Related Manuals for Carrier 42LUVH025N
Summary of Contents for Carrier 42LUVH025N
- Page 1 Air Conditioner Service Manual DC Inverter Hi-Wall Model Discription Refrigerant type Power supply 42/38LUVH025N 09K HP R410A 1Ph,220-240V,50Hz 42/38LUVH035N 12K HP R410A 1Ph,220-240V,50Hz 42/38LUVH045N 18K HP R410A 1Ph,220-240V,50Hz...
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Page 2: Table Of Contents
CONTENTS 1. Precaution .............................. 1 1.1 Safety Precaution 1 1.2 Warning 1 2. Function ..............................4 3. Dimension .............................. 6 3.1 Indoor Unit 3.2 Outdoor Unit 7 4. Refrigerant cycle diagram ........................8 5. Wiring diagram ............................9 5.1 Indoor Unit 5.2 Outdoor Unit 10 6. -
Page 3: Precaution
1. Precaution There is risk of fire, electric shock, explosion, or 1.1 Safety Precaution injury. „ „ To prevent injury to the user or other Do not install the product on a people and property damage, the following defective installation stand. It may cause injury, accident, or damage to the instructions must be followed. - Page 4 „ To avoid vibration of water leakage. If strange sounds, or small or smoke „ Do not install the product where the comes from product. Turn the breaker off or noise or hot air from the outdoor unit could disconnect the power supply cable. damage the neighborhoods.
- Page 5 There are sharp and moving parts that could There is risk of fire or explosion. „ cause personal injury. Do not recharge or disassemble the „ Do not drink the water drained from the batteries. Do not dispose of batteries in a fire. product.
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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) - 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.
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Page 8: Dimension
3. Dimension 3.1 Indoor Unit 42LUVH025N 42LUVH035N 42LUVH045N... -
Page 9: Outdoor Unit
3.2 Outdoor Unit 38LUVH025N 38LUVH035N 38LUVH045N... -
Page 10: Refrigerant Cycle Diagram
4. Refrigerant cycle diagram... -
Page 11: Wiring Diagram
5. Wiring diagram 5.1 Indoor Unit 42LUVH025N 42LUVH035N... -
Page 12: Outdoor Unit
42LUVH045N 5.2 Outdoor Unit 38LUVH025N 38LUVH035N... - Page 13 38LUVH045N...
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Page 14: Installation Details
6. Installation details 6.1 Wrench torque sheet for installation Outside diameter Torque inch Kgf.m Ф6.35 Ф9.52 Ф12.7 6.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit 6.3 Pipe length and the elevation Standard Min. -
Page 15: Air Purging Of The Piping And Indoor Unit
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 intervals. If the outdoor unit is installed below the indoor unit – no trap is required in such installation. If the units are installed at the same level –... - Page 16 Procedure If gas leakage is discovered in step (3) above, take 1. Recheck the piping connections. the following measures. 2. Open the valve stem of the 2-way valve If the leaks stop when the piping connections are counterclockwise approximately 90’, wait 10 tightened further, continue working from step (4).
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Page 17: 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 18: 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 19: 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 20: 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 21: 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 22: Capacity Table
7. Capacity table 7.1 42/38LUVH025N SUMMER OUTDOOR TEMPERATURE DRY Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Total capacity W 2477 2356 2192 2013 1848 1724 21ºC D 15ºC W Sensitive capacity W 1751 1698 1624 1541 1462 1399 Input W. Total capacity W 2656 2537... - Page 23 7.2 42/38LUVH035N SUMMER OUTDOOR TEMPERATURE DRY Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Total capacity W 3303 3141 2922 2684 2464 2299 21ºC D 15ºC W Sensitive capacity W 2338 2268 2169 2058 1953 1869 Input W. 1035 1101 Total capacity W 3541 3383...
- Page 24 7.3 42/38LUVH045N SUMMER OUTDOOR TEMPERATURE DRY Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Total capacity W 4955 4711 4383 4026 3696 3448 21ºC D 15ºC W Sensitive capacity W 3509 3403 3254 3088 2930 2804 Input W. 1276 1386 1495 1604 1713...
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Page 25: 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. 42VHC109713G 42VHC112713G 42VHC118713G Auto indicator This indicator illuminates when the air conditioner is in AUTO operation. -
Page 26: Fan-Only Mode
If the exhaust temp. of compressor is higher than 115 and lasts for 5 seconds, the compressor stops and does not resume until the exhaust temp. is lower than 90 8.3.5 Inverter module Protection, Inverter module Protection itself has a protection function against current, voltage and temperature. - Page 27 -0.5 -1.0 When the machine is running and ΔT(=room temp. – setting temp.) changes, the frequency of compressor will rise or descend a grade (7 minutes after starting). After start, if ΔT stays in a zone for 3 minutes, the frequency will change as follow: Zone A : Current frequency rise a grade till the maximum grade.
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Page 28: Drying Mode
After running for 30 minutes the machine will turn back to previous setting mode. Indoor fan operation rule. In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto. Auto fan in cooling mode acts as follow: high mediu 8.5.6Condenser high temperature protection function(in cooling and drying mode) - Page 29 8.7.2 Indoor fan speed can be set as high, medium, low or auto grade, but anti-cold-wind function is preferential. Auto fan action in heating mode. mediu high After 7minutes start the operation frequency of compressor submits to following rule : Remark: ΔTcon can be changed among 0, -2,- 4 , the 1)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 30 comp. pause I3HEAT freq. descends if curr. rises; I2HEAT freq. remains if curr. descends I1HEAT running normally 8.7.5 Indoor heat exchanger high temperature protection. If T2 60 , the compressor will stop and not resume until T2 48 . 8.7.6 Defrosting mode.
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Page 31: Auto Mode Function
compressor 4-way valve outdoor fan indoor fan indoor fan breeze longer than 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”... -
Page 32: Forced Operation Function
8.8.3 If the machine switches mode between heating and cooling, compressor will keep stopping for 15 minutes and then rechoose mode according to ΔT. 8.8.4 If the setting temperature is modified, the machine will rechoose running function. 8.9 Forced operation function 8.9.1 Forced cooling and auto function can carry out with a touch button. -
Page 33: 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 34: Outdoor Chassis Heating Cable (Optional)
8.16 Outdoor chassis heating cable (optional) Heating cable is fixed on outdoor chassis to help deicing and to avoid freezing. The heating cable’s power is 85W, rated voltage is 220v-240v. If outdoor temperature is lower than 5 , the heating cable begins to work. -
Page 35: Indoor Unit Error Display
9.1 Indoor Unit Error Display 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 Outdoor unit fan protection IGBT over-strong current protection Over voltage or too low voltage protection... - Page 36 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 the unit work normally? Check wiring between indoor Reconnect and retest outdoor unit.
- Page 37 9.2.4 E3(indoor fan speed out of control) diagnosis and solution Is the indoor fan Repair the connector motor connector and and reconnect voltage being Indoor applied to the fan defective Replace the motor? Replace the indoor fan motor 9.2.5 E5(Open or short circuit of outdoor temperature sensor) diagnosis and solution. outdoor Repair the connector temperature...
- Page 38 9.2.8 P1(over voltage or too low voltage protection) diagnosis and solution. Be sure the power Is the power supply supply is normal when Replace the outdoor e box 9.2.9 P2(temperature protection of compressor top) diagnosis and solution. Does Reconnect and retest. connection Is refrigerant protector...
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Page 39: Key Parts Checking
9.2.10 P4(inverter compressor drive error) diagnosis and solution. Is the connection of Reconnect and retry compressor good? Is the wiring sequence Replace outdoor If the problem comes Replace inverter to again, check coil resistance of inverter 9.3 Key parts checking. 9.3.1. - Page 40 Outdoor Fan Motor Model: YDK24-6G Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Black - Red 372Ω (20 ) Blue - Red 249Ω (20 ) Yellow - Blue 132Ω (20 ) Model: YDK50-6C Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Black - Red...
- Page 41 9.3.4 Step Motor (Model: MP2835 MP2423B). Measure the resistance value of each winding by using the multi-meter. Position Resistance Value Blue - Red Pink - Orange 200Ω±7% (25 ) Pink - Yellow Yellow - Red 9.3.5 Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor,...