D71 Control Voltage Matching, Supply Air Fan - Viessmann VITOTRONIC 200 Service Instructions Manual

7D5E Starting block, ventilation periods part...
Bit Meaning
"Bit 1" 00:00 o'clock
"Bit 2" 01:00 o'clock
"Bit 3" 02:00 o'clock
... ...
"Bit 16" 15:00 o'clock
Example:
"Bit 3", "Bit 7", "Bit 9" and "Bit 11" are selected:
The fans are restarted at 2:00 h, 6:00 h, 8:00 h and at
10:00 h.
7D5F Starting block, ventilation periods part 2
Vitovent
200-C 200-W 300-C
X
—
The fans may be switched off to protect the heat
exchanger from frost, depending on the temperature
conditions and the selected defrost and frost protection
function.
If the temperature conditions are no longer met, the
fans are restarted at the selected times (16:00 to
23:00 h).
Setting in the bit field (see chapter "Setting parame-
ters"): Several bits can be selected.
Note
opens the setting wizard.
Bit Meaning
"Bit 1" 16:00 o'clock
"Bit 2" 17:00 o'clock
"Bit 3" 18:00 o'clock
... ...
"Bit 8" 23:00 o'clock

7D71 Control voltage matching, supply air fan

Vitovent
200-C 200-W 300-C
X
—
To compensate for any pressure differential between
the supply air and extract air side, the speed of the
supply air fan compared to the exhaust air fan can be
raised or lowered. To do so the value set here is added
permanently to the control voltage of the supply air fan.
300-F 300-W
— — —
300-F 300-W
— — —
Parameter group Ventilation
(cont.)
Note
The times from 16:00 to 23:00 h are selected with
"Starting block, ventilation periods part 2 7D5F".
The setting value results from the combination of se-
lected bits.
!
Example:
"Bit 1", "Bit 4", "Bit 6" and "Bit 8" are selected:
The fans are restarted at 16:00 h, 19:00 h, 21:00 h and
at 23:00 h.
Note
The times from 0:00 to 15:00 h are selected with
"Starting block, ventilation periods part 1 7D5E".
The setting value results from the combination of se-
lected bits.
!
≙
Setting 1 0.01 V
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