Technical data

7.0 Site Requirements
13
7.5 Location
1. The boiler may be fitted to any suitable internal
or external wall. It is primarily intended for use
with a twin flue system using separate horizontal
terminals. It may also be fitted with a vertical twin
flue system connected to a single vertical
terminal. The terminal(s) must pass through an
outside roof (vertical) or wall (separate
horizontal), discharging to atmosphere in a
position permitting satisfactory removal of
combustion products and providing an adequate
air supply. The boiler should be fitted within the
building unless otherwise protected by a suitable
enclosure i.e. garage or outhouse. (The boiler
may be fitted inside a cupboard-see Section 7.4).
2. If the boiler is sited in an unheated enclosure
then it is recommended to leave the ON/OFF
Selector Switch in the domestic hot water and
central heating position to give frost protection.
3. If the boiler is fitted in a room containing a bath
or shower reference must be made to the current
I.E.E. W
IRING REGULATIONS and BUILDING
REGULATIONS. If the boiler is to be fitted into a
building of timber frame construction then
reference must be made to the current edition of
Institute of Gas Engineers Publication IGE/UP/7
(Gas Installations in Timber Framed Housing).
4. Separate terminals may be located on the
same or different walls as required, but they must
not be on opposing walls. For example if one
terminal is on a north facing wall the other
terminal may be on the west, east or north wall
but not the south (Fig. 9).
7.6 Gas Supply
1. The gas installation should be in accordance
with BS6891.
2. The connection to the appliance is a 22mm
copper tail located at the rear of the gas service
cock (Fig. 10).
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).
7.7 Electrical Supply
1. External wiring must be correctly earthed,
polarised and in accordance with current I.E.E.
W
IRING REGULATIONS.
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. 10
Gas Service Cock
Fig. 9
Plan view of boiler showing
acceptable terminal locations