White Rodgers 1F80 224 Thermostat User Manual

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1F80-224

Programmable Electronic Digital Thermostat

INSTALLATION AND

OPERATIONINSTRUCTIONS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY

BEFOREINSTALLINGOROPERATINGTHISCONTROLCOULDCAUSE

PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

• Temperature override until next program period

• Manual program override (HOLD temperature)

• Temporary HOLD

Your new White-Rodgers 24-Hour Digital Thermostat uses the

technology of a solid-state microcomputer to provide precise

time/temperature control. This thermostat offers you the flexibil-

ity to design heating and cooling programs that fit your needs.

• °F/°C convertibility

Features:

• Temperature range 45° to 90°F

• RC, RH, W, Y, G , O and B terminals

• Simultaneous heat and cool program storage

• Preprogrammed temperature control

• Four separate time/temperature settings

• B and O terminals for single stage heat pumps (no auxiliary

heat) or damper operation

• Program storage in case of power loss

• 2 “AA” Energizer^®alkaline batteries included

• LCD continuously displays setpoint, and alternately

displays time and room temperature

PRECAUTIONS

This thermostat is intended for use with a low voltage system; do

not use this thermostat with a 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.

! WARNING

▲

Do not use on circuits exceeding specified voltage.

Higher voltage will damage control and could cause

shock or fire hazard.

Do not exceed the specification ratings.

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.

Allwiringmustconformtolocalandnationalelectricalcodesand

ordinances.

This control is a precision instrument, and should be handled

carefully. Rough handling or distorting components could cause

the control to malfunction.

Thermostat installation and all components of the

system shall conform to Class II circuits per the NEC

code.

! 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.

SPECIFICATIONS

ELECTRICAL DATA

APPLICATIONS

Electrical Rating:

For use with:

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

0.05 to 1.0 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

• Single-stage heat pump systems (no auxiliary heat)

• Millivolt 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:

-4°F to 150°F

DO NOT USE WITH:

• Multi-stage systems

• Systems exceeding 30 VAC and 1.5 amps

• 3-wire zoned hydronic heating systems

WHITE-RODGERS

PART NO. 37-6350C

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

Printed in U.S.A.

Replaces 37-6350B

0326

ST. LOUIS, MISSOURI 63123-5398

www.white-rodgers.com

INSTALLATION

REMOVE OLD THERMOSTAT

Screw anchors

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

thermostat has a wall mounting plate, remove the thermo-

stat and the wall mounting plate as an assembly.

3. Identify each wire attached to the old thermostat using

the labels enclosed with the new thermostat.

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

NOT LET WIRES FALL BACK INTO THE WALL.

5. Install new thermostat using the following procedures.

Mounting

holes

ATTENTION!

Electric/Gas

switch

This product does not contain mercury. However, this product

may replace a unit which contains mercury.

Mounting

holes

Do not open mercury cells. If a cell becomes damaged, do not

touch any spilled mercury. Wearing nonabsorbent gloves, take

upthespilledmercurywithsandorotherabsorbentmaterialand

place into a container which can be sealed. If a cell becomes

damaged, the unit should be discarded.

Figure 1. Thermostat Base

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

material (such as fiberglass insulation) to prevent drafts

from affecting thermostat operation.

Mercury must not be discarded in household trash. When the

unit this product is replacing is to be discarded, place in a

suitablecontainerandreturntoWhite-Rodgersat2895Harrison

Street, Batesville, AR 72501-2117 for proper disposal.

BATTERY LOCATION

ELECTRIC HEAT OR SINGLE-STAGE

HEAT PUMP SYSTEMS

2 "AA" alkaline batteries are included in the thermostat at the

factory with a battery tag to prevent power drainage. You must

remove the battery tag to engage the batteries.

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. 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 ener-

gize the fan immediately on a call for heat. If you are unsure if

the heating/cooling system requires the thermostat to control

the fan, contact a qualified heating and air conditioning service

person.

If BATT is displayed, the batteries are low and should be

replaced with fresh "AA" Energizer^®alkaline batteries. To

replace batteries, install the batteries along the top of the base

(see Fig. 1). The batteries must be installed with the positive (+)

end to the left.

HYDRONIC (HOT WATER OR STEAM)

HEATINGSYSTEMS

This thermostat is set to operate properly with a forced-air

heating system. If you have a hydronic heating system (a

system that heats with hot water or steam), you must set the

thermostat to operate properly with your system. Change the

second option in the configuration menu to SL (see CONFIGU-

ATTACH THERMOSTAT BASE TO WALL

1. Remove the packing material from the thermostat. Gently RATION MENU, page 4).

pull the cover straight off the base. Forcing or prying on the

thermostatwillcausedamagetotheunit. Ifnecessary, move

the electric heat switch (see ELECTRIC HEAT SYSTEMS,

above).

CHECKTHERMOSTATOPERATION

If at any time during testing your system does not operate

properly, contact a qualified service person.

2. Connect wires beneath terminal screws on base using

appropriate wiring schematic (see figs. 2 through 7).

Turn on power to the system.

3. Place base over hole in wall and mark mounting hole

locations on wall using base as a template.

Fan Operation

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

If your system does not have a G terminal connection, skip to

Heating System.

5. Fasten base loosely to wall, as shown in fig. 1, using two

mounting screws. Place a level against bottom of base,

adjust until level, and then tighten screws. (Leveling is for

appearance only and will not affect thermostat operation.) If

you are using existing mounting holes, or if holes drilled are

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

plastic screw anchors to secure subbase.

1. Move fan to ON position. The blower should begin to

operate.

2. Move fan switch to AUTO position. The blower should

stop immediately.

JUMPER

WIRE

THERMOSTAT

SYSTEM

Hot

THERMOSTAT

SYSTEM

Cooling

System Relay System

Fan

Heating

24 VAC

120 VAC

Neutral

Fan

Relay

Heating

System

Hot

HEATING

TRANSFORMER

24 VAC

120 VAC

Neutral

NOTE

For 2-wire Heat only,

attach to RH and W

Hot

TRANSFORMER

24 VAC

120 VAC

Neutral

Figure 2. Typical wiring diagram for

heat only, 3-wire, single transformer systems

COOLING TRANSFORMER

Figure 5. Typical wiring diagram for

heat/cool, 5-wire, two-transformer systems

JUMPER

WIRE

THERMOSTAT

SYSTEM

JUMPER

WIRE

JUMPER

WIRE

THERMOSTAT

SYSTEM

Cooling

System Relay

Fan

RC RH

Hot

24 VAC

120 VAC

Neutral

Reversing Compressor Fan

Valve*

Contactor Relay

Hot

TRANSFORMER

24 VAC

120 VAC

Neutral

Figure 3. Typical wiring diagram for

cool only, 3-wire, single transformer systems

* Reversing valve is energized when the

system switch is in the COOL position

TRANSFORMER

Figure 6. Typical wiring diagram for heat pump

with reversing valve energized in COOL

NOTE

RED jumper wire (provided with thermostat) must be

connected between thermostat RH and RC terminals

for proper thermostat operation with this system.

JUMPER

WIRE

JUMPER

WIRE

JUMPER

WIRE

THERMOSTAT

RC RH

THERMOSTAT

SYSTEM

RC RH

Cooling

System Relay

Fan

Heating

System

Reversing Compressor Fan

Valve*

Contactor Relay

Hot

24 VAC

120 VAC

24 VAC

120 VAC

Neutral

* Reversing valve is energized when the

system switch is in the HEAT position

Neutral

TRANSFORMER

Figure 7. Typical wiring diagram for heat pump

with reversing valve energized in HEAT

Figure 4. Typical wiring diagram for

heat/cool, 4-wire, single transformer systems

Cooling System

Heating System

! CAUTION

▲

To prevent compressor and/or property damage, if the

outdoor temperature is below 50°F, DO NOT operate

the cooling system.

1. Move SYSTEM switch to HEAT position. If the heating

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

2. Press

toadjustthermostatsettingaboveroomtempera-

ture. The heating system should begin to operate.

1. Move SYSTEM switch to COOL position.

3. Press

to adjust temperature setting below room tem-

2. Press

toadjustthermostatsettingbelowroomtempera-

perature. The heating system should stop operating.

ture. The blower should come on immediately on high

speed, 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

familiar with its features and with the display and the location

and operation of the thermostat buttons. Your thermostat con-

sists of two parts: the thermostat cover and the base. To

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

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

cover snaps onto the base.

The Thermostat Buttons and Switches

Raises temperature setting.

Lowers temperature setting.

TIME button.

PRGM (program) button.

RUN (run program) button.

HOLD temperature button.

FAN switch (ON, AUTO).

SYSTEMswitch(COOL, OFF,HEAT).

1) Select Temporary Hold Time - The thermostat can hold

any temperature you set it to for the amount of time you

select on this option. Your choices are 0:00 to 8:00 hours in

15 minute increments. 0:00 disables the function

The Display

Flame icon ( ) is displayed when the SYSTEM switch is in

the HEAT position. Snowflake icon ( )is displayed (non-

flashing)whentheSYSTEMswitchisintheCOOLposition.

Snowflake is displayed (flashing) if the thermostat is in

lockout mode to prevent the compressor from cycling too

quickly.

Example:

1. You have selected 3:00 hours for the Temporary Hold

time period.

2. With the thermostat set to Heat or Cool, press HOLD for

approximately five seconds until HOLD time (3:00

indicating 3 hours) appears as a setting reminder.

Displays BATT when the 2 "AA" batteries are low and

should be replaced. Only BATT and LO in the minutes field

are displayed when batteries are low with no system

power.

3. After releasing the button, HOLD on the display will

blink.

Alternately displays current time and temperature. Dis-

plays LO in the minutes field when batteries are low.

4. Use

to set the temperature to your prefer-

ence. The thermostat will maintain this temperature

setting for 3 hours with HOLD blinking to remind you it is

in Temporary Hold. After 3 hours the thermostat will go

back to the program temperature and HOLD will no

longer blink or display.

The word HOLD is displayed when the thermostat is in the

HOLDmode. HOLDisdisplayedflashingwhenthethermo-

stat is in a temporary HOLD Mode.

Displays currently programmed set temperature (this is

blank when SYSTEM switch is in the OFF position).

2) Select FA or SL (Fast or Slow) Heating Cycle Rate - The

FA setting is frequently used for gas, oil or electric heat. The

SL setting produces a longer heating cycle which is nor-

mally for hot water or steam (hydronic) systems. Both

settings produce very accurate temperature control and

can be set to your personal preference. FA cycles the

system just under 1°F and the SL setting cycles at approxi-

mately 1.5°F.

CONFIGURATIONMENU

The configuration menu allows you to set certain thermostat

operating characteristics to your system or personal require-

ments.

Press RUN to make sure the thermostat is in the run program

mode, then press PRGM and RUN at the same time to enter the

configuration menu. The display will show the first item in the

configuration menu.

3) Select backlit display - The display backlight improves

display contrast in low lighting conditions. Selecting back-

light ON will keep the light on for a short period of time after

any key is pressed. Selecting OFF will keep the light off.

The configuration menu table summarizes the configuration

options. An explanation of each option follows.

4) Select Compressor Lockout LOC OFF or ON - Selecting

LOC ON will cause the thermostat to wait 5 minutes before

turning on the compressor if the heating and cooling sys-

tem loses power. It will also wait 5 minutes minimum

between cooling cycles. This is intended to help protect the

compressor from short cycling. Some newer compressors

already have a time delay built in and do not require this

feature. Your compressor manufacturer can tell you if the

feature is already present in their system. When the

compressor time delay occurs it will flash the (snowflake

icon) for about five minutes then turn on the compressor.

Press HOLD to change to the next menu item or press TIME to

gobackwardstothepreviousiteminthemenu. Toexitthemenu

and return to the program operation, press RUN. If no keys are

pressed within fifteen minutes, the thermostat will revert to

normal operation.

Configuration Menu

Step

Press Button(s)

Displayed (Factory Default) Press

to select:

COMMENTS

Select temporary Hold time

HOLD

(0:00)

0 to 8 hrs (in

PRGM

and RUN

15 minute increments)

Select FA or SL (Fast or Slow) heating cycle rate

Select display backlight OFF or ON

HOLD

(FA)

d-L

(ON)

OFF

HOLD

LOC

(OFF)

HOLD

Select compressor lockout OFF or ON

Select temperature display adjustment higher or lower

0 HI

(0)

4 LO to

4 HI

HOLD

Select temperature display to F or C

Returns to normal operation

(F)

HOLD

RUN

* Press HOLD to advance to next item or TIME to move backwards to previous item

• CONFIGURATION MENU — Allows you to customize

certain thermostat options.

Select Temperature Display Adjustment 4 LO to 4 HI -

Allows you to adjust the room temperature display 4° higher

or lower. Your thermostat was accurately calibrated at the

factory but you have the option to change the display

temperature to match your previous thermostat.

PROGRAMMING YOUR THERMOSTAT

This section will help you plan your thermostat’s program to

meet your needs. For maximum comfort and efficiency, keep

the following guidelines in mind when planning your program.

6) Select F° or C° Readout - Changes the display readout to

Centigrade or Fahrenheit as required.

• When heating (cooling) your building, program 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.

OPERATINGFEATURES

Now that you are familiar with the thermostat buttons and

display, read the following information to learn about the many

features of the thermostat.

• SIMULTANEOUS HEATING/COOLING PROGRAM

STORAGE — When programming, you can enter both

your heating and cooling programs at the same time. There

is no need to reprogram the thermostat at the beginning of

each season.

Planning Your Program

Look at the factory preprogrammed times and temperatures

shown in the sample schedule. If this program will suit your

needs, simply press the RUN button to begin running the factory

preset program.

• TEMPERATURE OVERRIDE—Press

untilthe

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.

If you want to change the preprogrammed times and tempera-

tures, follow these steps.

Determine the time periods and temperatures for your program.

You must program four time periods. However, you may use the

same heating and cooling temperatures for consecutive time

periods.

• HOLD TEMPERATURE — The thermostat can hold any

temperature within its range for an indefinite period without

reverting to the programmed temperature. Momentarily

press HOLD button. HOLD will be displayed. Then choose Use the following table to plan your program time periods and

the temperatures you want during each period. Fill in the

complete table to have a record of your programs.

the desired temperature by pressing

. The

thermostat will hold the room temperature at the selected

setting until you press RUN button to start program opera-

tion again.

SAMPLE

Heating/Cooling Schedule Plan

Heating/Cooling Schedule Plan (Factory Program)

Start

Time

Start

Time

Period

Temperature

Period

Temperature

70˚F

1ST HEAT

6:00 AM

2ND HEAT

3RD HEAT

4TH HEAT

1ST COOL

2ND COOL

3RD COOL

4TH COOL

2ND HEAT

3RD HEAT

4TH HEAT

1ST COOL

2ND COOL

3RD COOL

4TH COOL

8:00 AM

5:00 PM

10:00 PM

6:00 AM

8:00 AM

5:00 PM

10:00 PM

62˚F

70˚F

62˚F

78˚F

85˚F

78˚F

82˚F

Enter Cooling Program

Entering Your Program

Follow these steps to enter the heating and cooling programs

you have selected.

▲

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.

Set Current Time

1. PressTIMEbuttononce. Thedisplaywillshowthehouronly.

EXAMPLE:

1. Move SYSTEM switch to COOL position.

2. Follow the procedure for entering your cooling program,

using your selected cooling times and temperatures.

2. Press and hold either

until you reach the correct

hour and AM/PM designation (AM begins at midnight; PM

begins at noon).

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

only.

CHECKYOURPROGRAMMING

Follow these steps to check your thermostat programming one

final time before beginning thermostat operation.

EXAMPLE:

1. Move SYSTEM switch to HEAT position.

4. Press and hold either

minutes.

until you reach the correct

2. Press PRGM to view the 1st heating period time and

temperature. Each time you press PRGM, the next heating

period time and temperature will be displayed in sequence

(you may change any time or temperature during this proce-

dure).

Enter Heating Program

1. Move the SYSTEM switch to HEAT.

2. PressPRGMonce. Displayedarethecurrentlyprogrammed

start time for the 1st heating period and the currently

programmed temperature (flashing).

3. Press RUN.

4. Move SYSTEM switch to COOL position.

5. Repeat step 2 to check cooling program.

6. Move SYSTEM switch to HEAT or COOL and press RUN to

begin program operation.

EXAMPLE:

YOURTHERMOSTATISNOWCOMPLETELYPROGRAMMEDAND

READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!

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

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

temperature(thisexamplereflectsfactorypreprogramming).

3. Press

to change the displayed temperature to

TROUBLESHOOTING

your selected temperature for the 1st heating program

period.

Reset Operation

If a voltage spike or static discharge blanks out the display or

4. Press TIME once (the programmed time will flash). Press

until your selected time appears. The time will causes erratic thermostat operation you can reset the thermo-

change in 15 minute increments. When your selected time

is displayed, press TIME again to return to the change

temperature mode.

stat by pressing

and TIME at the same time. This also

resets the factory defaults to the configuration menu and

program. If the thermostat has power, has been reset and still

does not function correctly contact your heating/cooling ser-

vice person or place of purchase.

5. Press PRGM once. The currently programmed start time

and setpoint temperature for the 2nd heating program

period will appear.

Batteries

6. Repeat steps 3 and 4 to select the start time and heating

temperature for the 2nd heating program period.

For optimum performance, we recommend replacing batteries

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

7. Repeat steps 3 through 5 for the 2nd, 3rd and 4th heating

program periods. Programming is now complete.

For Troubleshooting information, see next page

8. When you have completed entering your program, press

RUN.

TROUBLESHOOTING

Symptom

Cause

NoHeat/NoCool/NoFan

(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.

1. Pilot light not lit.

Replace fuse or reset breaker.

Turn switch to ON.

Replace door panel in proper position to engage

safety interlock or door switch.

Re-light pilot.

No Heat

2. System Switch not set to Heat.

Set System Switch to Heat and raise setpoint

above room temperature.

3. Loose connection to thermostat or system.

Verify thermostat and system wires are securely

attached.

4. Furnace Lock-Out Condition. Heat may also

be intermittent.

Many furnaces have safety devices that shut the

system down when a lock-out condition occurs.

If the heat works intermittently contact the furnace

manufacturer or local service person for assistance.

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

service person to verify the heating system is

operating correctly.

5. Heating System requires service or

thermostat requires replacement.

No Cool

1. System Switch not set to Cool.

Set System Switch to Cool and lower setpoint

below room temperature.

2. Loose connection to thermostat or system.

Verify thermostat and system wires are securely

attached.

3. Cooling System requires service or thermostat

requires replacement.

Same procedure 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 if the compressor

lock-out option is selected in the configuration

menu (Item 6).

Heat, Cool or Fan Runs Constantly.

1. Possible short in wiring.

Check each wire connection to verify they are

not shorted or touching together. No bare wire

should stick out from under terminal screws.

Try resetting the thermostat. 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.

2. Possible short in thermostat.

3. Possible short in Heat/Cool/Fan system.

4. Fan Switch set to Fan On.

Furnace 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.

Item 2 in the Configuration Menu is the adjustment

that controls the cycle rate. If an acceptable cycle

rate is not achieved using the FA (Fast) or SL

(Slow) adjustment contact a local service person for

additional suggestions.

Cooling Cycles Too Fast or Too Slow

(narrow or wide temperature swing)

1. The location of the thermostat and/or the size

of the Cooling System may be influencing the

cycle rate.

The cycle rate for cooling is fixed and can not be

adjusted. Contact a local service person for

suggestions.

Thermostat Setting and Thermometer

Disagree

1. Thermostat thermometer setting requires

adjustment.

The thermometer can be adjusted +/- 4 degrees as

listed in item 7 of the Configuration Menu. No other

adjustment is possible.

Clock Loses or Gains Time

1. Loss of power to thermostat and low batteries.

The thermostat will maintain its program in memory

even with no power/no batteries but the clock time

will be incorrect when power is restored. See No

Heat/No Cool/No Fan (common problems) above

for items to check in the system.

Heat or Cool Starts Early

1. EMR activated

See Configuration Menu (Item 4).

Thermostat Does Not Follow Program

1. AM or PM set incorrectly in program.

2. AM or PM set incorrectly on the clock.

3. Voltage spike or static discharge.

Check current clock and program settings including

the AM or PM designations for each time period.

If a voltage spike or static discharge occurs use the

Reset Operation listed above.

Blank Display and/or Keypad Not

Responding

1. Loss of power and dead batteries.

2. Voltage Spike or Static Discharge.

Replace batteries and check heat/cool system for

proper operation. If a voltage spike or static discharge

occurs use the Reset Operation listed above.

For additional product information, visit www.white-rodgers.com

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