20)Heat Temperature Limit Range – This feature adjusts the highest setpoint temperature for heat.. The default setting is 99°F.. It can be changed between 62°F and
98°F by pressing the 
or key.. The "temperature limit" icon will be displayed to the left of your setpoint temperature when using this feature.. The "temperature limit" icon will flash if an attempt is made to adjust the temperature beyond the range selected..
21)Cool Temperature Limit Range – This feature adjusts the lowest setpoint temperature for cool.. The default setting is 45°F.. It can be changed between 46°F and
82°F by pressing the 
or key.. The "temperature limit" icon will be displayed to the left of your setpoint temperature when using this feature.. The "temperature limit" icon will flash if an attempt is made to adjust the temperature beyond the range selected..
22)Keypad Lockout – This step allows you to select the type of lockout or limited range security required.. If no lockout or limited range security is required, press 
to
advance the menu..
Three security settings are available in this menu item.. Use the 
or keys to select the lockout desired.. Lockout selections are:
"Keypad Lockout and L" = Total Lockout.. Total Lockout locks all keys..
"Keypad Lockout and P" = Partial Lockout.. Partial Lock- out allows only the 
or 
keys to operate within your set temperature limits..
"Temperature Limit/Keypad Lockout" prevents changing the temperature limits in the Configuration Menu. .
Keypad Lockout Combination Number Selection Display will read "OFF" "Keypad Lockout"..
Skip this step and continue through the configuration menu items 23 thru 26 if you require an Air Filter Change out indicator or Humidifier Pad Change out indicator by
pressing the 
button to advance..
Return to this point when you are ready to start your selected
Pressing | or |
| keys to select ON.. |
| |||
Press | .. Display will read "000".. | ||
Pressing | or |
| keys to select your keypad lockout |
| |||
combination number.. Note: "000" is not a valid combination choice..
Record the number you select for future use.
Press 
to exit the menu.. The security feature you select will start in 10 seconds.. The system button will remain active for 10 seconds to allow setting Heat, Off, Cool or Auto..
INSTALLER/CONFIGURATION MENU
23Select Fast Second Stage ON or OFF – In the run mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F (2°C) or more above the actual temperature using 
the second stage will energize immediately.. With FA OFF, second stage will not energize until the setpoint tempera- ture is 1°F or more above actual temperature for more than ten minutes.. The Fast Cool feature (FA Cool) pro- vides the same controls when the setpoint temperature is
lowered..
24)Select Remote Temperature Sensor – This control allows one wired remote temperature sensor (indoor,
Factory default is off.. Select Remote On and Remote in (for indoor) or Outdoor Remote..
Local Temperature Sensor disable – This is applicable only when indoor remote temperature sensor is enabled.. Factory default is On LS.. You can make it Off LS if you
desire by using 
or touch keys.. Then, only the indoor remote temperature reading will be used for control. .
25)Select Dual Fuel Feature and Setpoint – This feature is applicable only in heat pump modes.. An outside remote sensor must also be installed.. When the outside tem- perature falls below the selected setpoint temperature, dF, the thermostat will switch to gas heat and shut down
the compressor.. Use the 
or keys to select the desired setpoint temperature in the range of 5 to 50.. Factory default is 5, which disables this feature.. See Dual Fuel Temperature and Setpoint in Programming section. .
Select Compressor Delay – When dF is enabled, the shut down of the compressor(s) is delayed for a time period after the auxiliary stage is energized.. This delay, Cd, is factory set at 60, but can be set in the range of 0 to 99..
26)Select Change Filter Run Time – The thermostat will display "Change Filter" after a set time of blower operation.. This is a reminder to change or clean your air filter. This time can be set from 25 to 1975 hours in 25 hour increments.. A selection of OFF will cancel this feature.. When "Change Filter" is displayed, you can clear it by pressing Clean Display.. In a typical application, 200 hours of run time is approximately 30 days..
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