9
*
On request extension cables can be delivered, so that
the gas train can be fitted on the opposite side to the
instrument panel, thermostat pocket and the flow.
8. GAS SUPPLY
8.1 General
The gas train can be fitted on the left or right hand side of
the boiler but as standard is always fitted on the same
side of the boiler instrument panel (fitted in the front
casing).*
The local Gas authority should be consulted to ensure
that an adequate pressure and supply is available at the
boilers maximum output. To minimise risk of sediment or
foreign particles entering the control valves, an approved
filter may be fitted into the pipe work downstream.
The gas supply should be conform to the British Gas
safety regulations.
8.2 Gas pressure
Maximum gas pressure at inlet 100 mbar.
Burner pressure:
- full load : 11.8 mbar (100%)
- part load (High/Low version only): 4.2 mbar (60%)
- injector size: 4.4 mm Ø.
Legend
CT
Control thermostat
HLT
High limit thermostat
H/LT High/Low thermostat
S
Plug
Connector
9.1 General
The electrical installation must conform to the IEE
regulations and also to local authority requirements.
9.2 Control panel
A control panel is fitted on the gas train.
9.3 Electrical connections
The boiler is pre-wired. Only the main supply should be
wired to this control panel.
9.4 Electrical data
Main supply: 240V - 50Hz (L/N).
Running current: 120 W.
Installed fuse: 6 Amp.
9.5 Wiring diagram for the instrument panel
9.5.1 Simple instrument panel
9. ELECTRICAL SUPPLY
Only
High/Low
Fig. 08 Wiring diagram for the simple instrument panel
