15
7.0 Site Requirement
© Baxi Heating UK Ltd 2013
7.3
Ventilation of Compartments
1. Where the appliance is installed in a cupboard or
compartment, no air vents are required.
2. BS 5440: Part 2 refers to room sealed appliances
installed in compartments. 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. 7).
3. Ensure that the pipework from the meter to the
appliance is of adequate size, and the demands of any
other gas appliances in the property are taken into
consideration. 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 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 ETCI rules.
2. The mains supply is 230V ~ 50Hz 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.
3. When the system includes an indirect domestic hot
water cylinder it is recommended that a cylinder
thermostat is used in conjunction with a 3 port 2 position
valve or 2 port zone valve.
7.6
Bath & Shower Rooms
1. If the boiler is fitted in a room containing a bath or
shower and
NOT FITTED
with any optional integral timer
or thermostat, it can be fitted in zone 2, (Figs. A & B shows
zone dimensions for a bathtub. For other examples refer to
the Current I.E.E. Wiring Regulations) reference must be
made to the relevant requirements.
In GB this is the current I.E.E. Wiring Regulations and
Building Regulations.
In IE reference should be made to the current edition of I.S.
813 “Domestic Gas Installations” and the current ETCI
rules.
Fig. 7
Gas Service Cock
Zone 2
Zone 1
Zone 0
Zone 2
Zone 2
Window
Recess
Window
Recess
0.6 m
Ceiling
Outside Zones
Zone 2
Zone 1
Zone 0
2.25 m
Window Recess
Zone 2
0.6 m
Fig. A
Fig. B
In GB Only
In GB Only