Related Manuals for Carrier 42LUVH055N
Summary of Contents for Carrier 42LUVH055N
- Page 1 Air Conditioner 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,220-240V,50Hz...
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Page 2: Table Of Contents
3. Dimension ..............................5 3.1 Indoor Unit ................................. 5 3.2 Outdoor Unit ................................5 4. Refrigerant cycle diagram .......................... 6 5. Wiring diagram ............................. 7 5.1 Indoor Unit ................................. 7 42LUVH055N 42LUVH065N 42LUVH075N..................... 7 5.2 Outdoor Unit ................................8 38LUVH055N 38LUVH065N ..........................8 38LUVH075N ................................ - Page 3 8.12 Timer function ..............................27 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 9.3 Key parts checking.
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Page 4: Precaution
1. Precaution It may cause injury, accident, or damage to the 1.1 Safety Precaution product. To prevent injury to the user or other people Be sure the installation area does not and property damage, the following instructions deteriorate with age. If the base collapses, the air conditioner could fall must be followed. - Page 5 during operation. (Do not touch the electrostatic Operational filter, if the unit is so equipped.) Do not expose the skin directly to cool air for There is risk of physical injury, electric shock, or product failure. long periods of time. (Do not sit in the draft). ...
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Page 6: Function
2. Function Indoor unit Operation by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Anti-freezing control in cooling Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in cooling mode Ionizer (Optional) Time Delay Safety control... - Page 7 Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly. Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode. 4 way valve control It is only operated in the heating operation mode except defrosting operation.
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Page 8: Dimension
3. Dimension 3.1 Indoor Unit Dimension Mode 42LUVH055N 1080 42LUVH065N 42LUVH075N 1250 3.2 Outdoor Unit Dimension(mm) Mode 38LUVH055N 38LUVH065N 38LUVH075N... -
Page 9: Refrigerant Cycle Diagram
4. Refrigerant cycle diagram... -
Page 10: Wiring Diagram
5. Wiring diagram 5.1 Indoor Unit 42LUVH055N 42LUVH065N 42LUVH075N... -
Page 11: Outdoor Unit
5.2 Outdoor Unit 38LUVH055N 38LUVH065N 38LUVH075N... -
Page 12: Installation Details
6. Installation details 6.1 Wrench torque sheet for installation Outside diameter Torque inch Kgf.m Ф9.52 Ф16.0 6.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit... -
Page 13: Pipe Length And The Elevation
6.3 Pipe length and the elevation Standard Min. Max. Max. Additional Pipe size Capacity length length Elevation Length refrigerant Btu/h Liquid B (m) A (m) (g/m) 5/8’’ (Ф16.0) 3/8’’ (Ф9.52) 21K/24K/28K 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) intervals. -
Page 14: Air Purging Of The Piping And Indoor Unit
6.4 Air purging of the piping and indoor unit Required tools: Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector. Note: The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction of unit. -
Page 15: Pumping Down (Re-Installation)
6.5 Pumping down (Re-installation) Procedure 1. Confirm that both the 2-way and 3-way valves are set to the opened position. Remove the valve stem caps and confirm that the valve stems are in the opened position. Be sure to use a hexagonal wrench to operate the valve stems. 2. -
Page 16: Re-Air Purging (Re-Installation)
6.6 Re-air purging (Re-installation) Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the closed position. 2. Connect the charge set and a charging cylinder to the service port of the 3-way valve. Leave the valve on the charging cylinder closed. 3. -
Page 17: Balance Refrigerant Of The 2-Way, 3-Way Valves
6.7 Balance refrigerant of the 2-way, 3-way valves Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. Leave the valve on the charge set closed. Connect the charge hose with the push pin to the service port. -
Page 18: Evacuation
6.8 Evacuation Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. Confirm that the gauge needle has moved 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 turning off the vacuum pump). -
Page 19: Gas Charging
6.9 Gas charging Procedure: 1. Connect the charge hose to the charging cylinder. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant). -
Page 20: Capacity Table
7. Capacity table 42/38LUVH055N SUMMER OUTDOOR TEMPERATURE DRY Indoor 25º C 30º C 35º C 40º C 45º C 50º C Conditions 5565 5291 4923 4522 4151 3872 Total capacity (W) 21º C D 4656 4516 4319 4098 3888 3721 15º... -
Page 21: 42/38Luvh065N
42/38LUVH065N SUMMER OUTDOOR TEMPERATURE DRY Indoor 25º C 30º C 35º C 40º C 45º C 50º C Conditions 6072 5773 5371 4934 4529 4225 Total capacity (W) 21º C D 4597 4459 4264 4046 3839 3674 15º C W Sensitive capacity (W) 1616 1755... -
Page 22: 42/38Luvh075N
42/38LUVH075N SUMMER OUTDOOR TEMPERATURE DRY Indoor 25º C 30º C 35º C 40º C 45º C 50º C Conditions 7226 6871 6392 5871 5390 5028 Total capacity (W) 21º C D 5507 5341 5108 4847 4599 4401 15º C W Sensitive capacity (W) 1964 2132... -
Page 23: Electronic Function
8. Electronic function 8.1 Abbreviation T1: Indoor ambient temperature T2: Pipe temperature of indoor heat exchanger T3: Pipe temperature of outdoor heat exchanger T4: Outdoor ambient temperature 8.2 Display function 8.2.1 Icon explanation on indoor display board. 42/38VHC121713G 42/38VHC124713G 42/38VHC128713G ①... -
Page 24: Fan-Only Mode
Inverter module Protection itself has a protection function against current, voltage and temperature. If these protections happened, the corresponding code will display on indoor unit LED. 8.3.5 Sensor protection at open circuit and breaking disconnection 8.3.6 Indoor fan delayed open function For all modes, when the units are turned on, the indoor fan can operate 10 seconds after the action of louver. -
Page 25: Drying Mode
Zone B: Elevate or keep or descend the frequency of compressor. Zone H: Compressor stops after running as the minimum frequency for 60 minutes or ΔT is less than -2℃. 8.5.2 Indoor heat exchanger anti-freezing function. If T2 is lower than 0℃, the compressor stops and resumes when T2>5℃. 8.5.3 Outdoor unit current control in cooling mode(refer to the parameter table) comp. -
Page 26: Heating Mode
In drying mode, if room temperature is lower than 10℃, compressor will stop and not resume until room temperature climbs up to 12℃. 8.6.3 Evaporator anti-freezing protection, condenser high temperature protection and outdoor unit frequency limit are valid, and they are the same as that in cooling mode. 8.6.4 Horizontal louver action is the same as that in cooling mode. - Page 27 8.7.3 After starting, the operation frequency of compressor submits to following rule: ℃ Remark: ΔTcon can be changed among 0, -2,- 4℃, the default is 0℃ When the machine runs, if ΔTh stays in a zone for 3 minutes, action of frequency is as follow: Zone A: Elevate current frequency one grade, and not stop until the maximum grade.
- Page 28 The machine has run for 10 minutes in defrosting. 8.7.7 Defrosting action compressor 4-way valve outdoor fan indoor fan indoor fan breeze 10s 100s no longer than 10 minutes 8.7.8 Rating capacity test function Set the indoor unit with remote controller as: high fan, 30℃ in heating mode, then press “TURBO” button on controller 6 times or more within 10 seconds(make sure indoor unit receives these signals), the machine will turn into rating capacity test mode, the buzzer will make a “di”...
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Page 29: Auto Mode Function
8.8 Auto mode function 8.8.1 This mode can be chosen with remote controller and the setting temperature can be changed between 17~30℃. In auto mode, the machine will choose cooling, heating or fan-only mode according to ΔT(ΔT =T1-Ts). ΔT=T1-Ts Running mode ΔT＞1℃... -
Page 30: Timer Function
8.12 Timer function 8.12.1 Timing range is 24 hours, and the minimum resolution is 15 minutes. 8.12.2 Timer on. After turning off, the machine will turn on automatically when reaching the setting time. 8.12.3 Timer off. After turning on, the machine will turn off automatically when reaching the setting time. 8.12.4 Timer on/off. -
Page 31: Troubleshooting
9. Troubleshooting Safety Because of there are capacitors 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. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) Bulb (25-40W) -
Page 32: Indoor Unit Error Display
9.1 Indoor Unit Error Display 42LUVH055N 42LUVH065N Display LED STATUS EEPROM parameter error Indoor / outdoor units communication protection Zero-crossing signal error Fan speed out of control Open or short circuit of outdoor temperature sensor Open or short circuit of room or evaporator temperature sensor... -
Page 34: Diagnosis And Solution
9.2 Diagnosis and Solution 9.2.1 E0(EEPROM parameter error) error diagnosis and solution Circuit or software error on indoor PCB Replace indoor PCB 9.2.2 E1(indoor / outdoor units communication protection) error diagnosis and solution Disconnect the power supply, after 1 minute, connect the power supply, turn on the unit with remote controller Does unit... - Page 35 9.2.3 E2(zero-crossing signal error) diagnosis and solution Is power supply and Be sure the power supply is connection good correct connectors good? connection Indoor defective. Replace the indoor PCB. 9.2.4 E3(indoor fan speed out of control) diagnosis and solution Is the indoor fan motor Repair the connector and connector reconnect...
- Page 36 9.2.7 P0(Module protection) diagnosis and solution. Is all connections on Repair or correct the PCB and between PCB connector or connection. and compressor good? Replace the outdoor PCB and then repower Check the compressor failure cleared? 9.2.8 P1(over voltage or too low voltage protection) diagnosis and solution. Is the power supply Be sure the power supply good?
- Page 37 9.2.9 P2(temperature protection of compressor top) diagnosis and solution. Does compressor Is the connection Reconnect and retest. operate? good? Is refrigerant circulation protector Replace the protector. volume normal? normal? Charge refrigerant Check the outdoor main PCB. Is there some problem? abnormality Replace outdoor...
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Page 38: Key Parts Checking
9.3 Key parts checking. 9.3.1. Compressor checking (Model: DA150S1C-20FZ) Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Blue - Red 0.95Ω Blue - Black (20℃) Red - Blue (Model: DA250S2C-30MT) Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Blue - Red... - Page 39 Outdoor Fan Motor (Model: YDK53-6N) Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Black - Red 87Ω (20℃) Red -Yellow 162Ω (20℃) Outdoor Fan Motor (Model: YDK100-6T) Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Black - Red...
- Page 40 Indoor Fan Motor (Model: YDK50-4C) Position Resistance Value 204Ω±8% (20℃) White - Red 95Ω±8% (20℃) Brown- Black 9.3.4 Step Motor (Model: MP2423). Measure the resistance value of each winding by using the multi-meter. 9(10) Position Resistance Value 7(8) Blue - Red 5(6) 200Ω±7% (25℃) Pink - Orange...
- Page 41 9.3.5 Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor exhaust temp.(Te) sensor. 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 (℃) Resistance Value (KΩ) 26.9...