34
ENG
µchiller +0300053EN rel. 2.2 - 14.12.2021
Installation
2.13.7 Chillers/heat pumps, BLDC+On/O compressors and bipolar ExV expansion 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+).
J4 BMS
J3
J2
J5 FBus
S1 S3 5V
S2Y2
Y1ID1
ID2
ID3ID5
ID4S4
S6 +V
VL
S5
J1
J7
G0 G
J6
C
C
NO1
NO2
NO3
NO4
NO5
J8J10
J14
J9
J11
C
NO6
300053_145_R03
C1
E
L
F1
SL
V1
P
T
CP2
P
AL
AL
P
PU
TT
FL
1
V2
CP1
R
4WV
2_Set
OEV
T
0V
123
+-
power+
speed drive
T
S7
ID6
Fig. 2.ab
Ref. Description Ref. Description Ref. Description
E Evaporator P Pressure probe/pressure switch CP1/2 Compressor 1/2
4WV 4-way reversing valve C Condenser FL Flow switch
V1 Solenoid valve PU User pump L Liquid receiver
V2 Electronic expansion valve SL Liquid sightglass AL Alarm
T Temperature probe/thermostat 2_Set 2nd set point AL1 Remote alarm
OEV Oil equalisation valve F1 Filter-drier
Tab. 2.br