40
Electrical connections
S1
S3
S2
CN63
CN61
CN31
CN66
CN18
Tsolar
CN36
+12V T1 T2 GND
CN9
CN15
Tw2
CN38
T52
1 2 3 4 5
1 2 3 4 5
6 7 8 9 10 11 12
AHS1 AHS2 1ON
TBH IBH2
IBH1
C1 C1 C1 C1 C1 C1 C1 C1
A B X/HA Y/HB E
6 7 8 9 10
T1 T2 E1 H1 H2
1OFF 2ON 2OFF 3ON 3OFF P-c P-o P-s P-d
P-x
ALARM/DEF
13 14 15 16 17 18 19 20 21 22 23
24
HEAT5
HEAT6
M2
M1
CL
COM
HT
0-10V
EVU
SG
S2
S1
K2
K1
SW9
CN60
HEAT2
CN32
AC OUT
CN22
N IBH1 IBH2 TBH
CN42
CN29
CN11 CN30
8.4 External component connections
Ref. Terminal block CN11
1
1 AHS1
Additional boiler
2 AHS2
2
3 1ON
SV1 DHW 3-way valve4 1OFF
17 C1
3
5 2ON
SV2 area 2-way valve6 2OFF
18 C1
4
5 2ON
SV3 area 2 3-way mixing valve7 3ON
19 C1
5
9 P_c
pump P_c (zone2)
20 C1
6
10 P_o
pump P_o (zone1)
21 C1
7
11 P_s
Solar pump P_s
22 C1N
8
12 P_d
DHW recirculation pump
23 C1
9
13 TBH
TBH heater
16 C1
10
15 IBH1
External backup heater 93kW)
17 C1