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Temperature compensation:
(75%-70%)*0.2°C/% = 1.0°C
Corrected house temperature:
20.0°C+1.0°C=21.0°C
Calculated ventilation
(Min. vent.=10%, Max. vent.=100%, band width =4°C)
:
55%
Calculated ventilation based on the corrected house temperature:
32.5%
Compensation:
Absolute
Relative
Calculated compensation:
(75-65)*1.0*((15.7-7.8)/10)= 7.9% (75-65)*1.0*((15.7-7.8)/10) = 7.9%
Corrected ventilation:
32.5% + 7.9% = 40.4%
32.5%+ (7.9*32.5) / 100 = 35.1%
“Temperature compensation” leads to lower ventilation, whereas the relative humidity leads to higher
ventilation.
Absolute RH outside air
higher than or equal to
RH house
the absolute RH of the outside air is higher than the
absolute RH of the air in the house:
Increasing the ventilation will only have a negative
effect: it will increase the humidity content in the
house.
Solution: To increase the house temperature using “Temperature compensation”. This compensation corrects
the house temperature setting upwards if the RH in the house becomes too high (this also
automatically increases the heating settings).
The corrected ventilation is limited
by the pre-set maximum (Max.).
Compensation ventilation
In this event, ventilation is NO LONGER corrected by the relative humidity but ONLY by the temperature
compensation.
Example:
Outside temperature:
22.0°C
Current house temperature
(House temperature setting =20°C)
:
22.0°C
RH compensation start:
65%
Temperature compensation:
+05% 70%
Current RV:
75%
15.7g/m
3
RH outside air:
80%
16.8g/m
3
RH compensation factor:
1.0
Temperature compensation:
(75%-70%)*0.2°C/% = 1.0°C
Corrected house temperature:
20.0°C+1.0°C=21.0°C
Calculated ventilation
(Min. vent.=10%, Max. vent.=100%, band width =4°C)
:
55%
Calculated ventilation based on the corrected house temperature:
32.5%
Compensation:
Absolute
Relative
Calculated compensation:
0%
0%
Corrected ventilation:
32.5% + 0% = 32.5%
32.5% + 0% = 32.5%
The “Temperature compensation” reduces the ventilation: since the RH of the outside air is too high, the
ventilation will NOT increase as a result of the relative humidity.
If both RH compensation and CO
2
compensation are active, the highest compensation value is used for
ventilation correction.