HomeVision® Pro/Lite
© Corroventa Avfuktning AB
Rev A
7 (30)
To further facilitate the understanding of the principal, the example below presents all the
parameters and explains how they are applied.
As can be seen from the example above, the setpoint shall not be seen as, or confused with, a
maximum level as it is exceeded with Hysteresis Upper before the dehumidifier is even activated. At
times of high moisture load, the relative humidity can climb even further before it starts declining.
Consequently, the setpoint is, if not perfectly correct, more to be seen as an upper limit for the
average relative humidity and therefore
there must always be a margin bigger than the Hysteresis
Upper between the setpoint and the level at which damage arises
.
The reason for HomeVision® allowing the user to set the hysteresis is to allow for each and every
installation to be optimized. A too narrow span results in many starts and stops of the dehumidifier
with increased wear on the equipment. A too wide span normally results in the system drying the
crawls space to unnecessarily low levels which consumes more energy than necessary.
Setpoint, %RH:
65%
Activation: SHysteresis Upper = 65% + 4% = 69%
Deactivation: SeHysteresis Lower = 65% - 4% = 61%
Hysteresis Upper/Lower:
+ 4%, -4%
Alarm, +%RH: 10%
Added to the activation level to give the Alarm Level.
Alarm Level = Se Hysteresis Upper + Alarm =
65% + 4% + 10 % = 79%
