Carrier 38MHRBQ12AA3 Manuals

Manuals and User Guides for Carrier 38MHRBQ12AA3. We have 2 Carrier 38MHRBQ12AA3 manuals available for free PDF download: Service Manual, Installation Instructions Manual

Carrier 38MHRBQ12AA3 Service Manual (75 pages)

Outdoor Unit Single Zone Ductless System

Brand: Carrier | Category: Air Conditioner | Size: 9.52 MB

Table of Contents
1
Safety Considerations
1
Introduction
1
- Unit Sizes
  2
- Outdoor Unit
  2
Model/Serial Number Nomenclatures
2
- Compatibility
  3
- Performance
  3
Specifications
3
Sizes 9K and 12K Heat Pump and Size 18K Cooling Only
5
Dimensions
5
- Size 18K Heat Pump
  6
- Size 24K
  7
- Outdoor Unit Clearance
  8
- Clearances for Multiple Units
  8
Electrical Data
9
Wiring
9
Connection Diagrams
10
Refrigeration Cycle Diagrams
17
Refrigerant Lines
18
Electronic Functions
18
- System Vacuum and Charge
  19
- Using Vacuum Pump
  19
- Deep Vacuum Method
  19
System Evacuation and Charging
19
- Compressor Running Rules
  20
- Cooling Mode
  20
- Fan Mode
  20
- Operation Modes and Functions
  20
- Defrost Mode
  21
- Auto−Mode
  21
- Dry Mode
  21
- Auto−Restart Function
  21
- Point Check Function
  22
- Information Enquiry
  22
- Safety
  23
- Electrolytic Capacitors
  23
- Discharge Position
  23
Troubleshooting
23
Outdoor Unit Diagnostic Guides
24
PCB Diagrams
25
- LED Codes
  26
- Indoor PCB
  27
- Outdoor PCB
  27
- EEPROM Parameter Error Diagnosis and Solution
  27
- Indoor / Outdoor Unit’s Communication Diagnosis and Solution
  28
- Test the DC Voltage
  29
- Test the Reactor Resistance
  29
- Zero Crossing Detection Error Diagnosis and Solution
  30
- Fan Speed Has Been out of Control Diagnosis and Solution
  31
- Indoor AC Fan Motor
  32
- DC Motor Voltage Input and Output
  32
- Outdoor DC Fan Motor
  32
- Indoor or Outdoor DC Fan Motor
  32
- Open Circuit/Short Circuit of Temperature Sensor Diagnosis/Solution
  33
- Check the Connection
  33
- Refrigerant Leakage Detection Diagnosis and Solution
  34
- Overload Current Protection Diagnosis and Solution
  35
- IPM Malfunction or IGBT Over−Strong Current Protection
  36
- P−U
  37
- P−V
  37
- P−W
  38
- N−U
  38
- N−V
  39
- N−W
  39
- Over/Too Low Voltage Protection Diagnosis and Solution
  40
- Test
  40
- High Temperature Protection of Compressor Top Diagnosis and Solution
  41
- Inverter Compressor Drive Error Diagnosis and Solution
  42
- Main Parts Check
  43
- Temperature Sensor Checking
  43
- Compressor Checking
  44
- IPM Continuity Check
  45
- Fan Motor
  45
- Pressure on Service Port
  46
- Cooling Chart
  46
- Heating Chart
  47
- Disassembly Instructions Sizes 12K
  48
- Panel Plate
  48
- Fan Assembly
  49
- Electrical Parts
  51
- Four-Way Valve
  53
- Compressor
  53
- Disassembly Instructions Sizes 18K
  59
- Disassembly Instructions Sizes 24K
  65
- Temperature Sensor Resistance Value Table for T1, T2, T3, T4
  71
Appendix
71
- Temperature Sensor Resistance Value Table for T5
  72
- Celsius to Fahrenheit
  73

Carrier 38MHRBQ12AA3 Installation Instructions Manual (14 pages)

Outdoor Unit Single Zone Ductless System

Brand: Carrier | Category: Air Conditioner | Size: 1.91 MB

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