enervent Fenix 120, Installation And Operation Instructions Manual, Page: 5 / 31

5
WARNING
After opening the service hatch, wait for two (2) minutes before starting any maintenance
work! Although the unit’s power supply is cut when the hatch is opened, the fans still rotate
and the electrical heater is still hot for a while.
There are no user-serviceable parts within the control panel, contact a service technician
for service and repairs of this part of the unit.
Check the cause of any fault before restarting the unit!
OPERATING PRINCIPLE
The Fenix ventilation unit is based on recuperative heat recovery. This is achieved with a
cross flow plate heat exchanger through which the supply air and the exhaust air flow.
Heat from the exhaust air is tranfered through an aluminium plate to the supply air.
The efficiency varies from 52 % to 64 %, depending on the proportion and volume of
supply air and exhaust air (the heat from the supply air fan is taken into account).
Thanks to its high efficiency, the Fenix saves heating energy at the same time as it
provides excellent indoor air quality; therefore it pays for itself in a relatively short time.