Chapter 4: Programming
66
Phason
Programming the zones
Programming the zones means entering the target temperatures for each zone. There are two
options for the zone temperatures:
Group set points (below)
Growth curves (on page 67)
You can set up both group set points and growth curves. If a growth curve is enabled for a zone, the
control uses the growth curve settings. If there is no growth curve for a zone, the control uses the
group set points.
Other options
In addition to the group set points and growth curves, you can program three optional features:
Tunnel mode set point (en page 70)
Temperature setback (on page 71)
Humidity control limits (on page 73)
Setting the group set point
A
group set point
is the desired or target temperature for a zone. The
individual set points
for each
variable and relay stage will be adjusted relative to the
group set point
for that zone.
Make sure you
set the group set point before setting the individual set points.
For example, say the
group set point
for zone 1 is 80°F, a variable-stage fan
set point
is 5 degrees
higher (85°F), and a single-stage heater
set point
is 7 degrees lower (73°F). If you lower the
group
set point
to by 5 degrees to 75°F, the
set points
for the fan and heater will also be lowered by 5
degrees to 80°F and 68°F respectively.
Once a group set point is set, it remains at that temperature until you change it, or until an enabled
growth curve adjusts it.
on page 131 when setting up groups set points.
To program a group set point
1.
From the Main Menu, select
Settings
(1).
2.
From the Settings menu, select
Group Setpoint
(1).
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