Carel uChiller UCHBP00000200

28
ENG
µchiller +0300053EN rel. 2.2 - 14.12.2021
Installation
2.13.4 Chiller/water-to-water heat pump, On/O compressors and bipolar ExV expan-
sion valve
Important: The black lines refer to the electrical connections, the grey lines the serial connections between controller
and options (I/O expansion for the second circuit, EVD EVO and Power+).
Fig. 2.y
Ref. Description Ref. Description Ref. Description
C1/C2 Condenser 1/2 SL1/2 Liquid sightglass 1/2 4WV Reversing valve
E1/E2 Evaporator 1/2 F1/2 Filter-drier 1/2 P Pressure probe/pressure switch
V1_C1 Solenoid valve circuit 1 FL Flow switch AL Alarm
V1_C2 Solenoid valve circuit 2 CP1/2 Compressor 1/2 T Temperature probe/thermostat
V2_C1 Electronic expansion valve circuit 1 PU1/2 User pump 1/2 L1/2 Liquid receiver 1/2
V2_C2 Electronic expansion valve circuit 2 PS Source pump AL1_C1/2 Remote alarm circuit 1/2
R1/2 Frost protection heater 2_Set 2nd set point
Tab. 2.aq
Circuit 1
Circuit 2