4
•
GAS / ELECTRIC:
Configures the thermostat to either gas/oil or electric heating systems.
•
C / F:
Sets the display in either Celsius or Fahrenheit.
•
NORM / HP:
Configures the thermostat for normal heating/cooling systems or heat pump systems (sin-
gle stage).
10)
Attach the thermostat body to the back plate by resting the top of the thermostat body on the two clips on
the upper portion of the back plate. Then gently press the front body into place until the bottom locking
tab snaps into place. NOTE: The terminal board pins must be properly aligned with the sockets on the
terminal board (on the back plate) in order for the front body to properly snap into place.
11)
Set the system switch to the OFF position.
12)
Set the fan switch to the AUTO position.
13)
Open the front thermostat door and open the battery compartment door; install 2 AA Alkaline batteries
(included).
14)
Remove the clear plastic film from the display.
Testing The New Thermostat
WARNING!
•
Do not switch the system to cool if the outdoor temperature is below 50 F (10 C). This may damage the
cooling system and may cause personal injury.
•
This thermostat is equipped with automatic compressor protection to prevent damage due to short
cycling. The short cycle protection provides a 5-minute delay between heating (heat pump models) or
cooling cycles to prevent the compressor from being damaged.
1)
Restore the system power. The LCD (liquid crystal display) will display
the room temperature. The LCD will illuminate at the touch of the red
or blue arrow keys. LCD will return to its normal state after 10 sec-
onds.
2)
Set the fan switch to the
ON
position. The system blower should start.
3)
Set the fan switch to the
AUTO
position. The system blower should stop.
Image shows
room temperature of 78.
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