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iGrow 1800 Installation Guide
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02 ExFan OnOff
Cycle
Disable
Cycle On
00
:00:00
Cycle Off 00 :00:00
This third screen provides you with the option of cycling on and off the On/Off output (in this example, an
Exhaust Fan). The cycling, if enabled, only occurs when the temperature stage calls for the equipment to turn
on. For example, in the first screen shown above, this would only occur in cooling stages 2-6. The cycle times
are in hours, minutes and seconds.
Now if we go back to the 2
nd
screen above and Enable the Active Cooling (AC) Override function, as shown
below,
02 ExFan OnOff
No Pump
AC Override
Enabled
A fourth screen is opened up as follows:
02 ExFan OnOff
AC Heat Cool
OVR- 654321 N 123456
Ride 000000 0 000000
This is an override screen which is conditioned on the AC override being active.
Suppose you have two systems for cooling in the same greenhouse compartment. One system with vents and
fans, another with chilled water. When the chilled water cooling comes on, you will want the house sealed up
and the exhaust fans to turn off. This override screen, gives you that flexibility for the fans. A similar screen will
be shown below in the vent programming section.
Irrigation Programming
01 Valve1 Irr
Mode: Scheduled
Hr mm ss
OnTime: 00:00:00
Each channel programmed for Irr (irrigation) can be programmed independently. The first selection is the
Mode
. Pressing the + or – keys cycles you through the mode choices. There are six choices defined as
follows:
Scheduled
This mode is like a time clock where you set the start time, run time and days of the week.
Accumulated Light