INSTALLER/CONFIGURATION MENU
specify. Heating will start 5 minutes early for every 1° of temperature required to reach setpoint.
Example: E On is selected and your heating is pro- grammed to 65° at night and 70° at 7 AM. If the building temperature is 65°, the difference between 65° and 70° is 5°. Allowing 5 minutes per degree, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more time per degree, because it takes longer to reach set tempera- ture.
5, 6 & 7) Cycle Rate Selection – The factory default setting for Heat and Cool modes, SS1, MS2, is medium cycle (ME). For Heat Pump, HP1, HP2, the default setting is medium (ME). For Emer (Aux) the default setting is fast cycle (FA).
To change cycle rate, press the 
or 
button.
Cycle rate differentials for different settings are:
MODE | Fast | Medium | Slow |
| FA | ME | SL |
Heat (SS1, MS2) | 0.4°F | 0.6°F | 1.7°F |
Cool (SS1, MS2) | 0.9°F | 1.2°F | 1.7°F |
Heat Pump (HP1, HP2) | 0.9°F | 1.2°F | 1.7°F |
Emer (HP1, HP2) | 0.6°F | - | 1.7°F |
8)Select Compressor Lockout CL OFF or ON – Selecting CL ON will cause the thermostat to wait 5 minutes be- tween cooling cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system. When the thermostat compressor time delay occurs, it will fl ash the setpoint for up to five minutes.
9)System Mode Configuration – This thermostat is config- ured for Heat and Cool (SYSTEM switch with Cool Off Heat) default. It can also be configured for Heat and Cool with Auto changeover (Heat, Auto, Cool, Off), Heat only with fan (Off Heat), Heat only without fan, Auto only (Auto Off), and Cool only (Cool Off).
10)Select Backlight Display – The display backlight improves display contrast in low lighting conditions. When the "C" ter- minal is powered, selecting backlight CdL ON will keep the light on continuously. Select backlight OFF will turn the light on momentarily after any button is pressed. When the "C" terminal is not powered, the light will be on momen- tarily after any button is pressed no matter whether the backlight is selected ON or OFF.
11)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 dis- play temperature to match your previous thermostat. The current or adjusted room temperature will be displayed.
12)Select F° or C° Readout – Changes the display readout to Celsius or Fahrenheit as required.
13)Select Audio Prompting (Beeper) On or Off – Factory default setting is on (b, On). If you wish to turn off the beeper select OFF.
14)Program Options: Selects confi guration for 7 day (7) or 5/1/1 day (3) programming or
The programs per week can be changed to 3 or 0 by
pressing the 
or 
buttons. A selection of 0 days for
15)Program Steps per day – This control can be confi gured for 4 or 2 program steps per day. Default is "2 PS" and can be toggled between 4 PS and 2 PS.
16 & 17) Select Automatic Schedule – 1F85 only, with just one touch of the Auto Schedule key this feature allows you to program a desired comfort temperature into all the program periods along with a 6° set back for night periods of both Heat and Cool programs. Factory default is "On" for both. When Heat AS On and Cool AS On are acti- vated while in Heat or Cool mode, select desired setpoint temperature and press Auto Schedule. This value will be copied into all the morning, day and evening program periods. The night program periods will have a 6°F set back.
18 & 19) Select Fast Second Stage ON or OFF – Heat pump or
above the actual temperature using 
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 minutes. The Fast Cool feature (FA Cool) provides the same controls when the setpoint temperature is lowered.
20)Select Remote Temperature Sensor – This control allows one wired remote temperature sensor (indoor,
Local Temperature Sensor disable – This is applicable only when indoor remote temperature sensor is enabled.
Factory default is Loc On. You can make it Loc Off if you
desire by using 
or 
buttons. Then, only the indoor remote temperature reading will be used for control
21)Select Daylight Saving Time Calculation – This feature will allow the thermostat to calculate the DST automati-
cally and apply it to the Real Time Clock display. Default
On. Use 
or 
touch keys to select the feature OFF.
22)Keypad Lockout – This step allows you to select the type of lockout or limited range security required. If no lock- out or limited range security is required, press MENU to advance the menu.
Three security settings are available in this menu item.
Use the 
or 
buttons 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 
buttons to operate within your set temperature limits.
"Keypad Lockout and Limit" prevents changing the temperature limits in the Confi guration Menu.
Press Menu after selecting the type of lockout.
"Keypad Lockout Combination Number Selection" Display will read "000" "Keypad Lockout". Note: "000" is not a valid combination choice.
Skip this step and continue through the remaining confi gu- ration menu items if you require an Air Filter Change out indicator or Humidifi er Pad Change out indicator by press- ing the MENU button to advance.
Return to this point when you are ready to start your selected
Press 
. Display will read "001".
Pressing 
or 
buttons to select your keypad lock- out combination number.
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