INSTALLATION
Specification
22
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16.2 Wiring diagram
B6
T
B2
T
B5
T
B1
T
B8
T
B9
T
X4
L N
Y1
F3
> p
X3
L1 N
A3
L N PE
U V W
U
V
W PE
PE GND A B
U V W
M1
M
3~
M6
M
1~
1
2
X2
L H
F5
X27
X29
B7
T
B13
T
B16
T
X28
Z3
E2
X12.1
4
3
2
1
+12..+18V
ND 4..20mA
+12...+18V
HD 4...20mA
X12.4
7
6
5
4
3
2
1
X12.3
3
2
1
CAN GND
CAN L
CAN H
X12.6
5
4
3
2
1
+12V
Phase 4
Phase 3
Phase 2
Phase 1
X12.5
5
4
3
2
1
+12V
Phase 4
Phase 3
Phase 2
Phase 1
A2
(IWS IV)
X12.2
12
11
10
9
8
7
6
5
4
3
2
1
Heißgastemperatur
Heißgastemperatur GND
Heizungsrücklauftemperatur
Heizungsrücklauftemperatur GND
Außenlufttemperatur
Außenlufttemperatur GND
Verdichtereintrittstemperatur
Verdichtereintrittstemperatur GND
Verdampferausgangstemperatur
Verdampferausgangstemperatur GND
Ölsumpf
Ölsumpf GND
PE Versorgung
N Versorgung
L Versorgung
X11.1
1
2
3
X12.7
Heizungsvorlauf
Heizungsvorlauf GND
Abtauendefühler
Abtauendefühler GND
Frostschutz
Frostschutz GND
1 2 3 4 5 6
X11.11
1
2
1 2 3 4 5 6 7
X12.9
1 2 3 4
X12.8
1 2 3 4 5
X12.10
GND
+5V
A Modbus
B Modbus
1 2 3 4
X12.11
X11.2
1
2
Verdichter Schütz N
Verdichter Schütz L
X11.3
1
2
Abtauventil N
Abtauventil L
X11.4
1
2
Ölsumpfheizung N
Ölsumpfheizung L
X11.5
PE
N
Düsenheizung
1
2
3
X11.6
1
2
3
X11.7
1
2
3
Inverterversorgung (EVU)
X11.8
1
1
3
X11.9
1
2
3
X11.10
1
2
3
M7
M
M9
M
2bn
1wh
p
P1
2bn
1wh
p
P3
X30
Z12
Z15
Z15
Z15
Z12
bu
bn
wh
Z13
Z14
1 turn
5 turns
5 turns
Z14
1 turn
4 turns
2 turns
5 turns
5 turns
D
00000
61
60
3
A2 Integral heat pump control unit (IWS)
A3 Inverter compressor/fan
B1 Heating flow temperature sensor - PT1000
B2 Heating return temperature sensor - PT1000
B5 Hot gas temperature sensor - PT1000
B6 Outdoor air temperature sensor - PT1000
B7 Compressor intake temperature sensor - PT1000
B8 Evaporator discharge temperature sensor - PT1000
B9 Frost protection temperature sensor - PT1000
B13 Defrost end temperature sensor - PT1000
B16 Oil sump temperature sensor - PT1000
E2 Oil sump heater
F3 High pressure switch 45 bar
F5 Klixon HG compressor
M1 Compressor motor
M6 Fan motor
M7 Stepper motor for el. expansion valve
M9 Inverter cooling valve
P1 High pressure sensor (42 bar)
P3 Low pressure sensor (16 bar)
X2 External BUS terminal
X3 External power terminal
X4 External control terminal
X11.1
3-pin IWS plug - supply
X11.3
2-pin IWS plug - defrost signal
X11.4
2-pin IWS plug - oil sump
X11.5
3-pin IWS plug - nozzle heating
X11.8
IWS plug, inverter supply
X12.2
12-pin IWS plug - temperature sensors
X12.3
IWS plug, CAN bus
X12.4
7-pin IWS plug - sensors
X12.5
5-pin IWS plug - el. expansion valve
