Worcester 25/32 - Page 65

GENERAL INFORMATION
GREENSTAR CAMRAY KITCHEN 12/18 - 18/25 - 25/32
8 716 113 001a (01.07)
6
GENERAL INFORMATION
If a cupboard or compartment which is to be
used for storage or airing is built around the
appliance after installation there must be a
non-combustible partition around the boiler.
Further information can be found in BS 5410
which also describes venting requirements.
Venting compartments:
4 Ventilation must be provided for boilers fitted
into compartments as described in BS 5410
4 A minimum of 2 air vents must be fitted, one
at low level and another at high level onto
the same wall using the same air for
circulation.
4 Combustion air must not be taken from a
room or internal space containing a bath or
shower and must not communicate with a
protected area such as a hall, stairway,
landing, corridor, lobby, shaft etc.
4 Air vents must allow access for clean free air
and must be sited to comply with the flue
terminal position requirements.
4 Air ducting runs must not exceed 3m.
4 Low level air vents must be less than
450mm from the floor.
4 A warning label must be added to the vents
with a statement to the effect: ''Do not block
this vent. Do not use for storage”.
MINIMUM AIR VENT AREA (cm
2
) FOR
APPLIANCES INSTALLED IN A COMPARTMENT:
1
Internal air to and from a space/room inside the building.
2
External air to and from directly outside the building.
Conventional flue:
Room Sealed flue:
Model
12/18
18/25
25/32
Model
12/18
18/25
25/32
Internal
1
ventilation External
2
ventilation
High
Level
Low
Level
High
Level
Low
Level
Internal
1
ventilation External
2
ventilation
High
Level
Low
Level
High
Level
Low
Level
143
215
72 143
220
330 110 220
275
413 138 275
143
143 72 72
220
220 110 110
2
7
5
2
7
5
1
38
1
38
INTRODUCTION