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Installation and Maintenance

Service Manual

Steps

Procedure

18. Remove left side plate

Remove screws connecting left side plate 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
condenser and condenser, and then remove
the support plate of condenser.

19. Remove condenser

Left side plate

Condenser

Chassis sub-assy

Содержание CHML-U36RK4

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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