White Rodgers 1F80 240 Thermostat User Manual

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1F80-240

(for HEATING ONLY systems)

Programmable Electronic Digital Thermostat

INSTALLATION AND

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

• Heat program storage

• Backlit display

Your new White-Rodgers 5-Day/1-Day/1-Day Digital Thermo-

stat uses the technology of a solid-state microcomputer to

provide precise time/temperature control. This thermostat offers

you the flexibility to design a heating program that fits your needs.

• Temperature override until next program period

• Manual program override (HOLD temperature)

• Temporary HOLD

Features:

• °F/°C convertibility

• Separate 5-day (weekday), 1-day (Sat) and 1-day (Sun) pro-

gramming with four separate time/temperature periods per day

• Temperature range 45° to 90°F

• RH, W, and G terminals

• Preprogrammed temperature control

• LCD continuously displays set point, and alternately dis-

plays time and room temperature

• Battery powered

• 2 “AA” Energizer^® alkaline batteries included

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.

All wiring must conform to local and national electrical codes and

ordinances.

This control is a precision instrument, and should be handled

carefully. Rough handling or distorting components could cause

the control to malfunction.

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 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

• Heat pump systems

WHITE-RODGERS

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123-5398

www.white-rodgers.com

PART NO. 37-6325B

Printed in U.S.A.

0148

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

up the spilled mercury with sand or other absorbent material and

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

suitable container and return to White-Rodgers at 9797 Reavis

Road, St. Louis, MO, 63123-5398 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 fossil

fuel (gas, oil, etc.) and 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 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

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

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)

HEATING SYSTEMS

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

ATTACH THERMOSTAT BASE TO WALL

1. Remove the packing material from the thermostat. Gently second option in the configuration menu to SL (see CONFIGU-

pull the cover straight off the base. Forcing or prying on the RATION MENU, page 4).

thermostat will cause damage to the unit. If necessary, move

the electric heat switch (see ELECTRIC HEAT SYSTEMS,

above).

CHECK THERMOSTAT OPERATION

If at any time during testing your system does not operate

2. Connect wires beneath terminal screws on base using

properly, contact a qualified service person.

appropriate wiring schematic (see figs. 2 through 5).

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.

THERMOSTAT

SYSTEM

Heating

System

Hot

24 VAC

120 VAC

Neutral

TRANSFORMER

Figure 2. Typical wiring diagram for

heating only, 2-wire, single transformer systems

THERMOSTAT

SYSTEM

Heating

System

M.V. or 12 V. D.C.

TRANSFORMER

Figure 3. Typical wiring diagram for

heating only, 2-wire, single transformer systems

Thermostat

3-wire Series 10

Primary Control

(located at furnace)

Furnace

Add jumper wire

(not provided with thermostat)

Figure 4.Typical wiring diagram for

3-wire SERIES 10 heating systems

THERMOSTAT

SYSTEM

Fan

Relay

Heating

System

Hot

24 VAC

120 VAC

Neutral

TRANSFORMER

Figure 5. Typical wiring diagram for

heat only, 3-wire, single transformer systems

Heating System

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

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

2. Press

to adjust thermostat setting above room tempera-

ture. The heating system should begin to operate.

3. Press

to adjust temperature setting below room tem-

perature. The heating 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).

SYSTEM switch (OFF, HEAT).

The Display

Indicates day of the week.

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

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

the HEAT position.

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.

Example:

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

time period.

Alternately displays current time and temperature. Dis-

plays LO in the minutes field when batteries are low.

2. With the thermostat set to Heat, press HOLD for ap-

proximately five seconds until HOLD time (3:00 indi-

cating 3 hours) appears as a setting reminder.

The word HOLD is displayed when the thermostat is in the

HOLD mode. HOLD is displayed flashing when the thermo-

stat is in a temporary HOLD Mode.

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

Displays currently programmed set temperature (this is

blank when SYSTEM switch is in the OFF position).

blink.

4. Use

to set the temperature to your prefer-

Displays FLTR when the system has run for the pro-

grammed filter time period as a reminder to change or clean

your air filter.

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.

CONFIGURATION MENU

The configuration menu allows you to set certain thermostat

operating characteristics to your system or personal require-

ments.

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.

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.

The configuration menu table summarizes the configuration

options. An explanation of each option follows.

3) Select Display Light ON or OFF - The display backlight

improves display contrast in low lighting conditions. Select-

ing d-l ON will keep the light on for a short period of time

after any key is pressed. Selecting d-l OFF will keep the

light off.

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

go backwards to the previous item in the menu. To exit the menu

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

HOLD

(FA)

d-L

(ON)

OFF

Select display backlight OFF or ON

HOLD

(ON)

Select Energy Management Recovery OFF or ON

Filter

(000)

0 to 1950 hours

(in 50 hour increments)

HOLD

Select filter replacement run time

LOC

(OFF)

Compressor lockout feature not applicable to this model

Select temperature display adjustment higher or lower

0 HI

(0)

4 LO to

4 HI

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

4) Select Energy Management Recovery OFF or ON -

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.

Energy Management Recovery (EMR) causes the thermo-

stat to start heating early to make the building temperature

reach the program setpoint at the time you specify. Heating

will start 5 minutes early for every 1° of temperature

required to reach setpoint.

• TEMPERATURE OVERRIDE — Press

until the

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.

Example: You select EMR and have your heating pro-

grammed to 65° at night and 70° at 7 AM. If the building

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.

• HOLD TEMPERATURE (BYPASSING THE PROGRAM)

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 the desired temperature by

5) Select filter replacement run time - The thermostat will

display FLTR after a set time of operation. This is a

reminder to change or clean your air filter. This time can be

set from 0 to 1950 hours in 50 hour increments. A selection

of 000 will cancel this feature. When FLTR is displayed,

you can clear it by pressing HOLD and RUN at the same

time. This resets the timer and starts counting the hours

until the next filter change. Changing the time in the menu

also resets the timer.

pressing

. The thermostat will hold the room

temperature at the selected setting until you press RUN

button to start program operation again.

• CONFIGURATION MENU — Allows you to customize

certain thermostat options.

6) Compressor Lockout - Feature not applicaple to this

model.

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.

7) 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.

• When heating your building, program the temperatures to

be cooler when the building is vacant or during periods of

low activity.

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

Centigrade or Fahrenheit as required.

Enter Heating Program

Planning Your Program

1. Move the SYSTEM switch to HEAT.

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.

2. Press PRGM once. “MO TU WE TH FR” (indicating weekday

program) will appear in the display. Also displayed are the

currently programmed start time for the 1st heating period

and the currently programmed temperature (flashing).

If you want to change the preprogrammed times and tempera-

tures, follow these steps.

MO TU WE TH FR

EXAMPLE:

Determine the time periods and temperatures for your weekday

and weekend programs. You must program four periods for

both the weekday and weekend program. However, you may

use the same heating temperatures for consecutive time peri-

ods. You can choose start times and heating 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.

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

start time is 6:00 AM, and 68° is the programmed tempera-

ture (this example reflects factory preprogramming).

3. Press

to change the displayed temperature to

your selected temperature for the 1st heating program

period.

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.

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

until your selected time appears. The time will

change in 15 minute increments. When your selected time

is displayed, press TIME again to return to the change

temperature mode.

Entering Your Program

Follow these steps to enter the heating program you have

selected.

5. Press PRGM once. The currently programmed start time

and setpoint temperature for the 2nd heating program

period will appear.

Set Current Time and Day

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

temperature for the 2nd heating program period.

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

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

program periods. Weekday heating programs are now com-

plete.

EXAMPLE:

8. Press PRGM once. “SA” (indicating Saturday program) will

appear in the display, along with the start time for the 1st

heating period and the currently programmed temperature.

2. Press and hold either

until you reach the correct

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

begins at noon).

9. Repeat steps 3 through 7 to complete Saturday heating

programming.

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

only.

8. Press PRGM once. “SU” (indicating Sunday program) will

appear in the display. Repeat steps 3 through 7 to complete

Saturday heating programming.

EXAMPLE:

10.When you have completed entering your heating program,

press RUN.

4. Press and hold either

minutes.

until you reach the correct

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

6. Press or until you reach the current day of the week.

CHECK YOUR PROGRAMMING

Follow these steps to check your thermostat programming one

final time before beginning thermostat operation.

7. Press RUN once. The display will show the correct time and

room temperature alternately.

1. Move SYSTEM switch to HEAT position.

SAMPLE

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

and temperature. Each time you press PRGM, the next

heating period time and temperature will be displayed in

sequence for weekday, then weekend program periods (you

may change any time or temperature during this procedure).

Heating Schedule Plan (Factory Program)

WEEKDAY (5 DAY)

SATURDAY (1 DAY)

SUNDAY (1 DAY)

Start

Time

Start

Period

Temperature

70 F

Time

Temperature

70 F

Time

Temperature

70 F

6:00 AM

8:00 AM

5:00 PM

10:00 PM

1ST

6:00 AM

8:00 AM

5:00 PM

10:00 PM

3. Press RUN to begin program operation.

YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND

READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!

62 F

2ND 8:00 AM

3RD 5:00 PM

4TH 10:00 PM

62 F

70 F

62 F

Heating Schedule Plan

WEEKDAY (5 DAY)

SATURDAY (1 DAY)

SUNDAY (1 DAY)

Start

Period

1ST

Time

Temperature

Time

Temperature

Time

Temperature

2ND

3RD

4TH

TROUBLESHOOTING

Symptom

Possible Cause

Corrective Action

No Heat/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.

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.

Heat 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 as described below.

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.

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.

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 below.

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 below.

Reset Operation

Batteries

If a voltage spike or static discharge blanks out the display or For optimum performance, we recommend replacing batteries

causes erratic thermostat operation you can reset the thermo- once a year with fresh "AA" Energizer^® alkaline batteries.

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.

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

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