Ventilation; Gas Supply; Electrical Supply - Baxi Bermuda Inset 2 Boiler 50/4 Installation And Servicing Manual

4.0 Site Requirements - Page 11

4.6 Ventilation

1. Ventilation air supply to BS 5440 Pt 2 is required. The
permanent ventilation area size requirements are as shown:
2 2
80.1cm (12.42in )
2. The permanent vent may be directly into the room
containing the appliance. The vent may also be sited in
another (not a bedroom, toilet, bathroom or kitchen) room
provided an interconnecting vent is used.
3. The vent must not be installed inside the builders
opening. The vent should be sited following good practise for
a habitable room. We recommend the use of the Stadium
BM720 "Black Hole" ventilator which is available from your
local merchant.
4.7 Gas Supply (Fig. 6)
1. The gas installation should be in accordance with BS
6891. The connection at the appliance is Rc ½ (½ in BSPT
internal) located at the rear of the gas cock.
2. Ensure the pipework from the meter to the appliance is of
adequate size. It is necessary to route the gas supply pipe to
the right hand side of the builders opening. It must be routed
so as not to restrict the installation and servicing of the
appliance.
4.8 Electrical Supply (Fig. 7)
1. External wiring must be correctly earthed, polarised and
in accordance with current lEE wiring regulations. The mains
supply is 230V ~ 50Hz fused at 3A A permanent live
supply is required for Deluxe Model Firefronts.
NOTE: The method of connection to the electrical
supply must facilitate complete electrical isolation of the
appliance. Connection may be made via a fused double
pole isolator with a contact separation of at least 3mm
on all poles and serve the appliance and system
controls only.
2
2. The cable within the builders opening should be 0.75mm
to IEC 53 code 227 (heat resistant).
3. It is preferable to route the electrical supply cable to the
left hand side of the builders opening. If however it must
come from the right hand side it must be routed via the clips
provided and not restrict the servicing of the appliance (Fig.
6).
4. The cable must be routed to avoid contact with the metal
combustion box and hood.
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