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OPERATION
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 tem-
perature under most all conditions. However, if you find your sys-
tem 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 pro-
gram 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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Hunter’s Auto Recovery feature meets the ENERGY STAR
®
guide-
lines for energy efficiency by allowing the heating or cooling sys-
tem to recover gradually from an energy-saving setpoint tem-
perature 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
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
■ When the thermostat is
in Auto Recovery mode,
the display will alternate
“RECOVERY” with the
day, and the program
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.
■ 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).
Recovery
PM
System Fan
Te mp
2