DescriptionDesigna-
tion
Solenoid for 4-way valve20S
Auxiliary relay (for CH)52X1
Auxiliary relay (for DH)52X2
Auxiliary relay (for 20S)52X3
Auxiliary relay (for SV1)52X4
High pressure pressostat63H1
CapacitorC1
Compressor heaterCH
Compressor motorCM
Terminal blockCnA~Z
Current sensorCT
Drain pan heaterDH
Diode moduleDM
FuseF
Fan motorFM01,
FM02
Intelligent power moduleIPM
Induction coilL/L1
Indication lamp (red)LED1
Indication lamp (green)LED2
Low pressure transmitterLPT
Expansion valve for heatingQN1 (EEV-
H)
Expansion valve for coolingQN3 (EEV-
C)
PumpdownSW1, 9
Local settingsSW3, 5, 7,
8
Terminal blockTB
Temperature sensor, outdoor airBT28 (Tho-
A)
Temperature sensor, hot gasTho-D
Temperature sensor, heat exchanger outTho-R1
Temperature sensor, heat exchanger, inTho-R2
Temperature sensor, suction gasTho-S
Temperature sensor, IPMTho-P
57Chapter 11 | Technical dataNIBE AMS 10