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Pressure control
The motor for the extract and/or supply air fan can be controlled by one or two pressure transmitters. These
should be mounted in the extract and/or supply air duct.
The standard version is delivered with pressure transmitters and a 5 m cable, including power supply.
Pressure-controlled filter alarm
As standard, the control system has a time-controlled filter alarm that can be set between 30 and 360 days.
If you want an accurate indication of when to change the filter, we recommend that you order
a pressure-controlled filter alarm. It displays the pressure drop over the filters in the CTS control system reg-
ularly. You preset a final pressure drop in the control system, and an alarm will indicate when this pressure
drop has been reached and the filters need replacing.
Water trap with ball
A regular water trap could potentially dry out. If this happens, the water trap stops working, air is drawn into
the ventilation unit, and condensate water cannot drain away via the condensate drain. Condensate water
will then leak from the unit onto the floor and potentially cause damage.
We therefore recommend that you install a water trap with ball to ensure that the condensate drain always
works. Should the water trap dry out, the ball will prevent air from being drawn into the system, and conden-
sate water will drain away freely.
Vibration absorbers
Vibration absorbers (sylomer pads) ensure that vibrations from the unit to the underlying surface are damp-
ened effectively. The vibration absorbers are placed under the unit.
Handle with cylinder lock
If you want to be able to lock the service doors to the unit, you can purchase handles with a cylinder lock and
key.
Top cover
If the unit is to be installed outdoors, you can order a top cover for protection against rain and snow.
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