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AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
151
: maximum supply fan voltage
152
: minimum extractor fan voltage
153
: maximum extractor fan voltage
Based on the value of the parameter
009
,
the type of fan control can then be selected:
009
= 0 for manual control,
009
= 1 for control based on CO
2
,
009
= 2 for control based on the temperature (between minimum and maximum speed),
009
= 3 for on/off control based on the temperature,
009
= 4 for control based on temperature and CO
2
,
009
= 5 for control of the differential pressure (only for modulating fans).
When the device is switched on, the fan starts up after the start-up delay has elapsed
159
, whilst when the device is switched
off, it actually switches off after the ventilation switch-off delay has elapsed
160
.
Manual control of speed (
009
=0):
The fans operate at a fixed speed that is selected manually. To select the speed, proceed as follows:
press the
ESC
button and the icon is displayed together with the indicator of the fan operating mode on
display B.
Press the
ESC
button one or more times to select the speed of the fan in the case of on/off fans with multiple speeds or
modulating fans (
008
=2 or 3 or 4):
SPE1
= control with speed 1,
SPE2
= control with speed 2,
SPE3
=Control with speed 3.
The selection made is saved automatically.
To exit the menu, wait 4 seconds until
display B
stops flashing.
Note: In case of operation without a fan (
008
=0), pressing the
ESC
button has no effect.
If using modulating fans, speeds 1, 2 and 3 correspond to 3 percentage levels of the motor speed variation field. To configure
these parameters, set the parameters
154
,
155
,
156
for the speeds 1, 2 or 3 respectively.
The parameters
150
,
151
allow you to select the minimum and maximum voltage of the supply fan (supply fan speed variation
field).
The parameters
152
,
153
allow you to select the minimum and maximum voltage of the extractor fan (extractor fan speed
variation field).
For the supply fan, the manual speeds are calculated as follows:
speed 1=[(
154
/ 100) x (
151
-
150
)] +
150
speed 2=[(
155
/ 100) x (
151
-
150
)] +
150
speed 3=[(
156
/ 100) x (
151
-
150
)] +
150
For the extractor fan, the manual speeds are calculated as follows:
speed 1=[(
154
/ 100) x (
153
-
152
)] +
152
speed 2=[(
155
/ 100) x (
153
-
152
)] +
152
speed 3=[(
156
/ 100) x (
153
-
152
)] +
152
