61
Installation and Servicing
SECTION 3 - SERVICING
3.27 PUMP AUTO AIR VENT REPLACEMENT
1. Refer to Sections 3.2 & 3.3.
2. Close the isolating service valves and drain the (CH)
boiler. Refer to Section 3.24.
3. Remove the burner & Fan assembly, if required for
access. Refer to Section 3.4.
4. The auto air vent is retained in the pump body with a
bayonet connection. The air vent and float assembly
is removed by turning the head anti-clockwise (viewed
from above) and pulling upwards.
5. Ensure the air vent head o ring seal is in place when
refitting and the seal is in place at the pump outlet
connection.
6. Reassemble in reverse order.
7.
Refill the CH system. Refer to Section 2.15.
8. Loosen the cap of the air vent.
9. Check the operation of the boiler. Refer to Sections 2.24
to 2.27.
4
3.28 DIVERTER VALVE BODY ASSEMBLY REPLACEMENT
11
12
13
16
18
17
14
T
o remove the valve body assembly:
1.
Refer to Sections 3.2 & 3.3.
2. Drain the boiler. Refer to Section 3.24.
3. Remove the condensate trap/siphon. Refer to Section 3.20.
4. Remove the electrical plug from the diverter valve actuator.
Refer to Section 3.19.
5. Place a flat bladed screwdriver in the diverter valve motor
body slot provided and ease out the motor. Refer to Section
3.19.
6. Remove the return thermistor electrical connection. Refer to
Section 3.14.
7. Remove the pump electrical connections. Refer to Section
3.30.
8. Remove DHW Turbine electrical connection. Refer to
Section 3.23.
9. Remove the DHW plate heat exchanger (note orientation).
Refer to Section 3.29.
10. Undo the safety valve pipe. Refer to Section 3.26.
11. Loosen the nut above pump and remove the clip at the heat
exchanger end of the return pipe. Remove the return pipe.
12. Unclip and pull out the expansion vessel connection hose
from the expansion vessel. Refer to Section 3.35.
13. Remove the DHW inlet and CH return connection situated
beneath the boiler.
14. Remove the four 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 assembly and replace the
two fixing screws.
19. Refit the DHW manifold, fit the assembly back to the boiler
and reassemble in reverse order.
20. Refill the boiler.
21.
Check the operation of the boiler. Refer to Sections 2.24 to
2.27.
SER
VICING
Summary of Contents for VOGUE COMBI GEN2 C26
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