Cable colors:
Components:
Controller connections:
1
Brown
A
Control
J2
Power connection for controller
2
Blue
B
Flame probe
J19
Extra error signal connection
3
Green
C
Hot surface igniter
J20
Gas control valve connection
4
Black
D
Gas control valve
J21
Program-controlled pump
connection
5
White
E
Burner earth connection
6
Grey/Beige
F
Extra ON mode switch
J29
Power connection for the fan
7
Green
G
Program-controlled pump
(max. 100W)
J36
Controller display connection
8
Yellow
J40
Regulator connection for the fan
H
Extra error signal connection
JP2
Flame probe and hot surface
igniter connection
Terminal strip connections:
J
Isolating transformer
A
Earth
K
Double-pole isolator
JP3
Temperature sensor T
2
connection
N
Neutral
L
Controller O/I switch
L
Live input of controller
M
Display
JP4
Dummy connection
L
1
Live input of isolating transformer
(primary side)
N
Fan
JP5
Temperature sensor
T
1
connection
O
Temperature sensor
(T
2
- bottom of tank)
L
2
Live output of isolating
transformer (secondary side)
JP6
Selection resistor and pressure
switch connection
P
Dummy
L
3
Live input of program-controlled
pump
Q
Temperature sensor
(T
2
- top of tank)
JP8
Extra ON mode switch
connection
R
Selection resistor
S
Push button
F1
Fuse (T 3.15A - 250 V)
T
Electrical anodes
F3
Fuse (T 3.15A - 250 V)
U
Signaling for electrical anodes
V
Potentiostat
W
Communication between the
appliance controller and the solar
system (BUS connection)
AA
Solar system controller
118
Installation, Maintenance and Service part
Summary of Contents for BFC-120
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Page 110: ...Fig Dimensions SGS 28 30 50 60 110 Installation Maintenance and Service part...
Page 112: ...Fig Dimensions SGS 80 100 120 112 Installation Maintenance and Service part...
Page 121: ...12 8 Declaration of conformity 0311753_SGS_28 120_II_UKUK_V2 0 2017 05 03 121...
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