Baxi 124 Combi Installation And Service Manual page 17

Fig. 10
Zone 2
Zone 1
Zone 0
Window
Recess
Zone 2
Fig. A
Window Recess
Zone 2
Zone 1
Zone 2
Zone 0
Fig. B
© Baxi Heating UK Ltd 2017
Gas Service Cock
Window
Recess
Zone 2
0.6 m
In GB Only
Ceiling
Outside Zones
2.25 m
0.6 m
In GB Only
7.0 Site Requirement
7.4 Gas Supply
1. The gas installation should be in accordance with the
relevant standards. In GB this is BS 6891 (NG) or BS 5482
Pt. 1 (LPG). 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. 10).
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) UNLESS the stated gas
rate can be achieved with pipe of lesser diameter and with
all other gas appliances operating at maximum rate.
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 ~ 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.
7.6 Bath & Shower Rooms
1. Boilers fitted with optional plug-in integral timer, RFQ
receiver or thermostat CANNOT be fitted in any zone.
2. 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.
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