14
VUT 300 (301) EV(K) mini EC
from the remote controller - press the button
to turn the timer for 20 minutes on. To turn
the timer off press the button
or
.
5.
Heat exchanger freezing protection.
If the temperature in the intake air duct upstream of the heat exchanger is from -7 °C up to
-15 °C, the unit turns into automatic temperature control mode. The supply fan has 5 minutes standstill
and then it operates within 25 minutes. If the temperature is below -15 °C the supply fan has 5 minutes
standstill and then it operates within 15 minutes.
6.
Unit setup modes
Re-adjustment of the unit settings results in loss of the factory settings!
Fan speed and temperature sensor setup is possible only from the wall-mounted
control panel!
Fan capacity setup mode.
The unit operates at low, medium or high speed. The supply and extract fan speeds are smoothly
adjustable in setup mode. The fan capacity is adjustable only in the fan speed setup mode. The fan speed
setup mode is accessible only when the unit is off. To enter the fan speed setup mode press and hold
the button
on the wall-mounted control panel, then press and hold the button
within 3 seconds.
Access to the setup mode is confirmed by the indicator
and , fig. 12 on the wall-mounted
control panel display.
To select the required speed to be
adjusted use the buttons
and
.
During fan speed setup the selected speed is
displayed by the indications
,
or
.
Fig. 12. Fan speed setup
To adjust the supply fan capacity press
and hold the button
and press the button
to set the fan speed up or the button
to set the
fan speed down. Each pressing of the button
and
increases or decreases the supply fan by
1%. If the button
remains pressed the display
indicators show the current supply fan speed, fig.
13.
To adjust the exhaust fan speed press
and hold the button
and regulate the speed by
the button
for setting speed up and the button
for setting speed down.
Fig. 13. Fan speed setup
