
Terminal
Connection layout
21
Pump HK2 L
22
Pump HK2 N
23
Pump HK2 Pe
24, 25, 26
BW L Switching valve drinking
water preparation
27
BW N Switching valve
drinking water preparation Pe
28 A
Duration phase L1
29 Z
Valve cooling L
30 N
Valve cooling N
31
Valve cooling Pe
32
Pump cooling L
33
Pump cooling N
34
Pump cooling Pe
35
Solar pump L
36
Solar pump N
37
Solar pump Pe
38
Pump indoor module L
39
Pump indoor module N
40
Pump indoor module Pe
Terminal block X2
Terminal
Connection layout
1
L1
2
L2
3
L3
4
N
5
PE
Terminal block X3
Terminal
Connection layout
1
F9 external sensor
2
F8 collector sensor
3
F6 warm water sensor
4
F5 inlet sensor HK2
5
Analogue remote control
FBR2 (F3)
Terminal
Connection layout
6
Analogue remote control
FBR2
7
F1 solid-fuel combustion
vessel
8
F11 reference sensor hot
water meters
9
F12 reference sensor solar,
lower buffer storage
10
Not connected
11
F14 solar collector / solid-fuel
combustion vessel
12
F15 flow meter WS
13
F17 return sensor heat pump
14
eBus +
15
eBus -
16
CANH
17
CANL
18
CAN -
19
CAN +
Terminal block X4
Terminal
Connection layout
1
Not connected
2
Not connected
3
Not connected
4 to 16
Ground sensors F1-F17
Terminal block X5
Terminal
Connection layout
S1
Communications outdoor unit
S2
Communications outdoor unit
S3
Communications outdoor unit
DANGER!
These terminals are from the outdoor
module supplied with 230 V!
53