Stepless Fans; Multistep - Skov DOL 532 Tunnel Technical Manual

DOL 532 Tunnel

5.2.1.3 Stepless fans

Testing setting and placement of stepless fans
The test is to show if the connected stepless fan(s) are set correctly, i.e., if they can run at minimum and maxi-
mum speeds, and whether they are placed correctly.
In internal fan speed controller mode, the emergency change-over switch AUT/MAN (automatic/manual) on the
side of the controller must be set to AUT (see the section Emergency Change-over Switch AUT/MAN).
Select
Climdate equipment
Repeat the test for each of the stepless fans.
Test an external stepless fan speed controller in the same way as an internal controller.

5.2.1.4 MultiStep

This test is to show that flaps and fans in the chimneys work in relation to each other.
The installed MultiStep units should be tested in the same way for each step, by checking the exhaust units indi-
vidually.
Then select
Climate equipment
22
card
| Air outlets | Stepless 1 |
Set the
Activate
oulet fan speed
Check that the fan is placed in the livestock house.
Check that the fan sucks air out of the house (e.g., by means of
a smoke test).
Check that the fan is running at maximum speed.
Set the
Check that the fan sucks air out of the house (e.g., by means of
a smoke test).
Check that the fan is running down to minimum speed.
Set the Air outlet fan speed to 0 %.
Check that the fan stops completely.
If the fans are connected as 3-wire, they should not stop com-
pletely, but instead run at minimum speed.
card
| Air outlets | MultiStep 1
and activate
Manual mode
(flap) to 100%.
Air outlet required
Manual mode for Air outlet fan speed and set the
to 100%.
to 1%.
Air outlet fan speed
and activate
Manual mode
.
Air
.
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