48
SERVICING
i-mini -
Installation and Servicing
1.
Refer to Frame 40.
2.
Drain the boiler. Refer to Frame 54.
3.
Remove condensate trap/siphon. Refer to Frame 50.
4.
Remove the diverter valve actuator. Refer to Frame 49.
5.
Remove the 2 allen screws securing the plate heat exchanger to the
composite housings.
6.
Manoeuvre the plate heat exchanger out of the top LH or centre of the
controls area. Be aware of any water spillage.
7.
Fit the new plate heat exchanger, using the new o-rings supplied.
note.
Ensure that the depressions are on the bottom prior to fitting.
8.
Reassemble in reverse order.
9.
Refill the boiler.
10.
Check operation of the boiler. Refer to Frames 29 & 30.
60 dHW PlAte HeAt exCHAnGeR RePlACeMent
61 PUMP HeAd RePlACeMent
1.
Refer to Frame 40.
2.
Drain the boiler. Refer to Frame 54.
3.
Disconnect the electrical lead from the pump.
4.
Remove the 4 Allen screws retaining the pump head.
5.
Remove the pump head.
6.
Fit the new pump head.
7.
Reassemble in reverse order.
8.
Refill the boiler.
9.
Check operation of the boiler. Refer to Frames 29 & 30.
62
DIVERTER VALVE BODY ASSEMBLY REPLACEMENT
T
o remove the valve body assembly:
1. Refer to Frame 40.
2. Drain the boiler. Refer to frame 54.
3. Remove the condensate trap/siphon. Refer to Frame 50.
4. Remove the electrical plug. Refer to Frame 49.
5.
Place a flat bladed screwdriver in the diverter valve motor
body slot provided and ease out the motor Refer to Frame 49.
6. Remove the return thermistor electrical connection. Refer to
Frame 44.
7. Remove the pump electrical connection. Refer to Frame 61 no. 3.
8. Remove DHW Turbine electrical connection. Refer to Frame 56 no. 3.
9. Remove the DHW plate heat exchanger (note orientation).
Refer to Frame 56.
10.
Undo the safety valve pipe compression fitting. See No.5 Frame 56.
11. Loosen the nut above pump and rotate the pipe.
12. If required remove expansion vessel connection hose.
Refer to Frame 66.
13. Remove the DHW inlet and CH return connection situated
beneath the boiler.
14. Remove the three torx head screws fixing the return
manifold to the boiler sheet steel base.
15. Lift the manifold assembly and remove from boiler.
16. Twist and remove the DHW manifold.
17. Remove the two diverter valve body fixing screws and
withdraw the diverter valve body assembly.
18. Fit the new diverter valve body assemble and replace the
two fixing screws.
19. Refit the DHW manifold, fit the assembly back to the boiler
and reassemble in reverse order.
19. Refill the boiler. Check operation of the boiler. Refer to
Frames 29 & 30.
14
11
12
13
16
18
17
5
3
4
S
ER
VICING
