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If you are running a power-ventilated building, the Minimum Ventilation
and Purge Settings menu is displayed.
Only a humidity purge is available in a power-ventilated building. When a purge occurs in a power-ventilated
building, the curtains and inlets open to the Purge Opening Size for each device group. Fans that have Purge as a part
of their operating mode are turned on.
This is the ON and OFF times (minutes and seconds) used for fans designated as Temp or Minimum Vent when those
fans are not running based on temperature. Minimum ventilation is important when a building purge is not triggered
frequently enough to keep inside air fresh. Minimum ventilation runs inlets using their proportional settings or by
static pressure control depending on how you’ve set up the inlet or curtain.
MINIMUM VENT AND PURGE SETTING Z1-S01
Minimum Vent Timer ON: 5:00 OFF: 5:00
You can automatically adjust the Minimum Vent timers by creating a ramp table with appropriate On/Off times for
different ages. The animal age used here is the same animal age used within the Current Animal Information menu.
MINIMUM VENT AND PURGE SETTING Z1-S01
Min Vent #1 Age: 10 ON: 4:00 OFF: 6:00
A ramp point is an age at which you want the building’s (or zone’s) minimum ventilation times to be. Set a series of
ramp points, up to 9, to adjust the minimum vent times over a growing cycle. Press the PLUS or MINUS keys when
the Ramp Point menu is displayed to change the ramp point number.
Each day at midnight, the controller scans the ramp table and new Minimum Vent On and Off times are
determined and substituted for yesterday’s times. The controller selects the On and Off times based on
the ramp point settings. For in-between ages, the controller calculates appropriate times based on the
ages and times between the nearest Ramp point ages. This allows subtle changes from day to day. A
decrease in age from one Ramp point to the next will cause the ramping to stop at that age.
If the humidity remains at or above this setting for the length of the Humidity Delay Timer, a purge is initiated.
MINIMUM VENT AND PURGE SETTING Z1-S01
Humidity Purge Setpoint: 90%
If you do not have any fans designated as Purge fans, the Humidity Purge Setpoint menu
item does not appear.
Minimum Vent and Purge Settings Menu
Power Ventilation
Minimum Ventilation Timer
Minimum Vent Ramping
Humidity Purge Setpoint
