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PART NO.

 37-7569

1504

1F83H-21NP 

(Non-Programmable)

Installation and Operating Instructions

80

 Series Heat Pump Thermostat

Battery Powered or Hardwired with Common

emersonthermostats.com
white-rodgers.com

Thermostat Applications 

Maximum 

Stages 

Heat /Cool 

Single Stage Compressor, Heat Pump 

Systems (air source or geothermal) – 

1

 Stage Aux/Emergency Heat

2/1

Thermostat Installation 

2-4

Wiring 

2

Installer Menu

3-4

Using the Thermostat

5-6

Thermostat  Overview 

5

User Menu

6

Troubleshooting 

7-8

Homeowner Help Line

8

INDEX

MERCURY NOTICE:

  

This product does not contain 

mercury. However, this product may replace a product 

that contains mercury. Mercury and products containing 

mercury must not be discarded in household trash. 

Refer to www.thermostat-recycle.org for information 

on disposing of products containing mercury.

 

Electrical Rating:

Battery Power ..................................... 

20

 to 

30

 VAC, NEC Class II, 

50/60

 Hz

Input-Hardwire .................................... 

20

 to 

30

 VAC, NEC Class II, 

50

/

60 

Hz

Terminal Load .......................................... 

1.5

 A per terminal, 

2.5

A maximum all terminals combined 

Setpoint Range ........................................ 

45° 

to 

99°

 F (

7° 

to 

37° C)

Rated Differentials (@ 

6

°F/ Hr):                       Fast 

Med 

Slow

Heat Pump (Heat)................................ 

0.9°F 1.2°F 1.7°F

Heat Pump (Cool) ................................ 

0

.

9°F 1.2°F 1.7°F

Auxiliary Heat ...................................... 

0

.

5°F  0.75°F 1.9°F

Operating Ambient .................................. 

32°F to +105°F (0° to +41°C) 

Display Temperature Range ....................... 32°F to +99°F (0 to 37°C)

Operating Humidity ................................. 

90

% non-condensing maximum 

Shipping Temperature Range ................... 

-20

°F to + 

150

°F

 (-29° to +65°C)

Thermostat Dimensions ........................... 

3-3/4” H x 6” W x 1-1/8” D

SPECIFICATIONS 

Optional Accessory: Wall Cover-up Plate 

F61-2663, 6 3/4” W x 4 1/2” H

 

2

Terminal Designations

Terminal Function

R

Power (

24

V) 

O/B

Changeover Terminal-Energized in Cool (O) or Heat (B) 

for Heat Pump or Damper Systems

Y

Heat and Cool Mode 

1

st Stage Compressor

G

Fan Relay 

E*

Auxiliary only Heat Mode (Emergency Heat)

C

Common wire for 

24V

 (optional with batteries)

L

Heat Pump malfunction / Diagnostic terminal 

(input signal requires common)

W

2

*

Heat Mode – 

2

nd stage

*Cut W

2

/E jumper when separate heat sources are used for W

2

 and E.

IMPORTANT: For Dual Fuel Heat Pump applications, be sure to turn on the Duel Fuel Logic option 
(found in the Installer’s Menu)

WIRING 

Refer to equipment manufacturer’s instructions for specific system wiring information. After 

wiring, see INSTALLER MENU for proper thermostat configuration. Wiring table shown are 

for typical systems and describe the thermostat terminal functions. 

THERMOSTAT INSTALLATION

Precautions

•  Do not exceed the specification ratings.

•  All wiring must conform to local and national electrical codes and ordinances.

•  This control is a precision instrument, and should be handled carefully. Rough handing or 

distorting components could cause the control to malfunction. 

WARNING

!

Do not use on circuits exceeding specified voltage. 

Higher voltage will damage control and could 

cause shock or fire hazard. 

Do not short out terminals on gas valve or primary 

control to test. Short or incorrect wiring will burn 

out thermostat and could cause personal injury 

and/or property damage. 

CAUTION

!

To prevent electrical shock and/or equipment

      damage, disconnect electrical power to system  

at main fuse or circuit breaker box until 

installation is complete. 

Leveling Thermostat
Leveling is for appearance only and 
will not affect thermostat operation.

Summary of Contents for 1F83H-21NP

Page 1: ...H 2 Terminal Designations Terminal Function R Power 24V O B ChangeoverTerminal Energized in Cool O or Heat B for Heat Pump or Damper Systems Y Heat and Cool Mode 1st Stage Compressor G Fan Relay E Auxiliary only Heat Mode Emergency Heat C Common wire for 24V optional with batteries L Heat Pump malfunction Diagnostic terminal input signal requires common W2 Heat Mode 2nd stage CutW2 E jumper when s...

Page 2: ... operational for 6 hours and the system has not been operational for at least 5 minutes TEST EQUIPMENT Turn on power to the system Fan Operation If your system does not have a G terminal connection skip to Heating System 1 Move fan switch to On position The blower should begin to operate 2 Move fan switch to Auto position The blower should stop immediately Heating System 1 Move System Switch to He...

Page 3: ...ERMOSTAT Whenever Replace appears in the display new premium brand AA alkaline batteries should be installed If the house will be unoccupied for an extended period and either or Replace is displayed install new batteries before leaving 6 USER MENU To customize thermostat settings press the Menu button from the home screen Use Next to advance through menu items Press or to change the setting User s...

Page 4: ... contact your HVAC service person Thermostat Display Thermometer Disagree Thermostat display requires adjustment Display can be adjusted 5 See User Menu item 04 Troubleshooting continued on next page TROUBLESHOOTING Resetting theThermostat orThermostat Settings If the thermostat has good batteries but has a blank display or does not respond to key presses the thermostat should be reset by removing...

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