Worcester 440CDi Instruction Manual page 16

5: VENTING
COMPARTMENTS
B
2250mm
2250m
14
BOILER LOCATION & CLEARANCES
4: AIRING CUPBOARD
CLEARANCES
625mm
25mm
100mm
25mm
C
D
6 0 0 m m
1
1
2
2
6 0 0 m m
1 1
m
2
2
600mm radius
800mm
200mm
100mm
750mm
2250mm
750mm
2250mm
INSTALLATION & SERVICING INSTRUCTIONS
BOILER LOCATION &
CLEARANCES
4: AIRING CUPBOARD CLEARANCES:
Diagram 'd' opposite shows the minimum
space required to install and service the boiler
within an airing cupboard.
5: VENTING COMPARTMENTS:
If the clearances are less than those stated
for options '3' & '4' (above) then ventilation
must be provided as described in BS 5440.
A minimum of 2 air vents (C) of equal size must
be fitted, one at low level and another at high
level on the same wall using the same air for
circulation.
Minimum free area required for venting:
For area directly from outside:
2
440CDi 155cm per vent.
2
550CDi 220cm per vent.
For air from internal space/room:
440CDi 310cm 2 per vent.
2
550CDi 440cm per vent.
6: 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 RCD (Residual Current Device)
protection may be required.
Refer to the latest IEE wiring regulations.
8 716 115 219b (09.2008)