59
1. Refer to Frame 43.
2. Drain the boiler. Refer to Frame 57.
3. Remove the condensate trap/siphon. Refer to Frame 53.
4. Remove expansion vessel. Refer to Frame 69.
5. Disconnect the electrical connection from the return
thermistor.
6. Disconnect the 22mm pipe connection at the rear of the
pump outlet.
7. Pull off the clip retaining the pipe to the heat exchanger
swing the pipe to clear the pump and remove pipe.
8. Undo the safety valve union connection.
9. Withdraw the clip securing the safety valve.
10. Lift safety valve from boiler.
11.
Fit the new safety valve and reassemble in reverse order
ensuring the new ‘o’ ring is tted to the top of the return pipe.
12. Rell boiler. Refer to Frame 24. Check operation of boiler.
Refer to Frames 32 & 33.
60
1. Refer to Frame 43.
2. Drain the boiler. Refer to Frame 57.
3. Remove the expansion vessel. Refer to Frame 69.
4. Firstly, increase access area by disconnecting the 22mm pipe connection at
top of pump chamber and bottom of heat exchanger and remove pipe Refer to
Frame 59 (no’s 5,6 & 7).
5. The automatic air vent head is retained in the pump body with a bayonet
connection. The air vent head and oat assembly is removed by turning the
head anti-clockwise (viewed from above) and pulling upwards.
6. Reassembly is the reverse of the above. Ensure the air vent head ‘o’ ring seal
is in place when retting and the new ‘o’ ring is tted to the return pipe top
connection.
7. Ensure the air vent cap is loose.
8. Rell the boiler. Refer to Frame 24. Check for leaks around the new air vent
joint.
9. Check the operation of the boiler. Refer to Frames 32 & 33.
5
6
7
5
8
9
10
Dust Cap
61
1. Refer to Frame 43.
2. Drain the DHW system. Refer to Frame 57.
3. Turn the housing anti clockwise and pull
forward to remove the cartridge.
4. Using a pair of pliers, pull out the plastic
lter/ow regulator.
5. Clean or replace lter as necessary.
6. Reassemble in reverse order.
7. Rell the boiler.
8. Check operation of the boiler. Refer to
Frames 32 & 33.
3
4
To Next Page
Loading...
