Keston Combi 30, Инструкции по установке и обслуживанию

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49
SERVICING
Keston Combi -
Installation and Servicing
1. Refer to Frame 45.
2. Drain the heating system. Refer to Frame
65.
3. Unscrew the pressure gauge and discard.
4. Fit new pressure gauge, using suitable
jointing compound.
5. Refill the boiler. Refer to Frame 22.
6. Check operation of the boiler. Refer to
Frame 36.
61 pREssURE gAUgE RENEWAL
60 DRAININg ThE BOILER
DOMEsTIC hOT WATER CIRCUIT
1.
Refer to Frame 45.
2. Close all the DHW water isolating valves on the boiler inlet.
3. To drain the domestic hot water circuit: As there is no direct
drain for the domestic hot water circuit, depending on the
location of the boiler, opening the lowest hot water tap
may drain this circuit. However it must be noted that some
residual water will be experienced during replacement of
components.
4. After replacing any component on the boiler, close tap, close
the drain valve and open all system isolating valves (re-
pressurise as appropriate by re-connecting the filling loop,
refer to Frame 22) before proceeding to check operation of
the boiler.
5. Disconnect filling loop. Refer to Frame 22.
6. Check operation of the boiler. Refer to Frame 36.
3G9690
3G9690
3G9690
CENTRAL hEATINg CIRCUIT
1.
Refer to Frame 45.
2. Close all the CH water isolating valves on the boiler inlet.
3. To drain the primary heat exchanger circuit: Open the drain
valve and attach a length of hose to the CH drain point.
4. After replacing any component on the boiler, remove the
hose, close the drain valve and open all system isolating
valves (re-pressurise as appropriate by re-connecting the
filling loop, refer to Frame 22) before proceeding to check
operation of the boiler.
5. Disconnect filling loop. Refer to Frame 22.
6. Check operation of the boiler. Refer to Frames 36.
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