960-3100-00
iPonic 614 Installation Manual
26
Ramping
You also have the option of a temperature
ramp
between the time setpoints. When enabled, each setpoint time
period ends with a ramp time. The benefit of ramping is that it allows smooth transitions within the greenhouse
by avoiding aggressive heating and cooling stages so that the plants don’t experience temperature shock.
Ramping also saves energy, which translates directly into lower operating costs. Of course, the ramp times can
be set to 0 as they are by default and in this case there will be an immediate step transition in the set points.
In Figure 2.1, the start time is 9:00am with a 60-minute ramp time. The ramp time enables a smooth transition
of the target temperatures while transitioning between the setpoint time periods.
Setting a Ramp Time between Time Setpoints
Menu->SystemSetup->6. Advanced->button 7 for Adv. Setpoint Settings->button 3 to Enable/Disable Ramping
Menu->1. Current Setpoints->5. Setpoint Times->buttons 6 and 7 set ramp time lengths
Air Exchange/Air Dump
You may want your ventilation fans to cycle fresh air throughout your environment from time to time even
though the temperature of the room is not reaching the cool setpoint. To enable this cycle:
Menu->SystemSetup->6. Advanced->button 5 for Air Exchange->button 1 to enable air dump, then
buttons 2 and 3 to set the lengths of the vent fan on and off periods
Advanced CO
2
Control
Switching between Tank and Generator
When you initially chose a CO
2
output in Equipment Setup, you were prompted to choose a CO
2
equipment type of either CO
2
Generator or CO
2
Tank. To view or change your selected CO
2
equipment
type, take the following steps.
Menu->SystemSetup->6. Advanced->Global CO2 Settings->Switch to Generator/Switch to Tank (no. 5)
CO
2
Tank Cycle Settings Set On/Off Time
If a CO
2
tank is chosen as your CO
2
equipment type, by default it will cycle on and off for set periods of
time when the environmental CO
2
falls short of the target level. The default cycle is 10 seconds on and 30
seconds off, but these times can be changed by following these steps.
Menu->SystemSetup->6. Advanced->Global CO2 Settings->button 6 for on time
Menu->SystemSetup->6. Advanced->Global CO2 Settings->button 7 for off time
CO
2
Deadband
While CO
2
equipment may be engaged as soon as the measured CO
2
level falls short of the target, a
deadband will prevent the equipment from shutting off when the CO
2
level returns to slightly above the
CO
2
target. By default this level is 25ppm above the CO
2
target. To change this, follow these steps.
Menu->SystemSetup->6. Advanced->Global CO2 Settings->button 1 to change deadband by 1 ppm
(press 1 to change increment)
Fan Cut
By default your CO
2
equipment will not turn on when an installed vent fan is running, a setting known as
“Fan Cut Off Enabled”. This is to prevent you from wasting CO
2
by generating it just to push it out of your
growing environment. If you are not concerned with CO
2
loss while your fans are running you can disable
this feature with the following steps.
