16
Accessories
CO
2
-sensor
Electrical after-heating element - integral
Pressure-controlled filter alarm
Humidity sensor
Handle with cylinder lock
Pressure control
Water after-heating element - integral
If you want the ventilation level to regulate in accordance with how many people are in the building, you
can order a unit with an integral CO
2
-sensor.
On the control panel you set the CO
2
-level you want. If this level is exceeded, ventilation will increase to
the set fan speed level.
Electrical after-heating element - integral
You will need to order an after-heating element if, for instance, you want to use the ventilation unit for
heating the building. The electrical after-heating element is installed in the ventilation unit at the factory.
The electrical after-heating element requires its own power supply.
Pressure-controlled fi lter alarm
As standard, the control system has a time-controlled fi lter alarm that can be set between 30 and 360 days.
If you want an accurate indication of when to change the fi lter, we recommend that you order a pres-
sure-controlled fi lter alarm. It displays the pressure drop over the fi lters in the CTS control system
regularly. You pre-set a fi nal pressure drop in the control system, and an alarm will indicate when this
pressure drop has been reached and the fi lters need replacing.
If you want to regulate the fan speed level in accordance with the humidity level in the extract air, you
can order a unit with an integral humidity sensor.
The unit can change the fan speed level to low or high humidity level.
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.
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.
Water after-heating element - integral
You will need to order an after-heating element if, for instance, you want to use the ventilation unit for
heating the building.
The water after-heating element is installed in the unit at the factory and it comes with a 3-way valve
and a Danfoss Actuator.
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