1 & 2)Keypad Lockout – This menu selection will display “Lk” and “OFF” (default, keypad not locked out). The 
and 
are used to toggle the selection between OFF and “L” (keypad locked out). When the keypad lockout selection is enabled “L”, and the MENU button is pressed again, the display will indicate the number “0” (default, still disabled) in the time digits. The 
and 
are used to set the combination number from 0 to 999. If a combination of 0 is selected and the MENU button is pressed, the menu will be exited and keypad will not be locked. If 1 to 999 is selected and the MENU button is pressed, the combination is stored into memory and the menu is exited. The “LOC” will display designat- ing keypad locked with a valid combination. The SYSTEM button will operate for 10 seconds after the menu mode is exited to allow the user to change the mode from “OFF” to the desired SYSTEM mode.
While the keypad is locked out, a press of MENU will en- ter the configuration menu. The first menu item displayed
is the combination code “0”. The 
or 
keys are used to set the combination unlock number from 0 to
999. If the unlock number matches exactly with the com- bination lock number stored in memory when the MENU button is pressed, the keypad is unlocked and the “LOC” is removed. If the unlock number does not match when the MENU button is pressed, the combination returns to “0” for another attempt to set the unlock code. To exit the menu without unlocking the keypad, press RUN SCHED.
To reset the combination code and unlock the keypad if the code is forgotten, see troubleshooting section.
3)This control can be configured for:
MS 2 – Multi-Stage System (no heat pump)
HP 1 – Heat Pump with one stage of compressor SS 1 – Single Stage System
4)GAS or Electric (ELE) fan operation. If the heating sys- tem requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat.
5)Select Cool Savings™ value – Selects the amount of adjustment for the Cool Savings™ feature in Cool mode with 1 (1°) being the least amount of adjustment and 6 (6°) being the most amount of adjustment. Default value is 0 which disables this feature. Cool Savings is an optional energy saving feature that can reduce your cooling costs. It is based on the principal that lower indoor humidity makes a slightly higher temperature feel more comfortable. Cool Savings operates during periods of high demand which normally occur on the hottest summer days when a cooling system may run for hours to reach the thermostat setting. Long cooling run times also lower the indoor humidity. Cool Savings, very slowly, adjusts the setpoint temperature to make the setpoint closer to the displayed room temperature, to a maximum of the number of degrees you select. Adjust- ing the setpoint temperature over a long cooling run time allows the system to reach your set temperature and turn off. The room temperature will actually be higher than the thermostat displays but the reduction in humidity will allow comfort at the slightly higher temperature.
To turn this feature on in the Cool mode press Cool Savings. The display will show “Save” next to the setpoint temperature. When Cool Savings is making ad- justments to the room temperature display “Save” will be flashing and the displayed room temperature may vary within the adjustment range you selected.
If “Save” is not displayed and this feature is OFF, no change will occur when the cooling system is continu- ously running during periods of high demand.
6)Energy Management Recovery: (this step is skipped if configured to be non-programmable). Energy Manage-
INSTALLER/CONFIGURATION MENU
ment Recovery (E) On enables the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify. Heat- ing 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 build- ing 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 temperature.
7, 8, 9 & 10) Cycle Rate Selection – The factory default set- ting for Heat and Cool modes, SS1 and MS2 is medium cycle (ME). For Heat Pump and HP1, the default setting is medium (ME). For Emer (Aux) the default setting is fast
cycle (FA). To change cycle rate, press the 
or 
key.
Cycle rate differentials for different settings are:
| Fast | Medium Slow |
MODE | 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) | 0.9°F | 1.2°F | 1.7°F |
Emer (HP1) | 0.6°F | - | 1.7°F |
11)Select Compressor Lockout CL OFF or ON – Select- ing CL ON will cause the thermostat to wait 5 minutes between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer com- pressors 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 oc- curs, it will flash the setpoint for up to five minutes.
12)System Mode Configuration – This thermostat is con- figured for Heat and Cool with Auto Changeover (SYS- TEM switch with Heat, Auto, Cool, Off). It can also be configured for Heat and Cool (Heat, Cool, Off), Heat only
with Fan (Heat, Off, FAN Switch) Heat only without Fan (Heat, Off) Auto only (Auto, Off) and Cool only (Cool, Off).
13)Select Backlight Display – The display backlight im- proves 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 turn 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 whether the backlight is selected ON or OFF.
14)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 cali- brated at the factory, but you have the option to change the display temperature to match your previous thermo- stat. The current or adjusted room temperature will be displayed.
15)Select F° or C° Readout – Changes the display readout to Celsius or Fahrenheit as required.
16)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 
or 
key.
17)Limited Cool Range – This feature provide 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 
or 
key.
18)Program Options: 1F85 only, configured for 5+1+1 day or 5+2 day programming or non-programming mode. The default setting is P3, indicating 5+1+1 day programming.
