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Heat Sentinel Mode
To prevent the room from overheating (Zoneline
must be powered), cooling is energized when the
indoor temperature is sensed to be 85°F to maintain
room temperature below 85°F in any operation
mode except heating mode. The Heat Sentinel
mode is disabled when the room temperature
reaches 80°F. The indoor fan runs at high speed. An
auxiliary set mode is provided to enable the heat
sentinel. If the auxiliary mode is in the OFF position
the heat sentinel function is disabled. The factory
default of the mode is OFF.
Freeze Sentinel Mode
To prevent the room from freezing, the electric
heater is energized to maintain the room
temperature above 41°F regardless of any operation
mode.
The freeze sentinel mode is disabled when the room
temperature reaches 46°F.
The indoor fan runs at high speed. An auxiliary set
mode is provided to enable the freeze sentinel. If
the auxiliary mode is in the OFF position, the freeze
sentinel function is disabled. The factory default of
the mode is ON.
Control Lock Out
The control panel can be locked out from the user
being able to change the operating mode of the
Zoneline.
While the Zoneline is operating in the desired mode,
press and hold the "Display Show/Hide" button for
10 seconds to lock the control to this setting.
The display will then ash the mode LED and
temperature that was locked 5 times and then go
dormant. Any key press after this will result in the
mode LED and temperature to ash 5 times and
then go dormant. Pressing the "Display Show/Hide"
button for 10 seconds will unlock the control and
resume normal operation.
The Zoneline will come back on in the locked mode if
power is lost and restored.
Auxiliary Controls
The RED auxiliary set button is located behind the
room cabinet, below the user interface.
There are 10 di erent modes that can be set using
the auxiliary set button.
To change modes, press the red AUX SET button.
"AU" appears on the display. Press the MODE button
on the control until the rst digit in the display
shows the number corresponding to the desired
mode being changed. Press the up (+) or down (-) to
make the HEAT or COOL selection where applicable.
Press the AUX SET button to con rm the selections
once all changes have been made.
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