CONFIGURATION MENU
Press the System button until OFF is displayed, then press the 
and 
simultaneously
INSTALLER/CONFIGURATION MENU
| Press | Displayed | Press or |
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Step | Button(s) | (Factory Default) | to select | Comments |
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1 | System | MS 2 | SS1, HP2, HP1 | Selects Single stage, |
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| (Single stage or |
2 | System | FA | SL | Selects Fast or Slow Cycle Selection |
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3 | System | CL | CL | Selects Compressor Lockout CL OFF or ON |
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| (OFF) | (ON) |
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4 | System | CDL | CDL | Selects Backlight Display |
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| (ON) | (OFF) |
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5 | System | FA | FA | Selects Fast Second Stage ON or OFF |
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| (ON) | (OFF) |
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6 | System | 0 FLTR | Selects filter replacement run time | |
7 | System | 0°F | 4 LO to 4 HI | Selects Temperature Display Adjustment 4 LO to 4 HI |
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| (Room Temperature) |
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8 | System | °F | °C | For °C selection |
9 | System | LR | LR 62 to LR89 | Selects Limited HEAT range |
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| (90) |
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10 | System | LR | LR 46 to LR 82 | Selects Limited COOL range |
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| (45) |
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11 | System | CA | CA | Feature Not Available |
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| (OFF) | (ON) |
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12 | System | (OFF) | (ON) | Selects Keypad Lockout |
13 |
| 0 | 001 to 999 | Selects Keypad lockout combination number |
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| Press System to set code |
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14 | System |
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| Returns to the OFF position |
4)Select Backlight Display – The display backlight improves display contrast in low lighting conditions. When the "C" terminal is powered, selecting backlight CdL ON will keep the light on continuously. Select backlight OFF will keep the light on momentarily after any key is pressed. When the "C" terminal is not powered, the light will be on momentarily after any key is pressed no matter the backlight is selected ON or OFF.
5)Select (Fast) Second Stage ON or OFF – In the run mode, if the setpoint temperature is manually raised by 3°F (2°C)
or more above the actual temperature with the 
, and the fast second stage feature is enabled, FA ON, the second stage will energize immediately. With FA OFF, second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more than ten min- utes.
6)Select filter replacement run time – The thermostat will display FLTR after a set time of operation. This is a remind- er to change or clean your air filter. This time can be set from 0 to 1950 hours in 50 hour increments. A selection of 000 will cancel this feature. When FLTR is displayed, you can clear it by pressing HOLD and RUN at the same time. This resets the timer and starts counting the hours until the next filter change. Contact your system manufacturer for a specific replacement/maintenance interval.
7)Select Temperature Display Adjustment 4 LO to 4 HI – Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat. The cur- rent or adjusted room temperature will be displayed on the left side of the display.
8)Select F° or C° Readout – Changes the display readout to Centigrade or Fahrenheit as required.
9)Limited Heat Range – This feature provides a maximum setpoint temperature for heat. The default setting is 90°F. It can be changed between 62°F and 89°F by pressing the temperature up or temperature down key.
10)Limited Cool Range – This feature provides a minimum setpoint temperature for cool. The default setting is 45°F. It can be changed between 46°F and 82°F by pressing the temperature up or temperature down key.
11)This feature not available.
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