Wall Mounting Template & Flue Openings - Worcester GREENSTAR 24i Junior Installation Instructions Manual

INSTALLATION
4.2 WALL MOUNTING TEMPLATE & FLUE OPENINGS
WARNING: BEFORE DRILLING:
ENSURE THAT THERE ARE NO PIPES,
ELECTRICAL CABLES, DAMP PROOF
COURSES OR OTHER HAZARDS .
SAFETY:
All relevant safety precautions must be undertaken.
Protective clothing, footwear, gloves and safety goggles
must be worn as appropriate.
FIXING THE WALL MOUNTING FRAME:
B The boiler wall mounting template shows the relative
positions of the flue and the top and bottom fixing of
the wall mounting frame.
1. Fix the wall mounting template to the wall in the
desired position.
2. Drill 4 holes for the wall mounting frame through the
template.
The wall mounting template has been sized
to allow for minimum clearances of 5mm
sides, 200mm base and 30mm above a
100mm diameter flue elbow.
REAR FLUE OUTLET
B The drawing opposite shows the boiler wall mounting
template with the flue centre lines of both the
100 mm and 125 mm flue systems.
3. Mark centre line of flue to be used (3); the external
diameter of the hole can also be marked if required.
B If a 100 mm diameter flue is to be used, a 125 mm
diameter hole is required. However, if using the
weather sealing collar by pushing it through from
inside the property, then a 150 mm diameter hole is
required to accommodate this.
B The flue turret of the 100 mm flue has an in-built 3°
angle.
B If extensions are to be added then the complete flue
must rise at an angle of 3°.
B Drill hole using a core drill or similar.
SIDE OUTLET:
4. Mark from the centre line of the wall mounting
template to the wall which the flue will pass through
(4).
B Allow for a rise of 52mm per metre length of flue, to
give a 3° angle.
B Clear any debris from the site.
An optional filling loop: 7 716 192 281 is
available to fill the system (not supplied
with the boiler).
26
4.
Fig. 21 Marking the flue position
6 720 644 741a (2010/10)
3.
1.
2.