AERMEC HMG - Page 56

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NAME DESCRIPTION
Power Power
PE Ground line
AP1 Main board
AP2 Wave lter board
AP3
Control board of the inverter
compressor
AP4 Motor control board 1
AP5 Motor control board 2
COMP Inverter compressor
EH1 Compressor crankcase heater 1
EH2 Compressor crankcase heater 2
EH3 Base resistance 3
EKV1 Electronic expansion valve
HL1 Operation indication
HL2 Error indication
HP1 High pressure switch
K External contact switch
KM1 Water pump contactor 1 (220V)
KM2 Water pump contactor 2 (220V)
KM3
Auxiliary electric heater
contactor 3 (220V)
KM4
Auxiliary electric heater
contactor 4 (220V)
L Electric reactor (L1, L2, L3, L4)
LP1
Pressure switch protection
low pressure for heating
LP2
Pressure switch protection
low pressure for cooling
M1 Motor 1
M2 Motor 2
NAME DESCRIPTION
PM Phase monitor
RT1 Temp sensor outgoing water
RT2 Temp sensor antifreeze
RT3 Temp sensor defrost
RT4 Temp sensor I unload
RT5 Temp sensor inlet water
RT6
Temp sensor tube bundle
refrigerant inlet
RT7 Intake temperature sensor
RT8 Temp sensor environment
RT9
Temp sensor tube bundle
refrigerant outlet
SP1 High pressure sensor
SW Water ow switch
XT1 Wiring board 1 (L1, L2, L3, N)
XT2 Wiring board 2 (1 ~ 8)
XT3 Wiring Board 3 (9 ~ 16)
XT4 Wiring board 4 (L1, L2, L3, N)
XT5 Wiring board 5 (17 ~ 20)
YV1 4-way valve
YV2 Solenoid valve