Honeywell Chronotherm III Owner's manual

Honeywell Chronotherm III Owner's manual
ON ZEN
Features
Monitor thermostat operation, Check status lights to see if the
read current time and room thermostat is on and saving energy,
temperature at a glance. even in the dark (some models only).
Choose Adaptive
Intelligent
Recovery!" or
conventional
recovery using
screw on back of
thermostat.
Set different — Setthe tempera-
schedules for ture warmer or
weekdays, cooler at the touch
Saturday, and of a key. |
Sunday.
— Bypass ec
Choose manual ceda abeto
or automatic single cycle.
operation.
Program up to ew Roem Choose system
four different time = nn ame operating mode
periods in each wenn un 3, (8 7 0 ee mention о) Ма ото хот. with the thermo-
schedule. В anaes ts ча = stat switches
a ЕТЕт. (some models
pe ones only).
la muette prog ve Ad
Te theçh Cart verge ae à
ETI | je
'
Congratulations! You made a smart choice
when you purchased your new Honeywell
Chronotherm Ill Thermostat. It's the smart
thermostat that:
® Keeps you comfortable by automati-
cally calculating exactly when the
furnace or air conditioning should go
on to have the house at the desired
comfort temperature at the time you want.
® Saves the maximum amount of energy
and money by remembering to
automatically set back the heat or air
conditioning when you leave home or
sleep.
® Provides the ultimate in comfort and
convenience. It comes already pro-
grammed, so it's your choice—use the
pre-programmed schedule or set your
own.
TABLE OF CONTENTS
Adaptive Intelligent Recovery ™ .................. 1-4 Checking the current temperature sa
Recovery Setting …………………………….…..….….….….. 5-6 GUN smc
Programming Your Thermostat ................ ‚ 7-22 Maintaining Your Thermostat ................... 31-33
Set the current day and time ........................ К. removing the thermostat ......................—..... 31
Set the program schedule and Replacing the thermostat a a a a 32
heating temperatures ...................e...====......8 Replacing the batteries ............................... 33
Set the cooling temperatures, se Power outages -..................6+===-.==eonsicciaienó 34
os E NT Glossary .....................—.....e.e0s 35-37
et the sy
if your thermostat has them ..................... 21 Your Personal Program ............................ 39-40
Operating Your Thermostat 23-29 Model Identification Guide ....................... 41-42
Temporarily changing the program ............. 23 Troubleshooting Guide ..............6iasi 0. de de
Permanently changing the program ............ 25 Typical Questions racvescesenceceneren venere a
Operating the thermostat manually ............. 26 Typical Energy Savings ..........................
Canceling program settings .............-.-.......- 27 Quick Reference to the Keys ................... 51-52
Checking the program times and Index nc sc sc sr uen raranca caca ae mere n rene nana 00es 53-54
toMperaluros ar. case EEE 28 Limited One-Year Warranty............................ 97
ADAPTIVE INTELLIGENT RECOVERY
ADAPTIVE INTELLIGENT
RECOVERY™—BREAK-
esta TECHNOLOGY
TEMPERATURE
MORE LIKE YOU DO Es e
€]
Your new thermostat is so m Your body perceives temperature from a variety of sources, not
smart, it's almost human. only from the air in the room, but also from your surroundings—
walls, windows and furnishings.
® Human beings feel differences in temperature as slight as two
degrees Fahrenheit.
m= Common household thermometers and standard thermostats
sense only air temperature, which may or may not reflect how hot
or cold the room actually feels to a human being.
= Your new thermostat reads the temperature of the wall as well
as the air—and responds to temperature changes as little as one
degree Fahrenheit—so room temperature is more likely to "feel
right” to you and your family.
ADAPTIVE INTELLIGENT 2
RECOVERY ”
ADAPTIVE INTELLIGENT RECOVERY
THE OPTIMUM COMFORT
AND ENERGY SAVINGS
SOLUTION
System Operating
in Energy Savings
HEATING TEMPERATURE
ENERGY | COMFORT
[— O ——— RECOVERY FROM ENERGY SAVINGS —| Ere |
TIME
= This thermostat is actually a small but powerful computer. When
calculating the exact time to turn on your furnace or air condi-
tioner, it considers (1) air temperature, (2) the temperature of
the wall and (3) when you want the comfort temperature
established.
® During Adaptive Intelligent Recovery™ the thermostat increases
the control temperature gradually and turns the equipment on
and off several times to save energy by avoiding "overshooting"
the comfort temperature. You can see the current control tem-
perature anytime during recovery by PO the PRESENT
SETTING key. On some models, both the SYSTEM and
ENERGY SAVING lights may be lit at the same time during
recovery.
® This "smart" control learns from experience. Each day it checks
how closely it "hit the target” and adjusts the recovery start time
accordingly.
It typically takes four to eight days after installation for this
thermostat to adjust to the weather, your life style, home construc-
tion and heating/cooling system. The thermostat calculates the
LEAVE/RETURN recovery separately from the SLEEP/WAKE
recovery.
# With this thermostat can choose whether you want to use
Adaptive Intelligent Recovery™ or conventional recovery. Use
Adaptive Intelligent Recovery™ if you want to choose the exact
time that the room reaches your comfort temperature. Use con-
ventional recovery if you prefer to choose the exact time your
furnace or air conditioner comes on to start recovery.
RECOVERY SETTING
< Your thermostat includes a screw on the back marked "3A", allowing
suo | м for the Adaptive Intelligent Recovery ™ /conventional recovery choice.
ADAPTIVE =
BAELLUGEN = | настоя seras;
COMENTA | OUT IS TO! TUEA
Your thermostat was shipped from the factory with the screw posi-
Ил tioned for Adaptive Intelligent Recovery™. Your installer may have left
\ = the screw in this position, or may have changed it to conventional
recovery. Before programming, you must know for which recovery
method your thermostat has been set.
* With Adaptive Intelligent Recovery™ , the dwelling will reach
the comfort temperature at the exact time you have pro-
grammed into the thermostat. See pages 1-4 for detailed ex-
planation of Adaptive Intelligent Recovery™
* With conventional recovery, the programmed time will mark
the start of recovery; therefore, you should program the start
time to be earlier than the desired comfort time. It may require
some trial and error to arrive at the best starting time, and the
best starting time will vary as the seasons change.
To determine which type of recovery is set into your thermostat, make
sure thermostat is powered with fresh batteries, or is mounted and
powered on the wall (see page 32).
: in 1
PROCRAMI Press key. Check thermostat display. e u™ 0°)
/
INDICATES
THERMOSTAT IS SET
FOR CONVENT
* If the OJ shows in the lower right-hand corner (see illustration),
the thermostat is set for conventional recovery. If you would
rather have Adaptive Intelligent Recovery™, remove
thermostat from wall, turn screw 3A (on back of thermostat)
clockwise ~» until it bottoms. DO NOT OVERTIGHTEN.
* If the [J does not show, the thermostat is set for Adaptive
Intelligent een If you would rather have conventional
recovery, remove thermostat from wall, turn screw 3A (on
back of thermostat) out «= 1/2 to 1 turn.
6
RECOVERY SETTING
PROGRAMMING YOUR THERMOSTAT
STEP 1 SET
PRESENT Press and release. The display HD
NOTA VHRENT PAY Zend de shows 1:00 PM Mon. |
You can program this thermostat
either on the wall or in your hand.
SEE PAGE 31 TO FIND OUT
Press and hold until the current O rn
HON TO RENOVE THE THIER Governed |
Always press the keys with your .
fingertip or similar blunt tool. Press and hold until the current 352.
Sharp instruments like a pen or time appears in the display. a
pencil point can damage the Be sure AM or PM appears
Keyboard. as desired.
You have programmed the
NOTE: Check the glossary, page current day and time. Go onto
35, for definitions of unfamiliar Step 2.
words.
IMPORTANT
Before you begin STEP 2, determine if your thermostat is set for Adaptive Intelligent Recovery™ or conven-
tional recovery. See pages 5-6.
If set for Adaptive Intelligent Recovery"“, program the times for when you want your home comfortable. The
thermostat will decide how early to begin the temperature changes.
If set for conventional recovery, program the times earlier, allowing your home to reach the comfort
Hb obrero by the time you get home or wake up. Some trial and error may be required to arrive at
the best starting times.
The schedule form on page 39 provides an opportunity to plan your schedule.
STEP 2 Press and release. Note that the 6:00 70%
SET THE PROGRAM display shows WAKE and the enn =
SCHEDULE AND HEATING preprogrammed time and
TEMPERATURES temperature.
Start by programming the
WAKE time and temperature for If you have air conditioning and Mw are
weekdays. esd the display reads COOL, press o =
The thermostat requires a program and release to switch to HEAT. ue
for WAKE. You can program
LEAVE, RETURN, and SLEEP or
not, as you please.
8
PROGRAMMING
PROGRAMMING YOUR THERMOSTAT
NOTE: The display shows
Adaptive Intelligent Recovery“
setting in the following
instructions.
Program the LEAVE time and
temperature, if desired.
NOTE: You can cancel the
LEAVE, RETURN, or SLEEP
program by holding down the
period key until the time and
temperature disappear from the
display.
If display reads SAT or SUN, press 500
and hold until MON TUE WED км Ln
THU FRI appears.
e
| Le
ча
shows the desired starting time. ны
Ms Fu a Teo Pi
Press and hold until the display | ЭНГ Г лм
shows the desired temperature. uu
NON FUR WED Tel Fy
Press and hold until the display I AA as
If the display starts to blink
while you are holding down
TEMPERATURE WARMER or
COOLER, you have reached the
setting limit. If your thermostat
can switch automatically between
heating and cooling, the heating
temperature must be at least 3
degrees below the air condition-
ing temperature. For example,
if the cooling setting is 75°F, the
maximum heating setting is 72°F.
shows LEAVE, but no time or
temperature.
WON TUE WED Pe FR
LLE
Press and release. The display |
Press and hold until the display | 830”
shows the desired starting time. au
Press and hold until the display 6:30“
shows the desired temperature. MUS Fl MEE Ted; Fi
1
PROGRAMMING YOUR THERMOSTAT
Program the RETURN time and
temperature, if desired.
Program the SLEEP time and
temperature, if desired.
Press and release. The display
shows RETURN, but no time or
temperature.
Press and hold until the display
shows the desired starting time.
Press and hold until the display
shows the desired temperature.
Press and release. The display
shows SLEEP and the prepro-
grammed time and temperature.
Press and hold until the display
shows the desired starting time.
Press and hold until the display
shows the desired temperature.
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SLEEP
о
-
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12
PROGRAMMING YOUR THERMOSTAT
Set the SATURDAY schedule.
Use the same procedure as for
weekdays.
Set the SUNDAY schedule. Use ”a
the same procedure as for Fu
weekdays.
NOTE: Some models will show
-AC, indicating the thermostat is
operating on backup batteries RUN
until the thermostat is mounted PROGRAM
on the wallplate and the system
is powered.
Press and hold until SAT appears
on the display.
Press WAKE, LEAVE, RETURN,
or SLEEP to select the time
period.
Use the AHEAD/BACK keys
to set the time and the
WARMER/COOLER keys to set
the temperature.
Press and hold until SUN appears
on the display.
Press WAKE, LEAVE, RETURN,
or SLEEP to select the time
period.
Use the AHEAD/BACK keys
to set the time and the
WARMER/COOLER keys to set
the temperature.
You have completed setting the
program schedule and heating
temperatures. If you have air
conditioning, go to Step 3.
If you do not have air condi-
tioning, press and release to start
the program. Go to Step 4
(1990. 52]
13
PROGRAMMING YOUR THERMOSTAT
STEP3
SET THE COOLING
TEMPERATURES, IF YOU
HAVE AIR CONDITIONING
The program times are the same
for both heating and cooling. Only
the cooling temperatures need
to be programmed if you have
already programmed for heating.
To set times as you program the
cooling temperatures, use the
TIME AHEAD and BACK keys as
described in Step 2.
First program the WAKE temper-
ature for weekdays.
Press and release. The display
shows WAKE and the time and
temperature you programmed for
heating.
Press and release so COOL shows
on the display, along with the
preprogrammed cooling temper-
ature.
If display reads SAT or SUN, press
and hold until MON TUE WED
THU FRI appears.
Press and hold until the display
shows the desired temperature.
If the display blinks while
you hold down TEMPERATURE
WARMER or COOLER, you have
reached the setting limit. If your
thermostat can switch auto-
matically between heating and
cooling, the cooling temperature
must be at least 3 degrees higher
than the corresponding heating
temperature. For example, if
the heating setting is 70°F, the
minimum cooling setting is 73°F.
If you desire a lower cooling
о, the heating setting
must first be lowered
accordingly.
800“ PI
ea
15
“nn Ce
HE ы^” 16°
MON TLE WAT el FE
us F
PROGRAMMING YOUR THERMOSTAT
Program the LEAVE temperature,
if desired.
Program the RETURN tempera-
ture, if desired.
Program the SLEEP tempera-
ture, if desired.
Set the cooling temperatures for
the SATURDAY schedule. Use
the same procedure as for
weekdays.
Press and release. The display
shows LEAVE, the time pro-
grammed for heating, and 78°F.
Press and hold until the display
shows the desired temperature.
Press and release. The display
shows RETURN, the time pro-
grammed for heating, and 78°F.
Press and hold until the display
shows the desired temperature.
Press and release.
Press and hold until the display
shows the desired temperature.
Press and hold until SAT appears
on the display.
Press WAKE, LEAVE, RETURN,
or SLEEP to select the time
period.
| 830 Tr
Os TUE WET Tea PE cr
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| 8:30” os:
MA PUB ED Tea 10 CO |
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MON TL ED Tel) FE “Cr
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ON TUR WED Th PS Cor
17
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MA TI VEND Ted PN Com
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MC TL ED Tel Fa con
1 100, 18
PROGRAMMING YOUR THERMOSTAT
Set the cooling temperatures for
the SUNDAY schedule. Use the
same procedure as for weekdays.
NOTE: Some models will show
-AC, indicating the thermostat is
operating on backup batteries
until the thermostat is mounted
on the wallplate and the system
is powered.
FOR
WARMER
RUN
PROGRAM
=
28
Use the WARMER/COOLER
keys to set the temperature.
Press and hold until SUN appears 100 16°
on the display.
Press WAKE, LEAVE, RETURN,
or SLEEP to select the time
period.
19
Use the WARMER/COOLER
keys to set the temperature.
You have completed program-
ming the cooling temperatures.
Press and release to start the
program.
+ Uo - AL |
Go to Step 4. —
20
PROGRAMMING YOUR THERMOSTAT
STEP 4 FAN ON: The fan runs contin- FAN ON AUTO
SET THE SYSTEM AND FAN uously. Use for improved air rr
SWITCHES, IF YOUR THERMO- circulation during special occa-
STAT HAS THEM. sions or for more efficient elec-
tronic air cleaning.
Depending on thermostat model,
some or all of the switch positions FAN AUTO: Normal setting for FAN ON AUTO
shown may be available to you. most homes. The fan goes on and E
Note the positions provided on off with the air conditioner in | mm
your thermostat, then set the summer. In winter, the fan on
switch(es) as desired. most systems starts a few minutes
after the furnace comes on. It
First set the fan switch. stops a few minutes after the
furnace goes off. The fan starts
and stops with the furnace in
some electric heat systems.
21
HEAT OFF COOL AUTO
= = L L
Then set the system switch. HEAT: The thermostat controls am
your heating system.
HEAT OFF COOL AUTO
. a . a.
OFF: Both the heating and
cooling systems are off.
HEAT OFF COOL AUTO
ее ее a .
COOL: The thermostat controls
your air conditioning system.
AUTO: The thermostat controls HEAT OFF COOL AUTO
either your heating or air condi- AE EE
tioning system, depending on
room temperature.
You have finished programming
your thermostat.
Now, while you enjoy precision If you removed it from the wall to
temperature control, read on to program, replace it following the
learn about the operating flexi- procedure on page 32.
bility that makes this thermostat
THE SMART CHOICE.
22
UPERATING YOUR THERMOSTAT
TEMPORARILY CHANGING
THE PROGRAM
These features let you custom-
tailor the program for those times
when someone comes home
early, or youre staying up late, or
you plan to be out for the evening.
To keep the current temperature
through the next program period:
To go back to the temperature
of the previous program period:
To temporarily raise or lower the
temperature for the current period
only:
If you change your mind:
SKIP
NEXT
PERIOD
Press and release. The name
of the period to be skipped will
flash in the display until the next
regularly scheduled period starts.
Press and release. The display
will show the name of the previous
period and flash “temporary” until
the next regularly scheduled
period starts.
Press and hold until the desired
temperature is reached. The
display will flash “temporary” until
the next programmed time period
starts.
Press and release to cancel any
of the temporary settings.
Hn "0 |
23
=
| es Jr
mel
=
OPERATION 24
OPERATING YOUR THERMOSTAT
PERMANENTLY CHANGING
THE PROGRAM
If your schedule changes or you
want a different temperature, you
can update any setting without
affecting the rest of the program.
OPERATING THE
THERMOSTAT MANUALLY
This feature is particularly useful
when you go on vacation or other
extended absence. It does not
cancel your program.
Ним
PROGRAM
PRESENT
SETTING
HUN
PROGRAM
Li
=
Рай
pa)
в
af
в
=
Press and release the desired
period key.
Press and hold until the desired
schedule day shows on the
display.
Press and hold the Time or Tem-
perature keys until the display
shows the desired new program.
Press and release to return to
normal operation.
Press and release.
Press and hold to change the
temperature setting. After a few
seconds the display will show the
current temperature.
Press and release to check the
temperature setting.
Press and release to cancel
manual control.
NOTE: Moving the system
switch also cancels hold.
25
[He ig №
[Ho id 60|
60|
245m |
26
OPERATING YOUR THERMOSTAT
CANCELING PROGRAM
SETTINGS
The thermostat requires time and
temperature settings in the WAKE
period, but any of the others can
be canceled. Weekday, Saturday,
and Sunday settings are canceled
separately.
CHECKING THE PROGRAM
TIMES AND TEMPERATURES
You can check all the stored
settings without affecting the
permanent program.
RUN
| "HC
Press and hold the desired period
key until the time and tempera- ' = -
ture clear from the display (about e
3 seconds).
Press and release to return to
normal operation.
S 15m
on PUE VALE Tedy 1
Tu
68°
27
Wr
LU) Lips
WON TUE wD Te bE
Hr
period key. The start time and
temperature setting will appear
on the display.
Press and release the desired |
55
Press and release to display the
next daily time and temperature |
for that period.
Press and release to return to
normal operation.
28
OPERATING YOUR THERMOSTAT
CHECKING THE CURRENT
TEMPERATURE SETTING
Press a single key to compare
current room temperature to the
settings at any time.
PRESENT
SETTING
Press and release. The display 68:
will show the current temperature | rig
setting for several seconds, then
revert to the room temperature.
Applicable if thermostat is set for
Adaptive Intelligent Recovery '“:
During recovery from energy
savings, the setting displayed
will not match the programmed
setting. This is because the
thermostat gradually changes
the temperature setting during
recovery to provide most
efficient use of the heating or
cooling equipment.
30
MAINTAINING YOUR THERMOSTAT
REMOVING THE THERMOSTAT
1 Loosen the two captive screws
at the bottom corners of the 2 Pull the thermostat out from the 3 Lift the thermostat up and off
case.
bottom. the base.
31
REPLACING THE THERMOSTAT
2 Swing down and press
1 Hang the thermostat on the on lower edge until ther-
tabs at the top of the base. mostat snaps in place. 3 Tighten the captive screws.
32
MAINTENANCE
MAINTAINING YOUR THERMOSTAT
REPLACING THE BATTERIES
Your thermostat uses three AA
or AAA alkaline batteries, de-
pending on model. See the in-
structions inside the thermostat
door to determine the size. The
display will flash "REPL BAT"
when the batteries get low.
Unless the display is blank
(indicating the batteries are
dead) when you start, you won't
have to reprogram the thermo-
stat if you can insert the new
batteries within 20-30 seconds
of taking out the old ones.
POWER OUTAGES
Backup batteries will hold the
programming and keep the
display on during most power
outages. Once the power is
restored, the system will resume
normal operation.
To replace:
® |f your thermostat has a system
switch, set it to OFF.
# Remove the thermostat from
the wall. See page 31.
® Lift the batteries out of the
holder.
® Insert the new batteries, making
sure the positive (+) terminals
all face toward the right.
® Replace the thermostat on the
wall. See page 32.
® Reprogram, if necessary.
33
If the display goes off when
power is lost, either the backup
batteries need to be replaced
or are not installed. When power
Is restored, the display will flash
1:00 PM to remind you to
reprogram.
34
GLOSSARY
Adaptive Intelligent
Recovery ™
Recovery automatically starts
early enough so your house is
at the comfort setting by the
time you've chosen.
Comfort temperature
The temperature you want in
the morning and evening when
you're home.
Conventional Recovery
Recovery starts at the time
programmed into the thermo-
stat; house reaches comfort
temperature shortly thereafter.
Energy-saving temperature
The ower (heating) or higher
(cooling) temperature that lets
you save on heating and
cooling costs when you're
asleep or away. Also called the
setback (heating) or setup
setback (heating) or setup
(cooling) temperature.
Period key
One of the four keys—WAKE,
LEAVE, RETURN, or SLEEP—
that you press to check or
program the start time and
temperature for a time period.
Preprogrammed schedule
This is the schedule pro-
grammed into your thermostat at
the factory. It sets a night
program that provides energy
savings if you don't set your own
program, or if your personal
program IS lost for any reason.
he POE which is the same
for all days of the week, is :
Start Temperature
Period Time Heating Cooling
WAKE 600 AM 70% 78°F
LEAVE = No program--------
RETURN =------ No program--------
SLEEP 1000PM BO°F 78°F
Program
The times and temperatures you
set to define the comfort and
energy savings periods for each
schedule (weekdays, Saturday,
Sunday).
Recovery
The time when the thermostat
operates the heating or air
conditioning equipment to return
the house from the energy
savings to the comfort tempera-
ture. If thermostat is set for
Adaptive Intelligent Recovery“,
the thermostat starts the recov-
ery period early so the house
will be at the comfort setting by
the time you've chosen.
Saturday program schedule
The schedule of WAKE, LEAVE,
RETURN, and SLEEP period
start times and temperatures
that you program to run on
Saturdays.
Setback
Reducing the temperature in the
house for a set period every day
in winter for energy savings. The
lower temperature is the energy
savings temperature.
GLOSSARY
Set point
The temperature you set on the
thermostat. The thermostat
turns the heating or cooling
equipment on and off to main-
tain this temperature at the
thermostat location until another
temperature setting goes into
effect.
Setup
Raising the temperature in the
house for a set period every day
in summer for energy savings.
The higher temperature is the
energy saving temperature.
35
Status lights
models that show system
operating mode.
ENRG SAV light—This light
e during the LEAVE and
LEEP periods.
SYSTEM light— This light
glows whenever the thermo-
stat is calling for heating or
air conditioning.
Sunday program schedule
The schedule of WAKE, LEAVE,
RETURN, and SLEEP period
start times and temperatures
that you program to run on
Sundays.
36
GLOSSARY
Time od
One of four program periods;
WAKE, LEAVE, RETURN, and
SLEEP; available with the
thermostat. One period begins
when the previous period ends.
WAKE—For conventional
recovery, the time the recov-
ery to the comfortable tem-
perature begins; for Adaptive
Intelligent Recovery“, the
time period when you want
the house at a comfortable
temperature while the family
gos up and gets ready to
eave for work or school. This
is the only period that must
contain a time and
temperature.
LEAVE— The time period
when you can set back
(winter) or up (summer) the
temperature for energy
paving because the family is
usually away from home.
RETURN—For conventional
recovery, the time the recov-
ery to the comfortable tem-
perature begins; for Adaptive
Intelligent Recovery“, the
time period when you want
the house at a comfortable
temperature for family activi-
ties in the evening before
bedtime.
SLEEP—The time period
when you can set back
(winter) or up (summer) the
temperature for energy
savings because the family
IS sleeping. Set it to start at
your family's normal bed-
time.
Often the SLEEP program is
set only for the heating
season so family members
can sleep cool in summer.
Weekday program schedule
The schedule of WAKE, LEAVE,
RETURN, and SLEEP period
start times and temperatures
that you program to run Monday
through Friday.
37
38
YOUR PERSONAL PROGRAM
You can use the tables below to plan your schedule
before you begin programming. If you choose not to program a
daytime energy savings period, leave the LEAVE and
RETURN periods blank.
Weekday Program
START HEATING COOLING
PERIOD TIME TEMPERATURE TEMPERATURE
WAKE
LEAVE
RETURN _
SLEEP
Saturday Program
START HEATING COOLING
PERIOD TIME TEMPERATURE TEMPERATURE
WAKE _ —
LEAVE x
RETURN —
SLEEP > 39
Sunday Program
START HEATING COOLING
PERIOD TIME TEMPERATURE TEMPERATURE
WAKE =
LEAVE
RETURN =
SLEEP ВЕ
YOUR PERSONAL
PROGRAM
MODEL IDENTIFICATION GUIDE
HEATING ONLY MODELS [eno Wa ida SAV and ; ao. without > SAV and
Es The batteries hold the program during The batteries provide all power to the
no switching or HEAT-OFF power outages sata
switching only. ges. VINTON.
T8600B/T8601B/T8603B 41
Thermostats with ENRG SAV and Thermostats without ENRG SAV and
SYSTEM lights use three AAA batteries. SYSTEM lights use three AA batteries.
These thermostats have AUTO- The batteries hold the program during The batteries provide all power to the
Abi wer outages. thermostat.
ON fan switching and either po 9 r
HEAT-OFF-COOL or HEAT-OFF- —
| cc
COOL-AUTO system switching.
T8600C/T8601C/T8603C
Г |
FA
T8600D/T8601D/T8603D T8602D
MODEL
IDENTIFICATION
TROUBLESHOOTING GUIDE
IF...
Display will not come on.
Display flashes during programming.
Display flashes during operation.
Program is lost due
to power outage.
Temperature change occurs
at the wrong times.
Heating will not come on.
Cooling will not come on.
The house is too
warm or too cool.
Display says HEAT ON or system
light is on, but no heat is coming
from the registers.
TROUBLESHOOTING
THEN...
m Check that heat or cool system power is on. If you use batteries,
replace with fresh ones.
= Make sure thermostat is correctly mounted on base.
m You have reached the temperature setting limit. The setting
range is 45°F to 88°F. In models with automatic heat-cool
changeover, the COOL temperature setting must be at least 3°F
above the HEAT temperature setting.
s Programming has been lost because of a power outage. You
must reprogram.
m Check that backup batteries are installed correctly. Replace if
necessary. Reprogram the thermostat.
m Check the program times for the period in question. Be sure that
AM and PM indications are correct. Make sure the current day
and time are correct. Reprogram if necessary.
m If using Adaptive Intelligent Recovery '“, remember that the
furnace or air conditioner comes on before the WAKE and
RETURN start times so the house will be at the desired tempera-
ture when the period starts. 43
m Check the fuse or circuit breaker and replace or reset if necessary.
If display is blank or says REPL BAT, install fresh batteries.
m Check that switch on thermostat is set to HEAT or AUTO.
a |f temperature setting is higher than current temperature, and
display says HEAT ON, contact your heating and air conditioning
contractor.
m Check the fuse or circuit breaker and replace or reset if necessary.
If display is blank or says REPL BAT, install fresh batteries.
a Check that switch on thermostat is set to COOL or AUTO.
m The thermostat has a built-in time delay on cooling to protect the
compressor. Allow up to 10 minutes after changing the setting
before the air conditioner starts.
=m If temperature setting is lower than current temperature, and
display says COOL ON, contact your heating and air conditioning
contractor.
sm Press PRESENT SETTING to check the current temperature
setting.
m |f desired, change the time or temperature setting. See page 25.
= Allow time for the furnace to heat up and the fan to come on
before checking for heat at the register.
44
TYPICAL QUESTIONS
1. Why do some models of
this thermostat have lights?
2. The temperature displayed
on the thermostat doesn't
always match the room
temperature on another
thermostat located right next
to it. Why?
3. Can | control when the
furnace comes on in the
morning?
4. What does the HOLD key
do?
5. How long does the HOLD
key hold?
6. How can this thermostat
save energy when it comes on
and off so many times early in
the morning hours?
Battery-operated thermostats do not have indicator lights to con-
serve battery power. Others may have one or two indicator lights,
depending upon the exact model and application.
First, the thermostat is a very accurate instrument designed to
sense both air temperature and wall temperature, much as your
body does. It gives an average reading over a period of time.
Second, it is self-adjusting, and will take a few days after installation
to adapt to your home.
When the thermostat is set for Adaptive Intelligent Recovery", it
will turn on the furnace as early as necessary to reach your desired
comfort temperature at the programmed time. The earliest it will be
is 24 minutes per degree setback ahead of your WAKE time, but it
will vary depending on your system, the weather and how much the
temperature dropped in your house at night.
If you want to control the start time yourself, just switch the thermo-
stat to conventional récovery following the directions on page 6.
This way, the furnace won't come on until your programmed WAKE
time, but of course it will take a little while lor your house to heat up
to the comfort temperature.
45
Remember, whichever way you set your thermostat, if it is so cold
outside that your house drops to your sleep temperature, the
furnace will turn on and off at night to control the temperature at that
setting.
It bypasses all program settings and holds the temperature at the
present setting. To increase or decrease the temperature while on
OLD, use the WARMER-COOLER keys. Touching RUN PRO-
GRAM will return the device to programmed operations.
Forever! The HOLD button will hold the temperature indefinitely.
The only way to release it is to push the RUN PROGRAM button or
change the system switch positions if applicable. For a tempora
temperature change, simply press WARMER or COOLER key. This
temporary setting will last until the next scheduled program begins.
Two ways. First, it saves evergy (and money) by o back the
temperature for blocks of time during the day or night. Second, it
conserves energy by recovering gradually to the desired tempera-
ture. This prevents overshooting your comfort set point (and wast-
ing energy) or undershooting the comfort set point (and forcing you
to change the thermostat setting, also wasting energy).
46
QUESTIONS
TYPICAL QUESTIONS
7. My thermostat has ENERGY
SAVING and SYSTEM lights.
Why do they both go on at the
same time? (For example:
during the sleep period.)
8. Why don't all thermostat
models have AUTO (auto-
matic) changeover from
heating to cooling?
9. Sometimes my
Chronotherm lll Thermostat
doesn't allow the house
temperature to drop to my
SLEEP setting before it starts
bringing the furnace on. Why?
During Adaptive Intelligent Recovery™ , when you recover
gradually to a next set point, you will stay in the energy-saving
mode until the next programmed time is reached. But the system
will operate intermittenly to gradually raise the temperature to your
desired comfort level before the time you've set as your WAK
time. You will always be saving energy until the next period's actual
set point is reached.
Most parts of the country don't have wide temperature swings
during a 24-hour period, so it is not necessary. Desert climates,
such as Phoenix, are the exception, because of wide variations in
temperature which may require both the air conditioner and furnace
to run during different times within a given 24-hour period.
47
When you start your SLEEP period, the thermostat will turn off your
furnace and your house temperature will start to fall. After that, the
thermostat is out of the picture until the house "empero falls all
the way to your SLEEP temperature setting or until recovery starts.
In mild weather or with good insulation, your house temperature
may not fall all the way to your SLEEP temperature setting and the
thermostat won't turn on your furnace until the time to recover back
up to your comfort setting.
48
TYPICAL ENERGY SAVINGS
PERCENTAGE OF HEATING ENERGY YOU CAN SAVE
ONE 10” F ENERGY SAVINGS PERIOD"
70” TO 60°F; 8 HRS./DAY
Ea 9% TO 11%
EA 12% TO 13%
= 14% TO 15%
16% TO 18%
TWO 10” F ENERGY SAVINGS PERIODS*
DODGE CITY, KS
CHICAGO, IL
BILLINGS, MT MPLS. MN
10% - 20%
ATTLE, WA au
A 9% - 18%
NEW YORK, NY
12% - 23%
CINCINNATI, OH
12% - 24%
SAN FRANCISCO, CAR
14% - 26%
70° TO 60°F; 8 HRS/DAY, 8 HRS /NIGHT LOS ANGELES, CAY per
15% - 30% e ERE й
18% TO 24% }
PHOENIX, AZ
23% TO 25% HOENIX. /
25% TO 29%
UP TO 30% foam” pli NM
DALLAS. TX ATLANTA, GA
- 15% - 27%
15% - 28%
“Savings for a 5F, heating setback are at least MIAMI, FL
1/2 of savings for a 10°F setback. NEW ORLEANS, LA 18% - 30%
Actual savings depend on your home, geographic location, 16% - 30%
number of energy saving penods and energy savings temperature. 49
The energy saving period must be at least 2 hours long to save any energy.
PERCENTAGE OF COOLING ENERGY YOU CANSAVE —N PODGE Cua KS CHICAGO.IL ew york NY
ONE 5 F ENERGY SAVINGS PERIOD"
75 TO 80* F; 8 HRS./DAY
EN 7% TO 9%
EN 10% TO 11%
BE 12% TO 14%
EE] 15% TO 18%
TWO 5 F ENERGY SAVINGS PERIODS*
75 TO 80” F: 9 HAS.DAY, 7 HAS./MNIGHT
EN 11% TO 15%
BEN 16% ТО 18%
EZ 19% ТО 22%
23% ТО 33%
"Actual savings depend on your home, geographic location,
13% - 20%
MPLS, MN
12% - 20%
13% - 20%
CINCINNATI, OH
12% - 19%
BILLINGS, MT
SEATTLE, WA 9%- 16%
16% - 23%
САМ ЕВАМС!5СО, САДА Л ОМЕН »
14% - 19% 1. бет UN
LOS ANGELES, CAY *
20%-27% — “1
PHOENIX, AZ
7% - 11%
ALBUQUERQUE, NM
1
- 16%
DALLAS, TX ATLANTA A
9% - 14% o
MIAMI, FL
NEW ORLEANS, LA 11% - 17%
11% - 17%
number of energy saving periods and energy savings temperature.
The energy saving period must be at least 2 hours long to save any energy.
50
ENERGY SAVINGS
rr.
В
у
RETURN
PRESENT
SETTING
—Û
QUICK REFERENCE TO THE KEYS
Press these keys to:
Begin the current day or time
programming.
Set the day of the week and
select the program day during
programming.
Select the time period to program or
review. Comfort times depend on
selection of Adaptive Intelligent
Recovery™ or conventional recovery.
Switch between heat and cool
modes during programming or
when reviewing the program.
Set the time ahead and back.
Hold either key down to change
the setting faster. "
Set the temperature while
programming and temporarily
change the temperature during
operation. Hold either key down
to change the setting faster.
Hold any temperature you desire
for an extended period.
Change the temperature to the
set point of the previous period.
Maintain the current temperature
through the next program period.
Start your programmed schedule,
cancel temporary program
changes.
See the current temperature
setting. Setting may not match
programmed setting during
recovery from energy savings.
REFERENCE TO ое
KEYS
INDEX
"e Intelligent
ecovery'*...............—ee.....ee.e. 1
Automatic Changeover .... 9, 16
Batteries, replacement ..........33
Blinking display ..................... 43
Canceling programs ............. 27
Change temperature ............. 25
Checking present
CON ame nas mecoseme 29
Checking programs .............. 28
Clock display ................. 5
Conventional Recovery .......... 5
Cooling temperatures ............ 15
DEN sd sie oi sia 7
Display ......................ecee.. a"
Energy Savings,
Typical ............................ 49
SLEEP ,evroaccononecncanenecaneneas 37,51
Saturday
program ............... 13, 18, 36
Set cooling
temperatures .................. 19
Set current day .........=..>>>=s...s. 7
Set current time ..................... 7
Set fan switch ....................... 21
Set heating
temperatures ..................... 8
Energy-saving
temperature ....................... 35
ENRG SAV light ..................... 36
Fan switch es 21
PORNOS == aa iaa pose y
Flashing display ...................... 43
GINES nc cime 35
Heating temperatures ............... 8
Hold temperature .................... 26
Identification, model ................ 41
ROS cae qe 51
LEAVE ..................e.eeeccccen. 37,51
LOTS re avr ci acer *, 36
Maintenance ........................... 31
Manual operation .................... 26
Model descriptions .................. 41
Set program schedule ............... 8
Set system switch ................... 22
Setbark -..... 2... sn. .36
Setting limits .................... . 9,16
SOLID sci to 35
UD rm ra ‚23
Sunday program ........ .14, 19, 36
SWISH. fan «cinemas 21
Switeh; SYStem.....—— ==... 22
SYSTEM light ...................—.... 36
"See the product features inside the front cover.
Operalion «=== 23
Pano KB mc" 36
Personal program ................... 39
Power outage ........................ 34
Preprogrammed
GCHOQUIO onza da dune 36
Present setting 29
Program schedule 39
Programming
OVETVIEW esse EEE "
Programming steps ................... 7
Quick reference to
M0 KOS von 51
RETURN res
Removing thermostat .............
Replacing batteries .................
... 37,51
31
33
System switch 22
Table of Contents .................... =
Temporary program
ChangeS a... CI
TIME ecran mme GEES REA HARB 7
me penod sum e 37
Troubleshooting ..................... 43
WAKE === ==="... 37,51
Warranty ....................e....e.e..... 58
Weekday program ........ 8, 15, 37
This equipment is a Class B digital apparatus which complies with Canadian Radio Interterence Regulations, CAC c.1374.
INDEX
FOR MORE ENERGY SAVINGS
SAVE EVEN MORE ENERGY WITH
THESE HONEYWELL ACCESSORIES
If you have a standing pilot heating system less than
7-10 years old, you can stay comfortable and save
even more. Team your new thermostat with Hon-
eywell Electronic Ignition and an Automatic Vent
Damper and save a total of up to 36% on energy
costs for your gas furnace or boiler.
® Electronic Ignition ignites the pilot only
when necessary to light the furnace.
e Automatic Vent Damper closes to trap
useful heat left inside the furnace or boiler
after the burner shuts off. The additional
heat stays inside the house, where it
provides useful heat. 1. CHRONOTHERM Ill THERMOSTAT
2. ELECTRONIC IGNITION
3. AUTOMATIC VENT DAMPER
55
ELECTRONIC AIR CLEANERS
ENJOY A CLEANER BREATHING ENVIRONMENT PLUS MAINTAIN YOUR SYSTEM'S
OPERATING EFFICIENCY WITH A HONEYWELL ELECTRONIC AIR CLEANER
e Turn your home into a cleaner breathing environment with a Honeywell Electronic Air Cleaner. It
removes up to 95% of airborne, dust, pollen, bacteria,tobacco and cooking particles. It reduces
recurring cleaning and redecorating costs, too.
® Maintain your heating and cooling system's operating
efficiency. Our electronic air cleaner prevents dirty
air particles from accumulating on your system's
indoor coil.
e Save 10-25% in operating costs over the life of your ва. y
equipment because of the cleaner coils. Honeywell | 4
quarantees your indoor coil will maintain optimum .»
efficiency and energy savings for at least 10 years, or E
we'll pay half the cleaning bill.
e Add a W8600 Status Panel to monitor air cleaner
operation conveniently. The W8600 is designed to
mount next to your Chronotherm Ill Thermostat or in N
any convenient, visible area. Its lights tell you when N
the air cleaner is on, when it's past due for cleaning
and if a problem exists with the air cleaner. 56
LIMITED ONE-YEAR 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 ime during the warranty period. the product is defective or malfunctions, Honeywell shall repair or replace it (at
Honeywell's option) within a reasonable penod of time
If the product is defective,
(1) return it with a bill of sale or other dated proof of purchase, to the dealer or contractor from which you purchased it, or
(i) package it carefully. along with proof of purchase (including date of purchase) and a short description of the malfunction, and mail it, postage prepaid, 10 the
following address
Honeywell Inc
Return Goods Department
1050 Berkshire Lane
Ptymouth, MN 55441-4401
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
Honeywell's sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL 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 imitation 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 our Consumer Affairs Department, Honeywell Inc, 1885 Douglas Drive North, Golden Valley, MN
55422-4386 or call toll-free at 1-800-468-1502, Monday-Fnday, 7:30 a.m.-4:00 p.m. Central time
Printed in Taiwan ROC.
Honeywell
HELPING YOU CONTROL YOUR WORLD
69-0313-1 S.M. 7/89 © Honeywell 1989 Printed in U.S.A
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