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Cooper & Hunter CH-S12FTXQ (WI-FI), Service Manual

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Cooper & Hunter CH-S12FTXQ (WI-FI) Service Manual Download Page 12

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 specification:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)

Cooling and heating model

Summary of Contents for CH-S12FTXQ (WI-FI)

Page 1: ...AS INVERTER Series MODEL SERVICE MANUAL Designed by Cooper Hunter International Corporation Oregon USA www cooperandhunter com For proper operation please read and keep this manual carefully CH S12FTX...

Page 2: ...1 Summary Part Technical Information Indoor Unit Outdoor Unit Remote Controller...

Page 3: ...Unit Model CH S12FTXQ Wi Fi Indoor Unit Product Code CB470N01100 Fan Type Cross flow Fan Diameter Length DXL mm 98X580 Cooling Speed SH H M L SL r min 1350 1200 1050 750 Heating Speed SH H M L SL r m...

Page 4: ...Unit m3 h 2200 Fan Type Axial flow Fan Diameter mm 438 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Disc...

Page 5: ...1 Indoor Unit Indoor Unit Model CH S18FTXQ Wi Fi Indoor Unit Product Code CB470N00800 Fan Type Cross flow Fan Diameter Length DXL mm 106X706 Cooling Speed SH H M L SL r min 1230 1130 1030 800 Heating...

Page 6: ...tdoor Unit m3 h 2200 Fan Type Axial flow Fan Diameter mm 438 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IPX4 Permissible Excessive Operating Pressure for th...

Page 7: ...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 Cooling Heating Cooling Heating 50 60 70 80 90 100 110...

Page 8: ...temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor frequency Hz Indoor Outdoor P MPa T1 o C T2 o C 27 19 35 24 12K 0 8 1 1 11 to 14 38 to 41 Super High High 72...

Page 9: ...urve 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 0 20 40 60 80 100...

Page 10: ...3 Outline Dimension Diagram 3 1 Indoor Unit Unit mm 104 685 181 140 190 38 55 55 38 90 150 54 168 5 462 159 5 55 55 54 W D H 12K 18K Models W H D 12K 790 275 200 18K 970 300 224...

Page 11: ...3 2 Outdoor Unit Unit mm 540 297 848 257 320 596 763...

Page 12: ...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 specificat...

Page 13: ...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 7 6 1625 7 03 6 1625 7 03 6 1625 57 5220 78 6...

Page 14: ...3 3 127 0RWRU DSSOLHV WR WKH LURQ VKHOO PRWRU JURXQG 75 2 1 02725 RQO These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 1 8 9 78 6 1625 57 57 5...

Page 15: ...e 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 co...

Page 16: ...ace of compressor wire WVU 8 Reactor 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...

Page 17: ...ed 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 po...

Page 18: ...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 start...

Page 19: ...ectronic 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 wrenc...

Page 20: ...m At least 15cm At least 15cm At least 250cm Space to the wall S p a c e t o t h e o b s t r u c t i o n Space to the floor Space to the obstruction Drainage pipe Space to the wall Space to the obstru...

Page 21: ...pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installation Note this flow is o...

Page 22: ...by a professional Please make sure it is always grounded effectively otherwise it may cause electric shock 2 The yellow green wire in air conditioner is grounding wire which cant be used for other pu...

Page 23: ...Fig 1 5 Connect the Pipe of Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut with hand 3 Adjust the torque force by referring to the follo...

Page 24: ...e and power cord for installation when binding them When binding to a certain degree separate the indoor power and then separate the drain hose As show in Fig 15 3 Bind them evenly 4 The liquid pipe a...

Page 25: ...wire clip connect the power connection wire and power cord to the wiring terminal according to the color fix them with screws As show in Fig 23 6 Neaten the Pipes 1 The pipes should be placed along t...

Page 26: ...peration is normal or not If the ambient temperature is lower than 16 the air conditioner cant start cooling 2 Leakage Detection 1 With leakage detector Check if there is leakage with leakage detector...

Page 27: ...ling and drying operation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop 1 Supply voltage is unstable 2 Supply voltage is too low and load is too hig...

Page 28: ...open short circuited F3 During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation Outdoor temperature sensor hasnt...

Page 29: ...higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel AP1 if its no...

Page 30: ...will stop while indoor fan will operate During heating operation the complete unit will stop Replace outdoor control panel AP1 30 Module high temperature protection P8 During cooling operation compre...

Page 31: ...g and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer to the malfunction analysis 36 Outdoor DC fan motor malfu...

Page 32: ...le 44 Malfunction of complete units current detection U5 During cooling and drying operation the compressor will stop while indoor fan will operate During heating operating the complete unit will stop...

Page 33: ...If malfunction occurs corresponding code will display and the unit will resume normal until protection or malfunction disappears...

Page 34: ...ent or too much refrigrant blockage of capillary and increase of suction temp improper running of compressor burning in or stuck of bearing damage of discharge valve malfunction of protector Processin...

Page 35: ...ion diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes Yes No No No...

Page 36: ...l terminal is firm Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened Tighten the screw reassemble th...

Page 37: ...Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model Appearance of the jumper cap Assemb...

Page 38: ...cross detectioncircuit of the mainboard isdefined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to normal Conclusion U8 is displayed due to power...

Page 39: ...ion eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the same model Replace the mainboard with the same model Yes Yes No 5 Malfunction of detect...

Page 40: ...oltage higher than 200V Malfunction of the outdoor mainboard AP1 Replace outdoor mainboard Measure the voltage input with AC voltmeter see fig 30 Voltage within 180VAC 260VAC Shut down the power and w...

Page 41: ...is heavy If radiating of unit is good Malfunction diagnosis process N N Y N Y Y Y N N N N N Y Y Y Y Y H5 H7 or P5 is displayed after turning on the unit Measure if the voltage input is within 180 265...

Page 42: ...played If the outdoor ambient temperature is higher than 53 Normal protection please use it after improving the outdoor ambient temperature Unit restarts normally Unit restarts normally If the radiati...

Page 43: ...d the high and low pressure of system is not balanced please start the unit after 3min If the compressor wire COMP UVW is well connected and connection sequence is correct Check the connection situati...

Page 44: ...eaked The compressor overload protection terminal is not connected well with the mainboard If the overload protector is damaged Heat exchange of unit is not good heat exchanger is dirty and unit radia...

Page 45: ...ce manual Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly Heat exchange of unit is not good heat exchanger is dirty and unit radiating environ...

Page 46: ...damaged Malfunction diagnosis process Y Y N N N N Y N N start If power plug is connected well with the socket Connect the plug correctly Check the connection wire between reactor mainboard and situat...

Page 47: ...t of indoor mainboard is damaged If the communication circuit of outdoor mainboard AP1 is damaged Malfunction diagnosis process Start If the unit operates normally before malfunction Check built in wi...

Page 48: ...ated Malfunction is eliminated Malfunction is eliminated Malfunction is eliminated Check motor and re install the motor to make it run normally Make compressor run normally Remove blockage in the syst...

Page 49: ...the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is abnormal Fan speed is t...

Page 50: ...ion of compressor Compressor cant operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Cant be Started Up 2 Poor Cooling Heating for...

Page 51: ...inside the outdoor unit Theres abnormal sound fro outdoor unit Remove foreign objects Adjust all parts position of outdoor unit tighten screws and stick damping plaster between connected parts Short...

Page 52: ...Designed by Cooper Hunter International Corporation Oregon USA www cooperandhunter com E mail info cooperandhunter com...

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