Link4 iGrow 800 User manual
iGrow 800 Quick Setup Guide
SETTING UP SETPOINTS
With the iGrow 800 you can program Temperature, Relative Humidity, and C02 Setpoints.
Please view the following video and necessary steps in setting up your setpoints
IGrow 800 –Setpoint Programming
http://www.youtube.com/watch?v=7JGrg_Q1taQ
Cool Setpoint - if the temperature goes above this threshold it will enter into the cooling stages to bring the temperature
back in line within the Normal temperature range (you can have up to 6 cool stages)
Heat Setpoint - if the temperature goes below this threshold it will enter into the Heating stages to bring the temperature
back in line within the Normal temperature range (you can have up to 2 heat stages)
Humidify Setpoint - if the RH reading is below this parameter, the condition is considered too dry, and the system will go
into the humidification stage.
Dehumidify Setpoint - if the RH reading is above this parameter, the condition is considered too damp, and the system will
go into the dehumidification stage.
C02 Setpoint - if the C02ppm level is blow this parameter, the condition will be Low C02, and the system will start injecting
C02 until it reaches the Setpoint plus Deadband.
There are three options in temperature,
humidity and C02 setpoints
•DAY
•NIGHT
•DIF
DAY is active by default. NIGHT and DIF can be
turned on if desired.
To turn on a setpoint that is disabled simply
highlight Set –Night or Set –DIF hit OK
It will display that the setpoint is currently
off. To enable it on press button #5 (turn
setpoint on/off) which will then display the
night setpoint screen
Deadbands
while cooling or heating equipment may be engaged as soon as the measured temperature falls outside of the normal
range, a deadband will prevent the equipment from shutting off when the temperature returns to slightly within the normal
range. Deadbands keeps equipment from cycling on and off repeatedly due to small temperature fluctuations. The same
concept applies with humidification and dehumidification.
SETTING UP TEMPERATURE CONTROL STAGES
For the iGrow 800 - Here is 2 video links to assist you in temperature control.
iGrow 400/800 Setpoint Programming
http://www.youtube.com/watch?v=7JGrg_Q1taQ
IGrow 400/800 - Setting up your equipment for Temperature & Humidity Stages.
http://www.youtube.com/watch?v=7CCSDeac5hY
With the iGrow 800 Controller, you can program a cooling temperature target called a “Cool Setpoint” and a heating
temperature target called a “Heat Setpoint”. The temperature range between these two targets is called the “Normal”
temperature range or stage.
If the greenhouse temperature is within the Normal temperature band usually none of the cooling or heating equipment is
on. However, some circulation fans (often called horizontal air flow (HAF) fans) may be active to maintain air movement
within the greenhouse environment. Whenever the temperature within the greenhouse moves above the cool setpoint, or
below the heat setpoint (falls outside the Normal temperature range) the iGrow 800 will enter cooling or heating stages to
bring it back in line. With the iGrow 800 you can program up to six cooling and two heating stages. These stages go from
Cool 1 to Cool 6 and Heat 1 to Heat 2. Cool 1 and Heat 1 are the least aggressive with Cool 6 and Heat 2 the most
aggressive.
In your program you will determine what equipment you want to be active in each of the stages. When the air temperature
in the greenhouse rises above the Cool Setpoint, the system enters the first stage of cooling, referred to as Cool 1. If the
temperature continues to rise, the system will enter the second stage, Cool 2, then the third stage, Cool 3 and so forth. At
each increasing cooling stage, more cooling will be brought to attempt to bring the air temperature below the cool setpoint
and within the target “Normal” temperature range. Heating works the same way.
Here is an example for a Temp Control Strategy, setting up your Day & Night Temperature Setpoints
And how the setpoints work with stages, ramping and deadbands implemented.
Here is an example for a Temp Control Strategy, assigning equipment to various Temp Stages
SETTING UP HUMIDITY CONTROL STAGES
With the iGrow 800 you can Control Relative Humility within your Greenhouse Environment.
Note: Relative Humidity staging overrides Temperature staging.
Here is a video link that guides you thru the control process.
iGrow 400/800 Humidification Control Programming
https://youtu.be/1AqGt8X6htk
To get to your Humidity staging screen hit OK->4. Stages->2. Humidity Stages
Now in the Humidity Stages Screen you have:
Humidify: is engaged when the humidity is below the
Humidify (Low humidity) setpoint.
Dehumidify: is engaged when the humidity goes above the
Dehumidify (High Humidity) setpoint.
Cold De-humidify: is engaged when out temp goes below the
threshold value set in advanced screen.
The arrows (buttons 5 thru 8) are used for moving
the highlight to the desired stage. The Setup and OK buttons
are used to select or deselect the highlighted stage for a
device. For dual channel devices (vents/curtains), the second
channel is disabled as shown.
For Curtains: 0% curtain is uncovered, 99% curtain is
covered, No Change: Device doesn’t have an affect in that
stage.
For Vents: 0% vent is fully closed, 99% vent is fully open, No Change: Device doesn’t have an affect in that stage.
For On Off Devices: Override Off: Indicates device is Off in that stage, Override On: Indicates device is on in that stage
No Change: Device doesn’t have an affect in that stage.
ADVANCE HUMIDITY SETTINGS:
To get to the advance Humidity Settings Screen: from home screen, hit OK->3. System Setup->10. Advance Settings-
>1.Advance Humidity Settings.
With this screen you have the option of cycling the
humidification and dehumidification stages.
For example, suppose the zone humidity exceeds the
humidity threshold. Without the cycling option, your
system will remain in the dehumidification stage until
the humidity falls below the dehumidification threshold
by at least 2% RH. In some cases it may be impossible to
get below your humidity threshold. For these
circumstances and for other cases, it would be helpful to
cycle in and out of the humidity control override. This
screen gives you the capability to do so.
The options are:
1. Set the override ON duration in minutes and seconds
2. Set the override OFF duration in minutes and seconds
3. Set a low temperature threshold.
Override On Duration: Is the time for the override to remain active
Override Off Duration: Is the time for override to remain inactive/off
Buttons #1 - #4 can be used to select override on/off. Wheel can be used to change the values.
LowOutTemp: If temperature falls below this value, override will trigger.
Button #5 is used to select low out temp option. Wheel can be used to change the values.
The LowOutTemp threshold is the outside temperature below which the dehumidification stage will revert to its Cold
dehumidification state. For example, you may want to dehumidify but if it’s very cold outside, you may want to turn on the
heat instead of open a vent and turning on a fan.
Cycling Program if no Humidity Sensor is present: This humidity settings option can be useful in other applications even if
you do not have a humidity sensor. For example, you may want to do misting control with a particular output, You can set
up a “software” humidity sensor, a humidity time window and threshold so that the cycling will take place during your
selected time period.
Also, here is a list of videos, so you can program your controller with confidence, and also have an understanding of what
Setpoints are for, Staging of your equipment in Temperature and Humidity Stages, as well as how to Program your
equipment.
IGrow 400/800 - Sensor Setup
https://www.youtube.com/watch?v=wzFG-Nm0NcM
IGrow 400/800 –Setpoint Programming
http://www.youtube.com/watch?v=7JGrg_Q1taQ
IGrow 400/800 - Setting up your equipment for Temperature & Humidity Stages.
http://www.youtube.com/watch?v=7CCSDeac5hY
IGrow 400/800 - Setting up your equipment ON/OFF Devices
http://www.youtube.com/watch?v=YlFGSybTd_c
iGrow 800 Relay Output Design and Understanding
https://www.youtube.com/watch?v=czn80AFXXUk
IGrow 400/800 - Curtain Programming
https://www.youtube.com/watch?v=oTvHn6hfXW0
IGrow 400/800 - Equipment Setup (VENTS)
https://www.youtube.com/watch?v=e7KZbeXkP9w
IGrow 400/800 Equipment Overriding Video
https://www.youtube.com/watch?v=gz892PaLuTM
IGrow 400/800 Sensor Troubleshooting
https://www.youtube.com/watch?v=KNN4oBqh8Vc
IGrow 400/800 Save & Restore Configurations
https://www.youtube.com/watch?v=33682fwe1yc
iGrow 400/800 Humidification Control Programming
https://youtu.be/1AqGt8X6htk
iGrow 400/800 Installing the Link4 Weatherstation
https://youtu.be/9rjKr0XGVxw
iGrow 800 Installing the 4 Output Expansion Board
https://youtu.be/ornz3yRS-vA
iGrow 800 Programming Expansion Outputs
https://www.youtube.com/watch?v=OjRvULzwwvk
LinkConn 100 Software Overview
https://www.youtube.com/watch?v=2VUD426h6Co
iGrow 400/800 Connecting with The iGrow Cloud
https://youtu.be/DobvKzIW56E
iGrow 400/800 Connecting LinkConn 100 Software
https://youtu.be/-CR0bpSkwd0
iGrow 400/800 Networking Multiple Controllers
https://youtu.be/07tg4k-fa_8
iGrow 400/800 Restoring to factory defaults
https://www.youtube.com/watch?v=50zrFZFCjmI
iGrow 400/800 Series Integrated Panel Overview
https://www.youtube.com/watch?v=1WSoWC82850
iGrow 400/800 Installing the DISM Digital Integrated Sensor Module
https://www.youtube.com/watch?v=GfmoFGw9GwM
iGrow 400/800 Programming C02 Control
https://www.youtube.com/watch?v=2EcvWzpCf4Y
iGrow 800 Setting up Password Protection
https://www.youtube.com/watch?v=eSG0ORt26g0
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