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5773 597 - 04
Vitocrossal 200, CM2 400, 500 and 620 Installation
Boiler
Flex Hose Air Intake Adaptor
Note:
The combustion air intake adapter must be installed
before installing the boiler insulation (whether the
air for the combustion is drawn directly from the
outdoors or a Room Air Dependent combustion
system is used).
1.
Place the flex hose adaptor to the boiler frame
bracket.
2. Attach using two M8 bolts, nuts and washers.
1. Attach the flex hose
7
8 in. (200 mm) to the flex
hose adaptor and secure the flex hose to the flex
hose adaptor with the retaining clamp.
2. Secure the flex hose to the support bracket with
the retaining clamp.
Note:
Do not squeeze hose when securing it with
the retaining clamp.
Combustion Air Flex Hose