Technical data

INSTALLATION & SERVICING INSTRUCTIONS
NOTE: The boilers are factory set to give the maximum heat output.
4.0 BOILER LOCATION
The appliances are not suitable for external installation.
The boiler may be installed in any room, although particular attention is drawn to the requirements of
current IEE regulations and, in Scotland, the electrical provisions of the Building Standards applicable
in Scotland, with respect to the installation of a boiler in a room containing a bath or shower. Where a
room sealed boiler is installed in a room containing a bath or shower, any electrical switch or boiler
control utilising mains electricity should be so situated that it cannot be touched by a person using the
bath or shower.
The boiler is suitable for installation onto a combustible wall. If the boiler is to be fitted in a timber
framed building, it should be fitted in accordance with the British Gas Publication "Guide for Gas
Installations in Timber Framed Houses," reference DM2. If in doubt, advice may be sought from the
local Gas Region.
4.1 Installation in Cupboard or Compartment
A cupboard or compartment used to enclose the boiler should be designed and constructed
specifically for this purpose. An existing cupboard or compartment may be used provided that it is
modified for this purpose. Details of cupboard or compartment design are given in BS6798 1987.
These are room sealed appliances and therefore no air supply is required for combustion. However, if
the boiler is installed in a cupboard or compartment, permanent ventilation is required at high and low
level for cooling purposes, either direct from outside or from a room. Both high and low level air vents
should communicate with the same wall to outside air, or to the same room. Each vent should have a
free area of at least that given in the
Technical Data Section. Further details are given in BS5440 Part
2, 1989.
4.2 Boiler Clearances
The boiler position should be such that the following minimum clearances are provided for installation
and servicing:
Left and right hand side 6mm (1/4in)
Top of wallplate 75mm (3in)
Underside of wallplate 125mm (5in)
Front of wallplate 910mm (36in)
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