Classic 80 Info
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Classic 80 Info

1F80, Classic 80 Series Thermostat

General Information

1F80-24, 1F80-41, 1F80-51, 1F80-52, 1F80-71, 1F81-51, 1F81-71, 1F82-51, 1F83-51, 1F84-51, 1F86-444, 1F87-51, 1F89-11

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This table shows the Operating Instructions number for each thermostat. Select the Operating Instructions you wish to view as a pdf document. The Operating Instructions will open in a new browser window. To return to this page, close the new browser window.

Operating Instructions

  System Program Operating 
Instructions*
1F80-24 Single Stage 24 Hr Prgm 1-Program) 37-5287
1F80-41 Single Stage 5+2 Prgm (2 Programs) 37-5604
1F80-51 Single Stage 5+2 Prgm (2 Programs) 37-5285
1F80-52 Single Stage 5+2 Prgm (2 Programs) 37-5599
1F80-71 Single Stage 5+2 Prgm (2 Programs) 37-6120
1F81-51 Multi-Stage 5+2 Prgm (2 Programs) 37-5854
1F81-71 Multi-Stage 5+2 Prgm (2 Programs) 37-5938
1F82-51 Heat Pump 5+2 Prgm (2 Programs) 37-5650
1F83-51 Multi-Stage Non-Programmable 37-5916
1F83-71 Multi-Stage Non-Programmable 37-6126
1F84-51 Heat Pump 7-Day Prgm (7 Programs) 37-5739
1F86-444 Single Stage Non-Programmable 37-5410
1F87-51 Single Stage 7-Day Prgm (7 Programs) 37-5323
1F89-11 Heat Pump Non-Programmable 37-5741

 

The following tables show the options for each thermostat and how to select the option desired.

Clock Options

  Clock Options
1F80-24 Civilian 12 or Military 24 Hour Clock, Press: Set Time & Run Prgm
1F80-41 Civilian 12 or Military 24 Hour Clock, Press:Set Time & Run Prgm
1F80-51 Civilian 12 or Military 24 Hour Clock, Press:Set Time & Run Prgm
1F80-52 Civilian 12 or Military 24 Hour Clock, Press:Set Time & Run Prgm
1F80-71 Civilian 12 Hour Clock only.
1F81-51 Civilian 12 Hour Clock only.
1F81-71 Civilian 12 Hour Clock only.
1F82-51 Civilian 12 Hour Clock only.
1F83-51 N/A, Does not display time
1F83-71 N/A, Does not display time
1F84-51 Civilian 12 Hour Clock only.
1F86-444 N/A, Does not display time
1F87-51 Set Time/Set Temp & Run Prgm
1F89-11 Civilian 12 Hour Clock only.

Reset Thermostat to Factory Settings

1F80-24 Remove Batteries for 5 minutes
1F80-41 Remove Batteries for 5 minutes
1F80-51 Remove Batteries for 5 minutes
1F80-52 Remove Batteries for 5 minutes
1F80-71 Remove Cover and Press Reset Button
1F81-51 Remove Cover and Press Reset Button
1F81-71 Remove Cover and Press Reset Button
1F82-51 Remove Cover and Press Reset Button
1F83-51 Remove Cover and Press Reset Button
1F83-71 Remove Cover and Press Reset Button
1F84-51 Remove Cover and Press Reset Button
1F86-444 Remove Batteries for 5 minutes
1F87-51 Remove Batteries for 5 minutes
1F89-11 Remove Cover and Press Reset Button

Change Display from Fahrenheit to Celcius

1F80-24 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F80-41 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F80-51 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F80-52 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F80-71 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F81-51 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F81-71 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F82-51 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F83-51 30 Seconds after power up press Temp Up & Temp Down at the same time, display will change to C°. To return to F°, repeat.
1F83-71 Press Temp Down and System at the same time and hold until it reads in C°. To return to F°, repeat.
1F84-51 Press Set Time & Hold Temp at the same time, display will change to C°. To return to F°, repeat.
1F86-444 30 Seconds after power up press Temp Up & Temp Down at the same time, display will change to C°. To return to F°, repeat.
1F87-51 Press Set Time/Set Temp & Hold Temp/ Adv Day at the same time, display will change to C°. To return to F°, repeat.
1F89-11 Press Temp Up & Temp Down arrow keys at the same time, display will change to C°. To return to F°, repeat.

Adjust the Temperature Display

1F80 -24 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F80-41 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F80-51 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F80-52 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F80-71 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F81-51 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F81-71 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F82-51 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F83-51 Within 30 seconds of applying power, Press  Temp Up & Temp Down  then use Temp Up or Temp Down  to adjust. Automatically returns to program
1F83-71 Press Temp Down and System at the same time and hold until the room temperature display appears. Adjust higher or lower by pressing the Temp Up or Temp Down  button. To return to the normal display press System.
1F84-51 View Prgm & Hold  Temp, Use Temp Up or Temp Down Arrow Key to adjust temp. Press Run Prgm
1F86-444 Within 30 seconds of applying power, Press  Temp Up & Temp Down then use Temp Up or Temp Down  to adjust. Automatically returns to program
1F87-51 View Prgm & Hold Temp/Adv Day, then use Temp Up or  Temp Down to adjust temp.  Press Run Prgm
1F89-11 1). Move System Switch to OFF. 2). Hold Temp Down Arrow and move System Switch  to Heat or Cool. Release Temp Down Arrow  when temp display remains constant.3) Use Temp Up or Temp Down to adjust temp. Thermostat automatically resumes program within 2 minutes. 

Adjust the Cycle Time (Anticipation)

1F80-24 Set Time & View Prgm at the same time. Select A or H. Automatically returns to program
1F80-41 Set Time & View Prgm at the same time. Select A or H. Automatically returns to program
1F80-51 Set Time & View Prgm at the same time. Select A or H. Automatically returns to program
1F80-52 Set Time & View Prgm at the same time. Select A or H. Automatically returns to program
1F80-71 Cut Jumper W-905 on he back of the thermostat for longer cycles.
1F81-51 Cut Jumper W-901 on he back of the thermostat for longer cycles.
1F81-71 Cut Jumper W-905 on he back of the thermostat for longer cycles.
1F82-51  For Fast (F) or Slow (S) Heat Pump Anticipation. Adjustment. Press Set Time & View Prgm at the same time. Select F or S. Press Run Prgm
1F83-51 Cut Jumper W-901 on the back of the thermostat for longer cycles.
1F83-71 Cut Jumper W-905 on the back of the thermostat for longer cycles.
1F84-51 For Fast (F) or Slow (S) Heat Pump Anticipation. Adjustment. Press Set Time & View Prgm at the same time. Select F or S. Press Run Prgm
1F86-444 N/A Forced Air Systems only
1F87-51 Set Time/Set Temp & View Prgm at the same time. Select A or H. Automatically returns to program
1F89-11 For Fast (F) or Slow (S) Heat Pump Anticipation. Adj. 1). Move System Switch to OFF. 2). While holding the Temp Up key, slide System Switch to Heat. 3). Select F or S. 4). Unit automatically returns to a normal display.

On Single-www.models, heating can be set to A or H. Cooling is not adjustable. On Multi-www.or Heat Pump models, heating can be set to F or S.

The chart below shows how this adjustment range affects thermostat performance.

 

HEATING

COOLING

Anticipation Reference Number

Run Time in minutes

Differential Temp ºF

Run Time in minutes

Differential Temp ºF

A

6 - 10

0.8

10 - 16

1.2

H

18 - 25

2.2

 

 

F

6 - 10

0.8

10 – 16

1.2

S

12 - 15

1.4

 

 

† These numbers are approximate and represent operation with a typical system. Actual temperature differentials and run times will vary based on your building and equipment, as well as outdoor temperature conditions.

Set EMR

 

EMR (Energy Management Recovery)

1F80-24 No
1F80-41 No
1F80-51 No
1F80-52 No
1F80-71 Clip W-903 on back of thermostat to disable EMR
1F81-51 Clip W-903 on back of thermostat to disable EMR
1F81-71 Clip W-903 on back of thermostat to disable EMR
1F82-51 Clip W-903 on back of thermostat to disable EMR
1F83-51 N/A
1F83-71 N/A
1F84-51 Clip W-903 on back of thermostat to disable EMR
1F86-444 N/A
1F87-51 No
1F89-11 No