Functions Ranges & Settings; Parameter Settings; Screen Navigation; Basic Mode - Nyle C25W Installation, Operation, Service, Maintenance, Limited Warranty

FUNCTION RANGES &
SETTINGS
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.

PARAMETER SETTINGS

FUNCTION
OFF: Desired
Temp Hi
On: Desired
Temp Low
ASd: Anti-short
Cycle Delay
SF: Sensor
0= Output De-energized
Failure 1= Output Energized
bLL: Back light
1-10 = on, varying
Level
ADVANCED PARAMETER SETTINGS
Un: Temp.
Units
tSb: Temp.
Setback
So: Sensor
Offset
HtS: High
Temp. Stop -40°C - 100°C
LtS: Low Temp.
Stop (-40°C - 100°C)
36
FACTORY
RANGE
SETTINGS
-40 to 212 °F
120°F
-40 to 100 °C
-40 to 212 °F
30°F
-40 to 100 °C
0 - 12 Min 0 min
0 = off
10
brightness
°F and °C °F
-50 to 50°F
0°F
-30 to 30°C
-5
to 5°F
0°F
-3 to 3°C
-40°F -212°F
120°F
-40°F -212°F
40°F

SCREEN NAVIGATION

The A421 control buttons and display operate
the same in both Basic and Advanced mode.
• When in Menu screens the parameters and
values will flash 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.
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.
0
Basic Mode Menu:
From the main screen press MENU once. The
screen will display the flashing 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
the OFF value again.

BASIC MODE

31