Acme PP-32 - Manual (Page 19)

19
PP-32
KOOLMASTER PP-32
REV.01
5.4 MINIMUM VENTILATION
PRINCIPLE OF OPERATION
When the room temperature is below the set point, fans can operate
according to a timer. The minimum ventilation cycles runs stage 1 fans
according to a timer as shown below. Running fans even though ventila-
tion is not required for reducing the room temperature is useful to reduce
the humidity level and supply oxygen to the room. It also prevents the
fans from freezing in winter.
In addition, fans' On-Time, in minimum ventilation, can automatically be
adjusted over time by using a curve. Refer to section 5.15.2 for further
information on the minimum ventilation curve.
Note that the minimum ventilation curve must be TURNED OFF
in order to adjust minimum ventilation settings.
5.4.1 Adjusting Minimum Ventilation's On-Time
Fans' On-Time, in the minimum ventilation cycle, can be adjusted from 0
to 900 seconds (15 minutes), in increments of 5 seconds. Note that the
On-Time cannot be greater than the cycle time. If vent doors are used, the
On-Time is limited by the vent doors' pre-opening delay (see sec. 5.14.3).
Select "7.Min. Ventilation" from
the main menu using the naviga-
tion buttons then press the right-
arrow key.
Min ventilation
On Time: 30sec
Curve stat Off
MINIMUM VENTILATION TIMER
ON
ON-TIME
CYCLE-TIME
OFF