Technical data

1716
Airing cupboard clearances
The diagram below shows the minimum space required to
install and service the boiler within an airing cupboard.
Venting compartments
If the clearances are less than those stated for the options
above then ventilation must be provided as described in
BS 5440.
A minimum of 2 air vents (A) must be fitted, one at low
level and another at high level onto the same wall using the
same air for circulation.
Minimum free air required for venting:
•
For air directly from outside:
440CDi 155cm
2
per vent
550CDi 220cm
2
per vent
•
For air from internal space/room:
440CDi 310cm
2
per vent
550CDi 440cm
2
per vent
A
800mm
625mm
100mm
100mm
100mm
200mm
25mm
25mm
2,300mm
600mm
600mm
750mm
2,250mm
1
1
2
2
2,250mm
600mm
2,250mm
600mm radius
750mm
2,250mm
1
2
2
1
Boiler location & clearances
Bathrooms
IMPORTANT:
Any switch or appliance control using mains electricity must
not be within reach of a person using the bath or shower.
Electrical switches, fused spurs and socket outlets must not
be situated in the bathroom.
A boiler fitted with a non-mechanical timer or with no timer
can be installed in zone 2 or outside the shaded area.
A boiler with a mechanical timer or RF mechanical timer
with a room thermostat must only installed outside the
shaded area.
Additional Residual Current Device (RCD) protection may
be required.
Refer to the latest IEE wiring regulations.