
44
3064298_201507
25. Power supply to the indoor module
Rücklauftemperaturfühler
V
orlauftemperaturfühler
Drehzahl
Heizkreispumpe
Heizkreisdrucksensor
Heizkreisdurchfluss
L1
N1
1
L1
1
2
L2
2
3
L3
3
4
N1
4
5
N2
5
6
N3
6
7
PE
7
8
9
11 13 15
10 12 14 16
L2
N2
L3
N3
N L PE
PE
X1
X2
E1
E2
AF
SF
EBu
s
GN
D
GN
D
GN
D
GN
D
GN
D
PE
X9:
1
9
230V
F
A
N
FE
Anst. E-Heizung
+23V
CLR
+3V3
H
K
P
PW
M
A
W
O
C
O
M
R
x
A
WOCOM
Tx
GN
D
GN
D
GN
D
eBus
SG-1
GND
GN
D
wBus
Para
.
VIS TX
GN
D
+5V
D
FL-
H
K
VIS RX
R
LF
GN
D
+5
V
D
H
K
GN
D
+12V
S
G
-0,E
V
U
GN
D
VLF
GN
D
wBus
8
L1
N
N’
N’
N’
N’
NO
NC
L1’
L1’
L1-ZHP
Netzschalter
ge
br
gn
br
rt
or
or
rt
br
br
bl
ws
br
bl
bl
br
br
ge
gn
gn/ge
sw
sw
gn
ge
br
rt
vio
br
sw
bl
sw
rt
sw
vio
br
N
ws
br
gn
ge
L
N´
L´
bl
gr
gn
ge
SAF
1 2
AF
E1
eBUS
+
-
1 2
a b
L1
HKP
3WV
N
N
L1
Netz
N
L1
Z1
N
L1
A1
N
L1
HCM-3
E2
a b
K1
2
A2
A1
4
6 14
1
3
5 13
X10:
1
X8:8
1
X7:
13
1
bl
gn
bl
vi
o
ge
br
or
sw
PWM
P
6
X6:1
X4:1
5
X5:1
X3:1
2
4
1
1
2
9
10
2
eBus
X3
2
X30
8
1
X34
X33
Frontpanel
Kontaktplatine
AM/BM
rt
sw
vio
br
bl
gr
gn
ge
S1
Reset
X31:
6
1
+23V
+3V3
eBus
GND
wBus
+5V
X11:1
9
GND
+3V3
eBus
N.C.
wBus
VISTX
CCTX
CCRX
X1:1
16
X2:1
10
VISRX
sw
br
rt
or
br
bl
br
bl
br
or
rt
rt
or
gn
sw
br
ge
sw
sw
br
br
V
ersorgung ZHP
3WV
heize
n
intern
br: 230V
br: 230V
ge/gn: PE
bl:
N
bl:
N
ge/gn: PE
WOLF
WOL
F
AWO:
X_A1
AWO:
X_A3
AWO:
X_A2
SG_0, EV
U
Geräteerdun
g
COM, Ni
C
2,
C
1
Param
SG_1
Elektro-
Heizstab
sw
br
or
rt
ISM7
i
(optional)
WLAN
LA
N
S1
rt
or
br
sw
X1:1
4
Elektro
-
Heizsta
b
3WV
heizen
extern
25.4 Wiring diagram, HCM-3
control PCB, indoor module
Electric
heater
Supply
,
electric heating
Output, 3WUV heating/ DHW external
SG_0, PSU SG_1, C2, C1 COM, Ni
Output 3WUV heating/ DHW internal
Appliance earth
Output
ZHP
supply
Flow temperature sensor T_boiler
Heating circuit pressure sensor HC
pressure
Heating
circuit
flow
rate
DFL
HC
Return temperature sensor T_return
ZHP
speed
Control feed
Heating/cooling
E2/SAF
GTS
Contaxt PCB
Power switch