Boiler Location & Clearances - Worcester GREENSTAR UTILITY 32/50 Instruction Manual

8 716 109 711 b 07.10 14/7/10
a: RECOMMENDED
b: ANNUAL SERVICE CLEARANCES
c: MAINTENANCE & REPAIR
MINIMUM AIR VENT AREA (cm
1 Internal air to and from a space/room inside the building. 2 External air to and from directly outside the building.
Conventional flue:*
Internal 1 ventilation
High Low
Model Level Level
32/50 495 743
50/70 715 1073
14
BOILER LOCATION & CLEARANCES
09:59 Page 14
IN STALLATION C LEARANC E S
720mm
1415mm
300mm
100mm
100mm
600mm
720mm
1415mm
300mm
10mm
10mm
600mm
CLEARANCES
720mm
1415mm
300mm
10mm
600mm
2
) FOR APPLIANCES INSTALLED IN A COMPARTMENT:
Room Sealed flue:*
External 2 ventilation Internal 1 ventilation
High Low High
Level Level Model Level
248 495
32/50 495
358 715 50/70 715
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR UTILITY 32/50 & 50/708 716
BOILER LOCATION &
CLEARANCES
• This boiler is only suitable for installing
• The boiler must be installed on a flat level
• The boiler is not suitable for external
• The boiler is not suitable for roof space
Open flue model (CF):
• In order to ensure clean and efficient
• To provide sufficient air a suitable inlet must
An air brick or other form of continuous air
supply may have to be built into the installation
in order to ensure an adequate supply of air.
• If the appliance is to be installed in a confined
• Where the air is taken from another room that
Room sealed balanced flue model (RS):
The appliance does not require a separate vent
for combustion air.
• Installation in cupboards or compartments
• Both vents must pass to the same room or be
10mm
The minimum air vent free area is given in the
table opposite.
a: INSTALLATION CLEARANCES:
Diagram ( a ) shows the minimum space
recommended to install the boiler only.
b: SERVICE CLEARANCES:
Diagram ( b ) shows the minimum space
required to carry out an annual service.
c: MAINTENANCE & REPAIR CLEARANCES:
The appliance is suitable for an under worktop
installation providing that the worktop above the
External 2 ventilation
boiler (min 10mm clearance) is removable for
Low High Low maintenance and repair and the front of the
boiler is not enclosed.
Level Level Level
* Due to changes to BS 5410 and modern
248 248
495
building design, these figures no longer
715 358 358
incorporate the adventitious ventilation allowance.
internally within a property at a suitable
location onto a fixed rigid surface of the same
size as the boiler and capable of supporting
the boiler weight.
surface to ensure condensate does not enter
the primary heat exchanger.
installation unless a suitable enclosure is
provided.
installations.
combustion an adequate supply of air must
be delivered to the combustion chamber.
be provided into the room or space in which
the boiler is situated.
CF minimum air inlet sizes*
Output 32/50kW 50/70kW
248 358
Size cm 2
space or compartment two air vents are
required, one at high level and one at low level.
The minimum free area of each vent is
shown opposite and depends whether the
air is taken from another room or from
outside the building.
room must contain an air inlet as described
above.
require permanent vents for cooling purposes,
one at high level and one at low level, either
direct to outside air or to a room.
on the same wall to the outside air.
109 711B 07.2010