9.3 Component descriptions
9.3.1 Fans
The fans have external rotor motors of EC type which can be steplessly controlled individually 20–100%.
The motor bearings are life time lubricated and maintenance free. It is possible to remove the fans for
cleaning, see “User Manual” for more information.
9.3.2 Filters
The factory installed filters are of filter quality F7 for the supply air and G3 for the extract air filter. The filters
need to be replaced when polluted. New sets of filters can be acquired from your installer or wholesaler.
Filter quality G3 can be installed for supply air filtering.
The filter type is labelled on the top of the filter
Note:
If type G3 filters are used instead of F7 , the system curve for Supply Fan (SF) must be changed:
For G3 type filter: 11–20, for F7 type filter: 1–10.
9.3.3 Heat exchanger
SAVE VSR 300/500 is equipped with a highly efficient, rotating heat exchanger. Required supply air
temperature is therefore normally maintained without adding additional heat.
The heat exchanger is removable for cleaning and maintenance, see “User Manual” for more information.
9.3.4 Print card
The main print card controls the functions and set temperatures of the unit.
1
1. Print card
It is possible to connect external accessories to terminals in the print card. See wiring diagram for more
information.
9.3.5 Temperature sensors
Four temperature sensors (NTC, 10 kΩ at 25°C) are included in the unit from factory and positioned in the
corresponding air chambers.
The sensors are connected to the main print card. See wiring diagram for more information.
SAVE VSR 300/500
Installation and Service
208115
36
Systemair AB
Summary of Contents for SAVE VSR 300
Page 4: ......
