Emerson 1F83-0422, Instructions Manual

5

INSTALLER/CONFIGURATION MENU 

1) 

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 selec-

tion 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 designating key-

pad 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.

2)  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

3)  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.

4) 

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.

5) 

Energy Management Recovery:

 (this step is skipped if

configured to be non-programmable). Energy Manage-

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.

6, 7 & 8) 

Cycle Rate Selection

 – The factory default setting 

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

9) 

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.

10)  

System Mode Configuration

 – This thermostat is con-

figured 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).

11)  

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.

12) 

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.

13) 

Select F° or C° Readout

 – Changes the display readout

to Celsius or Fahrenheit as required.

14) 

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.

15) 

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.

16) 

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. 

The programs per week can be changed to P2 or P0 by