IDEAL Logic+ Combi 24 Installation And Servicing page 53

62 PUMP AUTOMATIC AIR VENT REPLACEMENT
1. Refer to Frame 45.
2. Drain the boiler. Refer to frame 59.
3. Remove the expansion vessel. Refer to Frame 71.
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 61
(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
float 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 refitting and the
new 'o' ring is fitted to the return pipe top connection.
7. Ensure the air vent cap is loose.
8. Refill 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-
36.
63 DHW FILTER & DHW FLOW REGULATOR CLEANING / REPLACEMENT
1. Refer to Frame 45.
2. Drain the DHW system. Refer to Frame 59.
3. Turn the housing anti clockwise and pull
forward to remove the cartridge.
4. Using a pair of pliers, pull out the plastic
filter/flow regulator.
5. Clean or replace filter as necessary.
6. Reassemble in reverse order.
7. Refill the boiler.
8. Check operation of the boiler. Refer to
Frames 32-36.
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Ideal Logic Combi -
SERVICING
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Installation and Servicing
3
5
53