Mechanical Ventilation With Vitovent 200-W/300-C/300-W - Viessmann VITOTRONIC 200 Service Instructions Manual

Mechanical ventilation with Vitovent 200-W/300-C/300-W

Controlled mechanical ventilation
Control of the air flow rate
Vitovent 200-W:
■
The ventilation unit regulates to a constant fan speed
in each ventilation level. The actual air flow rate of
the mechanical ventilation system is therefore
dependent on the pressure drop resulting from the
ductwork and the filters.
Vitovent 300-C/300-W:
■
The ventilation unit controls the fan speed so that a
consistent air flow rate is achieved for each ventila-
tion level. This means that the pressure drop of the
ductwork and filters does not affect the air flow rate.
Ventilation levels
Ventilation lev- Function/operating pro-
el gram
Communication interrupted
Ventilation unit switched off
"Standby mode"
0
"Economy mode"
1
"Standard operation"
"Holiday program"
"Ventilation program"
2
3
4
"Intensive operation"
Note
"Standard operation" is active automatically between
the time phases in the time program.
"Vitotronic 200" operating instructions
"Intensive operation" is limited to "Intensive ventila-
tion duration 7D1B".
The currently applicable ventilation level is either
specified via the operating status in the time program,
by the set operating program or by the selected func-
tion.
Operating status in Vitovent air flow rate
the "Time prog ven-
200-W
tilation"
Air flow rate of the most recently active
ventilation level
"Background ventilation C109"
―
Factory setting:
"Reduced" "Reduced ventilation C10A"
Factory setting:
"Standard" "Standard ventilation C10B"
Factory setting:
"Intensive" "Intensive ventilation C10C"
Factory setting:
―
In the operating status "Standard" and "Reduced"
the air flow rate can automatically be adjusted subject
to the following factors:
Humidity:
■
Measurement via central humidity sensor (accesso-
ries)
■ Humidity:
Measurement via CO
■ CO concentration:
2
Measurement via CO
Heat recovery and humidity control
In standard ventilation mode the outdoor air and
extract air flow through the heat exchanger. All heat
exchangers used operate according to the countercur-
rent principle. This principle allows much of the thermal
energy of the extract air to be transferred to the cool
outdoor air, without the two air flows mixing together.
Function description
300-C 300-W
0 % 3
0 m /h
15 % 3
30 m /h
25 %
3
75 m /h
50 % 3
100 m /h 150/200 m
75 % 3
125 m /h 225/300 m
/humidity sensor (accessories)
2
/humidity sensor (accessories)
2
3
0 m /h
3
50 m /h
3
100 m /h
3
/h
3
/h
65