Cooper & Hunter CH-S12FTXQ (WI-FI) User manual

Split Air Conditioner
VERITAS INVERTER Series
M ODEL :
SERVICE MANUAL
Designed by Cooper&Hunter International Corporation, Oregon, USA
www.cooperandhunter.com
For proper operation, please read and keep this manual carefully.
CH-S 12 FT XQ (WI-FI)
CH-S 18 FT XQ (WI-FI)
EN

1. Summary
Part Ⅰ: Technical Information
Indoor Unit
Outdoor Unit
Remote Controller

Model CH-S12FTXQ (Wi-Fi)
Product Code CB470001101
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 3500
Heating Capacity(Min~Max) W 3600
Cooling Power Input(Min~Max) W 972
Heating Power Input(Min~Max) W 942
Cooling Current Input A 4.50
Heating Current Input A 4.4
Rated Input W 1500
Rated Cooling Current A 7.2
Rated Heating Current A 7.7
Air Flow Volume(SH/H/M/L/SL) m3/h 560/480/410/290/-
Dehumidifying Volume L/h 1.4
EER W/W 3.60
COP W/W 3.82
SEER 6.1
SCOP(Average) 4.6
SCOP(Warmer) 5.1
SCOP(Colder) 3.3
Application Area m215-22
Indoor
Unit
Indoor Unit Model CH-S12FTXQ (Wi-Fi)
Indoor Unit Product Code CB470N01100
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф98X580
Cooling Speed(SH/H/M/L/SL) r/min 1350/1200/1050/750/-
Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/850/-
Fan Motor Power Output W 20
Fan Motor RLA A 0.215
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф5
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length(LXDXW) mm 584X22.8X266.7
Swing Motor Model MP24AA
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 40/37/28/24/-
Sound Power Level(SH/H/M/L/SL) dB (A) 55/47/44/38/-
Dimension(WXHXD) mm 790X275X200
Dimension of Carton Box(LXWXH) mm 850X339X262
Dimension of Package(LXWXH) mm 852X355X273
Net Weight kg 9
Gross Weight kg 11
2. Specications
2.1 Specication Sheet

Outdoor
Unit
Model of Outdoor Unit CH-S12FTXQ (Wi-Fi)
Product Code of Outdoor Unit CB427W04701
Compressor Manufacturer/Trademark Zhuhai Landa Compressor Co.; Ltd.
Compressor Model QXA-B102zE190
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 35.00
Compressor RLA A 4.80
Compressor Power Input W 1020
Overload Protector /
Throttling Method Capillary
Operation temp oC 16~30
Ambient temp (cooling) oC -24~48
Ambient temp (heating) oC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7.94
Rows-n Gap mm 1-1.4
Coil Length (LXDXW) mm 731X19.05X550
Fan Motor Speed rpm 900
Output of Fan Motor W 30
Fan Motor RLA A 0.4
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 2200
Fan Type Axial-ow
Fan Diameter mm Ф438
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating
Pressure for the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 51/-/-
Sound Power Level (H/M/L) dB (A) 62/-/-
Dimension (WXHXD) mm 848X596X320
Dimension of Carton Box (LXWXH) mm 878X360X630
Dimension of Package (LXWXH) mm 881X363X645
Net Weight kg 29.5
Gross Weight kg 32.5
Refrigerant R410A
Refrigerant Charge kg 0.90
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф9.52
Max Distance Height m 10
Max Distance Length m 20
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice; please refer to the nameplate of the unit.

Model CH-S18FTXQ (Wi-Fi)
Product Code CB460003800
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W5000
Heating Capacity(Min~Max) W 5300
Cooling Power Input(Min~Max) W 1430
Heating Power Input(Min~Max) W 1380
Cooling Current Input A 6.34
Heating Current Input A 6.12
Rated Input W 1860
Rated Cooling Current A 8.25
Rated Heating Current A 7.45
Air Flow Volume(SH/H/M/L/SL) m3/h 850/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.50
COP W/W 3.84
SEER 6.1
SCOP(Average) 4.6
SCOP(Warmer) 5.1
SCOP(Colder) 3.3
Application Area m221-31
Indoor
Unit
Indoor Unit Model CH-S18FTXQ (Wi-Fi)
Indoor Unit Product Code CB470N00800
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф106X706
Cooling Speed(SH/H/M/L/SL) r/min 1230/1130/1030/800/-
Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/900/-
Fan Motor Power Output W/
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length(LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CJ
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 44/39/33/28/-
Sound Power Level(SH/H/M/L/SL) dB (A) 58/53/50/45/-
Dimension(WXHXD) mm 970X300X224
Dimension of Carton Box(LXWXH) mm 1038X380X305
Dimension of Package(LXWXH) mm 1041X383X320
Net Weight kg 13.5
Gross Weight kg 16.5

Outdoor
Unit
Model of Outdoor Unit CH-S18FTXQ (Wi-Fi)
Product Code of Outdoor Unit CB427W06400
Compressor Manufacturer/Trademark Zhuhai Landa Compressor Co.; Ltd.
Compressor Model QXA-B102zE190A
Compressor Oil FVC68D or RB68EP
Compressor Type Rotary
L.R.A. A 35.00
Compressor RLA A 4.80
Compressor Power Input W 1020
Overload Protector /
Throttling Method Capillary
Operation temp oC 16~30
Ambient temp (cooling) oC -24~48
Ambient temp (heating) oC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7
Rows-n Gap mm 1-1.4
Coil Length (LXDXW) mm 742X38.1X550
Fan Motor Speed rpm 900
Output of Fan Motor W 30
Fan Motor RLA A 0.4
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 2200
Fan Type Axial-ow
Fan Diameter mm Ф438
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating
Pressure for the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 54/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension (WXHXD) mm 848X596X320
Dimension of Carton Box (LXWXH) mm 878X360X630
Dimension of Package (LXWXH) mm 881X363X645
Net Weight kg 33
Gross Weight kg 36
Refrigerant R410A
Refrigerant Charge kg 1.1
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф9.52
Max Distance Height m 10
Max Distance Length m 20
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice; please refer to the nameplate of the unit.

2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100
120
110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Cooling Heating
Cooling Heating
50
60
70
80
90
100
110
120
130
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Capacity ratio(%)
Outdoor temp. (°C)
Capacity ratio(
%)
–15 –10 –5
110
100
90
80
70
60
50
40
0 5
710
Conditions
Indoor:DB20°C
Indoor air flow:Super High
Pipe length:5m
Outdoor temp.(°C)
Condition
Indoor:DB27°C WB19°C
Indoor air flow: High
Pipe length:5m
Heating operation ambient temperature range is -15ºC~24ºC

32 33 34 35 36 37 38 39 43
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length: 5m
Outdoor temp.(°C)
Capacity ratio (%)
Outdoor temp.(oC)
30
40
50
60
70
80
90
100
110
120
-22 -15 -10 -5 0 7 15 2
0 2
4
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Cooling
Heating
Heating operation ambient temperature range is -22ºC~24ºC
2.4 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(oC)
(DB/WB) Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed of
indoor unit
Fan speed of
outdoor unit
Compressor
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
27/19 35/24
12K 0.8 ~ 1.1 11 to 14 38 to 41
Super High High
72
18K 0.8 ~ 1.0 12 to 14 80 to 40 52
Rated heating
condition(oC)
(DB/WB) Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed of
indoor unit
Fan speed of
outdoor unit
Compressor
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
20/15 7/6
12K 2.8 ~ 3.2 38 to 41 2 to 5
Super High High
77
18K 2.2 ~2.4 70 to 40 1 to 5 65
Instruction:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5 m.
Cooling:
Heating:

2.5 Noise Curve
Indoor side noise
60
50
40
30
20
10
0
Indoor Fan Motor Rotating Speed
Noice/dB(A)
low Middle High Super High
Outdoor side noise
Compressor frequency/Hz
Noise/dB(A)
70
60
50
40
30
020 40 60 8
0 100
20
18K12K

3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
104 685 181
140
190
38
Φ55 Φ55
38
90
150
54
168.5 462 159.5
Φ55 Φ55
54
W
D
H
12K
18K
Models WH D
12K 790 275 200
18K 970 300 224

3.2 Outdoor Unit
Unit:m
m
540
297
848 257
320
596
763

Indoor unit Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer Capillary Strainer
Accumlator
Compressor
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)
Cooling and heating model

5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
●Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green CAP Jumper cap
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
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5.2 PCB Printed Diagram
Indoor Unit
● Top view
● Bottom view
1 Neutral wire terminal
2 Interface of health function neutral wire
3 Motor needle stand
4 Interface of health function live wire
5 Auto button
6 Up&down swing motor
7 Interface of up & down swing motor
8 WIFI
Fuse
9 Temperature sensor
10 Terminal for display board connection
11 Jump
12 Terminal with outdoor unit communication
wire
13
14
Live wire terminal
1 2 3 4 5 6 7
8
9
11
12
13
14
10

NO NAME
1
Interface of electronic expansion valve
2Overload interface of compressor
3 Terminal of DRED
4Interface of temperature sensor
5Main board of IC
6 Eeprom
7Interface of compressor wire WVU
8Reactor wiring terminal
9 DRED Live wire interface
10 Interface of electric heating
11 4-way valve terminal
12 DRED Interface of netural wire
13 Terminal of outdoor fan
14 Interface of earthing wire
15 Live wire interface
16 Neutral wire terminal
17 Communication wire
1
2
3
4
5
6
7
8
910 11
12
13
14
15
16
17
Outdoor Unit
● Top view
● Bottom view

1. Select the installation location according to the require-
ment of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 20kg.
3. When installing the indoor unit and outdoor unit, a suf-
cient xing bolt must be installed; make sure the installation
support is rm.
4. Ware safety belt if the height of working is above 2m.
5. Use equipped components or appointed components dur-
ing installation.
6. Make sure no foreign objects are left in the unit after n-
ishing installation.
Electrical Safety Precautions:
7. Notes for Installation and Maintenance
Safety Precautions:
Important!
Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation
and maintenance.
Please follow the instructions below.
●The installation or maintenance must accord with the
instructions.
●Comply with all national electrical codes and local
electrical codes.
●Pay attention to the warnings and cautions in this
manual.
●All installation and maintenance shall be performed by
distributor or qualied person.
●All electric work must be performed by a licensed
technician according to local regulations and the
instructions given in this manual.
●Be caution during installation and maintenance. Prohibit
incorrect operation to prevent electric shock, casualty and
other accidents.
1. Cut off the power supply of air conditioner before
checking and maintenance.
2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly
during installation and maintenance.
5. Have the unit adequately grounded. The grounding
wire cant be used for other purposes.
6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of
power supply must be corresponding to the live wire,
neutral wire and grounding wire of the air conditioner.
8. The power cord and power connection wires cant be
pressed by hard objects.
9. If power cord or connection wire is broken, it must be
replaced by a qualied person.
1. Avoid contact between refrigerant and re as it generates
poisonous gas; Prohibit prolong the connection pipe by
welding.
2. Apply specied refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when
installation is completed.
4. If there is refrigerant leakage, please take sufficient
measure to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
Warnings
Refrigerant Safety Precautions:
Improper installation may lead to re hazard, explosion,
electric shock or injury.
Installation Safety Precautions:
Part Ⅱ: Installation and Maintenance
10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.
11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
3mm.
12. Make sure all wires and pipes are connected properly and
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specication
if it is burnt down; dont replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid place, the circuit
breaker must be installed.

Warnings
Safety Precautions for Installing
and Relocating the Unit:
To ensure safety, please be mindful of the following precautions.
1. When installing or relocating the unit, be sure to keep
the refrigerant circuit free from air or substances other
than the specied refrigerant.
Any presence of air or other foreign substance in the re-
frigerant circuit will cause system pressure rise or com-
pressor rupture,resulting in injury.
2.When installing or moving this unit, do not charge the
refrigerant which is not comply with that on the nameplate
or unqualied refrigerant. Otherwise, it may cause abnor-
mal operation, wrong action, mechanical malfunction or
even series safety accident.
3.When refrigerant needs to be recovered during relocat-
ing or repairing the unit, be sure that the unit is running in
cooling mode.Then, fully close the valve at high pressure
side (liquid valve).About 30-40 seconds later, fully close
the valve at low pressure side (gas valve), immediately
stop the unit and disconnect power. Please note that the
time for refrigerant recovery should not exceed 1 minute.
If refrigerant recovery takes too much time, air may be
sucked in and cause pressure rise or compressor rupture,
resulting in injury.
4.During refrigerant recovery, make sure that liquid valve
and gas valve are fully closed and power is disconnected
before detaching the connection pipe. If compressor
starts running when stop valve is open and connection
pipe is not yet connected, air will be sucked in and cause
pressure rise or compressor rupture, resulting in injury.
5.When installing the unit, make sure that connection
pipe is securely connected before the compressor starts
running. If compressor starts running when stop valve is
open and connection pipe is not yet connected, air will be
sucked in and cause pressure rise or compressor rupture,
resulting in injury.
6.Prohibit installing the unit at the place where there may
be leaked corrosive gas or ammable gas. If there leaked
gas around the unit, it may cause explosion and other ac-
cidents.
7.Do not use extension cords for electrical connections. If
the electric wire is not long enough, please contact a local
service center authorized and ask for a proper electric
wire.
Poor connections may lead to electric shock or re.
8.Use the specied types of wires for electrical connec-
tions between the indoor and outdoor units. Firmly clamp
the
wires so that their terminals receive no external stresses.
Electric wires with insufcient capacity, wrong wire con-
nections and insecure wire terminals may cause electric
shock or re.

Main Tools for Installation and Maintenance
1. Level meter, measuring tape
4. Electroprobe
7. Electronic leakage detector
10. Pipe pliers, pipe cutter
2. Screw driver
5. Universal meter
8. Vacuum pump
11. Pipe expander, pipe bender
3. Impact drill, drill head, electric drill
6. Torque wrench, open-end wrench, inner
hexagon spanner
9. Pressure meter
12. Soldering appliance, refrigerant container

R410A

8. Installation
8.1 Installation Dimension Diagram
Space to the ceiling
Space to the wall
At least 15cm
At least 15cm
At least 15cm
At least 250cm
Space to the wall
Space to the obstruction
Space to the floor
Space to the obstruction
Drainage pipe
Space to the wall
Space to the obstruction
At least 300cm
At least 50cm
At least 200cm
At least 30cm
At least 30cm
At least 50cm