19
VUT EH
VUT EH
«Seasonal Mode»
In the «Heat Recovery» («Winder» mode) the bypass damper is closed, thus forcing the supply air through the heat exchanger.
To prevent icing the heat exchanger is equipped with a temperature sensor which controls the bypass duct damper. In case of icing
danger the bypass damper on the supply air side is opened. The supply air is then goes through the bypass whereas the exhaust air goes
through the heat exchanger warming up its frozen surface. After the heat exchanger thaws and the exhaust temperature increases the
bypass damper downstream of the heat exchanger shuts closed and the supply air enters the heat exchanger. In the «Open-Closed»
mode the bypass damper operates as follows: open - 5 minutes, closed - 25 minutes, which disables the heat exchanger freezing.
In the «No Heat Recovery» mode («Summer» mode) the bypass damper is constantly open.
To select the user-defi ned position (day of the week, timer status on the day - on/off , unit operation time in the mode, controlled temperature,
and fan speed) use the
button.
To change the selected entry press
and
buttons.
Table 5
Day
State
Interval 1
Interval 2
Activation
Time
Deactivation
Time
Temperature
[°C]
Fan Speed
Activation
Time
Deactivation
Time
Temperature
[°C]
Fan Speed
Mon
On
8:00
18:00
23
18:00
8:00
20
Tue
On
8:00
18:00
23
18:00
8:00
20
Wed
On
8:00
18:00
23
18:00
8:00
20
Thu
On
8:00
18:00
23
18:00
8:00
20
Fri
On
8:00
18:00
23
18:00
8:00
20
Sat
On
8:00
18:00
23
18:00
8:00
20
Sun
On
8:00
18:00
23
18:00
8:00
20
The factory settings for the weekly timer are stated in Table 5.
23:00-08:00
08:00-23:00
MONDAY
ON
Heat recovery
Season mode
No heat recovery
Week timer
Season mode
Day Timer
Summary of Contents for VUT 1000 EH
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