Heat Controller B-MMC09FA-1 Service Manual page 62

Troubleshooting Guide
3. A-MMH24FA-1
Field Piping
Gas
Field Piping
Liquid
Refrigerant Flow
Cooling
Heating
Th1: Discharge thermistor
Th2: Discharge thermistor
Th3: Outdoor temperature thermistor
Th4: Defrost thermistor
4. A-MMC36FA-1
Field Piping
Gas
Field Piping
Liquid
Refrigerant Flow
Cooling
Th1: Discharge thermistor
Th2: Discharge thermistor
Th3: Outdoor temperature thermistor
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Only for training and service purposes
Ø9.52
Room B
Ø9.52
Strainer
Room A
Header
EEV-B
Ø6.35
Room B
Ø6.35
EEV-A
Room A
Ø9.52
Room C
Ø9.52
Room B
Ø9.52
Room A
Header
Ø6.35 EEV-C
Room C
EEV-B
Ø6.35
Room B
Ø6.35
EEV-A
Room A
High pressure S/W
Th1 Th2
Strainer
High pressure S/W
Th1 Th2
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OUTDOOR UNIT
Th3
Heat
Exchanger
Th4
OUTDOOR UNIT
Th3
Heat
Exchanger
LGE Internal Use Only