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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
118


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