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PART NO.

 37-7555B-EN

1535

1F85U-22PR 

(Programmable)

Installation and Operating Instructions

80

 Series

TM

 Universal Thermostat

Battery Powered or Hardwired with Common

white-rodgers.com
emersonclimate.com

Thermostat Applications 

Maximum 

Stages 

Heat/ Cool 

Conventional Gas, Oil, Electric 

(mV and 

24

V), Heat only, Cool only or 

Heat/Cool Systems

2/2

Heat Pump (Air Source or Geothermal) 

with Aux. Heat

2/1

Thermostat Installation 

2-4

Wiring 

2

Installer Menu

3-4

Test Equipment

4

Using the Thermostat

5-7

Thermostat  Overview 

5

User Menu

6

Thermostat Operation 

6

Thermostat Schedule

7

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 ..................................... 

mV

 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 (Conventional Gas / Oil / Elect) ..... 

0.5°F  0.75°F 1.9°F

Cool (Central Air) ................................. 

0

.

9°F 1.2°F 1.7°F

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

0

.

9°F 1.2°F 1.7°F

Heat Pump Aux. .................................. 

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

Terminal Designations

Terminal Function

RC

Power (

24

V) - Cooling 

RH

Power (

24

V) - Heating 

O/B

6 (not shown) - 

3

 wire zone valve

Reversing Valve or output for

 3

 wire zone valves

Configurable as “O” or “B” Reversing Valve or 3 wire 

zone heat (power close)

Y

1

st Stage Compressor (conventional or heat pump)

G

Fan Relay 

W/E

1st 

Stage Heat (conventional);

 

1st

 Stage Auxiliary Heat (heat pump)

Can operate as Emergency Heat only 

(See Installer Menu 

#15)

C

Common wire for 

24V

 (optional with batteries)

L

Heat Pump Malfunction / Diagnostic terminal 

(input signal requires common)

Y2

2

nd Stage compressor (conventional only)

W

2

2

nd Stage Heat (Conventional)

Can operate as 

1

st Stage Auxiliary Heat 

(See Installer Menu #

15

)

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. Wiring will change when dedicated emergency heat is on 

(See Installer Menu #

15).

 

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 handling 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.

CAUTION

!

To prevent compressor and/or property damage, if the outdoor temperature is below 

50°

F, 

DO NOT operate the cooling system. 

Do not allow the compressor to run unless the compressor oil heaters have been operational 

for 

hours and the system has not been operational for at least 

5

 minutes. 

2

Содержание 1F85U-22PR

Страница 1: ...alves Configurable as O or B ReversingValve or 3 wire zone heat power close Y 1st Stage Compressor conventional or heat pump G Fan Relay W E 1st Stage Heat conventional 1st Stage Auxiliary Heat heat pump Can operate as Emergency Heat only See Installer Menu 15 C Common wire for 24V optional with batteries L Heat Pump Malfunction Diagnostic terminal input signal requires common Y2 2nd Stage compres...

Страница 2: ... system has a standing pilot be sure to light it 2 Press to adjust thermostat setting to 1 above room temperature The heating system should begin to operate and the thermostat will indicate Heat On 3 For heat pump with auxiliary Press to adjust thermostat setting to 3 above room temperature The auxiliary heat should begin to operate and the thermostat will indicate Heat On Aux 4 Press to adjust th...

Страница 3: ...utton and release Description Default Setting flashing icons Settings Press or 01 ScheduleType set as either 7 Day 5 1 1 Day or Non Programmable 5 7 7 Day 5 5 1 1 Day 0 Non Programmable 02 Defines periods per day 4 2 leave return 4 wake leave return sleep 03 Early Start starts heating or cooling early so your programmed temperature is reached by the programmed time OFF On start early OFF start at ...

Страница 4: ...or does not respond to key presses the thermostat should be reset by removing the batteries for 2 minutes This reset will not change the menu settings or program If the condition persists after reinstalling the batteries replace the thermostat To conveniently reset only the schedule and user settings back to factory defaults press Menu and Backlight buttons at the same time and hold until the disp...

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