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7.0 Site Requirements
16
7.3 Ventilation of Compartments
1. Where the appliance is installed in a cupboard or
compartment, no air vents are required as the appliance
will run sufficiently cool without ventilation.
7.4 Gas Supply
1. The gas installation should be in accordance with the
relevant standards. In GB this is BS 6891. In IE this is the
current edition of I.S. 813 “Domestic Gas Installations”.
2. The connection to the appliance is a 22mm copper tail
located at the rear of the gas service cock (Fig. 11).
3. Ensure that the pipework from the meter to the
appliance is of adequate size.
Do not use pipes of a
smaller diameter than the boiler gas connection
(22mm).
7.5 Electrical Supply
1. External wiring must be correctly earthed, polarised
and in accordance with the relevant regulations/rules. In
GB this is the current I.E.E. Wiring Regulations. In IE
reference should be made to the current edition of the
ETCI rules.
2. The mains supply is 230V ~ 50H
z
fused at 3A.
NOTE: The method of connection to the electricity
supply must facilitate complete electrical isolation of
the appliance.
Connection may be via a fused double-pole isolator
with a contact separation of at least 3mm in all
poles and servicing the boiler and system controls
only.
Fig. 11
Gas Service Cock