iGrow 1800 Installation Guide
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Link4 (714) 524-0004
Pressing the Enter key again will take you to the following screen:
Cool/Heating Stages
Cool Stages 6
Heat Stages 6
Stage Width 1.0ºF
On this screen you will select the maximum number of
cooling and heating stages
that you intend to use.
The up and down arrow keys are used to increase or decrease the amount of stages for cooling and heating. If,
for example, you select 2 heating stages, then in the remainder of the programming only 2 heating stages will
be displayed
The third selection is the
Stage Width
. This is the number of degrees between each of your stages, sometimes
referred to as “Stage Separation”. Typically, users select either 1 or 2 degrees.
Setup Deadbands
Cool Deadband 1.0ºF
Heat Deadband 1.0ºF
RelHumDeadband 3%
BHeat Deadband 1.0ºF
Deadband
This is sometimes called “hysteresis” band. For
cooling
, it is the number of degrees the temperature needs to
drop from the lower boundary of its current stage before it switches to the lower stage. Without Deadbands,
equipment tends to cycle frequently & constantly change stages when the temperature approaches the set
points. When a large value is used, setpoints may not be maintained. Typical values might be 1 to 2 degrees
F. For
heating
it is the number of degrees the temperature needs to rise above the temperature boundary
before it switches to a lower heating stage.
RelHum Deadband
This is the RH% the humidity must drop below the dehumidification threshold before exiting the dehumidification
state. It also is the RH% the humidity must rise above the humidification threshold before exiting the
humidification threshold.
Bheat Deadband
This is the number of degrees that the bottom heat temperature must rise above the bottom heat temperature
setpoint or threshold before the heat valve switches off. Typical values might be 1 degree F or less.
Setup Location
