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For proper operation, please read and keep this manual carefully.
Designed by Cooper&Hunter International Corporation, Oregon, USA
SERVICE MANUAL
Heat Pump Air To Air
Split Air Conditioner
ICY II
M ODELS :
www.cooperandhunter.com
Series
CH-S09FTXTB2S-W
CH-S 12 FTXTB2S-W
CH-S 18 FTXTB2S-W
CH-S 24 FTXTB2S-W
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Table of Contents
Troubleshooting
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Summary of Contents for Cooper & Hunter CH-S09FTXTB2S-W
- Page 1 Heat Pump Air To Air Split Air Conditioner ICY II Series M ODELS : CH-S09FTXTB2S-W CH-S 12 FTXTB2S-W CH-S 18 FTXTB2S-W CH-S 24 FTXTB2S-W For proper operation, please read and keep this manual carefully. Designed by Cooper&Hunter International Corporation, Oregon, USA...
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Page 2: Table Of Contents
Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 ........................1 1. Summary 2. Specifications ......................2 2.1 Specification Sheet ......................2 2.2 Operation Characteristic Curve ..................4 2.3 Capacity Variation Ratio According to Temperature ............4 2.4 Noise Curve ........................5 2.5 Cooling and Heating Data Sheet in Rated Frequency .............5 . -
Page 3: Table Of Contents
Service Manual ......................58 9. Maintenance 9.1 Troubleshooting for Normal Malfunction .................58 9.2 Error Code List .......................62 9.3 Troubleshooting for Main Malfunction ................67 10. Exploded View and Parts List ..............80 10.1 Indoor Unit ........................80 10.2 Outdoor Unit .........................82 . -
Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: Outdoor Unit: Remote Controller: Technical Information... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet CH-S09FTXTB2S-W Model Product Code CB412003303 Rated Voltage 220-240 Power Rated Frequency 50/60 Supply Phases Power Supply Mode Outdoor Cooling Capacity 2600 Heating Capacity 3000 Cooling Power Input Heating Power Input Cooling Current Input... - Page 6 Service Manual Outdoor Unit Model CH-S09FTXTB2S-W Outdoor Unit Product Code CB148W08400 Compressor Manufacturer ZHUHAI GREE DAIKIN DEVICE CO., LTD 1GDY23AXD Compressor Model Compressor Oil FVC50K Compressor Type Rotary Compressor LRA. 16.5 Compressor RLA Compressor Power Input Compressor Overload Protector HPC 115/95...
- Page 7 Service Manual Value Parameter Unit Model CH-S12FTXTB2S-W Product Code CB412002903 Rated Voltage 220-240 Power Rated Frequency 50/60 Supply Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) 3500(1150~4000) Heating Capacity(Min~Max) 3650(2000-5300) Cooling Power Input(Min~Max) 8100(215~1300) Heating Power Input(Min~Max) 790(390~1900) Cooling Current Input 4.00 Heating Current Input 4.00...
- Page 8 Service Manual Outdoor Unit Model CH-S12FTXTB2S-W Outdoor Unit Product Code CB412W02901 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD QXAT-B096zE070 Compressor Model Compressor Oil 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) 40.00 Compressor Rated Load Amp (RLA) 5.40 Compressor Power Input 1130 Compressor Overload Protector 1NT11L-6233...
- Page 9 Service Manual CH-S18FTXTB2S-W CH-S24FTXTB2S-W Model Product Code CB412003202 CB412003101 V ～ Rated Voltage 220-240 220-240 Power Supply Rated Frequency 50/60 50/60 Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 5275 7000 Heating Capacity 5450 7000 Cooling Power Input 1920 1320 Heating Power Input 1790 1200...
- Page 10 Service Manual Model of Outdoor Unit CH-S18FTXTB2S-W CH-S24FTXTB2S-W Outdoor Unit Product Code CB412W03200 CB412W03100 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO.,LTD CO,LTD. QXAT-B121zF070 QXAT-D20zF030 Compressor Model Compressor Oil 68EP RB68EP Compressor Type Rotary Rotary L.R.A. Compressor RLA 11.3 Compressor Power Input 1430 2476...
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Page 11: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve Cooling Heating Condition Condition Indoor:DB27°C WB19°C Indoor:DB20°C WB15°C Indoor air flow: Super High Indoor air flow:Super High Pipe length: 5m Pipe length: 5m Cooling Heating Compressor speed (rps) Compressor speed (rps) Condition Condition Indoor:DB20°C WB15°C Indoor:DB27°C WB19°C Indoor air flow:Super High Cooling... -
Page 12: Capacity Variation Ratio According To Temperature
Service Manual 2.3 Capacity Variation Ratio According to Temperature Outdoor temp.(°C) Outdoor temp.(°C) Cooling Heating Condition Indoor:DB27°C WB19°C Indoor:DB20°C WB15°C Indoor air flow: Super High Indoor air flow:Super High Pipe length: 5m Pipe length: 5m -20 -18 Outdoor temp.(°C) Outdoor temp.(°C) 12 K , 18К, 24К... -
Page 13: Noise Curve
Service Manual 2.4 Noise Curve Outdoor side noise Indoor side noise Indoor fan motor rotating speed (rps) Compressor speed (rps) 12 K Indoor Unit Outdoor Unit Super High Middle Middle Middle Quiet High High Compressor speed (rps) Indoor fan motor rotating speed (rps) 18 K , 24К... -
Page 14: Cooling And Heating Data Sheet In Rated Frequency
Service Manual 2.5 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling temperature of heat Compressor condition(°C) connecting indoor and Fan speed of Fan speed of revolution Model outdoor unit exchanger indoor unit outdoor unit... -
Page 15: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ50 Φ50 Model Unit:mm Technical Information... - Page 16 Service Manual 2.5 Cooling and Heating Data Sheet in Rated Frequency Φ55 Φ55 Unit:mm Model Technical Information...
- Page 17 Service Manual Φ70 Φ70 Φ70 Φ70 Unit:mm Model 1018 1178 Technical Information...
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Page 18: Outdoor Unit
Service Manual 3.2 Outdoor Unit CH-S09FTXTB2S-W Unit:mm CH-S12FTXTB2S-W Unit:mm Technical Information... - Page 19 Service Manual CH-S18FTXTB2S-W Unit:mm CH-S24FTXTB2S-W 1000 Unit:mm Technical Information...
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Page 20: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Strainer expansion valve COOLING HEATING 12K, 18К, 24К INDOOR UNIT OUTDOOR UNIT GAS SIDE... -
Page 21: Electrical Part
Service Manual 5. Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Jumper cap Green Yellow Brown COMP Compressor Blue Grounding wire Black YEGN Yellow/Green Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●... - Page 22 Service Manual 12К 6361268408 18К, 24К 6361000023204 Technical Information...
- Page 23 Service Manual ● Outdoor Unit 09К 63610000299 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. 12К Please don't touch any terminal when the machine is running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock !
- Page 24 Service Manual 18К, 24К Please don't touch any terminal when the machine is running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock ! VA AC-L2 NOTE: Motor ground only applies to the 63610000231 iron shell motor.
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Page 25: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor unit ● Top view 1 Grounding wire Interface of health function live wire Interface of health function neutral wire 4 Neutral wire 5 Interface of DC motor Interface of electrostatuc dedusting 7 Auto button 8 Up&down swing interface 1 9 eft&right swing interface 10 Up&down swing interface 2... - Page 26 Service Manual Outdoor unit 09К ● Top view Neutral wire of electric High pressure protection 9 Earthing wire 1 Interface of reactor heater for compressor terminal HPP Neutral wire of electric Power supply neutral Interface of electronic 14 Temp. sensor expansion valver heater for chassis wire...
- Page 27 Service Manual ● Top view 14 15 ● Bottom view Technical Information...
- Page 28 Service Manual 18К, 24К ● Top view Terminal of compressor wire Terminal of low pressure protection Terminal of compressor overload protection Te r m i n a l o f o u t d o o r temperature sensor Terminal of outdoor fan Terminal of 4-way valve Communication wire with indoor unit...
- Page 29 Service Manual Buttons on Remote Controller ON/OFF button FAN button MODE button +/- button TURBO button button button CLOCK button TIMER ON/ TIMER OFF button TEMP button button (before opening cover) (after opening cover) I FEEL button ON/OFF button LIGHT button FAN button X-FAN button QUIET button...
- Page 30 Service Manual 2. FAN button Press this button, Auto, Low, Medium-low, Medium, Medium-high, High speed can be circularly selected. After powered on, Auto fan speed is default. Under DRY mode, Low fan speed only can be set up. ATUO Note: It’s Low fan speed under Dry mode.
- Page 31 TIMER ON. 10. TEMP button Press this button,the following temperature can be setted circularly: the setting temperature, indoor ambient temperature and outdoor ,displaying the indoor ambient temperature. is the outdoor ambient temperature. 3s laterit will return to the setting temprature or it depends on the other received signal within3s.
- Page 32 the place of setting temperature "88" will display the corresponding temperature of last setting sleep curve and blink; control will resume the original timer display;temperature display will resume to original setting temperature. ●Sleep3- the sleep curve setting under Sleep mode by DIY could be inquired: The user could accord to sleep curve setting method to inquire the presetting sleep curve, enter into user individuation sleep setting status, Note: In the above presetting or enquiry procedure, if continuously within10s, there is no button pressed, the sleep curve setting status will be automatically quit and resume to display the original displaying.
- Page 33 Operation Guide 1. General operation (1)After powered on, press ON/OFF button, the unit will start to run. (Note: When it is powered on, the guide louver of main unit will close automatically.) (2)Press MODE button, select desired running mode. (3)Pressing + or - button, to set the desired temperature (It is unnecessary to set the temp. at AUTO mode.) (4)Pressing FAN button, set fan speed, can select AUTO FAN,LOW, MEDIUM-LOW, MEDIUM, MEDIUM- HIGH and HIGH.
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Page 34: Brief Description Of Modes And Functions
Service Manual 6.4 Brief Description of Modes and Functions ● Indoor Unit 1.Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) 2.Basic functions (The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them Tf=TcX1.8+32.) Once the compressor is energized, there should be a minimum interval of 3 minutes between two start-ups. - Page 35 Service Manual Stop heating preset Original operating status preset Start heating 6min. 3min. 6min. Compressor Outdoor fan <2 min. Indoor fan <2 min. preset preset wind wind Reversing valve Stop ② Defrosting and Oil Return When receiving the signal of defrosting and oil return, the horizontal louver(big one) will rotate to the position where the angle is minimum and the other horizontal louver(small one) will close.
- Page 36 Service Manual ③ In this mode, TURBO can’t be set and fan speed can’t be adjusted. ④ In this mode, when compressor operates, fan speed will be adjusted as follows; when compressor stops operation, indoor unit will operate at blowing residual heat. When Tindoor amb.
- Page 37 Service Manual Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep. (4)Sleep Function Cooling mode、Dry mode: Basing on the set temperature of remote controller, after turning on the sleep function for a few hours, set temperature will increase properly and automatically according to human body’s comfort.
- Page 38 Service Manual swing function is set and indoor fan is operating. Note: a. If the position is set between O and D1, A 1and C1 or B1 and D1 by remote controller, the horizontal louver will swing between O and D1. b.
- Page 39 Service Manual will be displayed; if jumper cap has malfunction, “C5” will be displayed. (11)Memory Function ① Memory when power failure upon turning on the unit ◆ Memory content: ON status, mode, up&down swing, light, set temperature, set fan speed, general timer, Fahrenheit/ Centigrade ◆...
- Page 40 Service Manual ● Outdoor Unit 1. Compensation function of input parameters According to the structure of wall-mounting unit, considering the comfortability for operation, indoor ambient temperature when the compressor is at OFF status is higher than set temperature under heating mode. 2.
- Page 41 Service Manual operation due to freeze protection. If T ≥T and the compressor has stopped for 3min, the complete unit can inner tube temperature of freeze protection resume operation. 11.3 If the unit is stopped because of freeze protection for 6 times successively, it can’t resume operation automatically and the malfunction will be displayed continuously, which can only be resumed by pressing ON/OFF button.
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Page 42: Part Ⅱ : Installation And Maintenance
Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself. -
Page 43: Installation
Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8. -
Page 44: Installation Dimension Diagram
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance... -
Page 45: Installation Procedures
Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting frame, drill wall holes (select it according to the actual situation) Connect pipes of indoor Fix outdoor unit... -
Page 46: Installation Parts-Checking
Service Manual 8.2 Installation Parts-checking 8.4 Electric Connection Requirement Name Name 1. Safety Precaution Indoor unit Sealing gum (1) Must follow the electric safety regulations when installing Outdoor unit Wrapping tape the unit. Support of outdoor (2) According to the local safety regulations, use qualified Connection pipe unit power supply circuit and air switch. - Page 47 Service Manual (3) Fix the wall-mounting frame on the wall with tapping screws 5. Connect the Pipe of Indoor Unit (ST4.2X25TA) and then check if the frame is firmly installed by (1) Aim the pipe joint at the corresponding bellmouth.(As show pulling the frame.
- Page 48 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them.
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Page 49: Installation Of Outdoor Unit
Service Manual Refer to the following table for wrench moment of force: 8.6 Installation of Outdoor Unit Hex nut diameter(mm) Tightening torque(N m) 1. Fix the Support of Outdoor Unit(select it according to the Φ6 actual installation situation) 15~20 Φ9.52 (1) Select installation location according to the house structure. -
Page 50: Vacuum Pumping And Leak Detection
Service Manual (3) The water outlet cant be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.27) Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been... -
Page 51: Maintenance
Service Manual 9. Maintenance 9.1 Troubleshooting for Normal Malfunction Measure insulation resistance The breaker trips at once when it to ground to see if there is any is set to “ON”. leakage. Trip of breaker or blow of fuse The circuit or the part of the air conditioner has malfunction. - Page 52 Service Manual Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper Check and fill the leakage, then The refrigerant has leakage or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres-...
- Page 53 Service Manual The indoor fan motor is burned or breaks or has the heat protector Replace the fan motor or the defective part. malfunction. The built-in heat protector of the Replace the fan motor The fan does not motor breaks frequently because the run when it is set motor is abnormal.
- Page 54 Service Manual The torque of the swing motor is not enough First, check whether the connection is Wrong connection The swing fan wrong. If no, replace the parts does not run. The controller is damaged(IC2003 is damaged, the swing relay can not close, etc) C o n t r o l l e r m a l f u n c t i o n ( I C 2 0 0 3 Change controller...
- Page 55 Service Manual 9. Maintenance 9.1 Precautions before Maintenance There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even the power is cut off, there is high voltage inside the capacitors and it needs more than 20min to reduce the voltage to safety value. Touching the electrolytic capacitor within 20min after cutting the power will cause electric shock.
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Page 56: Error Code List
Service Manual 9.2 Error Code List Display Method of Outdoor Unit Indicator has 3 kinds of display Dual- status and during blinking, ON No. Malfunction Name A/C status Possible Causes 8 Code 0.5s and OFF 0.5s Display Yellow Green Indicator Indicator Indicator During cooling and drying... - Page 57 Service Manual Display Method of Outdoor Unit Indicator has 3 kinds of display Dual- status and during blinking, ON No. Malfunction Name A/C status Possible Causes 8 Code 0.5s and OFF 0.5s Display Yellow Green Indicator Indicator Indicator When the outdoor unit receive signal of Gathering refrigerant,the OFF 1s Gathering...
- Page 58 Service Manual Display Method of Outdoor Unit Indicator has 3 kinds of display Dual- status and during blinking, ON No. Malfunction Name A/C status Possible Causes 8 Code 0.5s and OFF 0.5s Display Yellow Green Indicator Indicator Indicator 1. Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than 265VAC, turn on the unit after the...
- Page 59 Service Manual Display Method of Outdoor Unit Indicator has 3 kinds of display Dual- status and during blinking, ON No. Malfunction Name A/C status Possible Causes 8 Code 0.5s and OFF 0.5s Display Yellow Green Indicator Indicator Indicator After the complete unit is deenergized for 20mins, check "During cooling whether the thermal grease on...
- Page 60 Service Manual Display Method of Outdoor Unit Indicator has 3 kinds of display Dual- status and during blinking, ON No. Malfunction Name A/C status Possible Causes 8 Code 0.5s and OFF 0.5s Display Yellow Green Indicator Indicator Indicator "During cooling and drying Malfunction of operation,compressor will stop To protect the electronical...
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Page 61: Troubleshooting For Main Malfunction
Service Manual 9.3 Troubleshooting for Main Malfunction ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? Insert the temperature sensor tightly Malfunction is eliminated. Is there short circuit due to tri-pover of the pa rts? Make the parts upright... -
Page 62: Installation And Maintenance
Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly. - Page 63 Service Manual 3. Malfunction of Protection of Jumper Cap C5 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the...
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Page 64: Indoor Unit
Service Manual 4. Communication malfunction E6 Start Cut off power, check if the wire between indoor unit and outdoor unit, and the wire inside electric box are connected correctly Reconnect the wire Malfunction is according to Connected correctly? eliminated wiring diagram Is there incorrect Match them match between the mainboard... - Page 65 Service Manual 5. Malfunction of detecting plate(WIFI) JF 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
- Page 66 Service Manual ●Outdoor unit: 1.Key detection point Test9 Test3 Test4 Test2 Test1 Test5 Test8 Tset7 Test6 Test10 Test11 Test12 Test value under normal Test NO Test point Corresponding component condition Neutral and live wires Test 1 Between A and C 160V~265V Neutral and live wires Test 2...
- Page 67 Service Manual ●Outdoor unit: (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: ●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Turn on the unit...
- Page 68 Service Manual (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: ●Is the connection between control panel AP1 and compressor COMP secure? Loose? Is the connection in correct order? ●Is the voltage input of the machine within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) ●Is the compressor coil resistance normal? Is the insulation of compressor coil against the copper tube in good condition? ●Is the working load of the machine too high? Is the radiation good?
- Page 69 Service Manual (3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is outdoor ambient temperature in normal range? ●Are the outdoor and indoor fans operating normally? ●Is the heat dissipation environment inside and outside the unit good? Fault diagnosis process: Overheat and high temperature protection...
- Page 70 Service Manual (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: ●Whether the compressor wiring is connected correct? ●Is compressor broken? ●Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
- Page 71 Service Manual (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation unit is powered on.
- Page 72 Service Manual (6) Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV connected well or not? Is PMV damaged? ●Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
- Page 73 Service Manual (7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Fault diagnosis process: Start Check wiring of the...
- Page 74 Service Manual (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? ●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...
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Page 75: Troubleshooting For Normal Malfunction
Service Manual 9.4 Troubleshooting for Normal Malfunction 1. Air conditioner can't be started up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery. -
Page 78: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit Fahrenheit Fahrenheit Fahrenheit display display display Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）... -
Page 79: Appendix 3: Pipe Expanding Method
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●... -
Page 80: Appendix 4: List Of Resistance For Temperature Sensor
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) C) Resistance(kΩ) C) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Temp( Temp( Temp( Temp( 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009... - Page 81 Service Manual Resistance Table of Tube Temperature Sensors for Outdoor and Indoor(20K) C) Resistance(kΩ) Temp( C) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Temp( Temp( Temp( 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289...
- Page 82 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) C) Resistance(kΩ) Temp( Resistance(kΩ) C) Resistance(kΩ) Resistance(kΩ) Temp( Temp( Temp( 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6...
- Page 84 Designed by Cooper&Hunter International Corporation, Oregon, USA www.cooperandhunter.com E-mail: info@cooperandhunter.com...
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