Cooling
The unit can cool the dwelling via active cooling by the heat pump. For the unit to switch to cooling
mode it must operate in summer mode, or you must activate cooling in “Operating function”.
Active cooling:
If the room temperature (measured in the extract air) is higher than the desired room tempe
the cooling setpoint, the compressor will start up and begin active cooling of the supply air. The
compressor will stop when the room temperature falls below the cooling setpoint -1ºC.
Cooling
↳
Cooling setpoint
Settings:
Standard setting:
Description:
Off / +1 / +2 / +3 / +4 / +5 / +7 / +10 ºC
Off
Off: Active cooling is deactivated.
Se X ºC: Indicates when active cooling is to
start. The setpoint is the desired room temperature as
selected on the front of the panel.
↳
Ventilation in connection with cooling
Settings:
Standard setting:
Description:
Off / 2 / 3 / 4
Off
Off: The fan speed level does not change when the unit
switches to cooling mode.
Level 2-4: Select the fan speed level you want the unit
to switch to when in cooling mode. This happens
already at bypass cooling.
Night cooling
The menu
Night cooling
allows to select passive cooling at night provided the outdoor temperature the
day before has been above the set day temperature limit for at least one hour.
I
Night cooling
the period suspend the compressor cooling operation and the room setpoint is lowered
to the temperature set in the night cooling menu. The set limit for minimum supply temperature is not
observed during night cooling, but the unit must run compressor heating if the room temperature falls
below the night cooling set point.
No special consideration is given to whether the room temperature is above or below the outside
temperature, ie. whether cooling effect can actually be achieved with the outdoor air. When the night-
cooling period is over, the system again runs as usual with compressor heat and cooling after normal
set point.
Night cooling
↳
Day temperature
Settings:
Standard setting:
Description:
20.0
↔
40.0 ºC
25.0 ºC
Here the day temperature is set, which must be a
prerequisite for night cooling.
↳
Room temperature
Settings:
Standard setting:
Description:
10.0
↔
30.0 ºC
18.0 ºC
Here you set the room temperature to which you want
to cool.
VPL28 (English)
BY NILAN
15
