Installation Instructions

8
Auxiliary controls on your Zoneline
Constant ON Fan
Press MODE until a 4 appears in the first digit of the
display to set the fan to run continuously at high
speed - even if the unit is turned off.
Press the - pad for OFF “ “ or the + pad for
ON “ .” This is shown in the second digit of the display.
Press AUX SET to lock in your selection and exit AUX SET
mode, or press MODE to continue setting other functions.
The default setting for Mode 4 is OFF.
MODE 4
Freeze Sentinel/Heat Sentinel
With power to the unit and Freeze Sentinel activated, the
unit automatically provides heat without user interface.
This prevents potential plumbing damage by turning the
heater and indoor fan ON at 41ºF and then OFF once the
room temperature reaches 46ºF.
When Heat Sentinel is activated, the unit automatically
provides cooling without user interface. This prevents an
excessively hot room by turning the air conditioner ON at
85ºF and then OFF once the room temperature reaches
80ºF.
Press MODE until a 3 appears in the first digit of the display
for Freeze Sentinel mode. The COOL LED light on the main
control will be on. Press MODE again to change to the Heat
Sentinel. The HEAT LED light on the main control will be on.
Press the - pad for OFF “ “ or the + pad for ON “ “. This
is shown in the second digit of the display. Press AUX SET
to lock in your selection, and exit AUX SET mode, or press
MODE to continue setting other functions.
In the default setting for Mode 3, Heat Sentinel is off,
Freeze Sentinel is on.
NOTE: These functions are active whenever the unit is
plugged in, even if the unit is turned off.
MODE 3
Freeze Sentinel OFF
Freeze Sentinel ON
Heat Sentinel OFF
Heat Sentinel ON
Constant
Fan OFF
Constant
Fan ON
Fahrenheit / Celsius
This feature allows the individual to switch the temperature
units between Fahrenheit and Celsius on the display.
Press MODE until a 2 appears in the first digit of the display
for Fahrenheit/Celsius mode.
Press the - pad to select Celsius or the + pad to select
Fahrenheit. The individual will see an F for Fahrenheit or a
C for Celsius in the second digit of the display based on the
selection.
The default setting for Mode 2 is Fahrenheit.
MODE 2
° F
° C