Carrier 38MAQB09-1 - Page 68

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DISASSEMBLY INSTRUCTIONS SIZES 24K − 30K (CONT)

2) Remove the

screws securing

the IPM board.

3) Release the three

temp. sensor

connectors.

4) Remove the two

blue wires

connected to the

four way valve.

Main Page

Table of Contents1
Safety Considerations1
Introduction1
Model/Serial Number Nomenclatures2
Specifications3
Outdoor Unit 9K and 12K4
Dimensions4
- Outdoor Unit 18K5
- Outdoor Unit 24K and 30K6
Performance6
- Clearances Outdoor7
- Power and Communication Wiring8
Electrical Data8
Connection Diagrams9
- Wiring Diagram for 9K and 12K 115V10
- Outdoor Unit Control Board10
- Wiring Diagram for 9K and 12K 208/230V11
- Wiring Diagram for 18K 208/230V12
- Wiring Diagram for 24K 208/230V13
- Wiring Diagram for 30K 208/230V14
Fan and Motor Specifications15
Outdoor Coil16
Refrigerant Coil Specifications16
Refrigerant Cycle Diagram Heat Pumps17
Refrigeration Cycle Diagrams17
- General Refrigerant Line Sizing18
- Long Line Applications18
- Piping and Refrigerant Information18
- Additional Charge Table18
Refrigerant Lines18
- System Vacuum and Charge19
- Using Vacuum Pump19
- Deep Vacuum Method19
System Evacuation and Charging19
- Cooling Mode20
- Main Protection20
- Operation Modes and Functions20
Electronic Function20
- Heating Mode21
- Defrosting Mode21
- Evaporator Coil Temperature Protection21
Troubleshooting21
- Electrolytic Capacitors22
- Discharging Position22
Diagnostic Guides23
- Outdoor Unit Error Display Sizes 09−1224
- Outdoor Unit Error Display Size 1826
- Outdoor Unit Error Display Size 2427
- Outdoor Unit Error Display Size 3028
- EEPROM Parameter Error Diagnosis and Solution29
- Outdoor PCB (18K Model)29
- Indoor / Outdoor Unit’s Communication Diagnosis and Solution30
- Test the DC Voltage31
- Test the Reactor Resistance31
- Zero Crossing Detection Error Diagnosis and Solution32
- Fan Speed Has Been out of Control Diagnosis and Solution33
- Motor Connector34
- Outdoor DC Fan Motor34
- Indoor or Outdoor DC Fan Motor34
- Index34
- Open/Short Circuit of Temperature Sensor Diagnosis and Solution35
- Check the Connection35
- Refrigerant Leakage Detection Diagnosis and Solution36
- Overload Current Protection Diagnosis and Solution37
- IPM Malfunction or IGBT Over−Strong Current Protection38
- P−U39
- P−V39
- P−W40
- N−U40
- N−W41
- N−V41
- Over/Too Low Voltage Protection Diagnosis and Solution42
- Test42
- High Temperature Protection of Compressor Top Diagnosis and Solution43
- Inverter Compressor Drive Error Diagnosis and Solution44
- Main Parts Check45
- Temperature Sensor Checking45
- Temperature Sensor Resistance Value Table for T1, T2, T3, T446
Appendix46
- Resistance Value49
- Input Terminal49
- Compressor Checking49
- IPM Continuity Check50
- Pressure on Service Port50
- Heating Charts50
- Cooling Charts51
- Disassembly Instructions Sizes 09-1252
- Panel Plate52
- Fan Assembly53
- Electrical Parts55
- Four-Way Valve56
- Compressor57
- Disassembly Instructions Sizes 24K-30K64

Carrier 38MAQB09-1 - Page 68

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