Honeywell T8000C User Manual

T8000C

Programmable Thermostat

OWNER’S GUIDE

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Features

• Program up to four time periods and temperature settings to complement your lifestyle.

• Set different schedules for weekdays and weekends.

• Programs are permanently held in non-volatile memory in the event of a power failure.

• Indefinite temperature hold.

• Preprogrammed for your convenience.

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Welcome to the world of comfort and energy savings with your new Honeywell programmable
thermostat.

Your new Programmable Thermostat is designed to provide you with reliable, precise temperature
control. When you follow the simple programming instructions in this manual, your thermostat
automatically controls the temperature in your home, saving energy and allowing you to awake (or
return home) to a comfortable level of heating or air conditioning.

Direct questions concerning the operation of this thermostat to Honeywell Customer Assistance at
1-800-468-1502, Monday-Friday, 7:00 a.m.-5:30 p.m., Central time.

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The thermostat display shows day, time,
program period, and temperature.

Table 1. Preprogrammed Time

and Temperature Settings.

The thermostat can be set for four time
periods per day for weekdays and week­ends.

Before programming the thermostat, you can
use the following chart on page 5, to organize
your program schedule.

Fill in the times and temperatures you desire for
weekdays and week ends. If you decide not to
program the thermostat, it will follow the
preprogrammed time and temperature settings
shown in Table 1.

Period Time

Wake 6:00 AM 21°C

Leave 8:00 AM 17°C

Return 6:00 PM 21°C

Sleep 10:00PM 17°C

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Heat

Setpoint

(70°F )

(62°F )

(70°F )

(62°F )

Cool

Setpoint

26°C

(78°F )

29°C

(85°F )

26°C

(78°F )

28°C

(82°F )

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Program Schedule

Weekday Start Time Heating Temperature Cooling Temperature

Wake ________ ________ ________
Leave ________ ________ ________
Return ________ ________ ________
Sleep ________ ________ ________

Weekend Start Time Heating T emperature 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 37°C (99°F) or any lower than 4°C (40°F).

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Programming

The thermostat is flexible and can be program­med for different schedules for weekdays and
weekends, to meet your lifestyle needs.

Use the personal Program Schedule for
planning your time and temperature settings for
various times of the day. See page 5.

Four time periods are available during week­days and weekends —WAKE, LEAVE, RE­TURN, and SLEEP.

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
temperature and your equipment response
time, to give the equipment a head start to

heat or cool the house before you get up .
(This will be a higher temperature during
heating season, and a lower temperature
during cooling season.)

LEAVE is the time period y ou can set for an

energy-saving temperature while you are
away at w ork or school. (This will be a
lower temperature during heating season,
and a higher temperature during cooling
season.)

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 temperature and your equipment
response time, to give the equipment a
head start to heat or cool the house before
you arrive home.

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SLEEP is the time period you can set for an

energy-saving temperature while you are
sleeping. (For more comfortable sleeping,
some people choose not to raise the cool
temperature during the night.)

IMPORTANT

Always press the keys with your
fingertip or similar blunt tool. Sharp
instruments like pens and pencil
points can damage the keys.

Setting the Current Time and Day

1. To Set Current Time Press Select twice.

Press ▲ or ▼
to set current
time.

SET

PM

While setting the current time, the word SET is
flashing.

2. To Set Day of Week. Press Select again.
Press ▲ or ▼
to set current
day.

MON

M12593A

To use the preprogrammed time and tempera­ture settings (see Table 1), press Hold now, to
exit the programming mode. To enter a custom
program to fit you life style, continue to step 3.

M12591A

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Setting the Weekday Program

Slide the SYSTEM switch to the position, heat
or cool, you want to program. A flame (heat­ing) or a snowflake (cooling) will appear in
the lower right corner of the display, when
setting the program temperature.

3. Wake
a. Press Select. Press ▲ or ▼ to set

Wake
time.

4. Leave
a. Press Select. Press ▲ or ▼ to set

Leave
time.

M12626A

b. Press Select. Press ▲ or ▼ to set

Leave
temp­erature.

M12624A

b. Press Select. Press ▲ or ▼ to set

Wake
temp­erature.

M14205A

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5. Return
a. Press Select. Press ▲ or ▼ to set

Return
time.

M14203A

M12628A

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b. Press Select. Press ▲ or ▼ to set

Return
temp­erature.

6. Sleep
a. Press Select. Press ▲ or ▼ to set

Sleep
time.

b. Press Select. Press ▲ or ▼ to set

Sleep
temp­erature.

M14204A

M12630A

M14207A

Setting the Weekend Program

7. Wake

a. Press Select. Press ▲ or ▼ to set

Wake
time.

M12632A

b. Press Select. Press ▲ or ▼ to set

Wake
temp­erature.

M14206A

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8. Leave
a. Press Select. Press ▲ or ▼ to set

Leave
time.

b. Press Select. Press ▲ or ▼ to set

Return
temp­erature.

b. Press Select. Press ▲ or ▼ to set

Leave
temp­erature.

9. Return
a. Press Select. Press ▲ or ▼ to set

Return
time.

M12634A

M14211A

M12636A

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10. Sleep
a. Press Select. Press ▲ or ▼ to set

Sleep
time.

b. Press Select. Press ▲ or ▼ to set

Sleep
temp­erature.

M14210A

M12638A

SUN

SAT

M14212A

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11. Press Select. End is displayed. Program­ming is complete. The thermostat will
revert to dis­playing the
current day
time and temp­erature in five
seconds.

M12511A

Temporary Temperature Hold

1. Press ▲ or ▼ key to set a temporary

temperature
setting.

NOTE: The temporary temperature setting

remains in effect until the next progr am
period. To cancel press Hold twice.

TEMPORARY

PM

WED

M14214A

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.

1. Press Hold

2. Press ▲ or ▼ key to set indefinite

temperature
setting.

M14213A

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Setting System and Fan

Use the SYSTEM and FAN switches to change
the settings.

SYSTEM settings control the thermostat
operation as follows:

Heat: The thermostat controls the heating.
Off: Both the heating and cooling are off.
Cool: The thermostat controls the cooling.

Slide the SYSTEM switch in the lower right
corner of the thermostat to select the desired
system setting.

FAN settings control the system fan as follows:

On: Fan operates continuously.
Auto: Fan operates with equipment.

Slide the FAN switch in the lower left corner of
the thermostat to select the desired fan setting.

Heat and Cool Indicators

Indicates a call for heat.
Indicates a call for cool.

NOTE: In the programing mode the and

indicate system setting.

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