Carrier 38HVM124303P Service Manual

WALL MOUNTED AIR CONDITIONER SERVICE MANUAL 11M INVERTER This manual applies to the models: 42HVM109303 / 38HVM109303(P) 42HVM

103.2 Outdoor Unit More than 30cmMore than 60cmMore than 70cmMore than 30cmMore than 60cm(Service space)Fence orobstacles Model W D H W1 A B

114. Refrigerant Cycle Diagram INDOOR OUTDOORLIQUID SIDEGAS SIDEHEATEXCHANGE(EVAPORATOR)HEATEXCHANGE(CONDENSER)COMPRESSOR2-WAY VALVE3-WAY VALVEElect

125. Wiring Diagram 5.1 Indoor Unit MS11M-09HRFN1-MW0W, MS11M-12HRFN1-MV0W, MS11M-18HRFN1-MU0W MS11M-24HRFN1-MT0W

135.2 Outdoor Unit MOC-09HFN1-MW0W, MOC-12HFN1-MV0W MOF-18HFN1-MU0W

14MOG-24HFN1-MT0W

156 Installation Details 6.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque mm inch N.cm N.cm Ф6.35

166.3 Pipe length and the elevation The pipe length and refrigerant amount: Model Pipe size Standard length (m) Max. Elevation B (m) Max. Length A (

176.4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below: ● Pressure in the system rise

18the meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the pressure can’t achieve -0.1Mpa after pum

19Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the g

CONTENTS 1. Precaution ...

206).When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose from the 3-way valve’s service port immed

216).When the electronic scale displays the proper weight (refer to the gauge and the pressure of the low side), disconnect the charge hose from the

225). Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa. 6). Set the 3-way valve to the closed position i

23Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the g

242. Refrigerant charging Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the cha

25Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage

267. Operation Characteristics Temperature Mode Cooling operation Heating operation Dryi

278. Electronic function 8.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of condenser

288.3 Main Protection 8.3.1 Three Minutes Delay at restart for compressor 1 minute delay for the 1st time start-up and 3 minutes delay for others. 8

29If T4＞5 or ℃ the compressor starts running, the preheating function will stop.

31. Precaution 1.1 Safety Precaution  To prevent injury to the user or other people and property damage, the following instructions must be follow

308.4 Operation Modes and Functions 8.4.1 Fan mode (1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting

314543403831.529.52220Fmax=F4Fmax=F7Fmax=F8Fmax=F6Fmax=F3 If users switch on AC by remote controller, the compressor will run at the F

32H: Run at F1 for 1h.(if T1-Ts<-2 , ℃ the compressor will stop) Meanwhile, the compressor running frequency is limited by the current. I3COOL I2

33 Auto fan running rules: For MS11M-09HRFN1-MW0W, MS11M-12HRFN1-MV0W, MS11M-18HRFN1-MU0W models: abcd5.04.02.51.06.0T1-TseH(H-L)*0.75+L(H-L)*0.5 +

34---T2<0 , the compressor will stop and restart when T2℃>=5 .℃ ---0℃≦T2<4 , the compressor frequency will be limited and decreased to the

35+5.0+4.5+3.5+3.0+2.5+2.0+1.5+1.0HGFEDCBA+0.5 While the zones of A,B,C... are corresponding to different compressor running frequency. ΔT=0 as def

36Resume: No limitation for frequency. Note: When AC is in “hold” zone for 3 minutes, the compressor frequency will rise to the higher level. (The f

37The anti-cold wind function is as below: Auto fan action in heating mode. For MS11M-09HRFN1-MW0W, MS11M-12HRFN1-MV0W, MS11M-18HRFN1-MU0W models:

38The units run with T3＜3 for 80 minutes and T3 keeps℃ lower than TCDI+2 f℃ or more than 3 minutes. ----T4＜0 ,℃ If the 1st cond

39For 18k,24k models: Compressoronoffonononoffoffoff4-way valveOutdoor fanIndoor fanIndoor fan breeze(10s)xxno longer than 10mFrequency F830s10s10sF

4condenser and evaporator.  For installation, always contact the dealer or an authorized service center.  Do not install the product on a defect

40-1<ΔT≤1℃ Fan-only ΔT≤-1℃ Heating Indoor fan will run at auto fan of the relevant mode. The louver operates same as in relevant mode. If the m

418.4.6 Oil return 8.4.6.1 If the compressor running frequency is lower than 35Hz for 80 minutes, the frequency will be raised to 58 Hz .The unit wi

42LED will be off and the AC running mode has not been changed. 8.4.8.7 The setting time is relative time. 8.4.9 Sleep function mode 8.4.9.1 Operat

43according to the temperature from follow me signal, and the temperature collection function of room temperature sensor will be shielded, but the e

44the room temperature steady at 8℃ and prevents household things freezing when the house is unoccupied for a long time in severe cold

459. Troubleshooting 9.1 Indoor Unit Error Display Operation lamp Timer lamp Display LED STATUS ☆ 1 time X E0 Indoor unit EEPROM parameter error ☆

469.2 Diagnosis and Solution 9.2.1 EEPROM parameter error diagnosis and solution(E0) EEPROM: a read-only memory whose contents can be era

479.2.2 Indoor / outdoor units communication error diagnosis and solution(E1)

489.2.3 Fan speed has been out of control diagnosis and solution(E3/E7)

49Index 1: 1.Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Measure the resistance value of each winding by using the tester. If any r

5There is risk of property damage, failure of product, or electric shock.  Do not open the inlet grill of the product during operation. (Do not to

509.2.4 Open circuit or short circuit of temperature sensors diagnosis and solution(E5/E6)

519.2.5 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)

529.2.6 Over voltage or over low voltage protection diagnosis and solution (P1)

539.2.7 High temperature protection of compressor top diagnosis and solution (P2) 9.2.8 Refrigerant Leakage Detection diagnosis and solution(EC)

549.2.9 Inverter compressor drive error diagnosis and solution (P4)

55Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capaci

56 Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) se

572.Compressor checking Measure the resistance value of each winding by using the tester. 3.IPM continuity check Turn off the powe

6could cause product malfunction or inefficient operation.  Operational  Do not expose the skin directly to cool air for long time. (Do not sit

7 2. Function Model Names of Indoor/Outdoor Units DC Inverter Capacity Indoor units Outdoor units 9k MS11M-09HRFN1-MW0W MOC-09HFN1-MW0W 12k MS11

83. Dimension 3.1 Indoor Unit Model L(mm) R(mm) H(mm) Dimension of installation hole(mm) MS11M-09HRFN1-MW0W 140 110 45 ￠65 MS11M-12HRFN1-MV0

9 Model L(mm) R(mm) H(mm) Dimension of installation hole(mm) MS11M-18HRFN1-MU0W 260 135 45 ￠65 Model L(mm) R(mm) H(mm) Dimension of install