12.2 Electrical diagram
Fig.93
Electrical diagram
AD-3001548-03
X201
X200
X203
X202
X041
X20
X25
X26
X19
X21
X22
X141-1
X204
X111
X112
X33
X32
X52
X51
X53
X54
X55
X81
X83
X31
X13
X14
X101
X102
X36
X37-1
X37-...
X37-7
X39
X205
X41
X12
X02
X03
X10
X11
X08
X07
X04
X05
X01
L N PE1
230V
L` N`
X04 / X05
X06
X07
X12
X11
X10
X09
X08
X03
X02
X01
23
8
9
7
3
4
5
1
2
11
6
10
22
21
20
19
18
17
16
15
13
14
12
1 Line filter
2 On / off switch
3 SCB expansion board power supply
4 SCB expansion board power supply
5 SCB zone expansion board power supply
6 CB-01 connection board power supply (X19) and
CAN connections (X36 and X39)
7 SCB expansion board CAN connections (X37-1 -
X37-7)
8 Service connector
9 Control panel (HMI)
10 Control unit CU-GH13
11 Configuration storage unit (CSU)
12 Ignition transformer power supply
13 Fan power supply
14 Gas control valve
15 Air pressure differential switch
16 Water pressure sensor
17 Return temperature sensor
18 Heat exchanger temperature sensor
19 Flow temperature sensor
20 Flue gas temperature sensor
21 Valve proving system (VPS)
22 Gas pressure switch (GPS)
23 Fan PWM signal
12 Technical specifications
84
7734324 - v.03 - 29092020