White Rodgers 1F92W 71 Thermostat User Manual

About Your New Thermostat . . .

Your new White-Rodgers Digital Multi-stage/Heat Pump Thermostat uses the technology of a

solid-state microcomputer to provide precise time/temperature control. This thermostat offers

you the flexibility to design heating and cooling programs that fit your needs.

Please read this manual thoroughly before operating or programming your thermostat. If you

have questions, contact us at the address shown on the back cover of this manual.

In This Guide . . .

YOUR NEW THERMOSTAT'S

PROGRAMMING YOUR

FEATURES ........................................... 4

OPERATING YOUR THERMOSTAT ........ 5

PARTS OF THE THERMOSTAT

The Back Of the Thermostat Body

The Display

THERMOSTAT ................................... 18

PLANNING FOR YOUR NEEDS

ENTERING YOUR PROGRAM

Set Current Time and Day

Enter Heating Program

The Thermostat Buttons

Enter Cooling Program

OPERATING FEATURES

CHECK YOUR PROGRAMMING

QUESTIONS AND ANSWERS ............... 29

Operator: Save this

booklet for future use!

YOUR NEW THERMOSTAT’S FEATURES

• Five-day/two-day programming capability

• Backlit LCD displays continuous setpoint,

time, and room temperature

• Adjustable cycle times

• 9 volt Energizer^®alkaline battery backup

• Simultaneous heat and cool program

storage

• Four separate time and temperature set-

tings per 24-hour period

• Compressor long term cycle protection

• Up to 3 stages of heat and up to 2 stages

of cool

• Computed Energy Management Recov-

ery (EMR)

• Automatic changeover (operator select-

able)

• Two hour temperature override

• Manual program override (HOLD tem-

perature)

• Compressor short cycle protection

• Blower delay in the cooling cycle

• Preprogrammed temperature control

• Audio and visual prompting during opera-

tion

• Programmable blower control

• Temperature range 40° to 99°F

• °F/°C convertibility

• Compatible with optional Remote Sensor

• Electric Heat (installer-selectable)

• "Advance Program" button

• Armchair programming capability

OPERATING YOUR THERMOSTAT

Before you begin programming your new ther- The subbase is attached to the wall, but you

mostat, you should be familiar with its features can remove the thermostat body for easy pro-

and with the display and the location and gramming. To remove the thermostat body

operation of the thermostat buttons. The infor- from the subbase, grasp the thermostat body

mation in this section will help you become and gently pull it out from the bottom of the

familiar with your thermostat so that you can subbase, then pivot up. To attach the thermo-

easily program it.

stat body, line up the four terminal pins on the

upper section of the thermostat back with the

matching connector on the subbase. Insert

these, then gently pivot the thermostat body

downtoconnecttheninepinconnectorsonthe

lower portion of the thermostat back. Gently

push until the snap connectors engage. DO

NOT FORCE OR PRY THE THERMOSTAT,

as this may damage the unit.

Your thermostat consists of two parts: the

thermostat body and the subbase.

CAUTION

SYSTEM

HEAT-OFF-COOL-AUTO

Press

to turn thermostat OFF

before removing or attaching the ther-

mostat body. Equipment damage and/

or personal injury could occur.

factory preprogrammed heating tempera-

ture of 64°F and a cooling temperature of

82°F after power is restored. You must

reprogram the thermostat if this happens.

PARTS OF THE THERMOSTAT

The Back of the Thermostat Body

Turn the thermostat body over. On the back

are the 9 volt Energizer^®alkaline battery and

the option switches.

If the word BAT is flashing in the display

window, the battery is low and should be

replaced with a fresh 9 volt Energizer^®

alkaline battery. The battery will provide

power for all functions except the display

lightandaudioprompting, whichworkonly

on 24 VAC power. If the word BAT is

displayed continuously (non-flashing), the

thermostat is not being supplied with

24 VAC power and is being powered by

the battery alone.

1. The 9 volt Energizer^®alkaline battery pro-

vides power to the thermostat when the

24 VAC power is interrupted (for example,

when you remove the thermostat from the

wall for programming). A fresh battery will

maintain the stored program for approxi-

mately one week. If power loss is long

enough for the program to be lost, the

thermostat will automatically maintain a

4-pin connector

Battery

CAUTION

SYSTEM

HEAT-OFF-COOL-AUTO

Press

to turn thermostat OFF

before removing thermostat from the

wall to replace the battery.

2. You may adjust option switch #4 for auto-

matic changeover from heating to cooling

(see OPERATING FEATURES).

W18

Option switches

9-pin connector

BACK OF THERMOSTAT BODY

Other than

and

, the buttons are

Displays the setpoint temperature.

located behind the thermostat door. To open

the door, use your fingernail in the indentation

at the top center of the door. Pull the door out,

then swing the door down on its hinges.

5 DAY indicates that the displayed pro-

gram is the weekday program. 2 DAY

indicates that the displayed program is the

weekend program.

Following are brief descriptions of the display

and the thermostat buttons.

ThewordBATflashesonthedisplaywhen

the 9 volt alkaline battery is weak and

should be replaced. The word BAT will be

displayed continuously (non-flashing)

when the thermostat is operating on bat-

tery power only.

The Display

Continuously displays system mode

(HEAT, EMER, OFF, COOL, AUTO,

HOLD).Duringprogramming,theprogram

period is displayed (MOR, DAY, EVE,

NHT).

FAN

operatingcontinuously,regardlessofheat-

ing or cooling system cycling. FAN is

is displayed when the blower is

Alternately displays room temperature (F

displayed during automatic fan operation

(when the blower cycles with the heating

or cooling system).

denotes degrees Fahrenheit and C de-

notes degrees Celsius) and time of day (A

denotes AM time and P denotes PM time).

EMER. PUMP

MALF. AUX.

DAY

FAN

TIME

FWD

SET

VIEW

HOLD

SYSTEM

HEAT-OFF-COOL-AUTO

CLOCK

PRGM

TEMP

TIME

SET

DAY

RUN

ADV

FAN

ON - AUTO

BACK

PRGM

DAY

FAN

DAY

BAT

FAN

The Thermostat Buttons and Lights

anticipation setting mode.

Sets the system mode (HEATing,

Used to initiate or review thermostat pro-

gramming.

EMERgency backup, OFF, COOLing, or

AUTOmatic changeover [user selectable

feature]).

Used to start program operation after pro-

gramming. Also used to return thermostat

to program operation after being in HOLD

mode.

Selects fan operation (see #6, above).

This button is also used to program the fan

to run continuously during a program pe-

riod.

Used to manually override programming

to hold at a selected temperature (when

HOLD is displayed).

Runsdisplayforwardorbackwardthrough

time, day, or anticipation settings during

programming.

Used to advance thermostat program to

the next program period (for example,

from the MOR program to the DAY pro-

gram).

TIME

FWD

TIME

BACK

Used with

and

to set current

time and day of the week.

(Blue arrow) Lowers temperature setting

Usedduringprogrammingtosetthedayof

(40°F or 4°C minimum).

SET

CLOCK

the week. Also used with

to enter

heat pump system malfunction (refer to

heat pump manufacturer's operating

manual). A continuous (non-flashing)

PUMP light indicates that the heat pump

compressor is functioning — a flashing

PUMP light indicates that the compressor

is locked out. AUX light indicates that the

auxiliary system is operating.

(Red arrow) Raises temperature setting

(99°F or 37°C maximum)

EMER light indicates that the system is in

theemergencymode(theheatpumpcom-

pressor is off and the auxiliary system is

maintaining setpoint temperature — there

is a 5 to 10 minute startup delay on the first

emergency cycle). MALF light indicates a

16 17

EMER. PUMP

MALF. AUX.

DAY

FAN

TIME

FWD

SET

VIEW

HOLD

SYSTEM

HEAT-OFF-COOL-AUTO

CLOCK

PRGM

TEMP

TIME

SET

DAY

RUN

ADV

FAN

AUTO

BACK

PRGM

10 11 12

14 15

period, beginning at 6:00 AM, you have

programmed a temperature of 70°F. The

thermostat will automatically activate the

heating system at about 5:00 AM, so that

the programmed 70°F temperature is

reached by about 6:00 AM.

OPERATING FEATURES

Now that you are familiar with the thermostat

display and buttons, read the following infor-

mation to learn about the many features of the

thermostat.

• COMPUTED ENERGY MANAGEMENT

RECOVERY (EMR) - The thermostat's

microcomputer automatically calculates

the time it will take to change the tempera-

ture to the next program setting. Then the

thermostatwillactivatetheheatingorcool-

ing system to change the temperature so

that the desired temperature is reached at

the beginning of the next program period.

Asanexampleofthisfeature, assumethat

you have programmed your thermostat to

provide an overnight heating temperature

of 62°F, and that during the next program

• AUTOMATICCHANGEOVER—Youcan

set the thermostat to automatically switch

the system from heating to cooling as

needed.First,youmustmoveoptionswitch

#4 (located on the back of the thermostat

body) to the ON position, if it has not

already been done. To do this, turn off

24 VAC power to the thermostat. Then,

remove the thermostat body from the wall.

Check the position of switch #4 (the last

switch on the right). If it is ON (up), simply

put the thermostat back on the wall and

restore 24 VAC power. If the switch is OFF

(down), use a pencil or small screwdriver

to move the switch to the ON position (see

figure at right). Leave the battery out of the

thermostat for at least two minutes, to

allow the thermostat to reset itself. DO

NOT MOVE ANY OTHER OPTION

SWITCH, as it may affect thermostat op-

eration. Replace the battery, reprogram

the thermostat if necessary, put the ther-

mostat back on the wall, and restore

24 VAC power. To set the thermostat for

automaticchangeoverafterprogramming,

SYSTEM

Automatic Changeover (ON)

Switch #1 set at installation (DO NOT CHANGE)

Switch #2 set at installation (DO NOT CHANGE)

Switch #3 set at installation (DO NOT CHANGE)

Switch #4 ON

In the AUTO mode, the thermostat will not

allow the temperature separation between the

highestheatsettingandthelowestcoolsetting

to be less that 1°F. For example, if the highest

heat setting is 76°F, the lowest cool setting

cannot be below 77°F (see diagram below).

press

to set the thermostat to

HEAT-OFF-COOL-AUTO

AUTO (the setpoint display is blank in the

AUTO mode). The system will now auto-

maticallyswitchbetweenheatingandcool-

ing depending on the actual room tem-

perature.

COOLING TEMPERATURES

DEAD BAND 1°F

HEATING TEMPERATURES

conservation when the building is unoccu-

pied for an extended period of time.

• TWO HOUR TEMPERATURE OVER-

RIDE — Press or until the

display shows the temperature you want.

The thermostat will override current pro-

grammingandkeeptheroomtemperature

at the selected temperature for two hours.

After two hours, the thermostat will auto-

matically revert to the program.

TIME

FWD

• °F/°C CONVERTIBILITY — Press

TIME

BACK

and

at the same time until the tem-

perature display is in °C (Celsius). To

display °F, repeat the process.

• ADJUSTABLE HEATING AND COOL-

ING CYCLE TIMES (ANTICIPATION) —

If the heating/cooling system is turning on

and off too often (short cycles) or not often

enough (long cycles), you may want to

adjust the anticipation setting.

• HOLD TEMPERATURE — The thermo-

stat can hold any temperature within its

range for an indefinite period, without re-

HOLD

vertingtotheprogram.Press

.HOLD

TEMP

willbedisplayed. Thenchoosethedesired

holdtemperaturebypressing or

CAUTION

The thermostat will hold the room tem-

perature at the selected setting until you

An anticipation setting of less than 10

may cause decreased compressor life.

RUN

press

to start program operation

PRGM

again. This feature is ideal for energy

SET

CLOCK

show COOL 14 (factory preprogrammed

To adjust HEAT anticipation, press

TIME

FWD

cooling anticipation). Use the

and

SET

DAY

and

at the same time. The display

TIME

BACK

buttons to adjust anticipation. To set

will show HEAT 18. You may select any

anticipation setting from 4 to 40 (note that

for add-on heat pump systems, a mini-

mum anticipation of 10 is recom-

mended). When you adjust anticipation,

increase or decrease the displayed num-

ber by only one or two digits, then let the

system run for a while to see if the adjust-

ment is sufficient. If the heat cycles are too

TIME

AUXILIARY heat anticipation (not appli-

SET

CLOCK

cable to multi-stage use), press

and

SET

DAY

at the same time again. The display

will show AUX 8 (factory preprogrammed

TIME

FWD

auxiliary anticipation). Use the

and

TIME

BACK

buttons to adjust anticipation. Press

to return to your program.

short, press

to increase the cycle

FWD

RUN

PRGM

time. If the heat cycles are too long, press

TIME

BACK

•

LOWBATTERYINDICATOR—Theword

BAT will flash on the display if the battery

is low and should be replaced.

to decrease the cycle time. To set

SET

DAY

COOL anticipation, press

and

CLOCK

at the same time again. The display will

•

AUDIO PROMPTING — Each time you

press a button, the thermostat will beep.

SYSTEM

HEAT-OFF-COOL-AUTO

b) Pressing

modes.

to change operating

BACKLIT DISPLAY — When you press

any button on the thermostat, the display

is lit for approximately eight seconds (this

feature works only when the thermostat is

attached to the wall and 24 VAC power is

present to the thermostat).

c) Pressing

or to create a call

for COOL or HEAT too soon after a

previous call.

During lockout in the HEAT mode, the

green compressor (PUMP) LED will flash.

During lockout in the COOL mode, the

blower will operate, but compressor op-

eration will be delayed.

•

COMPRESSOR SHORT CYCLE PRO-

TECTION — To protect your compressor

from potential damage due to rapid cy-

cling, thisthermostathasabuilt-indelayof

5 minutes between cooling cycles. The

following may cause a time delay inCOOL

or HEAT:

Auxiliaryheatisfunctionalduringthecom-

pressorlockoutandcanbeusedasneeded

to maintain room temperature.

• COMPRESSOR LONG TERM CYCLE

PROTECTION — If your system begins to

operate too soon after an extended power

outage, the compressor may be damaged

a) Return of power after a momentary

power outage.

due to crankcase oil temperature change.

This thermostat has a built-in time delay of

onehourlessthanthepowerloss(upto12

hours). When power is restored to the

system, heaters in the system will begin to

heat the crankcase oils. The thermostat's

time delay will lock out the compressor to

prevent its operation until the compressor

oil is sufficiently warmed. During the lock-

out time period, the auxiliary heating sys-

tem will operate to maintain setpoint tem-

perature.

• SYSTEM INDICATOR LIGHTS — The

four lights on the upper right part of the

thermostatindicatesystemoperation(see

PARTS OF THE THERMOSTAT for spe-

cific descriptions of what each light indi-

cates).

• PROGRAMMABLEBLOWERCONTROL

— You may program the fan blower to run

continuously during any given program

period, regardless of the cycling of the

heating or cooling system. During pro-

gramming,afterenteringthetimeandtem-

FAN

– AUTO

For example, if a power outage of three

hoursoccurs,thecompressorwillbelocked

out for two hours.

perature for the time period, press

until FAN

is displayed. To override

FAN

– AUTO

constant fan, press

displayed.

until FAN

PROGRAMMING YOUR THERMOSTAT

Now you are ready to program your thermo-

stat. This section will help you plan and pro-

gram your thermostat to meet your needs.

PLANNING FOR YOUR NEEDS

This thermostat will store separate heating

and cooling programs for five-day (weekday)

and two-day (weekend) operation. Usually,

the five-day program is set to run Monday

throughFriday, andthetwo-dayprogramisset

to run Saturday and Sunday. However, you

may choose any five consecutive days to be

your weekday program days (such as Sunday

through Thursday; in this case, your weekend

program would run on Friday and Saturday).

For maximum comfort and efficiency, keep the

following guidelines in mind when planning

your program.

• When heating (cooling) your building, pro-

gram the temperatures to be cooler

(warmer) when the building is vacant or

during periods of low activity.

• During early morning hours, the need for

cooling is usually minimal.

First, you should answer the following ques-

tions to help you decide what your needs are.

If you are using the thermostat for a commer-

cial application (a store, office building, etc.),

answer questions 1 through 4. If you are using

the thermostat in your home, answer ques- 3a. Whattimedothebuildingoccupantsreach

tions 5 through 8. Keep in mind that you should

planforbothweekdayandweekendprograms.

aminimumactivitylevel(limitedpersonnel

in building)? These will be your EVE

(evening) temperature settings.

FOR COMMERCIAL APPLICATIONS:

b. What temperature should the building be

at this time?

1a. What time does the first person arrive at

the building in the morning?

4a. What time does the building become

vacant?

b. What temperature should the building be

at this time? (heating? cooling?) These

will be your MOR (morning) temperature

settings.

b. What temperature should the building be

atthistime?ThesewillbeyourNHT(night)

temperature settings.

2a. Whattimedothebuildingoccupantsreach

a maximum activity level (using lights,

equipment, meeting rooms, etc.)?

IN YOUR HOME:

5a. What time does the first person get up in

the morning?

b. What temperature should the building be

at this time? These will be your DAY tem-

perature settings.

b. What temperature should the house be at

this time? These will be your MOR (morn-

ing) temperature settings.

6a. What time does the last person leave the

house in the morning?

b. What temperature should the house be at

this time? These will be your NHT (night)

temperature settings.

b. What temperature should the house be at

this time? These will be your DAY tem- Now look at the factory preprogrammed times

perature settings.

and temperatures shown below. If this pro-

RUN

PRGM

7a. What time does the first person arrive

home in the evening?

gramwillsuityourneeds, simplypress

begin running the factory preset program.

b. What temperature should the house be at

thistime?ThesewillbeyourEVE(evening)

temperature settings.

If you want to change the preprogrammed

times and temperatures, do the following.

8a. What time does the last person go to bed

at night?

FACTORY PREPROGRAMMING

Cooling Program for ALL Days of the Week:

Heating Program for ALL days of the Week:

TEMP

PERIOD

MOR

DAY

EVE

NHT

TIME

TEMP

PERIOD

MOR

DAY

EVE

NHT

TIME

5:00 AM

9:00 AM

4:00 PM

10:00 PM

5:00 AM

9:00 AM

4:00 PM

10:00 PM

temperatures for consecutive time periods.

You can choose start times, heating tempera-

NOTE

To operate properly in the AUTO mode, there tures,andcoolingtemperaturesindependently

must be a minimum 1°F separation between for both weekday and weekend programs (for

the highest heat temperature and the lowest example, you may select 5:00 AM and 70° as

cool temperature (see diagram below).

the weekday MOR heating start time and

temperature, and choose 7:00 AM and 76° as

the weekday MOR cooling start time and

temperature). Use the following table to plan

your program time periods, and the tempera-

tures you want during each period. You may

also want to look at the sample program table

to get an idea of how the thermostat can be

programmed.

COOLING TEMPERATURES

DEAD BAND 1°F

HEATING TEMPERATURES

Determine the time periods and heating and

cooling temperatures for your weekday pro-

gram. You must program 4 periods for each

day (MOR, DAY, EVE, and NHT). However,

you may use the same heating and cooling

Heating/Cooling Schedule Plan

WEEKEND (2 DAY)

WEEKDAY (5 DAY)

Start

Time

Start

Time

Temperature

MOR HEAT

DAY HEAT

EVE HEAT

NHT HEAT

MOR COOL

DAY COOL

EVE COOL

NHT COOL

SAMPLE

Heating/Cooling Schedule Plan

WEEKEND (2 DAY)

WEEKDAY (5 DAY)

Start

Time

Start

Time

Temperature

MOR HEAT

DAY HEAT

EVE HEAT

NHT HEAT

MOR COOL

DAY COOL

EVE COOL

NHT COOL

5:30 AM

68°

7:30 AM

2:00 PM

6:00 PM

12:00 AM

8:00 AM

2:00 PM

6:00 PM

12:00 AM

68°

8:00 AM

4:30 PM

11:00 PM

8:00 AM

12:00 PM

4:30 PM

11:00 PM

66°

70°

66°

76°

78°

74°

78°

70°

66°

76°

74°

78°

Set Current Time and Day

ENTERING YOUR PROGRAM

SET

CLOCK

Follow these steps to enter the heating and

cooling programs you have selected.

1. Press

once. The display will show

minutes only.

NOTE

EXAMPLE:

TIME

FWD

TIME

BACK

We recommend that you remove the thermo-

stat from the wall for programming (especially

for entering cooling programming). A fresh 9

volt Energizer^®alkaline battery must be in-

stalled to perform off-wall programming. BE

SYSTEM

2. Press and hold either

until

you reach the correct minutes.

SET

CLOCK

3. Press

once. The display window will

show the hour only.

EXAMPLE:

SURE TO PRESS

TO TURN THER-

HEAT-OFF-COOL-AUTO

MOSTAT OFF BEFORE REATTACHING

THERMOSTAT TO SUBBASE!

TIME

FWD

TIME

BACK

4. Press and hold either

until

you reach the correct hour and AM/PM

designation (AM begins at midnight; PM

begins at noon).

You cannot program the thermostat with the

SYSTEM SWITCH in the AUTO position.

SET

DAY

VIEW

PRGM

5. Press

once. The display will show

until you are at the point where you

the day of the week as an abbreviation stopped programming. Then you may con-

(MO for Monday, TU for Tuesday, etc.).

tinue to enter your programs normally. If you

want to stop programming at any time, simply

TIME

FWD

TIME

BACK

6. Press and hold either

until

RUN

press

to resume program operation.

PRGM

you reach the current day of the week.

SYSTEM

HEAT-OFF-COOL-AUTO

RUN

PRGM

1. Press

2. Press

until HEAT is displayed.

7. Press

once. The display will show

the correct time and room temperature

alternately.

VIEW

PRGM

once. 5 DAY (indicating

weekday program), and MOR, represent-

ing the morning heating period, will ap-

pear in the display. Also displayed are

the currently programmed start time for

the MOR period and the currently pro-

grammed temperature.

Enter Heating Program

During programming, if you don’t press any

buttons for 5 minutes, the thermostat will enter

the HOLD mode and will maintain a constant

temperature. The display will revert to the

alternating time/temperature display. To re-

sume programming after this happens, press

EXAMPLE:

5 DAY

This display window shows that for the

weekday MOR period, the start time is

5:00 AM, and 64° is the programmed tem-

perature(thisexamplereflectsfactorypre-

programming).

VIEW

PRGM

6. Press

. The currently programmed

start time and heating temperature for

weekday DAY will be displayed.

7. Repeatsteps3through5toselectthestart

timeandheatingtemperaturefortheweek-

day DAY program.

3. To change the displayed start time to your

selected start time for weekday MOR heat

8. Repeat steps 3 through 7 for the weekday

TIME

FWD

TIME

BACK

program, press

until your

EVE and NHT heating programs.

selected time is displayed. The time will

change in 15 minute increments.

9. After entering your weekday heating pro-

gram, repeat steps 1 through 8 for your

weekend programming (keep in mind that

for weekend programming, the display

should be changed from 5 DAY to 2 DAY).

4. Press

until you reach your

selected weekday MOR heating tempera-

ture.

5. Ifyouwantthefantoruncontinuouslyduring

10. When you have completed entering your

FAN

this period, press

displayed.

until FAN

RUN

– AUTO

heating program, press

PRGM

Enter Cooling Program

SYSTEM

HEAT-OFF-COOL-AUTO

1. Press

until COOL is displayed.

CAUTION

2. Enter your cooling program by following

the same procedure you followed for en-

tering your heating program.

If outside temperature is below 50°F,

we recommend that you remove the

thermostat from the wall before pro-

ceedingwiththefollowingstepstopro-

gram cooling temperatures. Personal

injury or property damage may occur

duetoairconditionercompressorslug-

ging. A fresh 9 volt Energizer^®alkaline

battery must be installed to perform

off-wall programming. Programming

away from the wall should prevent ac-

cidental compressor operation. BE

SYSTEM

CHECK YOUR PROGRAMMING

Follow these steps to check your thermostat

programming one final time before beginning

thermostat operation.

SYSTEM

HEAT-OFF-COOL-AUTO

1. Press

until HEAT is displayed.

VIEW

PRGM

2. Press and hold

to view the heating

periodtimesandtemperaturesinsequence

for weekday, then weekend MOR, DAY,

EVE, and NHT program periods.

SURE TO PRESS

TO TURN

HEAT-OFF-COOL-AUTO

THERMOSTAT OFF BEFORE REAT-

TACHING TO THE SUBBASE!

RUN

PRGM

3. Press

SYSTEM

HEAT-OFF-COOL-AUTO

SYSTEM

HEAT-OFF-COOL-AUTO

4. Press

until COOL is displayed.

Press

until OFF is displayed. Reattach

SYSTEM

HEAT-OFF-COOL-AUTO

5. Repeat step 2 to check cooling tempera-

tures.

thermostat to subbase. Then press

select the operation mode you want (HEAT,

RUN

PRGM

FAN

– AUTO

6. Press

to begin program operation.

COOL, AUTO). Press

until FAN

displayed (automatic cycling).

YOUR THERMOSTAT IS NOW COM-

PLETELY PROGRAMMED AND READY TO

AUTOMATICALLY PROVIDE MAXIMUM

COMFORT AND EFFICIENCY!

QUESTIONS AND ANSWERS

1. How can I permanently change a part of

will not change when the EVE period be-

gins.SeePROGRAMMINGYOURTHER-

MOSTAT.

my program?

VIEW

PRGM

Press

until you reach the time/tem-

3. How can I finish my programming if the

display has already changed to time/

temperature?

perature schedule you want. Then press

TIME

FWD

TIME

BACK

and

tochange

During programming, if no buttons are

pressed for five minutes, the thermostat

will enter the HOLD mode and maintain a

constant temperature. The display will

change to the time/temperature mode. To

VIEW

theprogram.SeePROGRAMMINGYOUR

THERMOSTAT.

2. How can I have no change in tempera-

ture from one time period to another?

Simply select the same temperature for

eachconsecutivetimeperiod.Forexample,

you may select the same weekday EVE

cooling temperature as you did for week-

day DAY, which means the temperature

resume programming, press

until

PRGM

you return to the point where you stopped

programming. Then you may continue to

program the thermostat normally. If you

want to stop programming at this point,

for about one week with no 24 VAC power

present to the thermostat See OPERAT-

ING YOUR THERMOSTAT.

RUN

PRGM

press

to start the normal program

function. See PROGRAMMING YOUR

THERMOSTAT.

5. Why can’t I program the thermostat in

the AUTO mode?

4. What happens if the electricity goes off

or is manually shut off?

The thermostat can only be programmed

intheHEATand COOLmodes. SeePRO-

GRAMMING YOUR THERMOSTAT.

If you have not installed a 9 volt alkaline

battery, the display will go blank and the

program will be lost in approximately one

minute. When electricity is restored, the

thermostat will maintain a heating tem-

perature of 64°F and a cooling tempera-

ture of 82°F until you re-enter your pro-

gram. Setpoint temperature will not be

displayed.

6. What can cause the thermostat display

to freeze or go blank?

A completely blank display may indicate

that power has been lost to the thermostat

and the backup battery is also dead. How-

ever, if there is power to the thermostat

and the display is blank or frozen, static

discharge is probably the cause.

If a fresh 9 volt Energizer^®alkaline battery

isinstalled, theprogramwillbemaintained

During periods of low humidity (especially

during cold weather), you may feel or see

a spark discharge when you touch the

thermostat. This may cause the program

to be lost or the thermostat to display

incorrectly. To correct this, remove the

thermostat from the wall and disconnect

the battery. Wait about one minute, then

reconnect the battery. The thermostat will

revert to the factory preset program until

you reprogram the thermostat. If you don’t

want to reprogram the thermostat immedi-

SYSTEM

build-up before touching the thermostat.

SeeOPERATINGYOURTHERMOSTAT.

7. Why won’t the setpoint temperature go

to the temperature I want?

In the AUTO mode, the highest heating

setpointtemperatureyouselectmustbeat

least 1°F lower than the lowest cooling

setpoint temperature you select (for ex-

ample, if 70°F is your lowest selected

cooling temperature, you cannot select a

heatingtemperatureanyhigherthan69°F).

If such a conflict exists, you must set the

lowestcoolingtemperaturehigherinorder

to set the heating temperature higher. To

set a lower cooling temperature, you must

select a lower heating temperature. See

PROGRAMMINGYOURTHERMOSTAT.

ately, press

until OFF is displayed

HEAT-OFF-COOL-AUTO

and replace the thermostat on the wall.

RUN

PRGM

Then press

to begin the factory

preset program. Or you may reprogram

the thermostat, then replace it on the wall.

To prevent further static discharge prob-

lems,touchanotherobjecttoreleasestatic

8. Why doesn’t the display light come on 10. The display shows a continuous (non-

when I press a button? Why don’t I hear

a beep when I press a button?

flashing) BAT. What does this mean?

The thermostat is not being supplied with

24 VAC power. The thermostat is operat-

ingonbatterypoweralone.SeeOPERAT-

ING YOUR THERMOSTAT.

The display light and audio prompting

(beep) only work when the thermostat is

onthewalland24VACpowerispresentto

the thermostat. These features will not

work on battery power alone. See OPER-

ATING YOUR THERMOSTAT.

11. Why won’t the system turn on, even

though the thermostat display is func-

tioning normally?

9. The display is flashing BAT. What does

this mean?

Either the compressor lockout feature is in

operationorthethermostatisnotcurrently

calling for heat or cool. Wait about 5 min-

utes for the compressor lockout to expire.

If the system is still not running, read the

cautionary statement on the next page.

Then, if conditions permit, use the

The 9 volt battery installed in the thermo-

stat is low and should be replaced with a

fresh 9 volt Energizer^®alkaline battery.

SeeOPERATINGYOURTHERMOSTAT.

buttons to move the temperature

above or below the setpoint temperature.

SeeOPERATINGYOURTHERMOSTAT.

•

You have programmed the incorrect

day or time. Check your programming

(besurethatthetimesyouprogrammed

arecorrectAMorPMtimes). SeePRO-

GRAMMING YOUR THERMOSTAT.

CAUTION

Iftheoutsidetemperatureisbelow50°F,

DO NOT use to move the tempera-

ture below the setpoint temperature.

Property damage may result due to

compressor operation in cold weather.

•

The thermostat is in the HOLD mode.

RUN

PRGM

Press

to start program operation.

12. Whydoesn’tthetemperaturechangeat

the time I programmed?

See OPERATING YOUR THERMO-

STAT.

There may be a number of causes for this

situation. The following are primary rea-

sons.

The compressor lockout feature is op-

erating; wait about 5 minutes for sys-

tem to begin running. See OPERAT-

ING YOUR THERMOSTAT.

•

The EMR function is operating. The

EMR function will bring the system on

automatically to bring the temperature

to the selected level by the beginning of

the next program period. See OPER-

ATING YOUR THERMOSTAT.

13. Why does the blower fan keep running 15. Between heating and cooling seasons,

after the system has turned off?

I want to turn my system off. Can I do

this without affecting my thermostat

programming?

•

You have programmed the fan to run

continuously during this period. See

PROGRAMMING YOUR THERMO-

STAT.

Any time you wish to turn your system off,

SYSTEM

HEAT-OFF-COOL-AUTO

simplypress

untilthedisplayshows

•

The blower delay feature is operating.

This energy saving feature continues

toblowconditionedairthroughtheducts

after the system has turned off, rather

than letting the air dissipate.

OFF. This will not affect your thermostat's

programming in any way. To turn the sys-

SYSTEM

tem back on, press

until HEAT,

HEAT-OFF-COOL-AUTO

COOL, etc. is displayed. The system will

automatically begin operating according

to the current thermostat program, unless

the thermostat is in the HOLD mode. See

OPERATING YOUR THERMOSTAT.

14. Why is the system turning on and off so

frequently (seldom)?

The anticipation setting is too low (high).

To change anticipation settings, see OP-

ERATING YOUR THERMOSTAT.

16. I live in an area where daylight savings

time is observed. How do I change the

thermostat clock twice a year without

affecting thermostat programming?

dead. If you are changing the battery after

seeing a flashing BAT on the display, the

installed battery may be dead. If you re-

movetheoldbatteryandinstallafreshone

within one minute, you should not lose

your thermostat programming. After in-

stalling a new battery, follow the proce-

duresinCHECKYOURPROGRAMMING

to determine whether your programming

was maintained. If the thermostat main-

SYSTEM

To change your clock, follow the instruc-

tions for setting current time and day. See

ENTERING YOUR PROGRAM. Thermo-

statprogrammingisnotaffectedwhenyou

change the clock.

17. Do I have to reprogram my thermostat

after I change the battery?

tainsprogramming,press

untilOFF

HEAT-OFF-COOL-AUTO

is displayed, put the thermostat back on

When the thermostat is on the wall and the

system has power, the thermostat is being

lost, or if the thermostat is removed from

the wall, the program will be retained for

approximately one minute if there is no

batteryinstalledoriftheinstalledbatteryis

SYSTEM

HEAT-OFF-COOL-AUTO

the wall, press

to select the oper-

RUN

PRGM

ating mode you want, then press

start program operation. If the program is

lost, reprogram the thermostat. See PRO-

GRAMMING YOUR THERMOSTAT.