22
ENG
µchiller +0300053EN rel. 2.2 - 14.12.2021
Installation
2.13 Functional diagrams
2.13.1 Chillers, On/O compressors and thermostatic 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_140_R03
C1
E1
L1
F1
SL1
V1_C1
V1_C2
CP1
P
T
CP2
R1
V2_C1
V2_C2
T
C2
E2
V2
T
SL2
L2
CP1 CP2
P
P
P
R2
T
P
AL
AL
AL1_C2
AL1_C1
P
PU2
PU1
TT
FL
F2
T
1
2
G0 G
C
C
NO1
NO2
NO3
NO4
NO5
J2
J3
S1 S3 5V
S2Y2
Y1ID1
ID2
ID3ID5
ID4S4
S6 +V
VL
S5
J4 BMS
J5 FBus
Circuit 1
Circuit 2
S7
ID6
Fig. 2.v
Ref. Description Ref. Description Ref. Description
C1/C2 Condenser 1/2 PU1/2 User pump 1/2 AL1_C1/2 Remote alarm circuit 1/2
E1/E2 Evaporator 1/2 L1/2 Liquid receiver 1/2 CP1/2 Compressor 1/2
V1_C1 Solenoid valve circuit 1 SL1/2 Liquid sightglass 1/2 R1/2 Frost protection heater 1/2
V1_C2 Solenoid valve circuit 2 F1/2 Filter-drier 1/2 P Pressure probe/pressure switch
V2_C1 Thermostatic expansion valve circuit 1 FL Flow switch T Temperature probe/thermostat
V2_C2 Thermostatic expansion valve circuit 2 AL Alarm
Tab. 2.p
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