Honeywell T8024F Thermostat User Manual

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T8001F, T8024F Flush Mount

Programmable Thermostat

OWNER’S GUIDE

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Welcome to the world of comfort and energy

savings with your new Honeywell programmable

thermostat.

Features

•

Program up to four time periods with

temperature settings to complement

your lifestyle.

Your new programmable thermostat is designed

to provide you with reliable, precise temperature

control. When you follow the simple program-

ming instructions in this manual, your thermostat

automatically controls the temperature in your

home, saving energy and allowing you to awake

•

Set different schedules for weekdays

and weekend.

Programs permanently held in nonvola-

tile memory in event of power failure.

Indefinite temperature hold.

•

(or return home) to a comfortable level of heating

Preprogrammed for your convenience.

or air conditioning.

Direct questions concerning the operation of this

thermostat to Honeywell Customer Assistance at

-800-468-1502, Monday-Friday, 7:00 a.m.-

5:30 p.m., Central time.

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Contents

Features .......................................................................................................................................... 2

Key Locations and Descriptions ...................................................................................................... 4

Planning Program Schedule ........................................................................................................... 5

Program Schedule...................................................................................................................... 6

Programming Thermostat ............................................................................................................... 7

Setting Current Time and Day .................................................................................................... 8

Setting Weekday Program .......................................................................................................... 9

Setting Weekend Program ......................................................................................................... 10

Setting Temporary Temperature Hold ......................................................................................... 13

Setting Indefinite Temperature Hold ........................................................................................... 13

Operating Thermostat ..................................................................................................................... 13

Setting SYSTEM and FAN Switches .......................................................................................... 13

Minimum Off-Timing ........................................................................................................................ 14

Troubleshooting ............................................................................................................................... 15

Warranty.......................................................................................................................................... 18

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Key Locations and Descriptions

HOLD KEY

•

SET TEMPORARY TEMPERATURE HOLD.

INCREASE KEY

•

PROGRAM TIME AND TEMPERATURE.

SET TEMPORARY TEMPERATURE HOLD.

Hold

Select

TUE

SELECT KEY

•

CURRENT SETPOINT.

FAN

SWITCH

• CHANGE DAY AND TIME.

• PROGRAM SELECTIONS.

Fan

Auto On

System

Cool Off

Heat

SYSTEM SWITCH

DECREASE

KEY

•

PROGRAM TIME AND TEMPERATURE.

SET TEMPORARY TEMPERATURE HOLD.

M18613

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Table 1. Preprogrammed Time

and Temperature Settings.

Planning Program Schedule

The thermostat display shows day, time,

program period, and temperature.

Heat

Setpoint

Cool

Setpoint

Period

Time

Wake

6:00 AM

70°F

21°C)

78°F

(26°C)

The thermostat can be set for four time

periods per day for weekdays and weekend.

(

Leave 8:00 AM

Return 6:00 PM

Sleep 10:00PM

62°F

17°C)

85°F

(29°C)

(

Before programming the thermostat, you can

use the program schedule to plan your

program.

70°F

(21°C)

78°F

(26°C)

62°F

17°C)

82°F

(28°C)

Fill in the weekday and weekend times and

temperatures you desire. If you decide not to

program the thermostat, it uses the

preprogrammed time and temperature settings

in Table 1.

(

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Program Schedule

Weekday

Start Time

Heating Temperature

Cooling Temperature

Wake

Leave

Return

Sleep

________

Weekend

Start Time

Heating Temperature

Cooling Temperature

Wake

Leave

Return

Sleep

________

Wake and Return start times should include extra lead time, based on outside temperature and

equipment response time, to give your equipment a head start to heat or cool the house. The

temperatures cannot be set any higher than 99°F (37°C) or any lower than 40°F (4°C).

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time, to give the equipment a head start to

heat or cool the house before you get up.

Programming Thermostat

(

This will be a higher temperature during

heating season, and a lower temperature

during cooling season.)

The thermostat is flexible and can be program-

med for different schedules for weekdays and the

weekend to meet your lifestyle needs.

Leave is the time period you can set for an

energy-saving temperature while you are

away at work or school. (This will be a

lower temperature during heating season,

and a higher temperature during cooling

season.)

Use the personal Program Schedule for planning

your time and temperature settings for various

times of the day.

Four time periods are available during weekdays

and the weekend—Wake, Leave, Return, and

Sleep.

Return is the time the thermostat turns on the

heating/cooling equipment after an energy

saving period. When deciding what time to

set for your Return period, include extra

lead time, depending on the outside temp-

erature and your equipment response time,

to give the equipment a head start to heat

or cool the house before you arrive home.

Wake is the time the thermostat turns on the

heating/cooling equipment after an energy

saving period. When deciding what time to

set for your Wake period, include extra

lead time, depending on the outside temp-

erature and your equipment response

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Sleep is the time period you can set for an

energy-saving temperature while you are

sleeping. (For more comfortable sleep-

ing, some people choose not to raise the

cool temperature during the night.)

While setting the current time, the word SET is

displayed.

2. To set day of week, press Select again.

Press ▲ or ▲

SET

to set current

day.

IMPORTANT

Always press the keys with your

fingertip or similar blunt tool. Sharp

instruments like pens and pencil

points can damage the keyboard.

M18534

To use the preprogrammed time and tempera-

ture (see Table 1), press Hold to exit the

programming mode.

Setting Current Time and Day

. To set current time, press Select twice.

Press ▲ or ▲

to set current

SET

time.

M12591A

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. Leave

Setting Weekday Program

a. Press Select. Press ▲ or ▲ to set

Slide the SYSTEM switch to the position, Heat

or Cool, you want to program. A flame (heat-

Leave

time.

SET

ing) or a snowflake

(cooling) appears in the

right side of the display, when setting the

program temperature.

M18566

. Wake

b. Press Select. Press ▲ or ▲ to set

a. Press Select. Press ▲ or ▲ to set

Leave

SET

Wake

time.

SET

temp-

erature.

M12627B

M18570

5. Return

b. Press Select. Press ▲ or ▲ to set

a. Press Select. Press ▲ or ▲ to set

Wake

SET

Return

time.

SET

temp-

erature.

M12625C

M18567

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b. Press Select. Press ▲ or ▲ to set

Setting Weekend Program

. Wake

a. Press Select. Press ▲ or ▲ to set

Return

temp-

SET

erature.

Wake

time.

SET

M12629B

6. Sleep

a. Press Select. Press ▲ or ▲ to set

M18569

Sleep

time.

SET

b. Press Select. Press ▲ or ▲ to set

Wake

SET

temp-

M18568

erature.

b. Press Select. Press ▲ or ▲ to set

M12633C

Sleep

SET

temp-

erature.

M12631C

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. Leave

b. Press Select. Press ▲ or ▲ to set

a. Press Select. Press ▲ or ▲ to set

Return

SET

Leave

time.

SET

temp-

erature.

M12637B

10. Sleep

M18550

a. Press Select. Press ▲ or ▲ to set

b. Press Select. Press ▲ or ▲ to set

Sleep

time.

SET

Leave

SET

temp-

erature.

M18554

M12635B

. Return

b. Press Select. Press ▲ or ▲ to set

Sleep

a. Press Select. Press ▲ or ▲ to set

SET

Return

time.

SET

temp-

erature.

M12639C

M18552

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1. Press Select. End is displayed. Program-

Setting Indefinite Temperature Hold

The Hold key allows you to indefinitely hold a

temperature. When Hold is active, the letters

Hld are displayed continuously. Hold can be

canceled by pressing the Hold key again.

ming is complete. The thermostat reverts

to displaying

SET

the current

day time and

temperature in

five seconds.

1. Press Hold

M18556

Setting Temporary Temperature Hold

. Press ▲ or ▲ key to set indefinite

temperature

setting.

. Press ▲ or ▲ key to set a temporary

temperature

TEMPORARY

setting.

WED

M12641A

M12640A

NOTE: The temporary temperature setting

remains in effect until the next program

period. To cancel, press Hold twice.

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Operating Thermostat

FAN settings:

Auto: Fan operates with equipment.

On: Fan operates continuously.

Setting SYSTEM and FAN Switches

Use the SYSTEM and FAN switches to control

thermostat operation.

Slide the FAN switch in the lower left corner of

the thermostat to select the desired fan setting.

SYSTEM settings:

Cool: The thermostat controls the cooling.

Off: Both the heating and cooling are off.

Heat: The thermostat controls the heating.

Heat and Cool Indicators:

Indicates a call for heat.

Indicates a call for cool.

Slide the SYSTEM switch in the lower right

corner of the thermostat to select the desired

system setting.

NOTE: In the programming mode, the

and

indicate system setting.

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Minimum Off-Timing

The thermostat minimum off-timer assures that

the compressor does not come on again for at

least five minutes after it turns off. The minimum

off-timer is triggered when the compressor turns

off and when the SYSTEM switch position is

changed. If the compressor turns off when the

setpoint is changed, the minimum off-timer is

triggered. Power interruption and power

restoration also trigger the minimum off-timer.

The minimum off-timer operates in cooling on

the T8001F and T8024F. A flashing snowflake

indicates the minimum off-time is in effect.

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Troubleshooting

Symptom

Action

Display does not come on.

•

Check if the thermostat is mounted and latched on the

wallplate—mount and latch the thermostat on the

wallplate.

Check if the circuit breaker is tripped—reset the circuit

breaker.

•

Check if the fuse is blown—replace the fuse.

Check if the switch at the equipment is in the Off

position—set to the On position.

Temperature settings do not

change (example: cannot set the

heating higher or the cooling

lower).

•

Check that the temperature setpoints are: between 40

to 99°F (4 to 37°C).

continued

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Troubleshooting (Continued).

Symptom

Action

Heating does not come on.

•

Check if the circuit breaker is tripped—reset the circuit

breaker.

•

Check if the fuse is blown—replace the fuse.

Check if the switch at the equipment is in the Off

position—set to On position.

•

Wait five minutes for the system to respond.

Set SYSTEM switch to Heat.

Cooling does not come on.

•

Check if the circuit breaker is tripped—reset the circuit

breaker.

•

Check if the fuse is blown—replace the fuse.

Check if the switch at the equipment is in the Off

position—set to On position.

•

Wait five minutes for the system to respond.

Set SYSTEM switch to Cool.

continued

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Troubleshooting (Continued).

Symptom

Action

System on indicator

Wait a couple minutes after seeing the flame or

snowflake and then check the registers.

is lit, but no warm or

cool air is coming from the

registers.

System on indicator

Minimum off-timer is in effect. Wait five minutes until the

minimum off-timer is complete.

is flashing.

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Warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials,

under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any

time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at

Honeywell’s option) within a reasonable period of time.

If the product is defective,

(

i) return it, with a bill of sale or other dated proof of purchase, to the retailer from which you purchased it, or

ii) package it carefully, along with proof of purchase (including date of purchase) and a short description of

the malfunction, and mail it, postage prepaid, to the following address:

Honeywell Return Goods

Dock 4 MN10-3860

1885 Douglas Drive North

Golden Valley, MN 55422

This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by

Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the

possession of a consumer.

69-1464-1

Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEY-

WELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL

OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY

WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not

allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.

THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE

DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND

FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE YEAR DURATION OF THIS

WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation

may not apply to you.

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas

Drive North, MN10-1461, Golden Valley, MN 55422 or call 1-800-468-1502, Monday-Friday, 7:00 a.m. to 5:30

p.m., Central time. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée,

35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.

69-1464-1

Home and Building Control

Honeywell Limited-Honeywell Limitée

35 Dynamic Drive

Honeywell

1985 Douglas Drive North

Golden Valley, MN 55422

Scarborough, Ontario

Printed in U.S.A. on recycled

paper containing at least 10%

post-consumer paper fibers.

M1V 4Z9

9-1464-1 9-01 G.H.

U.S. Registered Trademark

www.honeywell.com/yourhome/

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