Boiler Location & Clearances - Worcester GREENSTAR 25Si Instruction Manual

Wall hung rsf gas fired condensing combination boiler
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SERVICING CLEARANCES
VENTED COMPARTMENT
Using 100mm flue kit
1080mm
Using 125mm flue kit
1450mm
- 1110mm
VENTILATION FREE COMPARTMENTS
INSTALLATION CLEARANCES
Ventilation Free Compartment Installation Clearances
The suggested total unventilated compartment minimum clearances are:
Side
400mm
170mm approx.
(30mm above
the elbow)
(Note: Top and bottom clearances must not be reduced below these values as they are the
minimum required for servicing).
If total side clearance is
reduced to:
**
350mm
300mm
250mm
200mm
150mm
100mm
50mm
If front clearance (to
removable door) is
reduced to:
50mm
25mm
14
BOILER LOCATION & CLEARANCES
930mm
5mm
25mm
to removable door
600mm
front clearance
for service
Above
Below
200mm
If Side Clearances are Reduced
Then overall height clearances
must be increased to (approx):
*
441mm
523mm
617mm
727mm
856mm
1012mm
1202mm
If Front Clearance is Reduced
Then overall height clearances
must be increased to (approx):
*
511mm
596mm
410mm
+ 30mm
above elbow
5mm
200mm
Front (to removable door)
100mm
Front clearance (to removable
OR
door) must be increased to:
129mm
161mm
200mm
243mm
295mm
358mm
434mm
Total side clearance must be
OR
increased to:
**
505mm
569mm
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 25Si/30Si
BOILER LOCATION &
CLEARANCES
This boiler is only suitable for installing internally
within a property at a suitable location onto a
fixed, rigid surface at least the same size as the
boiler and capable of supporting the boiler
weight.
COMPARTMENTS:
Follow the requirements of BS6798 and
BS5440 Part 2 and note:
• Minimum clearances must be maintained
• An access door is required to install, service
and maintain the boiler and any ancilliary
equipment.
• If fitting the boiler into an airing cupboard
use a non-combustible perforated material
(maximum hole sizes of 13mm) to separate
the boiler from the airing space.
BOILER CLEARANCES:
The diagram opposite shows the minimum
space required to install and service the boiler.
If a boiler is installed in a compartment with
clearances less than shown in the tables oppo-
site, ventilation is required. Refer to tables
below for ventilation requirements.
25 & 30 kW
Vent
To room or
position
internal space
High
Minimum free
2
level
area 122 cm
Low
Minimum free
2
level
area 122 cm
BOILER CLEARANCES - UNVENTILATED
COMPARTMENTS:
The tables opposite show the options for the
minimum space required to install and service
the boiler inside an unventilated compartment.
*
NOTE: These are the combined top & bottom
clearances excluding the appliance.
**
NOTE: These are the combined left & right
clearances excluding the appliance.
8 716 115 165a (06/2008)
Direct to
outside
Minimum
free area
2
61 cm
Minimum
free area
2
61cm

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