8. Piping Diagram
316
Category
Symbol
Description
Compressor
Compressor
Heat Exchanger
HX_M
Heat Exchanger - Main (Outdoor unit)
HX_ID
Heat Exchanger - Indoor unit
Tank
Accumulator
Filter
Filter
EEV
E_M
Electronic Expansion valve - Main
Solenoid Valve
V_4W
Solenoid valve - 4Way
Valve (etc)
SV_G
Service Valve - Gas Pipe
SV_L
Service Valve - Liquid Pipe
Thermistor
T_CT
Thermistor - Compressor Top
T_D
Thermistor - Discharge pipe
T_CO
Thermistor - Cond Out
T_A
Thermistor - Ambient
T_IR
Thermistor - Indoor Room
T_IM
Thermistor - IDU Heat Exchanger Mid
T_II
Thermistor - IDU Heat Exchanger In
Fan
OFM1
Outdoor Fan Motor 1
OFM2
Outdoor Fan Motor 2
IFM
Indoor Fan Motor
Pressure switch
PW_H
Pressure Switch - High