Duct System (Flat) Metal: Pre-Selecting The Supply/ Extract Air Apertures - Viessmann Vitovent 300 Service Instructions For Contractors

Commissioning, inspection, maintenance
Further details regarding the individual steps
Setting ranges (variable):
Vitovent 300 for max. air flow
rate
Reduced ventilation
Standard ventilation
Higher ventilation
Note
■ The actual air flow rates that the
Vitovent can achieve are subject to the
pressure drop of the duct system and
that of the filters (filter class).
■ The speed of both fans is automati-
cally adapted to maintain the selected
air flow rate irrespective of the level of
filter contamination.
Duct system (flat) metal: Pre-selecting the supply/extract air
apertures
You will need the following design
details:
■ Pressure drop for the section
■ Air flow rates for the section
Supply air valve for setting into a wall (DN 100)
Max. flow rate: 30 m
10
m
m
m
m
2 0
3
/h
3 180
/h
3 50 to 170
/h
3 50 to 175
/h
50 to 180
3
/h
These details enable the determination
and pre-selection of the required aper-
ture sizes for the supply air and extract
air apertures using the relevant dia-
grams.
(cont.)
300
50 to 290 50 to 390
50 to 295 50 to 395
50 to 300 50 to 400
400