Carrier 38LUVH055N Service Manual Download | Manualshive

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6. Installation details

6.1 Wrench torque sheet for installation

Outside diameter

Torque

mm

inch

Kgf.m

Ф9.52

3/8

3.5

Ф16.0

5/8

8.0

6.2 Connecting the cables

The power cord of connect should be selected according to the following specifications sheet.

Grade

Unit

21K

24K

28K

mm

2

2.5

2.5

2.5

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Summary of Contents for 38LUVH055N

Page 1: ...r Service Manual DC Inverter Hi Wall Model Description Refrigerant Power supply 42 38LUVH055N 21K HP R410A 1Ph 220 240V 50Hz 42 38LUVH065N 24K HP R410A 1Ph 220 240V 50Hz 42 38LUVH075N 28K HP R410A 1Ph...

Page 2: ...the elevation 10 6 4 Air purging of the piping and indoor unit 11 6 5 Pumping down Re installation 12 6 6 Re air purging Re installation 13 6 7 Balance refrigerant of the 2 way 3 way valves 14 6 8 Ev...

Page 3: ...8 13 Sleep function mode 27 8 14 Auto Restart function 27 8 15 Ionizer Plasma dust collector function optional 27 9 Troubleshooting 28 9 1 Indoor Unit Error Display 29 9 2 Diagnosis and Solution 31 9...

Page 4: ...r damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal in...

Page 5: ...fficient operation Operational Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the product for special purposes s...

Page 6: ...r direction according to operation mode Turbo wind high med low breeze Restarting is for approx 3 minutes Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in coo...

Page 7: ...ency at operation mode Hydrophilic aluminum fin It is only operated in the heating operation mode except defrosting operation Anti rust cabinet Valve protection cover 4 way valve control Made from ele...

Page 8: ...1 Indoor Unit 3 2 Outdoor Unit Dimension mm Mode W H D L1 L2 38LUVH055N 845 695 335 560 360 38LUVH065N 38LUVH075N 895 860 333 590 355 Dimension Mode W H D 42LUVH055N 42LUVH065N 1080 330 228 42LUVH075...

Page 9: ...6 4 Refrigerant cycle diagram...

Page 10: ...7 5 Wiring diagram 5 1 Indoor Unit 42LUVH055N 42LUVH065N 42LUVH075N...

Page 11: ...8 5 2 Outdoor Unit 38LUVH055N 38LUVH065N 38LUVH075N...

Page 12: ...heet for installation Outside diameter Torque mm inch Kgf m 9 52 3 8 3 5 16 0 5 8 8 0 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications s...

Page 13: ...2 5 3 10 25 40 Caution Oil Traps oil traps must be fitted to vertical suction risers where outdoor unit is above indoor unit Fit a trap at the bottom of the vertical rise and then at 5m maximum interv...

Page 14: ...flare connection for gas leakage 4 Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to press the...

Page 15: ...hose with the push pin to the gas service port 5 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 6 Set the 2 way valve to the cl...

Page 16: ...te repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigera...

Page 17: ...ice port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1Mpa If there is no air in the refrigeration cycle the pressure when the air con...

Page 18: ...ved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after...

Page 19: ...fied amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wait appr...

Page 20: ...5353 5239 5041 4798 4553 4344 Input W 1557 1702 1847 1992 2138 2283 32 C D 23 C W Total capacity W 6503 6608 6514 6289 5995 5699 Sensitive capacity W 5072 5134 5091 5006 4944 4969 Input W 1541 1712 18...

Page 21: ...4977 4738 4495 4289 Input W 1650 1804 1958 2112 2266 2419 32 C D 23 C W Total capacity W 7096 7209 7108 6862 6541 6218 Sensitive capacity W 5008 5069 5026 4943 4881 4906 Input W 1634 1814 1995 2175 2...

Page 22: ...6 5962 5675 5385 5138 Input W 2005 2192 2379 2566 2754 2941 32 C D 23 C W Total capacity W 8445 8580 8459 8166 7785 7400 Sensitive capacity W 5999 6073 6021 5921 5847 5877 Input W 1985 2205 2424 2644...

Page 23: ...of that is 0 50 When the unit stops operation it returns to original factory settings Displays the malfunction code or protection code Frequency indicator This indicator appears only when the compress...

Page 24: ...or user turns on the machine and compressor runs preheating function will stop 8 3 8 Compressor heating cable If outdoor temperature is lower than 5 the compressor heating cable begins to work If outd...

Page 25: ...apacity test mode 2 The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or setting temperature 8 5 5 Turbo function press the TURBO button on remote c...

Page 26: ...g mode 8 7 1 Indoor fan action Anti cold wind function If the compressor stops caused by room temperature rising indoor fan will be forced to run 127 seconds with breeze During this period anti cold w...

Page 27: ...with T3 3 for 80 minutes and T3 keeps lower than 4 for more than 3 minutes Condition 2 If T4 0 The program judges according to the condition 1 if the two items are satisfied then judges if T2 has desc...

Page 28: ...ed the machine can not be turned into rating capacity test mode The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or setting temperature 8 7 9 Turbo...

Page 29: ...n off the machine In forced operation remote control is available 8 8 3 In forced operation mode all general protections is available 8 8 4 In forced cooling mode after running for 30 minutes the mach...

Page 30: ...the descending stops and indoor fan is fixed as low speed and anti cold wind is available 8 13 4 If user uses timer on function in sleep mode sleep function will pause and not resume until reaches the...

Page 31: ...pacitors in PCB and relative circuit in outdoor unit even shut down the power supply electricity power still are kept in capacitors do not forget to discharge the electricity power in capacitor Electr...

Page 32: ...r compressor drive error Note E4 P3 Reserved function 42LUVH075N Failure phenomenon Defrosting lamp Timer lamp Auto lamp Operation Lamp EEPROM parameter error On On On On Indoor outdoor units communic...

Page 33: ...30...

Page 34: ...supply after 1 minute connect the power supply turn on the unit with remote controller Does the unit work normally Check the wiring between indoor and outdoor unit Is the connection of L N S and GND g...

Page 35: ...en mid pin and N on CN1 YES Indoor PCB is defective Replace the indoor PCB YES Replace the indoor fan motor NO NO Is power supply and connection of connectors good Indoor PCB is defective Replace the...

Page 36: ...ion Be sure the power supply is normal when using the units Is all connections on PCB and between PCB and compressor good Repair or correct the connector or connection Replace the outdoor PCB and then...

Page 37: ...ck coil resistance of inverter compressor is it 0 668ohm YES Replace inverter compressor Reconnect and retry NO NO Replace the outdoor PCB YES NO YES Does compressor operate Is the connection good Is...

Page 38: ...asure the resistance value of each winding by using the multi meter 9 3 2 Outdoor Fan Motor Model YDK55 6G Measure the resistance value of each winding by using the multi meter Position Resistance Val...

Page 39: ...he resistance value of each winding by using the multi meter Indoor Fan Motor Model YDK36 4C A Measure the resistance value of each winding by using the multi meter Position Resistance Value Black Red...

Page 40: ...r Model MP2423 Measure the resistance value of each winding by using the multi meter Position Resistance Value White Red 204 8 20 Brown Black 95 8 20 Position Resistance Value Blue Red 200 7 25 Pink O...

Page 41: ...or Measure the resistance value of each winding by using the multi meter Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 15 20 25 30 40 50 60 Resistance Value K 26 9 20 7 16...

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