Honeywell T8000C User manual

169-1431
OWNER’S GUIDE
T8000C, T8001C, T8011R, T8024C
Programmable Thermostats
69-1431

69-1431
2
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 program-
ming 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.
Features
•Program up to four time periods with
temperature settings to complement
your lifestyle.
•Set different schedules for weekdays and
weekend.
•Programspermanentlyheldinnonvolatile
memoryineventofpowerfailure.
•Indefinite temperature hold.
•Preprogrammed for your convenience.

369-1431
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

69-1431
4
Key Locations and Descriptions
SYSTEM
CoolOffHeat
AutoOn
FAN
M14673
Hold
Select
HOLD KEY
• SET TEMPORARY TEMPERATURE HOLD.
INCREASE ▲ KEY
• PROGRAM TIME AND TEMPERATURE.
• SET INDEFINITE TEMPERATURE HOLD.
SELECT KEY
• CURRENT SETPOINT.
• CHANGE DAY AND TIME.
• PROGRAM SELECTIONS.
DECREASE ▼KEY
• PROGRAM TIME AND TEMPERATURE.
• SET TEMPORARY TEMPERATURE HOLD.
SYSTEM
SWITCH
FAN
SWITCH
TUE
PM

569-1431
Planning Program Schedule
The thermostat display shows day, time,
program period, and temperature.
The thermostat can be set for four time
periods per day for weekdays and weekend.
Before programming the thermostat, you can
use the program schedule to plan your
program.
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
inTable1.
Table1.PreprogrammedTime
andTemperatureSettings.
Period Time Heat Setpoint Cool Setpoint
Wake 6:00 AM 70°F
(21°C) 78°F (26°C)
Leave 8:00 AM 62°F
(17°C) 85°F (29°C)
Return 6:00 PM 70°F
(21°C) 78°F (26°C)
Sleep 10:00PM 62°F
(17°C) 82°F (28°C)

69-1431
6
Program Schedule
Weekday StartTime HeatingTemperature CoolingTemperature
Wake ________ ________ ________
Leave ________ ________ ________
Return ________ ________ ________
Sleep ________ ________ ________
Weekend StartTime HeatingTemperature CoolingTemperature
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).

769-1431
Programming Thermostat
The thermostat is flexible and can be program-
med for different schedules for weekdays and the
weekend to meet your lifestyle needs.
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.
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
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 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.)
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.

69-1431
8
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.)
IMPORTANT
Always press the keys with your
fingertip or similar blunt tool. Sharp
instruments like pens and pencil
points can damage the keyboard.
Setting Current Time and Day
1. To set current time, press Select twice.
Press ▲ or ▼
to set current
time.
While setting the current time, the word SET is
displayed.
2. To set day of week, press Select again.
Press ▲ or ▼
to set current
day.
To use the preprogrammed time and tempera-
ture (see Table 1), press Hold to exit the
programming mode.
M12591A
SET
PM
M18534
SET

969-1431
Setting Weekday Program
Slide the SYSTEM switch to the position, Heat
or Cool, you want to program. A flame (heat-
ing) or a snowflake (cooling) appears in the
right side of the display, when setting the
program temperature.
3. Wake
a. Press Select. Press ▲ or ▼to set
Wake
time.
b. Press Select. Press ▲ or ▼to set
Wake
temp-
erature.
4. Leave
a. Press Select. Press ▲ or ▼to set
Leave
time.
b. Press Select. Press ▲ or ▼to set
Leave
temp-
erature.
5. Return
a. Press Select. Press ▲ or ▼to set
Return
time.
M18570
SET
M12625C
SET
M18566
SET
M12627B
SET
M18567
SET

69-1431
10
b. Press Select. Press ▲ or ▼to set
Return
temp-
erature.
6. Sleep
a. Press Select. Press ▲ or ▼to set
Sleep
time.
b. Press Select. Press ▲ or ▼to set
Sleep
temp-
erature.
Setting Weekend Program
7. Wake
a. Press Select. Press ▲ or ▼to set
Wake
time.
b. Press Select. Press ▲ or ▼to set
Wake
temp-
erature.
M12629B
SET
M18568
SET
M12631C
SET
M18569
SET
M12633C
SET