Site Location And Preparation; Site Location; Gas Supply - Hamworthy S150 Installation Manual

4.0 SITE LOCATION AND PREPARATION

4.1 SITE LOCATION.

The floor or plinth for the boilers must be both flat and level to ensure correct alignment of
fittings and connections.
The floor or plinth must be sufficiently strong to support the weight of both the boilers.
The floor or plinth must be fireproof in accordance with BS 6644.
The plant room must have sufficient space for installation of boilers, pipework, pumps
controls, flues ventilation, access and servicing and other items of plant.

4.2 GAS SUPPLY.

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Gas supply pipes must be in accordance with BS 6891 or IGE/UP/2.
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Gas connections to the burner must be sized correctly. See burner manufacturer's
literature to correctly size.
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Gas installation must be soundness tested to BS 6891 or IGE/UP/1 & IGE/UP/1A.
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Gas installation must be purged to BS 6891 or IGE/UP/1 & IGE/UP/1A.
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Inlet gas pressure to boiler nominal 20mbar (minimum 17.5mbar) dynamic.
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Gas Supply Pipes should be suitable for an upstream pressure of 50mbar max. for
Natural Gas.
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Boiler house gas isolation valve must be clearly identified and installed close to the
entrance / exit.
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