Carrier 38LUVH035N Service Manual

LUV INVERTER SERIES Service Manual 42/38LUVH025N-1 42/38LUVH035N-1 42/38LUVH045N-1 42/38LUVH055N-1 42/38LUVH065N-1 42/38LUVH075N-1

PART4, 1 PART4. Wiring Diagram 1. Indoor Unit 42LUVH025N-1 42LUVH035N-1

PART4, 2 42LUVH045N-1 42LUVH055N-1, 42LUVH065N-1

PART4, 3 42LUVH075N-1

PART4, 4 2. Outdoor Unit 38LUVH025N-1, 38LUVH035N-1 38LUVH045N-1

PART4, 5 38LUVH055N-1, 38LUVH065N-1 38LUVH075N-1

PART5, 1 PART5. Installation Details 1. Wrench torque sheet for installation Outside diameter Torque Additional tightening torque mm inch N.cm N.cm Ф

PART5, 2 3. Pipe length and the elevation The pipe length and refrigerant amount: Model Pipe size Standard length (m) Max. Elevation B (m) Max. Lengt

PART5, 3 4. Air purging with vacuum pump Air and moisture in the refrigerant system have undesirable effects as below: ● Pressure in the system rise

PART5, 4 operation of the vacuum pump. Make evacuation for 15 minutes or more and check the compound meter indicates -76cmHg. 6) Turn the stem of th

PART6, 1 PART6. Operation Description 1. Abbreviation T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of

CONTENTS PART1. Safety Precaution PART2. Outline and Dimensions PART3. Refrigerant Cycle Diagram PART4. Wiring Diagram PART5. Installation Details

PART6, 2 2.7 Compressor preheating functions Preheating permitting condition: If T4(outdoor ambient temperature)＜3℃ and the machine connects to power

PART6, 3 4543403830282220Fmax=F4Fmax=F7Fmax=F8Fmax=F6Fmax=F3 If users switch on AC by remote controller, the compressor will run at the

PART6, 4 G: Decrease the frequency to the lower level until to F1. H: Run at F1 for 1h.(if T1-Ts<-2℃, the compressor will stop) Meanwhile, the com

PART6, 5 43HighLow1Medium1.5 3.2.4 Condenser temperature protection ---55℃<T3<60℃, the compressor frequency will decrease to the lower level un

PART6, 6 Fmax=F3Fmax=F5Fmax=F7Fmax=F9Fmax=F10Fmax=F8Fmax=F6Fmax=F234Off33282725242221191816171514Fmax=F4121165 If users switch on AC by remote

PART6, 7 +5.0+4.5+3.5+3.0+2.5+2.0+1.5+1.0HGHFEDCBA+0.5 While Temperature zone A B C D E F G Frequency F10 F9 F8 F7 F5 F3 F1 ΔT=0℃ as default. Note: W

PART6, 8 I3HEATI2HEATI1HEATOff DecreaseHoldResume Off: Compressor stops. Decrease: Decrease the running frequency to the lower level. Hol

PART6, 9 4438373433SettingLowBreezeOff17 If the compressor stops caused by the room temperature rising, the indoor fan will be forced to run 127 seco

PART6, 10 While TCDI=－6℃. ----T4＜0℃, If the 1st condition and 2nd condition items are satisfied, then the program judges if T2 has decreased more t

PART6, 11 Defrosting action： or

PART1, 1 PART1. Precaution 1. Safety Precaution  To prevent injury to the user or other people and property damage, the following instructions must

PART6, 12 3.3.5 Evaporator coil temperature protection ----T2> TEH2℃, the compressor running frequency decreases to the lower level and runs for 2

PART6, 13 2.01.51.0F3F2F1F12.50.50.0 3.5.3 Low indoor room temperature protection In drying mode, if room temperature is lower than 10℃, the compress

PART6, 14 3.7.2 Timer on. The machine will turn on automatically when reaching the setting time. 3.7.3 Timer off. The machine will turn off aut

PART6, 15 If AC is off before power off and AC is required to start up now, the compressor will have 1 minute delay when power on. Other conditions,

PART7, 1 PART7. Trouble Shooting 1. Indoor Unit Error Display Display LED STATUS E0 EEPROM parameter error E1 Indoor unit and outdoor unit communicat

PART7, 2 2. Diagnosis and Solution 2.1 EEPROM parameter error diagnosis and solution Shut off the power supply and turn on it 5s later The problem c

PART7, 3 2.2 Indoor unit and outdoor unit communication protection error diagnosis and solution No Yes Yes No Yes The unit does not work normally C

PART7, 4 2.3 Fan speed has been out of control diagnosis 2.4 Open or short circuit of temperature sensor diagnosis and solution Yes Replace the o

PART7, 5 2.5 IGBT over-strong current protection diagnosis and solution 2.6 Over voltage or too low voltage protection diagnosis and solution 2.7 H

PART7, 6 2.8 Inverter compressor drive error diagnosis and solution 2.9 Zero crossing detection error This is alarm signal when the main chip can’t

PART1, 2  For installation, always contact the dealer or an authorized service center.  Do not install the product on a defective installation st

PART7, 7 Model: DA150S1C-20FZ Measure the resistance value of each winding by using the multi-meter. Model: DA250S2C-30MT Measure the

PART7, 8 3.2 Outdoor Fan Motor Model: YDK24-6G Measure the resistance value of each winding by using the multi-meter. Model:

PART7, 9 Model: YDK53-6N Measure the resistance value of each winding by using the multi-meter. Model: YDK100-6T Measure the resistance valu

PART7, 10 3.3 Indoor Fan Motor Model: RPG20D Measure the resistance value of each winding by using the multi-meter. Model: RPG28

PART7, 11 Model: YDK36-4C(A) Measure the resistance value of each winding by using the multi-meter. Model: YDK50-4C Position

PART7, 12 3.4 Step Motor Model: MP2835, MP2423B Measure the resistance value of each winding by using the multi-meter. Model: MP242

PART7, 13 KΩ ℃

PART8, 1 8. Capacity table 42/38LUVH025N-1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Total cap

PART8, 2 42/38LUVH035N-1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Total capacity W 3303 3141

PART8, 3 42/38LUVH045N-1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Total capacity W 4955 4711

PART1, 3 There is risk of property damage, failure of product, or electric shock.  Do not open the inlet grill of the product during operation. (Do

PART8, 4 42/38LUVH055N-1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Total capacity W 5771 5488 51

PART8, 5 42/38LUVH065N-1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Total capacity W 6597 6273 58

PART8, 6 42/38LUVH075N-1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D 15ºC W Total capacity W 8249 7843 72

PART1, 4 It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inef

PART2, 1 PART2. Outline and Dimensions 1. Indoor Unit Model W D H 42LUVH025N-1 790 195 265 42LUVH035N-1 920 225 292 42LUVH045N-1 920 225 292 42LU

PART2, 2 2. Outdoor Unit Model L1 W1 H L2 W2 38LUVH025N-1 38LUVH035N-1 760 285 590 530 290 38LUVH045N-1 760 285 590 530 290 38LUVH055N-1 845 320

PART3, 1 PART3. Refrigerant Cycle Diagram INDOOR OUTDOORLIQUID SIDEGAS SIDEHEATEXCHANGE(EVAPORATOR)HEATEXCHANGE(CONDENSER)COMPRESSOR2-WAY VALVE3-WAY