14. Flow switch
Drain boiler as in step 12. Disconnect the
electrical plug, turn the top cover anti-
clockwise, remove the O-ring and the
brass piston. Reassemble in reverse order.
17. Heat exchanger
Carry out steps 1 and 2 as above. Drain
boiler as in step 12. Remove the 2 clips
E
located on return and flow pipes and pull
them downwards. Pull the main exchanger
toward you to remove. Reassemble in
reverse order.
18. Pump
Drain boiler as in step 12. Pivot the electi-
cal box downwards. Open the electrical
box cover removing the 2 screws. Remove
the pump plug from the power board and
earth plug from earth socket. Unscrew the
nut F of the return pipe from the volute.
Remove the clip
G on the pump volute and
pull pump toward you. Reassemble in
reverse order.
19. Pressure relief valve
The pressure relief valve can be serviced
from the front of the appliance. Drain the
boiler first, undo the retaining screw and
pull out the valve.Reassemble in reverse
order.
20. Thermistor
Drain the boiler as step 12. Disconnect the plug, remove the retaining clip pull the
thermistor out. Reassemble in reverse order.
37 = Heating thermistor
21. Safety thermostat
Remove the casing as step 1 and hinge down the electrical box as step 5.
Disconnect the 2 cables, pull out the sensor with the clip
13. Reassemble in reverse
order.
22. Spark generator
Carry out steps 1, 2, and open the electrical box cover as mentionned in step 5.
Undo the 4 screws of the electrical rear panel and remove it. Unplug electrodes
wires, remove the ignitor connector from the PCB, remove earth plug from earth
socket. Hang out the ignitor. Reassemble in reverse order.
23. Power board
Carry out steps 1, 2, and open the electrical box cover as mentionned in step 5.
Undo the 4 screws of the electrical rear panel and remove it. Unplug all cables from
the PCB, remove earth plug from earth socket. Hang out the power board.
Reassemble in reverse order.
24. Control board
Pull out plastic knob from the front panel and proceed as step 23. Reassemble in
reverse order.
25. Expansion vessel
Remove the casing as step 1 and drain the boiler as step 12 above. Unscrew the
connecting tails nuts and lift out the boiler from the wall. Place it on a side on the
floor. Remove the expansion vessel bracket retaining screws, disconnect the pipe
from the vessel and pull ti toward you. Reassemble in reverse order.
E
13
37
7
F
G
Содержание BRITONY System II 100
Страница 11: ...Notes ...