Table Of Contents - Carrier 38MARBQ12AA1 Service Manual

Table of Contents

Table Of Contents1
Introduction1
Model / Serial Number Nomenclatures2
Unit Sizes2
Specifications - Heat Pump3
Dimensions And Weights4
Clearances7
Clearances For Multiple Units7
Electrical Data8
Wiring8
Recommended Connection Method For Power And Communication Wiring8
Connection Diagrams9
Wiring Diagrams10
Wiring Diagram Size 12K (115V)10
Fan And Motor Specifications14
Refrigeration Cycle Diagrams15
Refrigerant Cycle Diagrams 9K (208/230V)16
Refrigerant Cycle Diagram 12K (208/230V)17
Refrigerant Cycle Diagram 18K (208/230V)18
Refrigerant Lines22
General Refrigerant Line Sizing22
Long Line Applications22
System Evacuation And Charging23
System Vacuum And Charge23
Using Vacuum Pump23
Deep Vacuum Method23
Electronic Functions24
Main Protection24
Outdoor Fan Running Rules24
Inverter Module Protection24
Indoor Fan Running Rules25
Compressor Temperature Protection25
Evaporator Temperature Protection25
Defrost Mode27
Forced Defrosting Mode27
Evaporator Coil Temperature Protection28
Drying Mode28
Forced Operation Function28
Point Check Function29
Enquiry Information29
Troubleshooting30
Safety30
Electrolytic Capacitors30
Discharge Position30
Indoor Unit Diagnostic Guides31
Diagnosis And Solution32
Outdoor Unit Error Display32
Sizes 12 (115V)32
Indoor And Outdoor Unit Communication Error (El01)34
Zero Crossing Detection Error Diagnosis And Solution (Eh02)36
The Indoor Fan Speed Is Operating Outside Of The Normal Range (Eh03)37
Dc Fan Motor (Control Chip Is In The Fan Motor)38
The Outdoor Fan Speed Is Operating Outside Of Normal Range (Ec07)39
Outdoor Dc Fan Motor (Dc Motor That Controls The Chip On The Pcb)40
Refrigerant Leakage Detection (El0C)43
Indoor Pcb/Display Board Communication Error (Eh06)44
Current Overload Protection (Pc08)45
Ipm Malfunction Or Igbt Over-Strong Current Protection (Pc00)46
Ipm Continuity Check47
Compressor Check48
Over Voltage Or Low Voltage Protection (Pc01)49
Inverter Compressor Drive Error (Pc04)52
Low Pressure Protection (Pc03)53
Indoor Units Mode Conflict (Match With Multi Outdoor Unit)54
Check Procedures56
Temperature Sensor Check56
Resistance Value57
Way Valve Check59
Measure The Voltage59
Use A Digital Tester To Measure Resistance59
Exv Check60
Winding Colors60
Main Parts Check61
Temperature Sensor Checking61
Pressure On Service Port62
Cooling Chart62
Heating Chart (R410A)63
System Pressure64
System Pressure Table-R410A64
Disassembly Instructions65
Outdoor Unit Sizes 9-12K (115V) Panel Plate65
Pcb Board 392
Four Way Valve (For Heat Pump Models)110
Compressor111
Safety Caution113
Temperature Sensor Resistance Value Table For T1, T2, T3, T4114
Temperature Sensor Resistance Value Table For T5115