25.68 31.93 37.56 46.71 52.34 57.06 66.80 79.14 91.62 108.96
Max. electrical starting current LRA A 112.80 131.10 142.20 172.50 166.40 166.40 201.20 188.70 231.80 235.20
Operating medium Max. 35% ethylene glycol; max. 35% propylene glycol
Operating limits of medium °C +4 to +18
Max. medium operating pressure kPa 600
Nominal volume flow rate,
medium cooling
m³/h 6.66 8.21 10.12 12.53 14.69 15.95 18.83 22.46 25.20 27.65
Minimum flow rate, medium m³/h 5.30 6.50 8.00 10.00 11.70 12.70 15.00 17.90 20.10 22.10
Maximum volume flow rate, medium m³/h 8.00 9.90 12.20 15.10 17.70 19.20 22.60 27.00 30.30 33.20
Max. nominal pump pressure kPa 167.0 161.0 155.0 150.0 144.0 139.0 125.0 152.0 134.0 158.0
Nominal pressure loss, internal cooling kPa 20.2 25.0 25.7 24.8 18.2 22.4 22.5 32.9 35.3 33.9
System pressure, available cooling kPa 146.8 136.0 129.3 125.2 125.8 116.6 102.5 119.1 98.7 124.1
Diaphragm expansion vessel, volume
l 5.0 5.0 5.0 10.0 10.0 10.0 10.0 10.0 18.0 18.0
Diaphragm expansion vessel, pre-pressure
kPa 150
Medium port, inlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium port, outlet Inch 1 1/2 1 1/2 1 1/2 2 2 2 2 2 1/2 2 1/2 2 1/2
Medium contents, pipelines l 5.6 5.8 6.0 8.4 8.6 8.9 9.4 9.6 15.6 15.9
Tank volume l 150.0 150.0 150.0 300.0 300.0 300.0 300.0 300.0 300.0 300.0
Dimensions - height mm 1954 1954 1954 1954 1954 1954 1954 1954 1954 1954
Width mm 1123 1123 1123 1123 1123 1123 1123 1123 1123 1123
Depth mm 1955 1955 3005 3005 3005 3005 3005 4255 4255 4255
Weight kg 630.2 655.0 772.4 835.7 911.1 913.4 970.6 1186.0 1220.5 1424.5
Approx. operating weight kg 791.4 816.6 938.8 1002.5 1078.3 1081.2 1139.4 1366.4 1401.7 1606.3
Serial colour similar to RAL 9018
Serial number RAL 9018
1033...50.. 1033...51.. 1033...52.. 1033...53.. 1033...54.. 1033...55.. 1033...56.. 1033...57.. 1033...58.. 1033...59..
Reference number RAL 9018
1690425 1690525 1690625 1690775 1690875 1690975 1691125 1691325 1691525 1691775
1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration
2) Air inlet temperature TK 7°C, medium inlet 45°C, medium outlet 50°C, 0% glycol concentration
3) Distance 10 m in open air
4) Air inlet temperature TK 45°C, medium inlet 18°C, medium outlet 15°C, 0% glycol concentration
5) Only with the compressor crankcase heating as accessory
6) Only with the winter fan control set as accessory
7) Contains greenhouse gas according to Kyoto Agreement
8) Determined according to EN 14511
REMKO KWG
58
Subject to technical changes, information supplied without liability!
Consulting
Through intensive training, we
ensure that the expert knowl-
edge of our consultants is always
up-to-date. This has given us the
reputation of being more than
just a good, reliable supplier
REMKO, a partner
who helps solve problems.
Sales
REMKO not only has an exten-
sive sales network in Germany
and abroad, but also unusually
highly qualified sales experts.
REMKO field employees are
more than just sales representa-
tives: they mainly provide our
customers with consulting serv-
ices in regard to air-conditioning
and heating technology.
Customer service
Our units operate precisely and
reliably. If a fault should occur,
REMKO Customer Service is
there to help you. Our extensive
network of experienced special-
ised dealers guarantees you a
fast and reliable service.
REMKO INTERNATIONAL
...and somewhere near you!
Take advantage of our experience and advice
Hotline
Air-conditioning and heat-
ing technology
+49 5232 606-0
Export
+49 5232 606-130
REMKO GmbH & Co. KG
Klima- und Wärmetechnik
Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
Telephone +49-5232-606-0
Fax +49-5232-606-260
E-mail info@remko.de
Internet www.remko.de
19

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