enervent Fenix 120, Installation And Operation Instructions Manual, Page: 19 / 31

19
O P E R A T I O N
Fan speed
Always keep the Fenix ventilation unit on and running.
Fan speed (efficiency) is regulated with the knob on
the control panel. There are four speeds available.
After heating
The supply air is heated after the heat exchanger with
an electrical heating coil to the temperature set on the
thermostat. The heating coil is equipped with an
automatic over heating protector and a manually set
off temperature limiter.
Freeze protection of the heat exchanger
Freezing of the heat exchanger is prevented by limiting the waste air temperature to
+2…+5°C. When the waste air temperature drops to +2°C the supply air fan stops, and the
waste air temperature starts rising. When the temperature r5°C the supply air fan
starts again.
By-pass damper
The summer by-pass is used when heat recovery from the exhaust air is not needed
(when the outside temperature is over +12…15°C).
The winter damper is used when heat recovery from the exhaust air is wanted (when the
outside temperature is below +12°C).
Winter damper in use (left handed Fenix)
Summer by-pass in use (left handed
Fenix)
MCC control panel