58
DIVERTER VALVE BODY ASSEMBLY REPLACEMENT
To remove the valve body assembly:
1. Refer to Frame 40.
2. Drain the boiler. Refer to frame 53.
3. Remove the condensate trap/siphon. Refer to Frame 49.
4. Remove the electrical plug. Refer to Frame 48.
5. Place a at bladed screwdriver in the motor slot provided
and ease out the motor Refer to Frame 48.
6. Remove the return thermistor electrical connection. Refer to
Frame 69.
7. Remove the pump electrical connection. Refer to Frame 60
no. 3.
8. Remove DHW Turbine electrical connection. Refer to
Frame 54 no. 3.
9. Remove the DHW plate
heat exchanger. Refer to
Frame 59.
10. Undo the safety valve pipe
compression tting. See
No.5 Frame 56.
11. Remove the compression
tting above the pump and
rotate the pipe.
12. If required remove
expansion vessel
connection hose. Refer to
Frame 66, no. 8.
13. Remove the DHW inlet and CH return connection situated
beneath the boiler.
14. Remove the three torx head screws xing 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 xing screws and
withdraw the diverter valve body assembly.
18. Fit the new diverter valve body assemble and replace the
two xing screws.
19. Ret the DHW manifold, t the assembly back to the boiler
and reassemble in reverse order.
19. Rell the boiler. Check operation of the boiler. Refer to
Frames 29 & 30.
1. Refer to Frame 40.
2. Drain the boiler. Refer to frame 53.
3. Remove the condensate siphon. Refer to Frame 49.
4. Remove the two plate heat exchanger xing screws.
5. Slide the plate heat exchanger to the left and push the
plate back to disengage.
6. Remove the plate heat exchanger.
7. Fit the new plate heat exchanger using the new ‘O’
rings provided and re-assemble in reverse order.
8. Rell the boiler.
9. Check operation of the boiler. Refer to Frames 29 & 30.
59
DHW PLATE HEAT EXCHANGER REPLACEMENT
4
14
11
12
13
16
17
18
SERVICING
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