Cooper & Hunter CHML-U36RK4 Service Manual Download Page 50

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Installation and Maintenance

Service Manual

Steps

Procedure

15. Remove compressor mounting plate sub-assy

Remove the 4 foot nuts fixing compressor
mounting plate sub-assy and chassis, to
remove the compressor mounting plate sub-
assy.

Remove the screws fixing PFC electrical
inductance and isolation sheet, to remove the
PFC electrical inductance.

Remove screws connecting middle isolation
sheet and support plate of condenser, chassis,
and then remove the middle isolation sheet.

16. Remove PFC electrical inductance

17. Remove middle isolation sheet

compressor mounting

plate sub-assy

PFC electrical

inductance

Middle isolation sheet

Summary of Contents for CHML-U36RK4

Page 1: ...CHML U42RK5 NORDIC MULTI LIGHT SERIES Service manual Air conditioners Thank you for choosing Cooper Hunter air conditioner please read this service manual carefully before operation and retain it for...

Page 2: ...and Maintenance 11 8 Installation Manual 15 8 1 Preparation before Installation 16 8 2 Installation Instruction 18 9 Troubleshooting 24 9 1 Malfunction Indicator 24 9 2 Malfunction Checking and Elimi...

Page 3: ...1 Technical Information Service Manual 1 Summary Part Technical Information Outdoor Unit CHML U36RK4 CHML U42RK5...

Page 4: ...on expansion valve Electron expansion valve Cooling Operation Ambient Temperature Range O C 15 43 15 43 Heating Operation Ambient Temperature Range O C 20 24 20 24 Condenser Material Aluminum Fin copp...

Page 5: ...r of Liquid Pipe Metric 2 6 6 Outer Diameter of Gas Pipe Metric 2 9 52 9 52 Outer Diameter of Liquid Pipe Metric 3 6 6 Outer Diameter of Gas Pipe Metric 3 9 52 9 52 Outer Diameter of Liquid Pipe Metri...

Page 6: ...4 Technical Information Service Manual 3 Outline Dimension Diagram 631 401 1016 1098 1106 361 440 Unit mm...

Page 7: ...ve Compressor Silencer Gas Liqiud Separator Heat Exchanger Heat Exchanger Heat Exchanger Heating Cooling Outdoor Unit Indoor Unit Electronic Expansion Valve High Pressure Swicth Filter Filter Stop Val...

Page 8: ...1 1 1 225 81 7 1 1 8 1 1 7 3 3 7 3 1 1 1 225 81 7 8 7 1 1 225 81 7 8 1 1RWH 0RWRU JURXQG RQO DSSOLHV WR WKH LURQ VKHOO PRWRU 7 5 27720 7 5 1 5 32 5 1 57 57 57 57 57 57 57 57 57 1 57 57 57 3 7 8 1 8 8...

Page 9: ...1 57 57 57 3 7 8 1 8 8 1 8 1 2 2 5 3 3 1 1 8 1 5 7 50 1 2 7 50 1 2 7 50 1 2 7 50 1 2 5 9 9 9 9 867 7 03 6 1625 28778 7 03 6 1625 2875220 7 03 6 1625 48 3 3 7 03 6 1625 6 3 3 7 03 6 1625 3 3 7 50 1 2 2...

Page 10: ...P terminals of overload protector 7 LPP terminals of high pressure switch 8 EVA EVE terminals of EXV electronic expansion valve 9 CN802 CN803 terminals of temperature sensor 10 COMU terminals of commu...

Page 11: ...rst then restart under the required mode e Defrosting function When the defrosting condition is satisfied the 4 way valve reverses the direction the outdoor fan stop After the 4 way valve reverses the...

Page 12: ...ected the unit will stop as the indoor temperature reaching set temperature PFC is closed display IPM protection malfunction After the compressor stops for 3min the unit will resume operation status a...

Page 13: ...unit adequately grounded The grounding wire can t 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...

Page 14: ...tilated The continuous ventilation status should be kept during the operation process Check whether there is fire source or potential fire source in the maintenance area The naked flame is prohibited...

Page 15: ...talling the unit at the place where there may be leaked corrosive gas or flammable gas If there leaked gas around the unit it may cause explosion and other accidents 7 Do not use extension cords for e...

Page 16: ...ng 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 T...

Page 17: ...e the bound 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 th...

Page 18: ...he unit at a place where is adequa to withstand the weight of the unit and make sure the unit would not shake or fall off Try to keep the unit away from combustible inflammable and corrosive gas or ex...

Page 19: ...proof insulating pipe Wall thickness of pipe 0 5 1 0 mm bearing pressure 3 0MPa The longer the connection pipe is the more cooling and heating capacity will decrease Fig 1 500 1000 2000 500 500 500 2...

Page 20: ...Outline and dimension of the outdoor unit CHML U36RK4 Outline dimension andMounting holes CHML U42RK5 Outline dimension andMounting holes Fig 2 Fig 3 8 2 Installation Instruction 1106 350 282 440 401...

Page 21: ...pe and the joints by sponge and then tighten them with the plastic tape CAUTION During the connection of the indoor unit and the refrigerant pipe never pull any joints of the indoor unit by force othe...

Page 22: ...5m 15m 7 5m 7 5m 25m 75m CHML U42RK5 Fitting pipe Total length actual length of fitting pipe length of farthest fitting pipe ft Outdoor unit at upper Outdoor unit at lower Height difference between in...

Page 23: ...hile it should be insulated to prevent condensing otherwise the improper installation would cause water leakage and then wet the household wares in the room Under the occurrence of an error like burni...

Page 24: ...ied out by the technician as instructed by the loc al laws regulations and also this manual The diameter of the power cord should be large enough and once it is damaged it must be replaced by the dedi...

Page 25: ...rts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord code designation 60245 IEC 57 CAUTIONS If the supply cord is damaged it must be replaced by the manuf...

Page 26: ...EPROM reads and write protection Flash 11 times Low PN voltage protection Flash 12 times PL Over voltage protection for PN Flash 13 times PH PFC protection Flash 14 times HC PFC module temperature pro...

Page 27: ...g prevention protection 53 Unit C overheating prevention protection 54 Unit D overheating prevention protection 55 Unit A communication wire misconnection or expansion valve malfunction 56 Unit B comm...

Page 28: ...est the resistance between the three phases Reconnect the wire of the compressor according to the correct wiring method If the resistance is normal If the resistance is above 500M Replace the compress...

Page 29: ...upply is normal Power supply is abnormal Turn on the unit after power supply resumes normal Replace the outdoor mainboard End Yes No Start Check If the power supply is normal Power supply is abnormal...

Page 30: ...chart Eliminate the malfunction Eliminate the malfunction Eliminate the malfunction Replace the compressor End The unit appears desynchronizing as soon as energizing and starting The stop duration of...

Page 31: ...oor mainboard Replace the outdoor unit Replace the fan capacitor Refrigerant amount is too much Input voltage is normal connected well Check if fan terminal is Improve radiation situation of the unit...

Page 32: ...f the eletric expansion valve is coonected well Replace the overload protector Check the coil of the eletric expansion valve replace it if it is broken Eliminate the malfunction Reconnect according to...

Page 33: ...longer than 3min If the connection wire of the compressor is connected well and correctly Eliminate the malfunction Reconnecttheconnectionwire ofthecompressoraccording to the wiring diagram If the re...

Page 34: ...ether the temperature senspr is normal according to resistance table Replace the temperature sensor with the same model Replace the controller with the same model End Eliminate the malfunction6 6 Temp...

Page 35: ...connection wire of DC fan is connected reliably If it is loose Flow chart Start End Replace the outdoor mainboard If the connection wire of DC fan is loose Check if the outdoor fan is blocked by forei...

Page 36: ...Communication malfunction of some indoor units De energize check if the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Connected correctly Reconnect...

Page 37: ...ording to the wiring diagram Connected correctly Reconnect according to the wiring diagram De energize check if the connection wire between the outdoor mainboard and the filter board according to the...

Page 38: ...onment is good Flow chart Start If the outdoor ambient temperature is above 53 It is a normal protection please operate the unit after the outdoor ambient temperature has changed If the indoor and out...

Page 39: ...details Malfunction of the ODU fan motor The ODU fan motor can t operate Refer to point 4 of maintenance method for details Malfunction of compressor Compressor can t operate Refer to point 5 of maint...

Page 40: ...n pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Can t Operate Possible causes Discriminatin...

Page 41: ...35 36 37 38 39 40 42 43 44 45 47 48 49 50 51 41 46 No Description Part Code Qty CHML U36RK4 1 Front Grill 26905200121 1 2 Handle 26233053 1 3 Front Side Plate Sub Assy 01305508 1 4 Front Side Plate 0...

Page 42: ...15004 1 25 Cut off Valve 07130239 4 26 Electric Expand Valve Fitting 4304413234 1 27 Rear Grill 01574100007 1 28 Condenser Assy 01163780 1 29 Condenser support plate 01895309 1 30 Valve Support Assy 0...

Page 43: ...41 43 44 45 46 48 49 50 51 52 42 47 No Description Part Code Qty CHML U42RK5 1 Front Grill 26905200121 1 2 Handle 26233053 1 3 Front Side Plate Sub Assy 01305508 1 4 Front Side Plate 01305065P 1 5 In...

Page 44: ...ve 07130239 5 26 Electric Expand Valve Fitting 4304413222 1 27 Rear Grill 01574100007 1 28 Condenser Assy 01163780 1 29 Condenser support plate 01895309 1 30 Valve Support Assy 030163000002 1 31 Elect...

Page 45: ...turning off all power supplies and discharge the refrigerant completely before removal Valve cover Steps Procedure 1 Before disassembly Complete axonometric drawing Remove the connection screw fixing...

Page 46: ...te and left side plate lift the top cover upwards to remove it Remove the screws connecting the front side plate with chassis and middle isolation sheet and then remove the front side plate Remove the...

Page 47: ...d then remove the outer case a Remove the grounding wire screw on the electric box assy and then remove the grounding wire b Disconnect the wiring terminals of compressor high pressure switch compress...

Page 48: ...ay valve and vapour liquid separator compressor cut off valve sub assy and condenser and then remove the 4 way valve Note When unsoldering the spot weld wrap the 4 way valve with wet cloth completely...

Page 49: ...n lift the compressor upwards to remove the compressor and damping cushion Note Keep the ports of discharge pipe and suction pipe from foreign objects Unsolder spot welds connected with vapour liquid...

Page 50: ...ting plate sub assy Remove the screws fixing PFC electrical inductance and isolation sheet to remove the PFC electrical inductance Remove screws connecting middle isolation sheet and support plate of...

Page 51: ...and support plate of condenser chassis and then remove the left side plate Remove screws connecting condenser and chassis and then remove the condenser Remove screws connecting support plate of conde...

Page 52: ...4 2 29 68 68 20 77 77 25 86 86 30 1 Standard length of connection pipe 16 4ft 24 6ft 26 2ft 2 Min length of connection pipe is 9 84ft 3 Max length of connection pipe and max high difference More detai...

Page 53: ...eps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and prevent t...

Page 54: ...66 88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 06...

Page 55: ...983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 6...

Page 56: ...62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 2...

Page 57: ...Cooper Hunter International Corporation www cooperandhunter com...

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