Dantherm VentR Installation And Service Manual page 21

6.2 Rotary heat exchanger on Vent R units
The rotary heat exchanger must be checked for dirt and damage every 6 month. The rotary heat
exchanger is cleaned as follows:

Remove fresh air and exhaust air filter (please see section 6.1)

It is now possible to vacuum clean the rotary heat exchanger from the filter cassette.
Use a smooth mouthpiece to avoid damage on the rotary exchanger.

If the rotary exchanger is very dirty, it can be cleaned by compressed air. This has to
be done against the airflow, which means that it must be done from the fan section
side. To do this, the fans must first be dismounted. – Please see section 6.4.

Put the filters and any dismounted fans back in their place again.
The packing of the rotary heat exchanger and the belt drive has to be checked at least once a year.
Proceed as follows:

Remove the cover panel in front of the rotary heat exchanger

Check the brush packing on both sides of the rotary heat exchanger for damage. If
the brush packing is damaged, replace it.

Check the belt tension. If the belt is loose or damaged, replace it. Cut the belt and
mount the spare belt, which is fixed to the rotary heat exchanger on the motor
pulley.

Put the cover panel back in place again.
6.3 Cross flow heat exchanger in Vent C units
Check the cross flow heat exchanger for dirt and damage every 6 months. The heat exchanger is
cleaned as follows:

Remove fresh air and exhaust air filter (please see section 6.1)

It is now possible to vacuum clean the rotary heat exchanger from the filter cassette.
Use a smooth mouthpiece to avoid damage on the rotary exchanger.

If the rotary exchanger is very dirty, it can be cleaned by compressed air.

Check the drain from the drip tray on the exhaust side. Clean the drip tray if
necessary.

Put the filters back in place again.
Check the damper function at least once every 12 months.
Installation and service manual
Version 2.5
21