White Rodgers 1F83 0422 Thermostat Thermostat User Manual

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Blue Universal Thermostat with

Automatic Heat/Cool Changeover Option

Single Stage, Multi-Stage or Heat Pump

Installation and Operating Instructions for Models:

Save these instructions for future use!

Model

Programming Choices

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS

CAREFULLY BEFORE INSTALLING OR OPERATING

THIS CONTROL COULD CAUSE PERSONAL INJURY

AND/OR PROPERTY DAMAGE.

5+1+1 Day 5+2 Day Non-Programmable

Non-Programmable

1F85-0422

1F83-0422

APPLICATIONS

THERMOSTAT APPLICATION GUIDE

1F83-0422 Thermostat

Description

Heat Pump (No Aux. or Emergency Heat)

Heat Pump (with Aux. or Emergency Heat)

Systems with up to 2 Stages Heat, 2 Stages Cool

Heat Only Systems (with optional fan switch)

Millivolt Heat Only Systems – Floor or Wall Furnaces

Cool Only Systems

Yes

Gas or Oil Heat

Electric Furnace

Hydronic (Hot Water) Zone Heat – 2 Wires

Hydronic (Hot Water) Zone Heat – 3 Wires

SPECIFICATIONS

Electrical Rating:

Battery Power.................................................... mV to 30 VAC, NEC Class II, 50/60 Hz or DC

Input-Hardwire................................................... 20 to 30 VAC

Terminal Load........................................................... 1.5 A per terminal, 2.5A maximum all terminals combined

Setpoint Range......................................................... 45° to 90°F (7° to 32°C)

Rated Differentials:

Fast

Med.

0.6 °F

1.2 °F

–

Slow

Heat (SS1, MS2) ............................................... 0.4 °F

Cool (SS1, MS2)................................................ 0.9 °F

Heat Pump (HP1, HP2) ..................................... 0.9 °F

Emer (HP1, HP2)............................................... 0.6 °F

1.7 °F

Operating Ambient.................................................... 32° to +105°F (0° to +41°C)

Operating Humidity................................................... 90% non-condensing max.

Shipping Temperature Range ................................... -40° to +150°F (-40° to +65°C)

Dimensions Thermostat............................................ 3-7/8”H x 5-1/8”W x 1-1/4”D

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this

product may replace a product that contains mercury.

CAUTION

To prevent electrical shock and/or equipment damage,

disconnect electric power to system at main fuse or

circuit breaker box until installation is complete.

Mercury and products containing mercury must not be

discarded in household trash. Do not touch any spilled

mercury. Wearing non-absorbent gloves, clean up any

spilled mercury and place in a sealed container. For prop-

er disposal of a product containing mercury or a sealed

container of spilled mercury, place it in a suitable shipping

container. Refer to www.thermostat-recycle.org for loca-

tion to send product containing mercury.

Index

Page

Installation

Wiring Connections

Thermostat Quick Reference

Installer Conﬁguration Menu

Operating Your Thermostat

Programming

Troubleshooting

PART NO. 37-7240B

Replaces 37-7240A

www.white-rodgers.com

www.emersonclimate.com

13116

INSTALLATION

Figure 1 – Battery door shown open

WARNING

Thermostat installation and all components of the

control system shall conform to Class II circuits per

the NEC code.

“AA” Alkaline Batteries

Remove Old Thermostat

A standard heat/cool thermostat consists of three basic parts:

1) The cover, which may be either a snap-on or hinge type.

2) The base, which is removed by loosening all captive

screws.

3) The switching subbase, which is removed by unscrewing

the mounting screws that hold it on the wall or adapter

plate. Before removing wires from old thermostat,

label each wire with the terminal designation from

which it was attached. Disconnect the wires from the

old thermostat one at a time. Do not let wires fall back

into the wall.

Thermostat can be powered by system AC power or Battery.

is displayed, the thermostat is battery powered. If

is not displayed, thermostat is system powered with optional

battery back-up. When battery power remaining is approxi-

mately half, the

will be displayed. When “Change

”

is displayed, install fresh “AA” alkaline batteries immediately.

For best results, replace all batteries with new premium brand

alkaline batteries such as Duracell^®or Energizer^®. We recom-

mend replacing batteries every 2 years. If the home is going

to be unoccupied for an extended period (over 3 months) and

is displayed, the batteries should be replaced before

leaving. When less than two months of battery life remain, the

setpoint temperature will offset by 10 degrees (10 degrees

cooler in Heat mode / 10 degrees warmer in Cool mode). If

offset occurs, the normal setpoint can be manually reset with

Installing New Thermostat

1) Pull the thermostat body off the thermostat base. Forcing

or prying on the thermostat will cause damage to the unit.

2) Place base over hole in wall and mark mounting hole

locations on wall using base as a template.

. Another offset will occur within two days if batter-

3) Move base out of the way. Drill mounting holes. If you

are using existing mounting holes and the holes drilled

are too large and do not allow you to tighten base snugly,

use plastic screw anchors to secure the base.

ies are not replaced.

Figure 2 – Thermostat base and rear view of thermostat

4) Fasten base snugly to wall using mounting holes shown

in Figure 2 and two mounting screws. Leveling is for

appearance only and will not affect thermostat operation.

5) Connect wires to terminal block on base.

6) Push excess wire into wall and plug hole with a ﬁre re-

sistant material (such as ﬁberglass insulation) to prevent

drafts from affecting thermostat operation.

Mounting

Hole

Mounting

Hole

Place Level

across

Mounting Tabs

across

Mounting Tabs

(for appearance only)

7) Carefully line the thermostat up with the base and snap

into place.

(for appearance only)

Batteries

2 “AA” alkaline batteries are included with the thermostat.

To install the batteries, pull the battery door as shown by the

arrow and lift open. Using the polarity indicated inside the bat-

tery door, insert the batteries. To close the battery door, swing

the door down while pulling in the direction of arrow. Once

fully down, snap the door back into position. To replace the

batteries, set system to OFF.

WIRING CONNECTIONS

Refer to equipment manufacturers’ instructions for speciﬁc Refer to 37-6895 for 1F83-0422/1F85-0422 wiring diagram

system wiring information. After wiring, see CONFIGURATION speciﬁcations.

section for proper thermostat conﬁguration.

TERMINAL DESIGNATION DESCRIPTIONS

Terminal

Designation

Description

Designation Description

L...............Heat pump malfunction indicator for systems

with malfunction connection

W/E............Heat Relay/Emergency Heat Relay (Stage 1)

W2.............2nd Stage Heat (HP 1)

O..............Changeover valve for heat pump energized

constantly in cooling

G..............Fan Relay

RH.............Power for Heating

B ..............Changeover valve for heat pump energized

constantly in heating

Y ..............Compressor Relay

RC.............Power for Cooling

C ..............Common wire from secondary side of cooling system

transformer or heat only system transformer

6...............3 Wire Zone Valve – Energized when no call for Heat

Y2 .............2nd Stage Compressor

THERMOSTAT QUICK REFERENCE

Home Screen Description

Figure 3 – Home Screen Display

Setting

Room

Time of day (1F85 only)

Temperature

Set

Displays the power level of

the 2 “AA” batteries:

indicates good power level

indicates batteries at about

half power. “Change

” indicates

batteries are low and should be

replaced with 2 new premium brand

“AA” Alkaline batteries.

(See page 2 for more details)

SYSTEM

Heat

FAN

Auto

System

Indicator

Fan

Indicator

Figure 4 – Programming & Conﬁguration Items

Mo Tu We Th Fr Sa Su

P Date

Temp Hold

Set

Save

Month Call For Service

Year

Change

Filter

System On

Heat Pump

SYSTEM

Heat Emer Auto

Cool Oꢀ Time

Hold

Auto Sched

Cool Savings

FAN

On Auto

Run Sched

Run

Schedule

Displays “Save” when Cool Savings^TMis working.

Programming and Conﬁguration Items

“System On” indicates when heating or cooling stage

is energized, “+2” ﬂashing indicates when a second

stage is energized.

Displays “Heat Pump” when system is conﬁgured

as Heat Pump thermostat.

Displays “Hold” in programmable mode when not in

“Hold” mode. Displays Light Bulb in non-programmable

mode.

The word HOLD is displayed when the thermostat is in

the HOLD mode. Temp HOLD is displayed when

the thermostat is in a Temporary HOLD mode.

Initially displays “Auto Sched”. If Auto Schedule had

been used or disabled, then it displays “Cool Savings”

when in the Cool Mode if Cool Savings has been ena-

bled in the menu.

Displays Change Filter when the system has run for

the programmed ﬁlter time period as a reminder to

change or clean your ﬁlter.

Displays “Set” for setpoint when in Run Program mode.

“Call For Service” indicates a fault in the heating/

cooling system, it does not indicate a fault in the

thermostat.

Displays System Mode (Heat, Emer, Auto, Cool, Off)

or Time in menu mode.

Alternates Time of Day and “LOC” when keypad lockout

Displays Fan Mode (On, Auto) or “Run Sched” in

is enabled.

Menu mode.

In Conﬁguration Menu, shows screen number. If blank,

thermostat is earlier model and requires instruction sheet

Displays “Run Schedule”, “Schedule”, or “Menu”.

37-7136A.

INSTALLER/CONFIGURATION MENU

To enter the Conﬁguration Menu, SYSTEM must be set to HEAT, COOL, EMER or AUTO. With thermostat in Heat, Cool or

Auto, in normal operation, press the Menu button for at least 5 seconds. The display will show item #1 in the table below. Press

Menu to advance to the next menu, Press

to change an item option. Shaded items are not available to 1F83.

INSTALLER/CONFIGURATION MENU

SCREEN #

MS/

DISPLAYED

Press

SS (FACTORY DEFAULT)

COMMENTS

select from listed options

1F85 1F83 HP

01 01

(OFF) Lk

Selects Keypad Lockout.



(Not available on earlier models, see 37-6894D)

Selects Keypad lockout combination number

02 02

03 03

(000) Lk

(MS 2)

001 to 999

HP 1, SS 1



Selects Multi-Stage (MS 2 No Heat Pump),

Heat Pump 1 (HP 1, 1 compressor),

or Single Stage (SS 1)

04 04

05 05

(GAS)

(ELE)

(0)

(On)

(ME)

CR Heat

(ME)

CR Cool

(ME)

ELE

GAS

1, 2, 4, 5, 6

Select Gas or Electric heat



Selects Cool Savings

Value 1 (low) to 6 (high), Value 0 Disables Feature

Selects Energy Management Recovery (EMR)

On or OFF. 1F85 only

—

OFF



07 06

08 07

09 08

10 09

SL, FA

Adjustable Anticipation:

Selects heating cycle rate for MS or SS

Adjustable Anticipation: Selects the cycle rate for

cooling (only when MS2 or SS1 is selected in item 1)

Adjustable Anticipation (Heat Pump)

(only when heat pump is selected in #1)

Selects the cycle rate for Emergency mode and

Auxiliary stage if Heat Pump is selected in item 1)

Compressor Lockout Time



CR Heat Pump

(FA)

CR Emer

(OFF) CL

11 10

12 11

CL On



Heat-Auto-Cool-Off

Auto-Off, Cool-Off,

Heat-Off without Fan,

Heat-Off Heat-Cool-Off

dL OFF

Selects System Mode Conﬁguration

13 12

14 13

(On) dL

Selects Display Light On or OFF

Adjustable Ambient Temperature Display



1 HI, 2 HI, 3 HI, 4 HI,

(current temperature) 1 LO, 2 LO, 3 LO, 4 LO

15 14

Selects Fahrenheit/Celsius Temperature Display



°F

°C

—

L (90) Heat

L (45) Cool

L 62 to L 89

L 46 to L 82

P0, P2

Selects Limited HEAT Range

Selects Limited COOL Range



Defaults for 5+1+1 programming (P3) but non-

programmable (PO) or 5+2 programming (P2)

is available on most models. 1F85 only

Automatic Schedule for heat mode. 1F85 only.

NA to Cool only system.

—

(On) AS Heat

(On) AS Cool

(On) FA Heat

(On) FA Cool

OFF



Automatic Schedule for cool mode. 1F85 only.

NA to Heat only system.

21 17

22 18

Fast Heat option may be disabled by selecting OFF.

NA to SS conﬁg. NA to Cool only system.

Fast Cool option may be disabled by

selecting OFF. NA to SS conﬁg.

NA to Heat only system.

23 19

(OFF) CA

(On) dS

Selects active Comfort Alert On or OFF.

Require CA II Module. (Not available on earlier models)

Selects Automatic daylight Savings Time option

On or OFF. 1F85 only



—

OFF

25 20

26 21

(OFF) Change Filter

(200 h) Change Filter

25-1975 h

Selects Filter Change-out Indicator On or OFF.



Change Filter time in 25 hour increments. This

menu only appears if On is selected in above.

Selects operation of the reversing valve terminal

(O/B) output as an O or B terminal.

27 22

(o) On Cool

(b) On Heat



INSTALLER/CONFIGURATION MENU

1 & 2)Keypad Lockout – This menu selection will display

“Lk” and “OFF” (default, keypad not locked out). The

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.

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.

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

key.

While the keypad is locked out, a press of MENU will en-

ter the conﬁguration menu. The ﬁrst menu item displayed

Cycle rate differentials for different settings are:

is the combination code “0”. The

keys are

Fast

Medium Slow

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.

MODE

Heat (SS1, MS2)

Cool (SS1, MS2)

Heat Pump (HP1)

Emer (HP1)

0.4°F

0.9°F

0.6°F

1.2°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

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.

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.

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.

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

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

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.

6) Energy Management Recovery: (this step is skipped if

conﬁgured to be non-programmable). Energy Manage-

INSTALLER/CONFIGURATION MENU

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

in Troubleshooting section.) If a Comfort Alert module is

not connected, or to disable active protection, turn this

feature OFF. If a Comfort Alert module is connected and

this feature is turned OFF, the thermostat will still receive

and ﬂash the fault codes from the Comfort Alert module,

but the active protection will not be enabled to protect the

compressor.

pressing the

keys. A selection of 0 Days for

non-programmable will eliminate the need for EMR, and

that step in the menu will be skipped.

19 & 20) Select Automatic Schedule – 1F85 only, with just

one touch of the Auto Schedule key this feature allows

you to program a desired comfort temperature into all the

24) Select Daylight Saving Time Calculation – 1F85 only,

this feature will allow the thermostat to calculate the DST

automatically and apply it to the Real Time Clock display.

program periods along with a 6° set back for night peri-

ods of both Heat and Cool programs. Factory default is

“On” for both. When Heat AS On and Cool AS On are

activated while in Heat or Cool mode, select desired

setpoint temperature and press Auto Schedule. This

value will be copied into all the morning, day and evening

program periods. The night program periods will have a

6°F set back.

Default On. Use

feature OFF.

touch keys to select the

25 & 26) Select Filter Replacement Reminder and Set

Run Time – Select the “Change Filter” reminder On

or OFF. If selected On, press MENU to select the time

period from 25 to 1975 hours in 25 hours increments.

In a typical system, 200 hours (default) of run time is

approximately 30 days. After the selected time of blower

operation, the thermostat will display “Change Filter”

as a reminder to change or clean your air ﬁlter. When

“Change Filter” is displayed, press MENU or RUN

SCHED button to clear the display and restart the time to

the next ﬁlter change.

21 & 22) Select Fast Second Stage ON or OFF – Heat

pump or Multi-stage only, in the run mode, with the fast

Heat feature enabled (FA Heat On), if the Heat setpoint

temperature is manually raised by 3°F (2°C) or more

above the actual temperature using

the second

stage will energize immediately. With FA OFF, second

stage will not energize until the setpoint temperature is

1°F or more above actual temperature for more than ten

minutes. The Fast Cool feature (FA Cool) provides the

same controls when the setpoint temperature is lowered.

27) Select Reversing Valve Output – The O/B option is

factory set at “O” position. This will accommodate the

majority of heat pump applications, which require the

23) Comfort Alert with Active Protection – Turn this

feature ON to enable active protection. This allows the

thermostat to identify fault codes sent by the Comfort

Alert module when compressor damage is possible and

react to those codes by turning the compressor off. Fault

codes from the Comfort Alert module will ﬂash on the

thermostat. (Refer to Comfort Alert Yellow Alert Codes

changeover relay to be energized in COOL. If the

thermostat you are replacing or the heat pump being

installed with this thermostat requires a “B” terminal, to

energize the changeover relay in HEAT, the O/B option

should be set at “B” position.

OPERATINGYOUR THERMOSTAT

IMPORTANT!

Choose the Fan Setting (Auto or On)

Set the FAN Switch to Auto or On.

Fan Auto is the most commonly selected setting and runs the

fan only when the heating or cooling system is on.

Fan On runs the fan continuously for increased air circulation

or to allow additional air cleaning.

Manual Operation for Non-Programmable

Mode

Press the SYSTEM button to select Heat or Cool and use

the

buttons to adjust the temperature to your

desired setting. After selecting your desired settings you can

also press the SYSTEM button to select AUTO to allow the

thermostat to automatically change between Heat and Cool.

Choose the System Setting

(Heat, Off, Cool, Auto, Emer)

Press the SYSTEM button to select:

Manual Operation (Bypassing the Program)

Programmable Thermostats

Press

and then the HOLD button and adjust the

Heat: Thermostat controls only the heating system.

Off: Heating and Cooling systems are off.

temperature wherever you like. This will override the program.

The HOLD feature bypasses the program and allows you

to adjust the temperature manually, as needed. Whatever

temperature you set in HOLD will be maintained 24 hours

a day, until you manually change the temperature or press

RUN SCHED to cancel HOLD and resume the programmed

schedule.

Cool: Thermostat controls only the cooling system.

Auto: Auto Changeover is used in areas where both heating

and cooling may be required on the same day. AUTO allows

the thermostat to automatically select heating or cooling

depending on the indoor temperature and the selected heat

and cool temperatures. When using AUTO, be sure to set the

Cooling temperatures more than 1° Fahrenheit higher than

the heating temperature.

Program Override (Temporary Override)

Press

buttons to adjust the temperature. This

Emer: (Heat Pump models) Thermostat controls only backup

heating system.

will override the temperature setting for four hours. To cancel

the temporary setting at any time and return to the program,

press Run Sched. If the SYSTEM button is pressed to select

AUTO the thermostat will change to Heat or Cool, whichever

ran last. If it switches to heat but you want cool, or it changes

to cool but you want heat, press both

and

buttons

simultaneously to change to the other mode.

OPERATINGYOUR THERMOSTAT

IMPORTANT!

delay second stage for a longer time if you manually raise

the temperature or if the room temperature quickly changes.

Once the second stage comes on, it will come on sooner the

next time there is a difference between the setpoint and the

room temperature. The net effect of the staging program is

that when the ﬁrst stage is capable of making temperature

the second stage will delay longer. When the thermostat

calculates that ﬁrst stage cannot make temperature in a

reasonable time, the second stage will come on sooner. This

built in function automatically optimizes the use of additional

stages of heat or cool.

Second Stage Time Delay

Your thermostat is designed to determine the optimum time

to activate the second stage. Simply raising the temperature

in heating or lowering it in cooling will not always force the

thermostat to bring the second stage on quickly. There is a

time delay from 0-30 minutes depending on the performance

of the ﬁrst stage of the system.

EXAMPLE: For the last 2 hours the thermostat is set on 70°

and the room temperature is 70° with the equipment using

only the ﬁrst stage of heat. Since the equipment is keeping

the temperature within 1° of setpoint, the thermostat will

PROGRAMMING (For Programmable Model Only)

4) Press

key to change the temperature to your

Set Current Time and Date

selected temperature for the 1st heating period.

5) Press TIME button, time will ﬂash.

6) Press

1st period.

7) The time will change in 15 minute increments.

8) After you have set the time and the temperature for

the period to begin, press SCHEDULE to advance to the

next program period.

9) Repeat steps 2 through 8 until all of the program times

and temperatures are set for all program periods on that

day.

1) Press MENU and then TIME button once. The display

will show the hour only.

key to adjust the start time for the

2) Press and hold either the

key until you reach

the correct hour and AM/PM designation (AM begins at

midnight, PM begins at noon).

3) Press TIME once again. The display window will show

the minutes only.

4) Press and hold either the

the correct minutes.

5) Additional presses of TIME will advance the display to

show the year, month and date of month. Press the

key until you reach

10) Press SCHEDULE to the next day and repeat steps 2

through 9.

key to change the display to the correct setting

for each.

11) When programming is complete and all of the times and

temperatures match your desired heating schedule, press

RUN SCHEDULE. The thermostat will now run your

program.

6) Press RUN SCHED to exit the TIME mode.

Enter the Heating Program

1) Press SYSTEM button to select “Heat” in the system

switch area indicating the active mode being pro-

grammed.

2) Press the MENU button and then press SCHEDULE.

3) The top of the display will show the day(s) being pro-

grammed. The time and temperature (ﬂashing) are also

displayed. “1” will also be displayed to indicate the period.

Enter the Cooling Program

1) Press SYSTEM button to select “Cool” in the system

switch area indicating the active mode being pro-

grammed.

2) Follow Enter Heating Program instructions for entering

cooling times and temperatures.

Energy Saving Factory Pre-Program

The 1F85-0422 thermostats are programmed with the energy

saving settings shown in the table below for all days of the

week. If this program suits your needs, simply set the thermo-

stat clock and press the RUN SCHED button.

The table below shows the factory set heating and cooling

schedule for all days of the week.

Wake Up

(Period 1)

Leave For Work Return Home

(Period 2) (Period 3)

Go To Bed

(Period 4)

Heating

Program

6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F

6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F

Cooling

Program

PROGRAMMING

PlanningYour Program – Important

The Heating and Cooling Program schedules below allow you

to pencil in your own program times and temperatures.

The 1F85-0422 comes conﬁgured for 5+1+1 day program-

ming and can also be conﬁgured for 5+2 day programming

(see conﬁguration section).

If you are re-programming a 5+1+1 ﬁll in all lines with the

times and temperatures you want.

Keep the following guidelines in mind when planning your

program.

• In Heating, lower temperatures will save energy.

• In Cooling, higher temperatures will save energy.

• If you plan on using Auto Changeover, do not program

the heating higher than the cooling.

Factory settings are listed on Monday through Friday, Satur-

day and Sunday. If you are re-programming a 5+2 day sched-

ule, pencil in your own times and temperatures directly below

the factory times and temperatures.

Worksheet for Re-Programming 5+2 Day and 5+1+1 Day Program

Heating

Program

Wake Up

(Period 1)

Leave For Work Return Home

(Period 2) (Period 3)

Go To Bed

(Period 4)

6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F

Mon-Fri

Sat-Sun

or Sat

Sun

5+1+1 only

Cooling

Program

Wake Up

(Period 1)

Leave For Work Return Home

(Period 2) (Period 3)

Go To Bed

(Period 4)

6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F

Mon-Fri

Sat-Sun

or Sat

Sun

5+1+1 only

TROUBLESHOOTING

Comfort Alert Codes

Comfort AlertYellow Alert Codes

The Comfort Alert diagnostics product monitors the air

conditioning outdoor systems with single phase Copeland

Scroll compressors. Abnormal system and electrical

conditions are indicated by ﬂashing ALERT codes on the

yellow LED on the Comfort Alert module. The ﬂash codes are

transmitted to the thermostat by the Comfort Alert Thermostat

interface module. The Comfort Alert compatible thermostat

displays “Call For Service” that ﬂashes at the same rate as

the yellow LED on the Comfort Alert module.

1 Flash

Long run time

System pressure trip

Short cycling

2 Flashs

3 Flashs

4 Flashs

5 Flashs

6 Flashs

7 Flashs

8 Flashs

9 Flashs

Locked rotor

Open circuit

Open start circuit

Open run circuit

Welded Contactor

Low voltage

TROUBLESHOOTING

Reset Operation

function correctly contact your heating/cooling service person

or place of purchase.

Note: Be sure to review the installer conﬁguration menu

settings.

Note: When thermostat is reset, installer conﬁguration menu

settings and programming will reset to factory settings.

If a voltage spike or static discharge blanks out the display

or causes erratic thermostat operation, you can reset the

thermostat by removing the wires from terminals R and C

(do not short them together) and removing batteries for 2

minutes. After resetting the thermostat, replace the wires and

batteries. If the thermostat has been reset and still does not

To reset the programming, clock and conﬁguration settings,

press

and

and the FAN button simultaneously. The

thermostat should go blank and then all segments will be

displayed momentarily.

Symptom

Possible Cause

Correction Action

No Heat/No Cool/No Fan

(common problems)

1. Blown fuse or tripped circuit breaker.

2. Furnace power switch to OFF.

3. Furnace blower compartment door or

panel loose or not properly installed.

4. Loose connection to thermostat or

system.

Replace fuse or reset breaker.

Turn switch to ON.

Replace door panel in proper position to engage safety

interlock or door switch.

Tighten connections.

No Heat

1. Pilot light not lit.

Re-light pilot.

2. Furnace Lock-Out Condition. Heat

may also be intermittent.

Many furnaces have safety devices that shut down when

a lock-out condition occurs. If the heat works intermittently

contact the furnace manufacturer or local HVAC service

person for assistance.

3. Heating system requires service or

thermostat requires replacement.

Diagnostic: Set SYSTEM Switch to HEAT and raise the

setpoint above room temperature. Within a few seconds

the thermostat should make a soft click sound. This sound

usually indicates the thermostat is operating properly. If

the thermostat does not click, try the reset operation listed

above. If the thermostat does not click after being reset

contact your heating and cooling service person or place

of purchase for a replacement. If the thermostat clicks,

contact the furnace manufacturer or a HVAC service

person to verify the heating is operating correctly.

No Cool

1. Cooling system requires service or

thermostat requires replacement.

Same as diagnostic for No Heat condition except set the

thermostat to COOL and lower the setpoint below the room

temperature. There may be up to a ﬁve minute delay before

the thermostat clicks in Cooling.

1. Possible short in wiring.

2. Possible short in thermostat.

Check each wire connection to verify they are not shorted

or touching together. No bare wire should stick out from

Heat, Cool or Fan

Runs Constantly

3. Possible short in heat/cool/fan system. under terminal block. Try resetting the thermostat as

4. FAN Switch set to Fan ON.

described above. If the condition persists the manufacturer

of your system or service person can instruct you on how

to test the Heat/Cool system for correct operation. If the

system operates correctly, replace the thermostat.

Thermostat Setting &

Thermostat Thermometer

Disagree

1. Thermostat thermometer setting

requires adjustment.

The thermometer can be adjusted +/- 4 degrees. See

Temperature Display Adjustment in the Conﬁguration Menu

section.

Furnace (Air Conditioner)

Cycles Too Fast or Too

Slow (narrow or wide

temperature swing)

1. The location of the thermostat and/or

the size of the Heating System may

be inﬂuencing the cycle rate.

Digital thermostats provide precise control and cycle faster

than older mechanical models. The system turns on and off

more frequently but runs for a shorter time so there is no

increase in energy use. If you would like an increased cycle

time, choose SL for slow cycle in the Conﬁguration menu,

step 6 (heat), 7 (cool) or 8 (heat pump). If an acceptable

cycle rate is not achieved, contact a local HVAC service

person for additional suggestions.

Forgot Keypad Lockout

Code

Hold MENU key for 20 seconds and the lockout will reset.

Thermostat does not have

Menu Screen Numbers

1. Earlier version of thermostat.

Refer to Instruction Sheet 37-7136A.

NOTES

HOMEOWNER HELP LINE: 1-800-284-2925

White-Rodgers is a business

of Emerson Electric Co.

The Emerson logo is a

trademark and service mark

of Emerson Electric Co.

www.white-rodgers.com

www.emersonclimate.com

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