Owner's Manual
6 49-7774
USING THE ZONELINE
Controls
About Your Heat Pump (AZ65 only)
Heat pumps can save money by removing heat from the 
outside air—even when the outside temperature is below 
freezing—and releasing that heat indoors.
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don’t change the room thermostat by more than one degree 
at one time. Raising the heat setting 2–3 degrees will cause 
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reach the new temperature setting quickly.
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pumps and cost more to operate.
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setting to prevent short cycling.
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compressor cycles off.
When the outdoor temperature is lower than 25°F, heat is 
provided by the electric heater instead of by the heat pump.
Temp Control
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same level of comfort. 
Press the + pad to raise the temperature.
Press the - pad to lower the temperature.
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room temperature.
Fan, Mode and Operation Control
FAN—Sets the fan operation for HIGH or LOW.
MODE— COOL—For cooling 
FAN—For fan-only operation 
HEAT—For heating
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Sentinel features still function if active. See the 
Freeze/Heat Sentinel section on page 8.
USE WALL THERMOSTAT—7KLV/('ZLOOOLJKWXSZKHQ
the unit is controlled by a wall thermostat. See page 9 for 
details.
Control Lock Out
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changing the operation mode of the unit.
While the unit is in the desired operating mode, press and 
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lock the control and the desired setting. Any key press after 
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locked to flash 5 times and then go dormant.
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normal operation.
NOTE: The temperature display will flash if the control 
panel is locked (see Control Lock Out section).
NOTE:  When switching between modes, it may take 
several minutes to completely change operation.
Quick Heat Recovery
Activates each time the thermostat is switched from OFF or 
COOL mode to HEAT mode. Electric heaters are energized 
until the thermostat set point is reached. On heat pump 
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call for heat.










