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1
Climatic Control H&C
User Guide
PPLIMW08157Ch
EN
wattswater.eu
GB
2
INSTALLATION AND OPERATION MANUAL
ClimaticControl-HC Heating & Cooling Controller
IMPORTANT!
Before starting work the installer should carefully read this Installation & Operation Manual, and make sure all
in- structions contained therein are understood and observed.
ClimaticControl-HC should be mounted, operated and maintained by specially trained personnel only. Personnel
in the course of training are only allowed to handle the product under the supervision of an experienced fitter.
Subject to observation of the above terms, the manufacture shall assume the liability for the equipment as
provided by legal stipulations.
All instructions in this Installation & Operation manual should be observed when working with the control. Any
other application shall not comply with the regulations. The manufacturer shall not be liable in case of
incompetent use of the control. Any modifications and amendments are not allowed for safety reasons.
ClimaticControl-HC mainte- nance may be performed by service shops approved by the manufacturer only.
The functionality of the control depends on the model and equipment. This installation leaflet is part of the product
and has to be obtained.
Subject to technical modification!
Table of content
1. Application ..................................................................................................................................................... 3
2. References, Symbols and Abbreviations ...................................................................................................... 3
3. Safety Instructions ......................................................................................................................................... 3
4. Display ........................................................................................................................................................... 4
5. Installation and Electrical connections .......................................................................................................... 4
5.1 ClimaticControl-HC Installation ..................................................................................................................... 4
5.2 Electrical connections.................................................................................................................................... 5
5.3 Hydraulic installation ..................................................................................................................................... 6
5.4 Room Temperature – Direct Plug In ............................................................................................................. 9
6. Types of operating modes / Program menu ................................................................................................ 14
6.1 Heating and cooling switch ......................................................................................................................... 14
There are several ways to switch the system between heating and cooling. .................................................................. 14
Use parameter #0 Type (See Chap 7.1) ..................................................................................................... 14
Use the user interface of the Climatic Control HC if parameter #0 Type=Rev (See Chap 7.1) .................. 14
Use the user interface of the paired MILUX-RF HYGROSTAT if parameter #0 Type=Rev ....................... 14
Use Input 1 parameter #11 In1=HC or Input 2 parameter #12 In2 =HC (See Chap 5.4.7 and Chap 7.1) . 14
6.2 Types of operating modes ........................................................................................................................... 14
6.3 Program Mode ............................................................................................................................................. 16
7 System Parameter Menu ............................................................................................................................ 18
7.1 System parameters setting ......................................................................................................................... 18
7.2 Heating & Cooling curves ............................................................................................................................ 24
7.3 Corresponding value for sensors. ............................................................................................................... 24
8.Technical Data / Materials ............................................................................................................................................. 24
9. TROUBLE-SHOOTING ............................................................................................................................... 25
GB
3
1. Application
ClimaticControl-HC is developed for variable flow temperature control in heating and cooling systems particular
in low-temperature installations like floor heating and cooling systems. The flow temperature is controlled de-
pending of the outside temperature following a curve.
Using the ClimaticControl-HC the operation of a water floor system can be adapted to the actual demands of the
system. In particular, the control can be used in apartments where users have their own individual living habits.
A room temperature thermostat can also be connected. The control has a 7-day programmer including 9 factory
set programs and 4 user defined programs.
The control is normally used in conjunction with a hydraulic control unit which includes circulation pumps, a two-
or three-way mixing valve and a valve actuator.
The ClimaticControl-HC has been designed for use in dry environments, e.g. in residential rooms, office spaces
and industrial facilities.
Verify that the installation complies with existing regulations before operation to ensure proper use of the instal-
lation.
2. References, Symbols and Abbreviations
For better understanding in this document references are used in the form of symbols and abbreviations, which are
described below.
Reference to further documents
FlH
Floor heating
Important information and application hints RaH Radiant heating (general)
Safety information or
Important information about functions
FRG Hydraulic control unit with pump and mixing
valve
OK-button (OK) HKV Manifold
Control button Left (◄) MuB Installation and operation manual
Control button Right (►) TB Temperature limiter
Plus button (+) UWP
Circulation pump
Minus button (-) WE Boiler / heat generator
3. Safety Instructions
Before starting work disconnect power supply!
All installation and wiring work on the ClimaticControl-HC must be carried out only when de-energized.
The appliance should be connected and commissioned by qualified personnel only. Make sure to ad-
here to valid safety regulations, in particular to VDE 0100 (German standard governing power installa-
tions of nominal voltages ≤ 1000 VAC).
The ClimaticControl-HC is neither splash, nor drip-proof. Therefore, they must be mounted at a dry place.
Do not interchange the connections of the sensors and the 230V connections under any circumstances! Inter-
changing these connections may result in life endangering electrical hazards or the destruction of the appliance and
the connected sensors and other appliances.
GB
4
4. Display
10
11
12
13
6
14
Dimensions
86 mm 47 mm
Fig.3
5. Installation and Electrical connections
5.1 ClimaticControl-HC Installation
The ClimaticControl-HC can be installed directly on a solid base (e.g. a wall). For this purpose the front panel of the
ClimaticControl-HC must be removed (fig. 4a) and the back section should be fastened using appropriate screws
and pins (these are not included in the scope of supply) (fig 4b) Fix the climatic control HC on a plane surface (wall…)
If the ClimaticControl-HC has been factory fitted with cables for connecting to a pump, valve drive, temperature
limiter, sensors etc., take care not to damage or crack the cables during the installation. Furthermore these cables
should not subjected to any tensile stress during installation. The cables will be fixed by means of the device for
strain relief at the ClimaticControl-HC.
If the ClimaticControl-HC is delivered together with a hydraulic control unit (for example FRG or FlowBox) and if it is
not attached to that unit by any installation plate or support, it should be installed next to that unit.
Pay attention to the correct connection of the cables if the ClimaticControl-HC is not installed directly on a hydraulic
control unit but at some other place for the reason of better access.
Refer to the directions about this in section 5.2 Electric connections.
Details Pos. 6
a
b
4
Fig.2
1:
Operating modes
2: Keyboard is locked
3: Service Installation Menu
4: Manual operation / program override active
(display of temperature offset)
5: a) display temperature (°C / °F)
b) display time (12 h / 24 h)
6: Type of temperature displayed
Water temperature
Outside temperature
Room temperature (if RF room thermostat con-
nected)
7: Program graphic of the current day
Comfort temperature
Reduced temperature
8: Pump indicator
9: Demand indication
Heating / Cooling / Humidity function
10: Current day of the week (1 = Monday; 7 = Sunday)
11: RF reception indicator (optional).
12: a) Symbol temperature indication in °C / °F
b) Symbol AM / PM if 12 h mode
13: a) Outside temperature (°C / °F)
b) Time (12 h / 24 h)
14: Mixing valve activity indicator
O
K
160, mm
GB
5
OK
Strain relief
Fig. 4b Fig. 4c
After making the electric connections, refit the front panel (fig. 4с).
5.2 Electrical connections
All electric connections must be made by an authorized specialist according to the local regulations on electric in-
stallations. The electrical cables must not come into contact with any hot components. Because of available
space, we recommend that you unsheath the cables just after the cable clamp to facilitate connection:
Power supply
230 VAC, 50 Hz
L
N
Circulateur P1
230 VAC 50 Hz
“Mixing circuit”
Return Water temperature.
(Option)
Outside Temperature
(if wired sensor)
(Possible RF Outdoor
sensor in option)
3-Point actuator
WATTS
EVO2
Cooling output
230VAC/50Hz
or
P2 Pump
230 VAC/50 Hz
‘’ Direct circuit ‘’
L
N
Fig
. 5a
Heating output
(Heating demand for the boiler)
Free contact
N
L
N
Option :
Optional connection – temperature limiter TB (option) for
pump1 only.
The connection is factory fitted with a cable bridge. It must be removed if
connecting TB.
Logical inputs
o2
o4
oIn2
oIn1
Logical features :
-> See 5.3 & 5.5
Fig. 5
Black
Brown
Closing
Blue
Blue
Comm
on
B
rown
Black
Opening
Supplied Water temperature
Cable
c
Retainer
M
M
Standard
installation
3 point actuator
installation according to
3-ways mixing valve
installation.
(See hydraulic modul or
EVO2 leaflet)
Closing
Comm.
Opening
ARA 600
O
COM
COM
F
F
O
Black
Brown
Blue
Blue
Brown
White
NR230
O
K
O
K
Fig. 4a
GB
6
M
5.3 Hydraulic installation
The configuration is defined by the System parameter #4: INST (See Chap 7.1 System parameters setting) and induces a
different usage of the ouputs:
5.3.1
Single circuit hydraulic installation: Parameter #4 INST=Act
Security Contact thermostat
Optionnal Return sensor (Used when no RF thermostat is installed)
Supply water sensor
Main pump
Mixing 3 way valve
Boiler control
1 2
M
3 way valve signal (On in cooling mode)
Parameter #4 INST=Act Heating Mode Cooling mode
Heating demand output driving the
boiler or Stage 2 heating (if PE=yes)
Active (Contact closed) when the pump
1 is active or when there is a domestic
hot water demand or PE=Yes with Ext
Temp < PE t
Always OFF (Contact opened)
Cooling demand output (Pump 2
output) driving a 3 way On/Off valve to
choose between Heating or cooling
water
Always OFF (Contact opened)-> HOT Always ON (Contact closed)->COLD
Pump 1 output with wired TH1
thermostat
Active if the thermostat is in heating
demand
Active if the thermostat is in cooling
demand
Pump 1 output with RF TH1 thermostat Active if the thermostat is in heating
demand
Active if the thermostat is in cooling
demand
Paramter #4 INST
Act
SEP
2P.1 or 2P.2
Output Directive valve Cooling demand Pump 2
Paramter #4 INST
Act
SEP
2P.1 or 2P.2
Output Heating demand
or Stage 2 heating (if
PE=yes)
Heating demand
or Stage 2 heating (if
PE=yes)
Heating or cooling demand
or Stage 2 heating (if
PE=yes)
Paramter #4 INST
Act
SEP
2P.1 or 2P.2
Output
Pump 1
Pump 1
Pump 1
Pump2/Cooling ouput :
Heating ouput :
Pump1 output :
GB
7
5.3.2
Single circuit hydraulic installation: Parameter #4=SEP
Security Contact thermostat
Optionnal Return sensor (Used when no RF thermostat is installed)
Supply water sensor
Main pump
Mixing 3 way valve
Boiler control Water chillers signal
Heating Mode
Cooling mode
Heating demand output driving the boiler or
Stage 2 heating (if PE=yes)
Active (Contact closed) when the pump 1 is
active or when there is a domestic hot water
demand or PE=Yes with Ext Temp < PE t
Always OFF (Contact opened)
Cooling demand output driving a water chiller
Always OFF (Contact opened) Active (Contact closed) when the pump 1 is
active
Pump 1 output with wired TH1 thermostat
Active if the thermost
at is in heating demand
Active if the thermostat is in cooling demand
Pump 1 output with RF TH1 thermostat
Active if the thermostat is in heating demand
Active if the thermostat is in cooling demand
5.3.3
Dual circuit hydraulic installation: Parameter #4=2P.1 or 2P.2 with wired thermostat:
(*)
2P.1 with wired thermostats: Thermostat 2 for direct circuit is a non-reversible model (Contact when ambient temperature is below
setpoint). In cooling mode, the climatic control will automatically reverse the contact information.
2P.2 with wired thermostats: Thermostat 2 for direct circuit must be a reversible model (Contact when heat or cool demand).
2P.1 or 2P.2
with wired thermostat
Heating Mode
Cooling mode
Heating or cooling demand output informing the
heat pump or Stage 2 heating (if PE=yes)
Active (Contact closed) when the pump 1 or
pump 2 is active for heating circuits (IN1=TH1,
IN2=TH2) or PE=Yes with Ext Temp < PE t
Active (Contact closed) when the pump 1 or
pump 2 is active for cooling circuits (IN1=TH1,
IN2=TH2) or PE=Yes with Ext Temp < PE t
Pump 2 output
Active (Contact closed) if heat demand on direct
radiator circuit thermostat 2
Active (Contact closed) if cold demand on direct
radiator circuit thermostat 2 (*)
Pump 1 output Active if the wired thermostat 1 is in heating
demand
Active if the wired thermostat 1 is in cooling
demand
Security Contact thermostat
HeatPump
signal
Aquastat
Pannel heater
pump 2
Supply water sensor
WFH Main pump1
Mixing 3 way valve
1
2
HP
GB
8
M
5.3.4
Dual circuit hydraulic installation: Parameter #4=2P.1 or 2P.2 with RF thermostat:
2P.1 or 2P.2 with RF thermostats have the same behavior: In cooling mode, the climatic control will automatically reverse the
cooling demand if the thermostat 2 is not reversible
2P.1 or 2P.2 with RF thermostat Heating Mode Cooling mode
Heating or cooling demand output
informing the heat pump or Stage 2
heating (if PE=yes)
Active (Contact closed) when the pump
1 or pump 2 is active for heating
circuits
OR when there is a domestic hot water
demand through Aquastat input (IN1 or
IN2)
OR PE=Yes with Ext Temp < PE t
Active (Contact closed) when the pump
1 or pump 2 is active for cooling circuits
OR PE=Yes with Ext Temp < PE t
Pump 2 output
Active (Contact closed) if heat demand
on direct radiator circuit RF thermostat
2
Active (Contact closed) if cold demand
on direct radiator circuit RF thermostat
2
Pump 1 output Active if the RF thermostat 1 is in
heating demand and Ambiant
temperature is lower than Setpoint
+1°C
Active if the RF thermostat 1 is in
cooling demand and Ambiant
temperature is higher than Setpoint -
1°C
-
Security Contact thermostat
HeatPump
signal
Aquastat
Pannel heater
pump 2
Supply water sensor
WFH Main pump1
Mixing 3 way valve
HP ST
GB
9
4 4 2 1
L
TH Output
5.4 Room Temperature – Direct Plug In
As an option you can plug in a room thermostat to the ClimaticControl-HC. Direct plug in of a room thermostat op-
timizes the operational time of the circulation pump and even the supply flow temperature depending on the condi-
tions in the main room.
5.4.1
Mixed circuit (Water Floor), standard room thermostat, wired type
If a wired type of a standard room thermostat is plugged in and the preset room temperature is reached in
the room, the under floor circulation pump switches off after pump delay time. (PUMP: System parame-
ters: pump delay time)
WFHT-BASIC WFHT-LCD MILUX xxx
5.4.2
Direct circuit (Panel Heater), standard room thermostat, wired type
If a second circulation pump is installed and managed by the ClimaticControl-HC (Inst: System param-
eters: installation type, “2P.x”), you can install a second wired room thermostat to manage the working of
the high temperature pump.
This pump will work in the following way: If the preset room temerature is reached in the room the High
water temperature circulation pump switches off after pump delay time. (PUMP: System parameters:
pump delay time)
WFHT-BASIC WFHT-LCD MILUX xxx
< °C
Fig. 6
< °C
Fig. 7
In1 In2
4 2
In1 In2
4 2
In1 In2
4 2
4 4 2 1
TH Output
In1 In2
4 2
GB
10
5.4.3
Wireless room thermostat (Water Floor thermostat “trF1”) with WFHT-RF (BASIC, LCD or
MILUX)
WFHT-RF BASIC WFHT-RF LCD MILUX-RF-xxx MILUX-RF-Hygrostat
Only RF thermostats from the WFHT-RF series or the MILUX-RF series can
be used with an active antenna 433,92.
The MILUX-RF Hygrostat can be used only with the 433,92Mhz frequency
RF thermostat initialization to the Controller:
SYSTEM PARAMETERS MENU, section
RADIO-CONFIGURATION with RF room thermostat
fig.8
If a radio frequency room thermostat is plugged in, the flow temperature calculated on the basis of outdoor
temperature and the curve (= flow temperature preset value) is optimized depending on the main room tempera-
ture.
The offset value is calculated in the following way:
Adjustment = preset value of supplied temperature + (room temperature - actual value) х compen-
sation offset
(Compensation offset: System parameters: “tr1o” Flow temperature offset for “trF1”)
Example 1: preset calculated value of flow temp. = 35 °C; room temperature: preset value = 21 °C,
actual value = 19 °C; offset (tr1o) = 1,5
Estimation 1: 35 °C + (21 °C – 19 °C) × 1,5K =>> flow temperature increased by 3,0K to 38 °C
Example 2: preset value of flow temperature = 35 °C; room temperature: preset value = 21 °C,
actual value = 22 °C; offset (tr1o) = 1,5
Estimation 2: 35 °C + (21 °C – 22 °C) × 1,5K =>> flow temperature decreased by 1,5K to 33,5 °C
The pump will be switched off when room temperature will be 1°C upper the setting temperature
of the thermostat.
If a Milux-RF-Hygrostat is used, the program feature (See Chapter Error! Reference source not found.) is deported on the
thermostat user interface.
5.4.4
Wireless room Hygrostat (Water Floor thermostat “trF1”)
If a radio frequency room Hygrostat is plugged in, the flow temperature calculated on the basis of outdoor
temperature and the curve (= flow temperature preset value) is optimized depending on the main room
temperature. (See the previous part for more explanation)
The working mode (Heating or Cooling) of the installation could be managed by the end user directly on
the room hygrostat. (See the MILUX humidity leaflet for more explanation)
The residual humidity will be supervised by the MILUX-RF hygrostat in the house. If humidity is detected
the “Wcal“ temperature will be increased by step of 0.1°C/minute to avoid a too cold water on the hydraulic
circuit and risk of condensation in the house.
5.4.5
Wireless RF room thermostat (High temperature circuit thermostat “trF2”)
If a second circulation pump is installed and managed by the ClimaticControl-HC (Inst: System param-
eters: installation type, 2P.x), you can install a second radio frequency room thermostat to supervise the
working of the high temperature pump.
This pump will work in the following way: If the preset room temerature is reached the High water
temperature circulation pump switches off after pump delay time. (PUMP: System parameters: pump
delay time)
Note: Only a standard room thermostat could be installed on the second circuit.
Ex: WFHT-RF (BASIC, LCD or MILUX).
AUTOMATIC mode of operation
Automatic mode of operation using the built-in or user programs.
The ClimaticControl-HC is controlled according to the selected built-in or user program ( 6.2.).
The flow temperature is controlled depending on the outdoor temperature and the curve with room com-
pensation if RF thermostat is installed. ( 5.3.3 – 5.3.5).
The room compensation function will be different depending of the RF thermostat installed:
* With WFHTRF-BASIC or LCD (Non programmable thermostat)
The room temperature compensation will be taken in account only during Comfort period of the pro-
gram. During the Reduced period the Water temperature will follow the curve minus the temperature
setback offset.
*
With
MILUX RF (Programmable
thermostat)
The room temperature compensation will be taken in account during Comfort and Reduced period
of the program. In this case the program of the MILUX RF should be the same of the water program ad-
justed on the CC-HC to have the best optimising energy consumption (the water temperature will be re-
duced due to the CC-HC program (in ) and by the setting temperature reduced also in the room due to
the MILUX RF program.
*
With MILUX-RF HYGROSTAT (Programmable Heat and Cool thermostat with Humidity supervising)
The program will be now done on the MILUX-RF HYGROSTAT (Program made on Zone1 see the user
guide of the MILUX-RF HYGROSTAT for more explanation).
The room temperature compensation will be taken in account during Comfort and Reduced period
of the MILUX-RF HYGROSTAT program.
The Comfort and Reduced manual offsets added or subtracted to the calculated water temperature will be
always adjusted on the both working mode of the CC-HC ( 0.00°C & -10.0°C by default).
For the operation of the circulation pump please refer to the section of COMFORT mode of operation.
REDUCED TEMPERATURE mode of operation
Unlimited operation in REDUCED TEMPERATURE mode .
This is a constant mode of operation of the system. The ClimaticControl-HC adjusts the flow temperature
continuously on the basis of outdoor temperature and the selected curve and substracting the value of
temperature setback (factory setting -10.0 К in Heating mode & +3.0 К in Cooling mode).
The display indicates the current flow temperature at 5 and the outside temperature at 13. By pressing the
button (OK) the preset value for the supply flow temperature reduced by the setback in temperature is
displayed at 5 for 3 seconds. Simultaneously the reducing difference appears in 13 (without deviation =
-10.0). It can be changed by the buttons (+) or (-).
For the operation of the circulation pump please refer to the section of COMFORT mode of operation.
See the previous part for more explanation concerning the room compensation function when RF
thermostat is installed.
ABSENCE/VACATION mode of operation
Time-limited operation of REDUCED TEMPERTURE mode .
Duration can be set between 1 and 24 hours and up to a maximum of 44 days. When this period is ex-
pired the ClimaticControl-HC switches back to operating mode .
By means of the arrow keys (◄) the cursor is first moved to . Then appears on the display at 13.
The duration of absence can be changed using buttons (+) or (-).
Example:
= 1 hour; = 1 day
Both symbols and start blinking. The remaining time is displayed at 13.
To discontinue this mode of operation before time you have to set the remaining time at 13 to using
the
(
-
)
key.
15

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