Technical data

INSTALLATION & SERVICING INSTRUCTIONS
Fig. 9 Function Flow Diagram.
Page 15
6.0 INSTALLATION PROCEDURE
Unpack the boiler. Remove control cover from base of boiler by sliding forward. Remove the main
casing locating screws (see
Figure 13). Remove casing by pulling forward.
Remove the boiler chassis from the wallplate by removing two wing nuts (B,
Figure 10) and
disengaging from the lower mounting brackets. Using the wallplate as a template, mark the position of
the hole for the air
duct. When positioning the wallplate, due account should be taken of the minimum clearances
required for servicing the boiler, as shown in Section 4.2, and check that the top of the wallplate is
horizontal.
Cut the air duct hole and make good any plasterwork and brickwork. Realign the wallplate to the air
duct hole, ensuring that the wallplate is level, and mark the four wallplate fixing holes (A,
Figure 10).
Drill and plug the four wallplate fixing holes to accept No. 10 x 50mm (2in) woodscrews. Fix the
wallplate to the wall, sealing the gap between the wall and wallplate with a suitable sealant.
Unpack the flue terminal and ducts, slide the telescopic ducts apart. Secure the inner flue duct and
then the inner air duct to the back of the boiler, using the seven screws provided (C,
Figure 11). Apply
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