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4.3 Purge Sector installation
Swiss Rotors energy recovery wheel comes with two additional purge sectors. Their task is to exclude exhaust air carry
over into supply air stream which occurs during rotation of the wheel matrix. It is an optional element and may not
be needed based on application. The advantage of using sectors is also an increased ability of the rotor wheel self-
cleaning. Start by determining the proper mounting position of the purge sectors in your heat exchanger. Depending on
airflow configuration and wheel rotation direction, please choose the proper mounting position.
Sector can be located
on the side of fresh air supply only and exclusively.
Bearing in mind the airflow and rotation direction of the rotary wheel, please refer to the following illustrations presenting
possible ways of proper purge sector installation.
Reverse assembly is incorrect and will cause the sector to block the fresh air inlet instead of preventing airstream
mixing. To install purge sector follow instructions below:
1. Detach brush plate from the profile starting with unscrewing the screws. Purge sector is equipped with brush and
will fully replace the standard brush preassembled to the central bar. Use the appropriate screwdriver with T25 bit to
unscrew the connections.
Figure 4.1
Position of purge sector
