White Rodgers 1F80 71 Thermostat User Manual

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1F80-71

Programmable Electronic

Digital Automatic Changeover Single Stage Thermostat

INSTALLATION AND

WHITE-RODGERS

OPERATION INSTRUCTIONS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY

BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE

PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

Your new White-Rodgers 5-Day/2-Day Single Stage Digital

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.

• Optional Energy Management Recovery (EMR)

• Optional B and O terminals

• Preprogrammed temperature control

• LCD continuously displays set point, and alternately dis-

plays time and room temperature

• Temperature override until next program period

• Manual program override (HOLD temperature)

• °F/°C convertibility

Features:

• Separate 5-day (weekday) and 2-day (weekend) programming

with four separate time/temperature periods per program

• Temperature range 45° to 90°F

• Keypad lockout

• Armchair programming capability

• Simultaneous heat and cool program storage

• Automatic changeover

• Optional C terminal (dual power option)

PRECAUTIONS

CAUTION

Thisthermostatisintendedforusewitha24-voltsystem;donot

use this thermostat with a millivolt or line voltage system. If in

doubt about whether your wiring is millivolt, line, or low voltage,

have it inspected by a qualified heating and air conditioning

contractor or electrician.

To prevent electrical shock and/or equipment damage

disconnect electric power to system at main fuse or

circuit breaker box until installation is complete.

Do not exceed the specification ratings.

WARNING

Allwiringmustconformtolocalandnationalelectricalcodesand

ordinances.

Do not use on circuits exceeding specified voltage.

Higher voltage will damage control and could cause

shock or fire hazard.

This control is a precision instrument, and should be handled

carefully. Roughhandlingordistortingcomponentscouldcause

the control to malfunction.

Do not short out terminals on gas valve or primary

control to test. Short or incorrect wiring will damage

thermostat and could cause personal injury and/or

property damage.

SPECIFICATIONS

ELECTRICAL DATA

APPLICATIONS

Electrical Rating:

For use with:

8 to 30 VAC 50/60 Hz. or D.C.

0.05 to 1.5 Amps (Load per terminal)

1.5 Amps Maximum Total Load (All terminals combined)

•

Standard heat/cool or heat only systems

Electric heat systems

Gas or oil fired systems

Gas systems with intermittent ignition devices (I.I.D.)

and/or vent dampers

Hydronic (hot water or steam) systems

THERMAL DATA

Setpoint Temperature Range:

45°F to 90°F (7°C to 32°C)

Operating Ambient Temperature Range:

32°F to 105°F

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-40°F to 150°F

•

DO NOT USE WITH:

•

Multi-stage systems

Systems exceeding 30 VAC and 1.5 amps

Millivolt systems

3-wire zoned hydronic heating systems

WHITE-RODGERS DIVISION

PART NO. 37-6120A

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123-5398

Printed in U.S.A.

9934

INSTALLATION

REMOVE OLD THERMOSTAT

1. Shut off electricity at the main fuse box until installation is

complete. Ensure that electrical power is disconnected.

2. Remove the front cover of the old thermostat. With wires

still attached, remove wall plate from the wall. If the old

thermostathasawallmountingplate,removethethermostat

and the wall mounting plate as an assembly.

W903

3. Identifyeachwireattachedtotheoldthermostatusingthe

CUT TO

DEFEAT EMR

labels enclosed with the new thermostat.

4. Disconnect the wires from old thermostat one at a time. DO

GAS ELECTRIC

W905

NOT LET WIRES FALL BACK INTO THE WALL.

CUT FOR

LONGER

CYCLES

5. Install new thermostat using the following procedures.

PRE-INSTALLATION SET-UP

Figure 1. Back of thermostat base

1. Remove the packing material from the thermostat.

Alkaline batteries (3 “AA”–

install “+” ends to the left)

2. This thermostat is configured from the factory to operate a

heat/cool, fossil fuel (gas, oil, etc.), forced air system. It is

configured correctly for any system that DOES NOT require

the thermostat to energize the fan on a call for heat.

Screw anchors

If your system is an electric heat or heat-pump system that

REQUIRES the thermostat to turn on the fan on a call for

heat, locate the GAS/ELECTRIC switch on the back of the

thermostat (see fig. 1) and switch it to the ELECTRIC

position. This will allow the thermostat to energize the fan

immediatelyonacallforheat.Ifyouareunsureiftheheating/

cooling system requires the thermostat to control the fan,

contact a qualified heating and air conditioning service

person.

Reset

button

3. Two jumpers are also located on the back of the thermostat,

so that you may customize the thermostat to meet your

individual preference (see fig. 1). In most applications, the

factory jumper settings provide the most comfortable and

convenient thermostat operation.

Mounting

holes

Figure 2. Thermostat base

Jumper wire W905 determines how fast the system cycles

on and off, based on temperature change. As shipped from

the factory, the thermostat will maintain a very consistent

room temperature, usually within 1°F of the thermostat

setting. To achieve a slower on and off cycle, providing a

slightly wider temperature span, cut and separate jumper

wire W905.

INSTALLING THE THERMOSTAT

1. Gently remove the cover by pulling it straight off the base.

Forcing or prying on the unit may cause damage to the unit.

2. Remove the battery tab. With the batteries installed, the

Armchair Programming feature allows you to program the

thermostat before installing it on the wall.

JumperwireW903controlstheEnergyManagementRecov-

ery (EMR) feature. EMR allows the thermostat to energize

the heating system up to 30 minutes before the time pro-

grammed into the thermostat. The thermostat will then

energize the system to gradually raise the temperature to

your programmed temperature by using the most efficient

stage of heat practical.

3. Pull wires through the hole in the thermostat base and place

the base over the hole in the wall. Mark mounting hole

locations on the wall using the base as a template.

4. Move the base out of the way. Drill mounting holes.

For example, assume that the thermostat is programmed

overnightto66°Fandtheroomtemperatureis66°. Ifthenext

programis7AM, 70°F(anincreaseof4°), thethermostatwill

start the system 30 minutes before 7 AM. If the temperature

in the room is within 2°F of your next programmed tempera-

ture, the thermostat will not start the system early.

5. Fasten the base loosely to the wall, as shown in fig. 2, using

two mounting screws. Place a level against the bottom of the

base, adjust until level, and then tighten the screws. (Level-

ing is for appearance only and will not affect thermostat

operation.) If you are using existing mounting holes, or if the

holes drilled are too large and do not allow you to tighten the

base snugly, use plastic screw anchors to secure the base.

DO NOT clip jumper wire W903 unless you wish to perma-

nently disable the EMR feature.

6. Check that the system is turned off. Connect the wires

beneath the terminal screws on the base using the appropri-

ate wiring diagram (see figs. 3 through 5).

7. Push excess wire into wall and plug hole with a fire-resistant

material(suchasfiberglassinsulation)topreventdraftsfrom

affecting thermostat operation.

(Instructions continue on page 4.)

NOTE

The following wiring diagrams show typical terminal identifica- Relay contacts shown are thermostatically operated.

tion and wiring. For proper installation, refer to the original

manufacturer's instructions.

* The 24 Volt neutral connection

to terminal C on the thermostat

is not required if you replace

Thermostat

the batteries once a year with

Control

fresh “AA” Energizer^®alkaline

batteries.

Circuit

THERMOSTAT

SYSTEM

Energized

in HEAT

Cooling

System

Heating

System

Hot

24 VAC

120 VAC

Neutral

Fan

Energized

in COOL

Relay

TRANSFORMER

Figure 3. Typical wiring diagram for single transformer systems

* The 24 Volt neutral connection

to terminal C on the thermostat

is not required if you replace

the batteries once a year with

fresh “AA” Energizer^®alkaline

batteries.

Thermostat

Control

Circuit

THERMOSTAT

SYSTEM

CUT AND

TAPE OFF!

Hot

Cooling

System

Energized

in COOL

Heating

System

120 VAC

24 VAC

Hot

Neutral

24 VAC

120 VAC

Neutral

TRANSFORMER

Energized

in HEAT

Fan

Relay

TRANSFORMER

TWO COMMONS MUST

BE JUMPERED TOGETHER!

Figure 4. Typical wiring diagram for two-transformer systems with NO safety circuits

* The 24 Volt neutral connection

Thermostat

to terminal C on the thermostat

Control

is not required if you replace

Circuit

the batteries once a year with

fresh “AA” Energizer^®alkaline

THERMOSTAT

SYSTEM

batteries.

Heating

System

Cooling

System

Energized

in COOL

Limit or

Safety

Switches

Limit or

Safety

Switches

Hot

24 VAC

120 VAC

Neutral

Energized

in HEAT

Fan

24 VAC

Accessory

Relay N.O.

Contact

HEATING

TRANSFORMER

Relay

Common

Limit or

Safety

Switches

Limit or

Safety

Switches

Hot

TWO COMMONS MUST

BE JUMPERED TOGETHER!

24 VAC

120 VAC

Common

Neutral

COOLING

TRANSFORMER

Figure 5. Typical wiring diagram for two-transformer systems with safety circuits in BOTH systems

CHECK THERMOSTAT OPERATION

LOCKOUT BYPASS OPTION

NOTE

FOR QUALIFIED SERVICE TECHNICIANS’ USE

ONLY.OPERATORSSHOULDNOTUSETHISFEA-

TURE DUE TO POSSIBILITY OF EQUIPMENT OR

PROPERTY DAMAGE, OR PERSONAL INJURY.

If at any time during testing, your system does not operate

properly, contact a qualified serviceperson.

Fan Operation

1. Turn on power to the system.

COMPRESSOR SHORT TERM

CYCLE PROTECTION

2. Press SYSTEM button until the system is OFF.

3. MoveFANswitchtoON.Theblowershouldbegintooperate.

4. Move FAN switch to AUTO position. The blower should stop

This thermostat has a built-in short term (5-minute)

time delay. During this 5-minute period, the thermo-

stat will lock out the compressor to allow head pres-

sure to stabilize. If you want to override this feature

within a short period of time.

Heating System

1. Press SYSTEM button until HEAT is displayed. Iftheheating

while testing thermostat operation, simply press

system has a standing pilot, be sure to light it.

and

buttons at the same time.

2. Press

to adjust thermostat setting above room tempera-

ture. The heating system should begin to operate.

DO NOT USE THE LOCKOUT BYPASS OPTION

UNLESSTHECOMPRESSOROILHEATERSHAVE

BEEN OPERATIONAL FOR 6 HOURS AND THE

SYSTEM HAS NOT BEEN OPERATIONAL FOR AT

LEAST 5 MINUTES.

3. Press

to adjust temperature setting below room tem-

perature. The heating system should stop operating.

Cooling System

This thermostat has a built-in short-term (5-minute) time delay.

This feature is activated after the compressor shuts down and

the setpoint is changed within the 5-minute period. During this

5-minute period, COOL will flash on the display indicating that

the thermostat has locked out the compressor to allow head

pressure to stabilize. This thermostat does not sense AC power

loss and therefore does not activate the short term compressor

protection feature when power is restored.

CAUTION

Topreventcompressorand/orpropertydamage, ifthe

outdoor temperature is below 50°F, DO NOT operate

the cooling system.

1. Press SYSTEM button until COOL is displayed.

2. Press

to adjust thermostat setting below room tempera-

ture.Theblowershouldcomeonimmediatelyonhighspeed,

followed by cold air circulation

3. Press

to adjust temperature setting above room tem-

perature. The cooling system should stop operating.

OPERATION

Before you begin programming your thermostat, you should be

familiarwithitsfeaturesandwiththedisplayandthelocationand

operation of the thermostat buttons. Your thermostat consists of

two parts: the thermostat cover and the base. To remove the

cover, gently pull it straight out from the base. To replace the

cover, line up the cover with the base and press gently until the

cover snaps onto the base.

THE THERMOSTAT BASE

SET TIME VIEW PRGM RUN PRGM HOLD TEMP

SYSTEM

FAN ON

AUTO

Other than

and

, the following buttons and switches are

COOL-OFF-HEAT-AUTO

located behind the door on the bottom of the thermostat cover

(see fig. 6). Pull the door down to open it.

The Thermostat Buttons and Switches

(Red arrow) Raises temperature setting.

(Blue arrow) Lowers temperature setting.

SET TIME button.

MO TU WE TH FR

SA SU

HEAT ON

COOL ON

VIEW PRGM (program) button.

RUN PRGM (program) button.

HOLD TEMPerature button.

BATT HOLD AUTO

15 14

13 12 10 10

Figure 6. Thermostat display, buttons, and switches

SYSTEM button (COOL, OFF, HEAT, AUTO).

FAN switch (ON, AUTO).

• AUTOMATIC CHANGEOVER —If you have a heating/

cooling system, you can set the thermostat to automatically

switch from heat to cool as needed to maintain setpoint

temperature. To select this mode, press SYSTEM button

until AUTO is displayed along with HEAT or COOL, iden-

tifying the program automatically selected.

The Display

Indicates day of the week.

HEAT is displayed when the SYSTEM button has been

pressed to put the thermostat in the HEAT mode. COOL is

displayed when the SYSTEM button has been pressed to

put the thermostat in the COOL mode. COOL is displayed

(flashing) when the compressor is in lockout mode. AUTO

is displayed when the SYSTEM button has been pressed to

put the thermostat in the automatic changeover (AUTO)

mode. ON indicates that the heating or cooling system is

running.

In AUTO mode, pressing

and

at the same time will

change the displayed setpoint temperature to the setpoint

of the other mode (HEAT or COOL). This allows you to

change both the HEAT and COOL setpoints, if desired.

• TOTAL KEYPAD LOCKOUT — This security feature al-

lows you to lock out the thermostat buttons to prevent

unauthorized tampering. To select this feature after pro-

gramming, pressSETTIMEandRUNPRGMbuttonsatthe

same time and hold until LK is displayed. To unlock the

thermostat, press SET TIME and RUN PRGM buttons at

the same time until LK is no longer displayed.

Alternately displays current time and temperature.

The word HOLD is displayed when the thermostat is in the

HOLD mode.

• TEMPERATURE OVERRIDE — Press

until the

BATT is displayed when approximately 70% of battery life

display shows the temperature you want. The thermostat

will override current programming and keep the room

temperature at the selected temperature until the next

program period begins. Then the thermostat will automati-

cally revert to the program.

• HOLD TEMPERATURE — The thermostat can hold any

temperaturewithinitsrangeforanindefiniteperiod, without

revertingtotheprogrammedtemperature. PresstheHOLD

TEMP button. HOLD will be displayed. Then choose the

has been exhausted.

Displays currently programmed set temperature (this is

blank when SYSTEM button has been pressed to turn the

system OFF).

LK is displayed when keypad lockout has been activated.

OPERATING FEATURES

Now that you are familiar with the thermostat buttons and

display, read the following information to learn about the many

features of the thermostat.

desired hold temperature by pressing

. The ther-

mostat will hold the room temperature at the selected

setting until you press RUN PRGM button to start program

operation again.

• SIMULTANEOUS HEATING/COOLING PROGRAM

STORAGE—Whenprogramming,youcanenterbothyour

heating and cooling programs at the same time. There is no

need to reprogram the thermostat at the beginning of each

season.

• °F/°C CONVERTIBILITY — Press SET TIME and HOLD

TEMPbuttonsuntilthetemperaturedisplayisinCelsius.To

display Fahrenheit, repeat the process.

(Instructions continue on page 6.)

• TEMPERATURE DISPLAY ADJUSTMENT — Your new Usethetableatthebottomofthepagetoplanyourprogramtime

thermostathasbeenaccuratelysetinourfactory.However, periods,andthetemperaturesyouwantduringeachperiod.You

if you wish, you may adjust your new thermostat tempera- may also want to look at the sample program table to get an idea

ture display to match your old thermostat. This can be of how the thermostat can be programmed.

accomplished (within a ±4°F range) as follows:

1. Press VIEW PRGM and HOLD TEMP buttons at the

same time.

Entering Your Program

Follow these steps to enter the heating and cooling programs

you have selected.

2. Press

to adjust the displayed temperature to

your desired setting.

3. PressRUNPRGMtoresumenormalprogramoperation.

Set Current Time and Day

1. Press SET TIME button once. The display will show the hour

only.

PROGRAMMING YOUR THERMOSTAT

Now you are ready to program your thermostat. This section will

help you plan your thermostat’s program to meet your needs.

For maximum comfort and efficiency, keep the following guide-

lines in mind when planning your program.

EXAMPLE:

2. Press and hold either

until you reach the correct

• When heating (cooling) your building, program the tem-

peratures to be cooler (warmer) when the building is vacant

or during periods of low activity.

hour (the letter P should be displayed for PM time, which

begins at noon).

3. Press SET TIME once. The display window will show the

minutes only.

• During early morning hours, the need for cooling is usually

minimal.

Look at the factory preprogrammed times and temperatures

shown below. If this program will suit your needs, simply press the

RUN PRGM button to begin running the factory preset program.

EXAMPLE:

FACTORY PREPROGRAMMING

4. Press and hold either

minutes.

until you reach the correct

Cooling Program for

ALL Days of the Week:

Heating Program for

ALL days of the Week:

TEMP

PERIOD

TIME

TEMP

PERIOD

1st

2nd

3rd

4th

TIME

5. Press SET TIME once. The display will show the day of the

week.

70°F

62°F

70°F

62°F

1st

2nd

3rd

4th

6:00 AM

8:00 AM

5:00 PM

10:00 PM

6:00 AM

8:00 AM

5:00 PM

10:00 PM

78°F

85°F

78°F

82°F

6. Press

until you reach the current day of the week.

7. Press RUN PRGM once. The display will show the correct

time and room temperature alternately.

If you want to change the preprogrammed times and tempera-

tures, follow these steps.

Determine the time periods and heating and cooling tempera-

tures for your weekday and weekend programs. You must

program four periods for both the weekday and weekend pro-

gram. However, you may use the same heating and cooling

temperatures for consecutive time periods. You can choose

start times, heating temperatures, and cooling temperatures

independently for both weekday and weekend programs (for

example, you may select 5:00 AM and 70° as the weekday 1st

period heating start time and temperature, and also choose

7:00 AM and 76° as the weekday 1st period cooling start time

and temperature).

Enter Heating Program

1. If you want to change the display from Fahrenheit to Celsius

(or vice-versa), press SET TIME and HOLD TEMP at the

same time.

2. Press the SYSTEM button until HEAT is displayed.

3. Press VIEW PRGM once. “MO TU WE TH FR” (indicating

weekday program) will be displayed. Also displayed are

the currently programmed start time for the 1st heating

period and the currently programmed temperature

(flashing).

SAMPLE

Heating/Cooling Schedule Plan

WEEKEND (2 DAY)

WEEKDAY (5 DAY)

WEEKEND (2 DAY)

WEEKDAY (5 DAY)

Start

Time

Start

Time

Start

Time

Start

Time

Period

Temperature

Period

Temperature

1ST HEAT

5:30 AM

68°F

7:00 AM

11:00 AM

6:00 PM

11:30 PM

7:00 AM

12:30 PM

6:00 PM

11:30 PM

68°F

2ND HEAT

3RD HEAT

4TH HEAT

1ST COOL

2ND COOL

3RD COOL

4TH COOL

2ND HEAT 8:00 AM

3RD HEAT 5:00 PM

4TH HEAT 10:30 PM

1ST COOL 6:30 AM

2ND COOL 2:00 PM

3RD COOL 5:00 PM

4TH COOL 10:30 PM

65°F

70°F

65°F

76°F

78°F

72°F

78°F

70°F

65°F

76°F

74°F

72°F

78°F

MO TU WE TH FR

CHECK YOUR PROGRAMMING

EXAMPLE:

Follow these steps to check your thermostat programming one

final time before beginning thermostat operation.

This display window shows that for the 1st weekday period,

the start time is 6:00 AM, and 70° is the programmed

temperature(thisexamplereflectsfactorypreprogramming).

1. Press SYSTEM button until HEAT is displayed.

2. Press VIEW PRGM to view the 1st weekday heating period

time and temperature. Each time you press VIEW PRGM,

the next heating period time and temperature will be dis-

played in sequence for weekday, then weekend program

periods(youmaychangeanytimeortemperatureduringthis

procedure).

4. Press

to change the displayed temperature to your

selected temperature for the 1st heating program period.

5. Press SET TIME once (the programmed time will flash).

Press

untilyourselectedtimeisdisplayed. Thetime

3. Press RUN PRGM.

will change in 15 minute increments. When your selected

time is displayed, press SET TIME again to return to the

change temperature mode.

4. Press SYSTEM button until COOL is displayed.

5. Repeat step 2 to check cooling temperatures.

6. Press RUN PRGM to begin program operation.

6. Press VIEW PRGM once. The currently programmed start

time and setpoint temperature for the 2nd heating program

period will be displayed.

7. Press SYSTEM button to select HEAT, COOL, or AUTO

mode.

7. Repeat steps 4 and 5 to select the start time and heating

temperature for the 2nd heating program period.

YOUR THERMOSTAT IS NOW COMPLETELY PRO-

GRAMMED AND READY TO AUTOMATICALLY PROVIDE

MAXIMUM COMFORT AND EFFICIENCY!

8. Repeatsteps4through6forthe3rdand4thheatingprogram

periods. Weekday heating programs are now complete.

9. Press VIEW PRGM once. “SA SU” (indicating weekend

program) will be displayed, along with the start time for the

1st heating period and the currently programmed tempera-

ture.

TROUBLESHOOTING

If your thermostat’s display is frozen or displaying incorrectly,

the thermostat may have been affected by static discharge or

voltagevariations. Ifthishappens, presstheRESETbutton(see

fig. 2, page 2 for the location of the button). Pressing the RESET

buttonwillclearalluserprogramming. Thethermostatwillrevert

to factory preprogramming. You will need to reset the time and,

if desired, reprogram the thermostat to your selected program.

If pressing the RESET button does not correct the problem,

contact a qualified service technician.

10.Repeat steps 4 through 8 to complete weekend heating

programming.

11.When you have completed entering your heating program,

press RUN PRGM.

Enter Cooling Program

CAUTION

For optimum performance, we recommend replacing batteries

once a year with fresh “AA” Energizer^®alkaline batteries.

If the outside temperature is below 50°F, disconnect

power to the cooling system before programming.

Energizing the air conditioner compressor during

cold weather may cause personal injury or property

damage.

1. Press SYSTEM button until COOL is displayed.

2. Follow the procedure for entering your heating program,

using your selected cooling times and temperatures.

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