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Building Purge Setting Menu - continued
The Purge Time ON determines how long the building will purge when triggered by the Purge Delay timer. The Purge
Delay timer is the length of time the building must be continuously closed before starting a purge.
BUILDING PURGE SETTING Z1-S01
Purge Time ON: 0:10:00 Delay: 1:00:00
If the building is closed and the humidity rises above this setting for the length of the Humidity Delay timer, a purge
is initiated. If the humidity sensor gives a bad reading, humidity purges will not occur, but timed purges will occur.
The rule that having pit fans means a building is “power ventilated” may cause a problem for
growers who use only pit fans and curtains. The Purge Time ON menu item is not available for power
ventilated buildings. The solution is to install the Pit Fans as Stir Fans so that the Purge Time ON
menu item is available.
BUILDING PURGE SETTING Z1-S01
Humidity Purge Setpoint: 90%
The Humidity Purge ON time determines how long the building will purge when triggered by the Humidity Purge
Setpoint and Humidity Delay timer. The Humidity Delay timer is the length of time the building must be continuously
closed and humidity at or above the Humidity Purge Setpoint before starting a purge based on humidity.
BUILDING PURGE SETTING Z1-S01
Humidity Purge ON: 0:10:00 Delay 0: 50:00
If the working temperature falls below the Purge Inhibit Temp LOW setting, purging is inhibited. If the temperature
falls below the Purge Inhibit Temp LOW setting while a purge is in progress, the purge is stopped. If the temperature
rises above the Purge Inhibit Temp HIGH setting, purging is inhibited. If the temperature rises above the Purge Inhibit
Temp HIGH setting while a purge is in progress, the purge is stopped.
BUILDING PURGE SETTING Z1-S01
Purge Inhibit Temp LOW: 60.0 HIGH: 95.0
It is possible to heat the zone before purging. Heated air holds more moisture, causing more moisture to be removed
during purging. You can heat the zone to a maximum of 5 degrees above the Temperature Setpoint. This value will
change with the Temperature Setpoint.
BUILDING PURGE SETTING Z1-S01
Before purge raise Temperature to: 73.0
Set the Abort time to prevent the heater from running constantly because the Heat Temperature can’t be reached. If
the Heat Temperature is not reached in this amount of time, the heating will be aborted and the purge will commence.
BUILDING PURGE SETTING Z1-S01
Time to Abort Heat before Purge: 2:00
A Heater MUST be installed and in use during Heat Purge. It MUST also be set to Yes before
these two menus will appear.
CONTROL
SETTINGS
Purge Time On and Delay Time
Humidity Purge Setpoint
Humidity Purge On Time and Delay Time
High and Low Temperature Inhibit
Heat zone before purging