When making final connection to the boiler, if using soldered fittings, extra care should
be taken to avoid damage to isolation valves through heat transfer.
Before connection check the supply of local gas.
NOTE:
Ensure the gas supply pipe work is adequately sized so that a 20 mbar gas pressure is
available at the boiler inlet at full flow rate.
• Tighten all connections.
• Check the gas connection with leak indicator spray for leakage.
The gas supply can be connected from below, or through the wall at the rear of the boiler. See
fig 4.5. and refer to section 3.4.
The whole of the gas installation, including the meter, should be inspected, tested for soundness
and purged in accordance with the current issue of BS6891 and in IE the current edition of
I.S.813 “Domestic Gas Installations”.
Fig. 4.5 Gas and condense connections
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