Operating instructions

22
SET CO
2
All the desired CO
2
settings will be made in the SET CO
2
mode. Linking of CO
2
to a Ventilation or Cooling output,
setting of differentials, and time delays.
1. Enter the SET CO
2
mode.
2. Use the PRIOR-NEXT switch to advance to the desired item to set.
3. Use the VALUE switch to toggle between desired choices that the system has internally provided, or to increase
or decrease the desired display setting.
Link CO2 1 to:
(Desired Output)
If there is ventilation outputs or cooling stages on the Growmaster Procom, CO
2
can be linked to them to reduce
the setpoint levels of C0
2
called for gradually.
(IF LINKED)
Reduce PPM (25%)
If Vent 1 >= 26%
Enter the percentage to reduce the ppm of CO
2
setpoint, and the desired stage or vent position. The Growmaster
Procom has two setpoint reduction stages for CO
2
. If CO
2
is linked to a ventilation output, then you will be able to
enter the vent percentage open to start the reduced setpoints. If CO
2
is linked to a cooling output(s), then you will
be able to enter the cooling stage to start the reduced setpoints.
Reduce PPM 50%
If Vent 1 >= (50%)
Enter the percentage and stage for the second adjustment desired.
Cancel CO2 1
If Vent 1 >= (75)%
Enter the ventilation position or desired stage to cancel the CO
2
program. The Growmaster Procom will restart the
CO
2
program once the ventilation position or cooling stage has been lowered or turned off.
CO2 1 Diff
(50) PPM
This is the PPM of CO
2
differential of the CO
2
system. This is the change in the PPM of CO
2
that is necessary to
cause a change in the system.
CO2 1 Delay
(30 Sec.)
This will be the time delay that the system must see to energize or de-energize the CO
2
output.