www.ventilation-system.com
20
3. Heating
— the fans, the heat exchanger and the heat pump are
enabled. The user may change the temperature and speed settings.
While in the Heating mode the unit operates only to the effect of
increasing the indoor temperature up to the pre-set value.
If the indoor or the outdoor temperature is inconsistent with this
mode settings the unit will switch to the
Auto mode
automatically.
4. Cooling
— the fans, the heat exchanger and the heat pump are
enabled. The temperature and speed settings are available. While
in this mode the unit operates only to the effect of decreasing the
indoor temperature to the pre-set value. If the indoor or the outdoor
temperature is inconsistent with this mode settings the unit will
switch to the
Auto mode
automatically.
5. Auto
— the fans, the heat exchanger and the heat pump are
enabled. The temperature and speed settings are available. While in
this mode the unit automatically adjusts the heat pump operation
to attain the pre-set temperature at the selected speed.
6. Scheduler
— the fans, the heat exchanger and the heat
pump are enabled. The temperature and speed settings are not
available. While in this mode the unit operates according to a pre-
programmed schedule.
TEMPERATURE SETTING
To modify the temperature setting set the cursor at «Setpoint» by using the
button. Then use the
and
buttons to set the
desired value and then press the
to confirm. Temperature setting range: from +15 °C to +30 °C.
FAN SPEED SETTING
To select the desired fan speed set the cursor at
«Fan speed»
by using the
button. Then use the
and
buttons to set the
desired value and then press the
to confirm. Three fan speed stages are available:
Low
,
Medium
and
High
. The fan rotation speed
corresponding to each speed stage is set as a percentage of the maximum capacity of each fan via the unit parameter setup menu.
Fan speed control in the
Auto mode
requires a th-Tune control panel in a special configuration or with an external humidity sensor with a
0-10 V output signal. Enable the
«Humidity feedback speed control
» and set the maximum and minimum speed for the supply and exhaust
fans as a percentage value. Set the
«Auto»
fan speed.
Summary of Contents for VUT R 400 TN EH EC A17
Page 31: ...31 ...
Page 32: ...V107EN 02 ...
