
Installation Instructions I 5
Part no. 8736200348 Bosch 8300iW External Boiler Casing Installation Instructions
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Step by step instructions
Locate fixing noggins behind
the casing back panel indicated
by the shaded area.
The back panel must be installed
onto a fixed, rigid surface at least
the same size as the boiler and
capable of supporting the boiler
weight.
Hang the back panel to a
structural wall. Position the
back panel using a single screw
in the central top key hole.
Position the Bosch boiler hanging
bracket to the casing back panel
as shown.
Be sure to level the two brackets
prior to fixing to wall.
Fix to wall using appropriate
mechanical fixers at multiple
points as shown.
Don't screw the screws in fully.
Bosch boiler fixing points will line up
with the back panel fixing points
Screw in bottom two screws loosely,
and hang the boiler manifold
from these points.
Once boiler manifold is hung,
secure the screws.
Then tighten the top of the
boiler bracket fixings.
155mm
770mm
260mm
90mm