LGRED Heat LMU300HHV Service Manual

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3. Piping Diagrams
M
Discharge
Temperature
Thermistor
Suction
Temperature
Thermistor
Inverter
Accumulator
Compressor
Electronic
Expansion
Valve
Condenser Out
Temperature
Thermistor
Inlet Air
Temperature
Thermistor
Outdoor Unit
Ø 6.35
Flare Connection
Ø9.52
Flare Connection
Condensing
Temperature
Thermistor
ROOM A
ROOM A
ROOM B
Field Piping
Liquid(Ø6.35)
Field Piping
Gas(Ø9.52)
: Cooling
: Heating
ROOM B
ROOM C
ROOM D
Main SVC V/V
ROOM C
ROOM D
Main SVC V/V
Pressure
Sensor
PCB Connector Description
CN_MID_BR Cond Middle Pipe
CN_DISCHARGE_BK Discharge Pipe
CN_C_PIPE_VI Cond Out Pipe
CN_SUCTION_GR Suction Pipe
CN_AIR_YL Air
CN_H_PRESS_RD Pressure Sensor
CN_H_GAS_BK Hot Gas Valve
CN_4WAY_YL 4WAY valve
CN_HEATER_BL Base pan heater
3.1 30k