SAFETY:
All relevant safety precautions must be undertaken.
Protective clothing, footwear, gloves and safety
goggles must be worn as appropriate.
FIXING THE MOUNTING FRAME:
• The boiler template shows the relative
positions of the flue and pipes to the boiler.
Also clearances around the appliance.
Fix the template to the wall in the desired
position ( A ).
Mark the clearance around the boiler and the
position of gas and system pipes ( 2 ) and
( 3 ).
Drill 4 holes for the wall mounting plate
through the template.
Drill 2 holes for bottom fixing screws.
Drill hole for flue duct through the wall.
NOTE: The template has been sized to allow for
minimum clearances of 5mm sides, 200mm
base and 30mm above a Ø100 flue elbow.
REAR FLUE OUTLET
• The drawing ( B ) opposite shows the boiler
template with the flue centre lines of both the
100mm and 125mm flue systems.
Mark centreline of flue to be used ( 1 ).
• If a Ø100mm diameter flue is to be used,
a125mm diameter hole is required. However, if
using the weather sealing collar by pushing it
through from inside the property, then a
150mm diameter hole is required to
accommodate this.
• The terminal section of the 100mm flue has an
inbuilt 3° angle.
If extensions are to be added then the complete
flue must rise at an angle of 3°.
• The 125mm Ø flue system will require the flue
to rise at an angle of 3°.
Drill hole using a core drill or similar.
SIDE OUTLET:
Mark from the centre line of the wall template
to the wall which the flue will pass through
( 4 ).
Allow for a rise of 52mm per metre length of
flue, to give a 3° angle.
Clear any debris from the site.
CAUTION: Ensure there are no pipes,
electric cables, damp proof courses or
other hazards before drilling.
X 6
X 6
10mm Ø
WALL MOUNTING PLATE
FLUE OPENING
127 mm
WALL MOUNTING PLATE FLUE OPENING
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR Ri
8 716 109 699a (05/05)
17
INSTALLATIONCOMMISSIONING
A
B
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