Installation guide

31
Electrical diagram of boiler PROTHERM 20 (30, 40, 50) KLZ
Fig. 11
Combustion gas thermostat
G
as valve Honeywell
Emergency thermostat
Power cable
blue
Control panel
blue
blue
black
black
black
blue
blue
black
black
red
red
grey
grey
blue
brown
Yellow/ green
Yellow/ green
Yellow/ green
Yellow/ green
Main switch
Automatic ignition S4565 AM chimney 10V-IP 44
Ignition
electrode
Ionising
electrode
Reset
button
Heating
circuit pump
Tank pump
Timer switch for setting attenuation
Heating water sensor
Room control unit
Outdoor sensor
Hot water sensor
Control board
Chimney valve (turbo superstructure)
Outdoor sensor