Air Dampers - Wolf WRS-K Installation And Operating Instructions Manual

10.2.8 Air dampers

Mixed air damper
Start delay for fan
Esc BACK SELECTION
3062878_201707
10. Operating level 2
Standard mask
MK-01
Air dampers
3 operating modes can be selected for outside, discharge and mixed air dampers:
000 s
a. Fixed fresh air proportion
The system always operates with this fresh air proportion, except functions are
active that would overrule this value (e.g. frost protection, natural cooling, air quality
DISPLAY
control).
b. Modulating reduction of the fresh air proportion at lower outside
temperatures
The fresh air proportion entered is the fixed fresh air proportion which is active in
standard mode, except functions are active that would overrule this value (e.g. frost
protection, natural cooling, air quality control).
When an adjustable outside temperature is not reached (switching point 1), the fresh
air proportion is reduced (modulating) down to an adjustable minimum proportion at
switching point 2.
Furthermore settings relating to the system start can be made.
Parameter "Start delay for fan" prevents the fan from pushing against a closed
damper.
With parameter "Start time for recirc. mode" the system starts in recirculation mode;
the outdoor air damper will only open after expiry of this time.
Set proportion
fresh air
Minimum
proportion
c. Energy optimised
To save heating or cooling energy, energy optimised control of the mixed air damper
can be set up.
In the case of energy optimised control of the fresh air damper, the fresh air
proportion during active cooling and with an outside temperature > room or extract air
temperature + parameter "Energy optimised cooling" is reduced to the minimum fresh
air proportion. When heating mode is enabled and the outside temperature is < room
or extract air temperature – energy optimised heating, the fresh air is also reduced
to the minimum proportion, unless functions that override this are enabled (e.g. air
quality control, hygrostat function).
Main menu
Esc
Proportion fresh air
100 %
0 %
Switching point 1
e.g. 0 °C
Heating contractor
Outside temperature
Switching point 2
e.g. -10 °C
35