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Model No: AC-S24CK_S24HK
Version 1.0
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Model :
AC-S24CK
AC-S24HK
3
Model No: AC-S24CK_S24HK
Version 1.0
Content
Feature …………………………………..……………………………………………….. 4
Specifications ……………………………………………………………………………. 5
Operating range …………………………………………………………………………. 5
Remote control …………………………………………………………………………...7
Refrigeration cycle ………………………………………………………………………. 10
Operation details ……………………………………………………………………… 12
Installation ……………………………………………………………………………….. 22
2-way, 3-way valve ……………………………………………………………………… 33
Trouble shooting ……………………………………………………………………… 41
Exploded drawing …………………………………………………………………… …. 49
Part list …………………………………………………………………………………… 52
4
Model No: AC-S24CK_S24HK
Version 1.0
CHAPTER 1: FEATURES
MODE
DESCRIPTION
COOLING Cools, dehumidifies and filters the room air. Maintains desired room temperature.
HEATING Heats and filters the room air. Maintains desired room temperature.
SMART
Operates the appliance at COOLING, HEATING or DRY mode, maintaining desired
temperature dependent upon the room temperature.
DRY
Dehumidifies and softly cools the room air. This mode is advisable to be used when the
room temperature is rather cool but the humidity is rather high.
FAN ONLY Re-circulates and filters the room air. Maintains constant air movement in the room.
SLEEP
The SLEEP mode will be canceled after being set for 8 hours. The set temperature will
be increased 0.5
o
per hour during the first two hours in COOLING or DRY and
decreased 1
o
per hour in the first three hours in HEATING.
AUTO FAN
The appliance automatically selects the indoor fan speed in accordance to the room
temperature. At the start, the appliance operates at high fan speed. As the room
temperature gets closer to the set temperature, the fan switches to a lower speed for
quieter operation.
FAN SPEED
HIGH
MEDIUM
LOW
1. The appliance can set at different indoor fan motor speed by pressing the FAN
SPEED button on the remote controller.
2. When this symbol is being displayed on the LCD of the remote controller, the signal is
transmitting from the remote controller to the air conditioner.
TEMP. SET
UP
DOWN
Press DOWN button once, the set temperature is decreased by 1
o
.
Press UP button once, the set temperature is increased by 1
o
.
TIMER
Automatically switches the appliance ON at preset time intervals, ensuring a comfortable
environment before you return home, or switches OFF the appliance automatically
when
you sleep without wasting electricity.
Auto -restart
When the power supply restores after its failure, the machine will start to work
automatically with the previous setting parameters.
SUPER
Strong cooling when you just come into your room and wan
t to cool the room as soon as
possible.
5
Model No: AC-S24CK_S24HK
Version 1.0
CHAPTER 2: SPECIFICATIONS
(SEE APPENDIX A)
CHAPTER 3: OPERATING RANGE
1. TEMPERATURE RANGE FOR T1 CLIMATE AIR CONDITIONER
l The preset temperature of the appliance ranges from 18
o
C to 32
o
C.
l The ambient temperature of the cooling only air conditioner ranges from 18
o
C to
43
o
C.
l The ambient temperature of the heat pump ranges from –7
o
C to 43
o
C.
l The rated cooling operation test condition is as following.
Indoor DB/WB temperature: 27
o
C /19
o
C
outdoor DB/WB temperature: 35
o
C /24
o
C
l The rated heating operation test condition is as following.
l indoor DB/WB temperature: 20
o
C /Max.15
o
C
l outdoor DB/WB temperature: 7
o
C /6
o
C
2. TEMPERATURE RANGE FOR T3 CLIMATE AIR CONDITIONER
l The preset temperature of the appliance ranges from 18
o
C to 32
o
C .
l The ambient temperature of the cooling only air conditioner ranges from 21
o
C to
52
o
C.
l The rated cooling operation test condition is as following.
Indoor DB/WB temperature: 27
o
C /19
o
C
outdoor DB/WB temperature: 35
o
C /24
o
C
6
Model No: AC-S24CK_S24HK
Version 1.0
Indoor unit
Pipe length is
15 meters Max
Outdoor unit
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5
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Indoor unit
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5
m
Curled tube for
returning water
Outdoor unit
3. REFRIGERANT PIPING
l The maximum length of the connecting refrigerant piping between indoor unit
and outdoor unit is 15m and the maximum elevation difference between indoor
and outdoor units are 5m.
l If the refrigerant piping is longer than 7m,additional refrigerant charge 20g/m for
below 1/2 inch gas pipe and 30g/m for below 5/8 or 3/4 inch gas pipe is advis-
able.
l Outside diameter of the refrigerant piping is as following.
Models
OD of liquid pipe
(small pipe)
OD of gas pipe
(large pipe)
7K, 9K (COOLING ONLY & HEAT PUMP 6mm or 1/4 inch 10mm or 3/8 inch
12K, 18K,24K ( COOLING ONLY &
HEAT PUMP)
6mm or 1/4 inch 12mm or 1/2 inch
7
Model No: AC -S24CK_S24HK
Version 1.0
CHAPTER 4: REMOTE CONTROLLER
The remote controller transmits signals to the system.
1. ON/OFF BUTTON
l The appliance will be started when it is energized or will be stopped when it is in
operation, if you press this button.
2. MODE BUTTON
l Used to select the type of operation mode.
COOLING mode
9
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3
8
4
2
7
6
1
8
Model No: AC -S24CK_S24HK
Version 1.0
DRY mode
FAN ONLY mode
HEATING mode
3. FAN SPEED BUTTON
l Used to select the indoor fan motor speed.
Automatic fan speed
High fan speed
Medium fan speed
Low fan speed
4.TEMPERATURE SETTING BUTTON
l Used to adjust the preset room temperature.
l Used to adjust time in TIMER mode.
5. SWING BUTTON
l Press to adjust airflow direction.
6. SMART BUTTON
l Used to enter fuzzy logic operation directly, regardless of the unit is on or off.
7. TIMER SET/CANCEL BUTTON
l Used to set or cancel the timer operation.
8. SLEEP BUTTON
l Used to set or cancel SLEEP mode operation during COOLING, HEATING, DRY
or SMART mode operation.
9. SUPER BUTTON
l Used to start or stop the fast cooling.
(Fast cooling operates at high fan speed with 18
o
C setting temperature
automatically)
The indication symbols on LCD:
9
Model No: AC -S24CK_S24HK
Version 1.0
Indication symbols on LCD:
Signal transmit.
Smart indicator
Dry indicator
Fan only indicator
Sleep indicator
Heating indicator
Cooling indicator
Super indicator
High fan speed
Medium fan speed
Low fan speed
Auto fan speed
10
Model No: AC -S24CK_S24HK
Version 1.0
CHAPTER 5: REFRIGERATION CYCLE
1. Cooling only appliance
ÖÆÀäϵͳͼ
Indoor unit
evaporator
liquid side
gas side
3-way valve
Outdoor unit
accumulator
compressor
condenser
capillary
11
Model No: AC -S24CK_S24HK
Version 1.0
2. Heat pump
¼¼Êõ²ÎÊý:
Indoor unit
evaporator
liquid side
gas side
3-way valve
2-way valve
check valve
Outdoor unit
accumulator
compressor
condenser
reverse valve
capillary
heating cooling
defrost
Flow of refrigerant
12
Model No: AC -S24CK_S24HK
Version 1.0
CHAPTER 6: OPERATION DETAILS
1. SAFETY CONTROL
l 3 minutes delay for compressor
The compressor is ceased for 3 minutes to balance the pressure in the refrigeration
cycle in order to protect the compressor.
l 59 seconds delay for reversing valve
The 4-way reversing valve delay for 59 seconds to prevent the refrigerant abnormal
noise when the HEATING operation is OFF or switched to other operation modes.
l Over-current control
The compressor will be switched OFF when it is over-current for 5 seconds, and
when the current is normal and the compressor has been stopped for 3 minutes , the
compressor will be turned ON.
l Freeze preventive control
When the indoor pipe temperature falls below –1
o
C during COOLING or DRY
operation for 3 minutes, the compressor and outdoor fan motor turn OFF with buzzer
3 beeps . When the indoor pipe temperature recovers to 5
o
C and the compressor has
been stopped for 3 minutes, the compressor and outdoor fan motor will be turned
ON.
l Overheating protection system
When overloading occurs during the heating operation, this system controls the
outdoor fan motor and compressor according to the indoor pipe temperature to
prevent the overloading of the compressor and restrain the rise in high pressure.
When the indoor pipe temperature exceeds 53
o
C, the outdoor fan motor will be
turned OFF, and when the indoor pipe temperature falls below 49
o
C, the outdoor fan
motor recovers to ON. When the indoor pipe temperature exceeds 63
o
C, the
appliance will be turned OFF with 4 beeps of buzzer and cannot recover
automatically.
2

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