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26
1.
Set parameter
"Unbalan. Flow"
according to the
actual differential (observe prefix).
Total of all actual air flow rates
■
Supply air side
>
extract air side:
Set a value between
–
100 and
–
1 m
3
/h.
■
Supply air side
<
extract air side:
Set a value between 1 and 100 m
3
/h.
"Vitovent 300-W" operating instructions
2.
Recheck the air flow rates (see page 24). Compare
the totals for the supply air and extract air side.
Rebalance the air flow rates again if required.
Example:
Actual air flow rates
Supply air side: 176 m
3
/h
Extract air side: 154 m
3
/h
Differential:
22 m
3
/h (
≙
12.5 %)
Required setting
■
Set
"Unbalan. Flow"
to
"
–
22"
.
"Vitovent 300-W" operating instructions
Shutting down the ventilation unit
When working on an open appliance:
Danger
Contact with 'live' components can lead to seri-
ous injury from electric current.
Prior to working on the appliance
pull out the
mains plug and prevent accidental reconnec-
tion
.
Opening the appliance
Fig. 27
Commissioning, inspection, maintenance
Balancing the air flow rates on the supply air…
(cont.)
5793 605 GB