SERVICING
47
IMAX XTRA -
Installation & Servicing
63 WATER PRESSURE SWITCH REPLACEMENT
1.
Refer to Frame 49.
2.
Remove the jacket front, control fascia, top
and side panel. (Refer to Frame 52).
3.
Isolate water circuit and drain boiler.
4.
Pull off the electrical connections (no
polarity) from the pressure switch.
5.
Unscrew the water pressure switch
6.
Fit the new water pressure switch.
7.
Re-assemble in reverse order.
8.
Re-fill the system ensuring all the air in the
heat exchanger is vented.
9.
Refer to Frame 49 for final safety checks.
4
A
64 FLOW / RETURN / HEAT EXCHANGER / FLUE THERMISTOR REPLACEMENT
1.
Refer to Frame 49.
2.
Remove the jacket panels as appropriate.
(Refer to Frame 52).
3.
Isolate water circuit and drain boiler.
4.
Pull off the electrical connections from the
thermistor.
5.
Unscrew the thermistor.
6.
Fit the new thermistor with built in ‘O‘ ring
seal. Do not overtighten.
7.
Re-assemble in reverse order.
8.
Refill the system ensuring all the air in the
heat exchanger is vented.
9.
Refer to Frame 49 for final safety checks.
4
5
Heat Exchanger Thermistor Shown
Return thermistor
SER
VICING
