Baxi Bermuda 45/4 M Installation And Servicing Instructions page 14

INSTALLATION - Page 14
Siting the Boiler
The fireplace and builders opening should be as described
under 'site requirements' and be clean, sound and level.
The flue should be installed as described under 'site
requirements'.
Locate the centre line of the opening and hearth.
Hold the boiler by its combustion box at either side of the
heat exchanger, lift from the packing base and place into the
opening.
Align the boiler centrally using the "V" mark on the front
centre of the appliance base.
The appliance positioning into the opening is variable to
cater for pipe/flue alignment.
The boiler may be positioned by locating the front face of the
fireplace anywhere between the two "V" marks on either side
of the appliance base.
Securing The Boiler
Check the alignment within the opening is correct. The
hearth should be drilled as follows:
Mark the hearth through the two holes in the base. Remove
the boiler and drill the hearth. Insert suitable plugs. Replace
the boiler.
or
Drill directly through the two fixing holes and insert the plugs.
Secure the boiler with two suitable screws.