Chronotherm III 5-1-1 Day Programmable Thermostat

Chronotherm III 5-1-1 Day Programmable Thermostat
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Congratulations! You made a smart choice when you purchased your new Honeyweil Chronotherm lil Thermo-
stat. It's the smart thermostat that:
» Keeps you comfortable by automatically 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 programmed, so it's your choice—use the
pre-programmed schedule or set your own.
== шее - ка. EEE — .— "о _——— am … ... -———
TABLE OF CONTENTS
Adaptive Intelligent Recovery™ 1-4 Checking the current temperature
Recovery Setting 5-6 SOIING cece erties 29
Programming Your Thermostat 7.22 Maintaining Your Thermostat 31-34
Set the current day and time ur 7 Removing the thermostat …………mmencenennsnns 31
Set the program schedule and Replacing the thermostat une 32
heating temperatures ............—.—— weee... 8 Replacing the batteries .................e.me. eee 33
Seat the cooling temperatures, if you Power OUTAGOS rrr rere 34
have air conditioning ......ceemcierreriemannasineneas 15 Glossary 35-37
Set the system and fan switches, if Your Personal Program 39-40
your thermostat has them ccc. 21 Troubleshooting Guide 41-42
Operating Four Thermostat pe ne Typical Questions 43-45
emporarily changing the prog penieeananannanerraa
Permanently changing the program .................... 25 Typical Energy Savings 47
Operating the thermostat manuaily ................- 26 Quick Reference to the Keys 49-50
Canceling program settings................w....e.e—es. 27 Index 51-52
Checking the program times and Limited One-Year Warranty 56
temperatures .................eeeresnrienrne 28
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FOR aa ——
Features
Choose Adaptive
Intelligent Recovery Mar
conventional recovery
using screw on back of Monitor thermostat operation,
thermostat. read current time and room
temperature at a glance (12/24 Check status lights to see if the
hour clock conversion, Celsius/ thermostat is an and saving energy
, Fahrenheit conversion available). even in the dark (some models only).
/
Set different schedules i Ц Set the temperature
warmer or cooler at
, the touch of a key.
я
for weekdays,
Saturday and Sunday.
Bypass the stored
program for a single
=— cycle.
Choose manual
or automatic
thermostat >.
operation.
Choose system
operating mode with
the thermostat
= switches (some
models only).
Program up to four
different time periods
in each schedule.
Simple Four-Step Programming
Of course, you can use the schedule preprogrammed into your new thermostat (see
glossary, page 35). But it's an easy matter to program the thermostat to fit your lifestyle.
1 Set the current time and day. 3 Set the cooling temperatures, if you
See page 7. have air conditioning. See page 15.
2 Set the program schedule and heating 4 Set the system and fan switches, if
temperatures. See page 8. | your thermostat has them. See page 21.
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ADAPTIVE INTELLIGENT RECOVERY™
ADAPTIVE INTELLIGENT
RECOVERY™—BREAK-
THROUGH TECHNOLOGY,
SENSES TEMPERATURE
MORE LIKE YOU DO
M 168
1
Your new thermostat is so smart, » Your body perceives temperature from a variety of sources, not only
it's almost human. from the air in the room, but also from your surroundings-—waïls,
windows and furnishings.
= Human beings feel differences in temperature as slight as one
degree Celsius.
» 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-half
degree Celsius—so room temperature is more likely to “feel right” to
you and your family.
ADAPTIVE INTELLIGENT 2
RECOVERY™
me A DEE Zu
RANTE
IT ATT
ADAPTIVE INTELLIGENT RECOVERY™
THE OPTIMUM COMFORT
AND ENERGY SAVINGS
SOLUTION
TEMPERATURE
System Operating
in Comlart Mode
System Operating To
in Energy Savings Mode сбоя
| i
Le SAVING: He | = COMFORT
SAVINGS ———
PERIOD RECOVERY FAOM ENERGY SAVINGS PERIOD
TIME
THE THERMOSTAT USES THE SAME SCHEME TO RETURN GRADUALLY
TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON, Mi ET
" This thermostat is actually a small but powerful computer. When
calculating the exact time to turn on your furnace or air conditioner,
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 temperature anytime
during recovery by pressing the PRESENT SETTING key. On some
models, both the SYSTEM and ENRG SAV lights may be iit 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 accord-
ingly.
It typically takes four to eight days after installation for this thermostat
to adjust to the weather, your life style, home construction and
heating/cooling system. The thermostat calculates the LEAVE/
RETURN recovery separately from the SLEEP/WAKE recovery.
« With this thermostat you 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 conventional
recovery if you prefer to choose the exact time your furnace or air
conditioner comes onto start recovery.
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RECOVERY SETTING
Your thermostat includes a screw on the back marked “3A”, allowing
for the Adaptive Intelligent Recovery™ /conventional recovery choice.
RECOYERY
SELECTION
ADAPTIVE ru
INTELLIGENT
TA
Your thermostat was shipped from the factory with the screw posi-
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.
Mi
{FACTORY SETTING)
OUT 12 1 TURM
* With Adaptive intelligent Recovery", the dwelling will reach the
comfort temperature at the exact time you have programmed into the
thermostat. See pages 1-4 for detailed explanation of Adaptive
Intelligent RecoveryTM.
* 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.
М2120С
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).
PROGRAM Press key. Check thermostat display.
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3 _ 4
MM
A
INDICATES /
THERMOSTAT 15 BET
FOR CONVENTIONAL
RECOVERY
» |f the [J 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 wallplate,
turn screw 3A (on back of thermostat) clockwise /” Y until it bottoms.
DO NOT OVERTIGHTEN.
* If the [1 does not show, the thermostat is set for Adaptive Intelligent
Recovery™. If you would rather have conventional recovery, remove
thermostat from wallplate, turn screw 3A (on back of thermostat)
out Y? to 1 turn.
RECOVERY SETTING: 6
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STEP 1
SET THE CURRENT DAY AND TIME
t
You can program this thermostat either
on the wall or in your hand. SEE
PAGE 31 TO FIND OUT HOW TO
REMOVE THE THERMOSTAT FROM
THE WALL.
Always press the keys with your
fingertip or similar blunt tool. Sharp
instruments like a pen or pencil point
can damage the keyboard.
NOTE: Check the glossary, page 35,
for definitions of unfamiliar words.
IMPORTANT
Before you begin STEP 2, determine if your thermostat is set for Adaptive Intelligent Recovery™ or conventional
recovery. See pages 5-6.
If set for Adaptive Inteliigent Recovery™, program the times for when you want your home comfortable. The
SET
PRESENT
DAYTIME J.
[=]
=
Press and release. The display
shows 1:00 PM Mon.
Press and hold until the current En
day appears in the display. nue
Press and hoid until the current
time appears in the display. Be
sure AM or PM appears as
desired.
You have programmed the
current day and time. Go onto
Step 2.
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 temperature
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
SET THE PROGRAM
SCHEDULE AND HEATING
TEMPERATURES
Start by programming the WAKE
time and temperature for
weekdays.
The thermostat requires a
program for WAKE. You can
program LEAVE, RETURN and
SLEEP or not, as you please.
SET"
HEAT/COOL.
Press and release. Note that the ENT
display shows WAKE and the —_——
preprogrammed time and
{9
in
HEAT
temperature.
f you have air conditioning and SI Fan
the display reads COOL, press LS
and release to switch to HEAT. oe
12
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PROGRAMMING
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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.
LEAVE
COOLER
a
. If display reads SAT or SUN, on то
press and hold until MON TUE De Mu
WED THU FHI appears. wt
Press and hold until the display Ana 10
shows the desired starting time. UE Cf
Press and hold until the display
An o
shows the desired temperature. MU" COR
7 MON TUE WEN THU FAL HEAT
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 2
degrees below the air
conditioning temperature. For
example, if the cooling setting is
24° C, the maximum heating
setting is 22° C.
Press and release. The display
shows LEAVE, but no time or
temperature.
360
WOH TUF WED THU Fr HEAT
LEME
Press and hold until the display ‘ЭПым 16%
shows the desired starting time. Mar
MON TEJE AED FLFR
ET
Press and hold until the display DE aM OS
shows the desired temperature. MOR LE WED Th FO Me
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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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Fi
MON TUE WED TIA] AA HEAT
RETURN
„IM 19
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MOM TUE WED TH) FR HEAT
‚RETURN
Fr о
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Biol TEJE AED THU FR HEAT
RETURN
11
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WON TINE WED THU FRE HEAT
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Set the SATURDAY schedule.
Use the same procedure as for
weekdays. t
Set the SUNDAY schedule. Use
the same procedura 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.
SLEEP
SLEEP
в
æ
HUN
PROGRAM
“Press and hold until SUN | SAR
tru LJ
on the display.
Press and hold until SAT appears E Pr ce
POS PM (62
Press WAKE, LEAVE, RETURN
or SLEEP to select the time ni
period.
COOLER keys to set the tem-
perature.
Use the AHEAD/BACK keys to
set the time and the WARMER/
13
appears on the dispiay.
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 tem-
perature.
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 condition- on
ing, press and release to start the ió
program. Goto Step 4. =
- HL
14
STEP 3
SET THE COOLING t
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 tor
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
temperature for weekdays.
SET
HEAT/COOL.
Press and release. The display or =
shows WAKE and the time and A Y
temperature you programmed for ist
heating.
Press and release so COOL >
shows on the display, along with UL" Zhe
the preprogrammed cooling Mr -
temperature.
If display reads SAT or SUN, The oe
press and hold untit MON TUE ru LH
WOM TLE WED THU FR
WED THU FRI appears. ase
15
Press and hold until the display
100“ 24
shows the desired temperature. ponen mum 00 "
If the display blinks while you
hold down TEMPERATURE
WARMER or COOLER, you have
reached the setting limit. If your
thermostat can switch automati-
cally between heating and
cooling, the cooling temperature
must be at least 2 degrees higher
than the corresponding heating
temperature. For example, if the
heating setting is 21° C, the
minimum cooling setting is 23° C.
if you desire a lower cooling
setting, the heating setting must
first be lowered accordingly.
16
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Program the LEAVE
temperature, if desired.
Program the RETURN
temperature, if desired.
Program the SLEEP
temperature, if desired.
Set the cooling temperatures for
the SATURDAY schedule. Use
the same procedure as tor
weekdays.
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PROGRAMMING YOUR THERMOSTAT
LEAVE
Press and reiease. The display
shows LEAVE, the time pro-
grammed for heating, and 26° C.
Press and hold until the display
shows the desired temperature.
Press and release. The display
shows RETURN, the time
programmed for heating, and
26° С.
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.
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RETURN
SLEEP
18
LUN Ine Te a
Use the WARMER/COOLER
keys to set the temperature.
Set the cooling temperatures for
the SUNDAY schedule. Use the
same procedure as for
Press and hold until SUN E CBS
appears on the display. su con
weekdays.
Press WAKE, LEAVE, RETURN
or SLEEP to select the time LEAVE
period.
19
Use the WARMER/COOLER
keys to set the temperature.
You have completed program-
ming the cooling temperatures.
~~
NOTE: Some models will show — RUN Press and release to start the 10, -AC
-AC, indicating the thermostat is PROGRAM] program. e PM -
operating on backup batteries Go to Step 4. =
until the thermostat is mounted
on the waliplate and the system
is powered.
20
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STEP 4
SET THE SYSTEM AND FAN
SWITCHES, IF YOUR THERMO-
STAT HAS THEM.
Depending on thermostat model,
some or all of the switch positions
shown may be available to you.
Note the positions provided on your
thermostat, then set the switch(es)
as desired.
First set the fan switch.
Then set the system switch.
Now, while you enjoy precision
temperature control, read on to
learn about the operating flexibility
that makes this thermostat
THE SMART CHOICE.
FAN ON: The fan runs continu-
ously. Use for improved air circula-
tion during special occasions or for
more efficient electronic air
cleaning.
FAN AUTO: Normal setting for
most homes. The fan goes on and
off with the air conditioner in
summer. In winter, the fan on most
systems starts a few minutes after
the furnace comes on. It stops a
few minutes after the furnace goes
Cif. The fan starts and stops with
the furnace in some electric heat
systems.
#
HEAT: The thermostat controls your
heating system.
OFF: Both the heating and cooling
systems are off.
COOL: The thermostat controls
your air conditioning system.
AUTO: The thermostat controls
either your heating or air condition-
ing system, depending on room
temperature.
You have finished programming
your thermostat.
it you removed it from the wall to
program, replace it following the
procedure on page 32.
21
HEAT OFF COOL AUTO
HEAT OFF COOL AUTO
HEAT OFF COOL AUTO
- + » +
HEAT OFF COCL AUTO
29
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OPERATING YOUR THERMOSTAT
TEMPORARILY CHANGING
THE PROGRAM
x
These features let you custom-
tailor the program for those times
when someone comes home
early, or you're 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
CHANGE
TO LAST
PERIOD
AUN
PROGRAM
E UB
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 wilt flash “temporary” until
the next programmed time period
starts.
Press and release to
cancel any of the tempo-
rary settings.
23
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PERMANENTLY CHANGING
THE PROGRAM \
H your schedule changes or you
want a different temperature, you
can update any setting without
affecting the rest of the program.
OPERATING THE
THERMOSTAT MANUALL Y
This feature is particularly useful
when you go on vacation or
other extended absence. It does
not cancel your program.
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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
Temperature keys until the
display shows the desired now
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
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OPERATING YOUR THERMOSTAT
CANCELING PROGRAM
SETTINGS
Press and hoid the desired period
key until the time and tempera-
ture clear from the display (about
The thermostat requires time
and temperature settings in the
WAKE period, but any of the 3 seconds).
others can be canceled. Week-
day, Saturday, and Sunday
seftings are canceled separately:
RUN Press and release to return to
PROGRAM] normal operation.
эй — El
CHECKING THE PROGRAM
TIMES AND TEMPERATURES
Press and release the desired
period key. The start time and
temperature setting will appear
on the display.
You can check all the stored
settings without affecting the
permanent program.
Press and release to display the
next daily time and temperature
for that period.
Press and release to return to
AUN
PROGRAMI Normal operation.
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Ar
OPERATING YOUR THERMOSTAT
CHECKING THE CURRENT
TEMPERATURE SETTING
Press a single key to compare «
current reom temperature to the
settings at any time.
PRESENT
SETTING
Press and release, The display
Will show the current temperature
setting for several seconds, then
revert ta 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.
EC)
so
29
30
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REMOVING THE THERMOSTAT
1 Loosen the two captive screws
at the bottom corners of the 2 Puil the thermostat out from the 3 Lift the thermostat up and off the
case. bottom. base.
31
REPLACING THE THERMOSTAT
2 Swing down and press on
1 Hang the thermostat on the tabs at lower edge until thermo-
the top of the base. stat snaps in place. 3 Tighten the captive screws.
MAINTENANCE 32
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MAINTAINING YOUR THERMOSTAT
REPLACING THE BATTERIES
Your thermostat uses three AA or
AAA alkaline batteries, depending
on model. See the instructions
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
thermostat if you can insert the
new batteries within 20-30 seconds
of taking out the old ones.
POWER OUTAGES
Backup batteries will hold the pro-
gramming and keep the display on
during most power outages. Once
the power is restored, the system
wili resume normal operation.
To replace:
= If 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
hoider.
lf 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.
« 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
34
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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
Hecovery starts at the time
programmed into the thermostat;
house reaches comfort tempera-
ture shortiy thereaîter.
Energy-saving temperature
The lower (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 (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 programmed
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. The program, which is
the same tor all days of the week,
is:
Start Temperature
Period Time Heating Cooling
WAKE 8:00 AM 21°C 26°C
LEAVE — ------ No program --------
RETURN ------ No program--------
SLEEP 10:00 PM 16° С 26° С
GLOSSARY
GLOSSARY
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 condi-
tioning equipment to return the
house from the energy savings to
the comfort temperature. lf thermo-
stat is set for Adaptive Intelligent
Recovery™, the thermostat starts
the recovery 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.
Set point
The temperature you set on the
thermostat. The thermostat turns
the heating or cooling equipment on
and off to maintain 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
35
saving temperature.
Status lights—Lights on some
models that show system operating
mode.
ENRG SAV light—This light
glows during the LEAVE and
SLEEP 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
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GLOSSARY
Time period LEAVE—The time period when SLEEP—The time period when
One of four program periods; you can set back (winter) or up you can set back (winter) or up
WAKE, LEAVE, RETURN an (summer) the temperature for (summer) the temperature for
SLEEP available with the thermo- energy savings because the energy savings because the
stat. One period begins when the family is usually away from family is sleeping. Set it to start
previous period ends. home. at your family's normal bedtime.
WAKE—For conventional re-
covery, the time the recovery to
the comfortable temperature
begins; for Adaptive Ingelligent
Recovery", the time period
when you want the house at a
comfortable temperature while
the family gets up and gets
ready to leave for work or
school. This is the only period
that must contain a time and
temperature.
RETURN—For conventional
recovery, the time the recovery
to tha comfortable temperature
begins; for Adaptive Intelligent
Recovery™, the time period
when you want the house at a
comfortable temperature for
family activities in the evening
before bedtime. -
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
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PERIOD
WAKE
LEAVE
RETURN
SLEEP
PERIOD
WAKE
LEAVE
RETURN
SLEEP
PERIOD
WAKE
LEAVE
RETURN
SLEEP
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
TIME TEMPERATURE
Saturday Program
START HEATING
TIME TEMPERATURE
Sunday Program
START HEATING
TIME TEMPERATURE
YOUR PERSONAL
PROGRAM
COOLING
TEMPERATURE
COOLING
TEMPERATURE
39
COOLING
TEMPERATURE
40
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- TROUBLESHOOTING GUIDE
IF... t THEN...
Display will not come on. = 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.
Display flashes during programming. = You have reached the temperature setting limit. The setting range is
7° C to 31° GC. In models with automatic heat-coal changeover, the
COOL temperature setting must be at least 2° C above the HEAT
temperature setting.
Display flashes during operation. s Programming has been lost because of a power outage. You must
reprogram.
Program is lost due to power outage. = Check that backup batteries are installed correctly. Replace if
necessary. Reprogram the thermostat.
Temperature change occurs » Check the program times for the period in question.
at the wrong times. © Be sure that AM and PM indications are correct. Make sure the
current day and time are correct. Reprogram if necessary.
= 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 temperature when the
period starts.
41
Heating will not come one. = Check the fuse or circuit breaker and replace or reset if necessary. If
display is blank or says REPL BAT, install fresh batteries.
« Check that switch on thermostat is set to HEAT or AUTO.
= If temperature setting is higher than current temperature, and display
says HEAT ON, contact your heating and air canditicning contractor.
Cooling will not come on. = Check the fuse or circuit breaker and replace or reset if necessary. If
display is blank or says REPL BAT, install fresh batteries.
= Check that switch on thermostat is set to COOL or AUTO.
« 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.
« If temperature setting is lower than current temperature, and display
says COOL ON, contact your heating and air conditioning contractor.
The house is too warm or too cool. = Press PRESENT SETTING to check the current temperature setting.
a |f desired, change the time or temperature setting. See page 25.
Display says HEAT ON or system « Allow time for the furnace to heat up and the fan to come on
light is on, but no heat is coming before checking for heat at the register.
from the registers.
TROUBLESHOOTING Gé
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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 morn-
ing hours?
Battery-operated thermostats do not have indicator lights to conserve
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 wail temperature, much as your body does. Ît
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 43
minutes per Celsius 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 thermostat
*to conventional recovery 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 for your house to heat up to the comfort
temperature.
43
Remember, whichever way you set your thermostat, if it is so cold
outside that your house drops tc your sleep temperature, the furnace
will turn on and off at night to control the temperature at that setting.
№ bypasses afl program settings and holds the temperature at the
present setting. To increase or decrease the temperature while on
HOLD, use the WARMER-COOLER keys. Touching RUN PROGRAM
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 it applicable. For a temporary temperature
change, simply press WARMER or COOLER key. This temporary
setting will last until the next scheduled program begins.
Two ways. First, it saves energy (and money) by setting back the tem-
perature for blocks of time during the day or night. Second, it conserves
anergy by recovering gradually to the desired temperature. This
prevents overshooting your comfort set point (and wasting energy) or
undershooting the comfort set point (and forcing you to change the
thermostat setting, also wasting energy).
QUESTIONS
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TYPICAL QUESTIONS
t
7. My thermostat has ENRG SAV
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 (automatic)
changeover from heating to
cooling?
9. Sometimes my thermostat
doesn’t allow the house tem-
perature 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 pro-
grammed time is reached. But the system will operate intermittently to
gradually raise the temperature to your desired comfort level before the
time you've set as your WAKE 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.
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 temperature falls alt 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.
45
46
TED RAT EAS
ho,
TA TIMES
E E TE A
TEE
QT Le
wn
Approximate
percentage of
energy cost
savings*
@ % Winter Savings
Twice-A-Day, 5°C
decrease ;
Ш % Summer Savings
Once-A-Day, 3°C
increase
Á % Winter Savings
Once-A-Day, 5°C
decrease
“Actual savings depend on your
home, geograpnic location,
number of energy savin
periods and number of degrees co
increased or decreased.
М 456 X
TYPICAL ENERGY SAVINGS
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48
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Press these keys to: SET
PRESENT
DAYTIME
k
HEAT. COOL
JU G06 BAC
QUICK REFERENCE TO THE KEYS
Begin the current day or time program-
ming.
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 ar when reviewing
the program.
Set the time ahead and back. Hold either
Key down to change the setting faster.
49
Set the temperature while programming
and temporarily change the temperature
during operation. Hold either key down to
change the setting faster.
HOLD Hold any temperature you desire for an
TEMP extended period.
CHANGE Change the temperature to the set point
Ten of the previous period.
SKIP Maintain the current temperature through
PERIOD the next program period.
RUN Start your programmed schedule, cancel
PROGRAM temporary program changes.
PRESENT See the current temperature setting.
SETTING Setting may not match programmed
setting during recovery from energy
savings.
REFERENCE TO 50
KEYS
Г
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TN PA
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Mr
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Adaptive Intelligent Keys ................ ORR 49 Set current time ..........—.—.......—.... 7
Recovery. me LEAVE Corrreneracacennentrasonnneees 37,49 Set fan switch o.oo 21
Automatic Changeover ........... 9.16 To] 1) CJ PR * 36 Set heating
Batteries, replacement ............... 33 Maintenance нана 31 temperatures ..….….….….….……envarse 8
Blinking display .............———————.... 41 Manual operation w.............. 26 Set program schedule ereevarerecamenos 8
Canceling programs ...................27 - wooo „3 Set system switch ............. 22
Change temperature ............... 25 Period KeyS nc 36 Setback oii en. 36
tino present „о Personal program... 39 Setting limits ..........e..—.. ===... 9,16
CITES SEtUP ….….rrcccaranransensec carence cannes dD
Checking programs 28 PoWeroutage co... 34 SKID woe оноооннн 99
Clock dISPIAY n1ce-erereanee rene о de eee eee, 36 Sunday program ............ 14, 19, 36
Conventional Recovery ................ 5 Present SEUNG wooo 29
Cooling temperatures -...........—.. 15 Program schedule ..................—.. 39
51
Day cocoons 7 Programming overview ................. Switch, fan ..….…..…errercrreeerrersencrs 21
Display .............e..._eresvcrecorconcecera *, 7 Programming steps ..............—.—... 7 Switch, SYSteln .........e. eee meeevern=e 22
Energy Savings, Quick reference to SYSTEM light................eee.enan..e.. 36
Typical coors 47 the Keys cece cree, 49 System switch cores 22
pc as RETURN eme 079 Tao Cómt
| Removing thermostat ................. 31 Temporary program
ENRG SAVIGRt covers 36 Replacing batteries ................... 33 changes ..............ervezeecerereenoe 23
Fan switch menos em SLEEP wove 37,49 TE erstere alone 7
IO Saturday program ..........13, 18,36 Time period ....................c.esecrezess 37
Flashing display ...........c......41 Set cooling Troubleshooting au 43
Glossary ..............eeeeververcinaonacaras 35 temperatures .............. ee... 15 WAKE. 37, 49
Heating temperatures...................8 Set current day eee... 7 Warranty. enanos 56
Hold temperature .......................26 Weekday program ............8, 15, 37
*See the product features inside the front cover.
This equipment is a Class B digital apparatus which complies with Canadian Radio Interference Regulations, CAC с. 1374.
52
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Le ae ==
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
Honeywell 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.
« 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 {li THERMOSTAT
2. ELECTRONIC IGNITION x
3. AUTOMATIC VENT DAMPER
53
M 181
54
"Es
Tel E AR LA ot
EA *
at TFR
+ pe,
ELECTRONIC AIR CLEANERS
ENJOY A CLEANER BREATHING ENVIRONMENT PLUS MAINTAIN YOUR SYSTEM'S OPERATING
EFFICIENCY WITH A HONEYWELL ELECTRONIC AIR CLEANER
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
coll.
Save 10-25% in operating cests over the life of your
equipment because of the cleaner coils. Honeywell
guarantees your indoor coil will maintain optimum
efficiency and energy savings for at least 10 years, or
we'll pay half the cleaning bill.
Add a WB600 Status Panel to monitor air cleaner
operation conveniently. The W8600 is designed to
mount next to your Chronotherm lll Thermostat or in
any convenient, visible area. lts lights tell you when
the air cleaner is on, when it's past due for cleaning
and if a problem exists with the air cleaner.
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147 1 — —— ‚= a = - ним
Honeywell
HELPING YOU CONTROL YOUR WORLD
S.M.
Rev. 2-90 Printed in Taiwan R.O.C.
Form Number 69-0338—1
©Honeywell 1990
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