41652_model44760_web.pmd

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OPERATION

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SPAN Settings

STAGE 1

Your thermostat is set at the factory to cycle at 1°F (0.5°C) above and below the set temperature in Stage 1. (Span = 2.) This setting has been designed to provide a comfortable room temperature under most all conditions. However, if you find your system cycling too fast or too slow, then the Span can be adjusted to modify the cycle time. Refer to the Option Menu Stage 1 Span selection on page 17.

Span = 1. This decreases the cycle time by causing your system to run shorter.

Span = 3. This increases the cycle time by causing your system to run longer.

The Span settings remain the same for both HEAT and COOL.

The Span can be changed at any time and is independent of program times or temperatures.

When the thermostat is powered on or the Reset key is pressed, the Span is reset back to setting 2.

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Auto Recovery

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Hunter’s Auto Recovery feature meets the ENERGY STAR® guidelines for energy efficiency by allowing the heating or cooling system to recover gradually from an energy-saving setpoint temperature to a comfort setpoint temperature.

Auto Recovery calculates how early to turn your system back On, so that the room temperature is already comfortable by the start of the comfort temperature program period. Auto Recovery works in both Heat and Cool modes.

For example, in Heat mode, you could have the following programs:

Program #4 (Overnight)

Program #1 (Morning)

Set Temp = 60°F

Set Temp = 68°F

Time = 10PM

Time = 6AM

■ When the thermostat is

Recovery

2

in Auto Recovery mode,

the display will alternate

 

Temp

 

 

“RECOVERY” with the

PM

 

day, and the program

System

Fan

indicator will flash.

 

 

Details of Auto Recovery Operation:

Auto Recovery can be disabled by selecting “NO” in the Op- tion Menu. Refer to page 17.

Auto Recovery will not operate if Permanent hold, Vacation hold Temporary hold or Home Today is in operation. It will also not operate if the thermostat resets due to AC power loss with no backup batteries.

The room temperature fell to 60°F overnight. Rather than having the thermostat turning on at 6AM, Auto Recovery would note the temperature difference between 60°F and 68°F and turn the Heat on approximately 30 minutes early. Therefore, the room temperature at 6AM would be about 68°F instead of 60°F.

Auto Recovery can be canceled manually if RET CLEAR is pressed during the recovery process. If a recovery process is canceled manually then the recovery process will not start again until the next program period starts (an exception is that if time or program is changed then the thermostat will check Auto Recovery conditions immediately).