© Munters AB, 2018
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ventilation doesn't reduce the temperature, the level will continue to increase until the temperature
decreases.
Once the temperature drops to the Happy Zone (the user-defined temperature band close to target
temperature) the ventilation level remains the same. If for example the ventilation level is level 3 when
the temperature reaches the Happy Zone, the ventilation remains at level 3. The level will only decrease
if the temperature goes below the target temperature. In that case, the ventilation level will decrease
until the temperature rises to the Happy Zone or the ventilation goes down to Minimum.
Figure 25: Delay time
Please note: The temperature does not determine the ventilation level. The same temperature can have
different levels in different situations. Proper ventilation prevents high or low temperatures.
10.2.2
V
ENTILATION
G
UIDELINES
The following are general guidelines to be used in configuring the fans and ventilation levels:
•
When building the levels of ventilation, ensure that the increase is a slow, gradual increase.
Increase the amount of air by increasing the numbers of fans being used, the fan size, and the
time each fan runs.
•
Each individual fan can run in one of two manners:
o
Continuous. When used in this mode, the fan air capacity determines how much air is
provided.
o
Cycle: When fans run in cycle mode, the Main Screen displays cycle and air quantity.
Relay controlled fans operate according to the defined times.
Figure 26: On Time Off Time
If variable fans run in cycle time, the fans' output is defined as Low or High.
o
Low output: During the Off Time, fans do not operate. During the On
Time, fans operate at the percentage set to the level the control is on.
o
High output: During the Off time, fans operate at the percentage set
to the level the control is on. During the On Time, fans operate at
100%.
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