IDEAL EVOMOD 250, Установка и обслуживание

Страница: 47 / 62

NB. Ignore items 5 and 6 for slave modules
1.
Refer to Frame 40.
2.
Remove the module front cover (refer to Frame 44).
3.
Remove the right hand side panel (refer to Frame 15).
4.
Isolate the water circuit and drain boiler.
5.
Disconnect all ‘plug in’ connections to the junction box.
6. Slacken the mains wiring box fixing screw and swing the
box down.
7.
Remove the fan assembly (Refer to Frame 45).
8.
Remove the burner assembly (Refer to Frame 46).
9. Remove the single fixing bolt at the module water flow and
return connections and unscrew the union connections.
10. Remove the two fixing bolts at the gas connections and
unscrew the gas union connections.
11.
Pull the gas pipe forwards to remove.
12. Remove the water pressure switch and flow and return
thermistor electrical connections (Refer to Frames 56 &
57).
13.
Disconnect and remove the heat exchanger condensate
debris collector (Refer to Frame 48).
14.
Remove the two screws retaining the central frame infill
panel and remove panel.
15.
Pull the heat exchanger unit forwards and lift off from the
support pins (the unit is heavy therefore ensure the safe
handling instructions contained on page 4 are followed).
16. Remove flow & return headers and fit to new heat
exchanger.
17.
Remove the water pressure switch and the return
thermistor and fit to new heat exchanger.
18.
Re-assemble in reverse order.
19. Re-fill the system ensuring all the air in the boiler is vented.
20. Refer to Frame 39 for final safety checks.
65 HEAT EXCHANGER REPLACEMENT (MASTER & SLAVE MODULES)
5 6
10
14
15
9
SER
VICING
47
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Installation & Servicing
SERVICING