31
FUNCTION RANGES &
SETTINGS
PARAMETER SETTINGS
FUNCTION RANGE
FACTORY
SETTINGS
OFF: Desired
Temp Hi
-40 to 212 °F
-40 to 100 °C
120°F
On: Desired
Temp Low
-40 to 212 °F
-40 to 100 °C
30°F
ASd: Anti-short
Cycle Delay
0 - 12 Min 0 min
SF: Sensor
Failure
0= Output De-energized
1= Output Energized
0
bLL: Back light
Level
0 = off
1-10 = on, varying
brightness
10
ADVANCED PARAMETER SETTINGS
Un: Temp.
Units
°F and °C °F
tSb: Temp.
Setback
-50 to 50°F
-30 to 30°C
0°F
So: Sensor
Offset
-5 to 5°F
-3 to 3°C
0°F
HtS: High
Temp. Stop
-40°F -212°F
-40°C - 100°C
120°F
LtS: Low Temp.
Stop
-40°F -212°F
(-40°C - 100°C)
40°F
Some of the A421 controllers settings are
preprogrammed by Nyle before shipment. These
settings along with parameter ranges have been
provided for your reference in the Parameter
Settings table below.
In this mode you can adjust the OFF, On, SF
and ASd Parameters ONLY. Most adjustments
that are needed to run your unit will be
performed in this mode.
Basic Mode Menu:
From the main screen press MENU once. The
screen will display the ashing OFF parameter
indicating that you have entered the menu.
OFF: This parameter indicates your desired high
temperature. When this temp is reached the unit
will enter a cool down mode until the On value is
reached. WARNING: Never set above 150°F.
ON: This parameter indicates your desired low
temperature. When this temperature is reached
the unit will enter heating mode until it reaches
BASIC MODE
The A421 control buttons and display operate
the same in both Basic and Advanced mode.
• When in Menu screens the parameters and
values will ash on and off.
• Use the Arrow keys to navigate through all of
the parameters and values
• To select a parameter press MENU
• To save a selected value, press MENU.
This will automatically bring you to the next
settable parameter
• To exit menus and return to the main screen
press both arrow keys simultaneously.
Notes: If you do not press MENU to save a new
value, the control reverts to the last saved value.
After 30 seconds of inactivity, while in any
screen, the control reverts to the Main screen.
Saved settings remain in the control’s memory
during power interruptions.
SCREEN NAVIGATION
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