Viessmann VITODENS 100-W Installation And Service Instructions Manual page 10

Gas fired wall mounted condensing boiler natural gas version type wb1a

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Preparing for installation

An extra 87° elbow can be used but

this reduces the maximum permissi-

ble length by 1 m . An extra 45° elbow

can be used but this reduces the max-

imum permissible length by 0.5 m .

A Combined length of flue outlet/

ventilation pipe max 6m.

Concentric Vertical Flue System

The vertical flue kit (optional extra)

with extensions may be used for up

to10 m applications.

(cont.)

B Flue outlet/ventilation pipe (can

be shortened as necessary)

An extra 87° elbow can be used but

this reduces the maximum permissi-

ble length by 1 m. An extra 45° elbow

can be used but this reduces the max-

imum permissible length by 0.5 m.

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