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FEATURES
INSTALLER SYSTEM TESTS
Four tests are available for the Installer to check the HVAC
system after thermostat set−up has been completed.
1. Installer Test Cool
2. Installer Test Fan
3. Installer Test Heat
4. Installer Test Emergency Heat
Please refer to the Installation Instructions for detailed
information.
SPECIFICATIONS
For use with residential equipment only.
Temperature Setting Range
Heating − 40 to 90°F (4.5 to 32°C)
Cooling − 50 to 99°F (10 to 37°C)
Power Supply
24VAC (20 to 30VAC maximum), 50/60Hz
or 3 AAA batteries only (furnished)
Clock Accuracy
± 1 minute per month
Terminals
1 heat / 1 cool single stage
R, C, W, Y, G, O/B, L, S1, S2
3 heat / 2 cool multi−stage
R
, R, C, W, W
, Y, Y
C
2
2
Dimensions (H x W x D)
5−1/2 x 7−7/8 x 1−5/16 in. (140 x 200 x 33 mm)
REVISIONS
Sections
Front page
, G, O/B, L, E, AUX, S1, S2
®
Removed Elite
designation
OPTIONAL ACCESSORIES − ORDER EXTRA
OUTDOOR TEMPERATURE SENSOR
When installed outdoors, sensor (X4148) allows
thermostat to display outdoor temperature.
NOTE − Sensor is required for dual fuel operation if
thermostat controls dual fuel system operation.
Description of Change
.
Elite
®
Digital Touchscreen Thermostat / Page 3
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