Keston System s30, Инструкции по установке и обслуживанию

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Installation and Servicing
SECTION 3 - SERVICING
3.22 PUMP AUTOMATIC AIR VENT REPLACEMENT
1. Refer to Section 3.8.
2. Drain the boiler. Refer to Section 3.19.
3. Remove the expansion vessel. Refer to Section 3.27.
4.
Firstly, increase access area by disconnecting the 22mm pipe connection
at top of pump chamber and bottom of heat exchanger and remove pipe.
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 Section 2.13. Check for leaks around the new air
vent joint.
9. Check the operation of the boiler. Refer to Sections 2.22 & 2.23.
5
Dust Cap
3
4
1. Refer to Section 3.8.
2. Drain the heating system. Refer to Section 3.19.
3.
Remove the boiler front (See Section 3.2), lower the control panel and remove
the control box cover.
4. Ensuring there is no pressure in the system unclip the C clip from the flow
manifold port and remove the capillary connection together with ‘o’ ring.
5. Releasing the two retaining clips on the pressure gauge ease the pressure
gauge through the front of the control panel.
6. Fit the new pressure gauge from the front of the control panel ensuring correct
orientation. Locate push fit connection into port ensuring ‘o’ ring in place and
secure with the C clip.
7. Refill the boiler. Refer to Section 2.13.
8. Check the operation of the boiler. Refer to Sections 2.22 & 2.23.
3.20 PRESSURE GAUGE REPLACEMENT
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4
3.21 SAFETY RELIEF VALVE REPLACEMENT
1. Refer to Section 3.8.
2. Drain the boiler. Refer to Section 3.19.
3. Remove the clip on return thermistor. Refer to Section 3.12.
4. Pull out and remove the clip (positioned behind the safety
valve) retaining the safety valve.
5. Undo the safety valve pipe compression fitting positioned
outside the boiler casing.
6. Lift out the safety valve/pipe assembly.
7. Remove the safety valve pipe and transfer to the new
safety valve.
8. Reassemble in reverse order ensuring the retaining clip is
correctly fitted, the pipe compression fitting retightened and
return thermistor is re-clipped.
9. Refill the boiler. Check operation of the boiler. Refer to
Sections 2.22 & 2.23.
SER
VICING