Honeywell T8611 User manual

Programmable Heut Pump Thermostat
,,”
Your new programmable heat pump thermostat is a precision instrument:that’s quality-built to
,,:give~,yau:many years ,of satisfactory, service. It’s a %mart” thermostat that lets you save energy
while still maintaining the standard,Cf comWyo,u want in your home.
This Owner’s Guide will show you how to get the,most benefit from your new thermostat.

Monitor thermostat oper$idn, Check statuslights to See if the
read current time and room thermostat is on’and saving energy,
Set different
schedules for warmer or cooler
‘at the touch of a
Choose manual
or automatic
Bypass the stored
~Prqgram up,,to
four different
AUX. HT., EM. or SUPL. HT., CHECK
(on some models). See Glossary,
page 29.
Simple Four-Step Programming
Of course, you can use the schedule preprogrammed into your new
thermostat (see Glossary, page 29). But it’s an easy matter to program the
thermostat to fit you! lifestyle.
1 Set the current time and day. See
page 1.
2 Set the program schedule and
heating temperatures. See page 2.
.3 Set the cooling temperatures. See
page 9.
4 Set the system and fan switches.
See page 15.
Programming Your Thermostat .............. .l-16
Set the current day and time .................. 1
Set the program schedule and
heating temperatures ....................... 2
Set the cooling temperatures .................. 9
Set the system and fan switches
on the subbase ............................. 15
Operating Your Thermostat ................. 17-23
Temporarily changing the program .......... 17
Permanently changing the program .......... 19
Operating the thermostat manually .......... .20
Canceling program settings., ............... .21
Checking the program times and
temperatures .............................. ,22
Checking the current temperature
sefiing ...................................... 23
Maintaining Your Thermostat ............... 25-28
Removing the thermostat .................... .25
Replacing the thermostat .................... .26
Replacing the batteries ....................... 27
Power outages .............................. .28
Glossary ..................................... 29-30
Your Personal Program ..................... 31-32
Troubleshooting Guide ...................... 33-34
Quick Reference to the Keys ................ 35-36
Index ......................................... 37-38

STEP 1
,,,,-SET:J+E CURRENT DAY
,~,~,::,,:+y? Tl,lME
:‘,’~:-??&I :can prggram this thermostat
,‘, ,‘i@tt$i:& the wall or in your
‘, hsnd.‘SEE PAGE 25 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
29, for definitions of unfamiliar
words.
STEP 2
SET THE PROGRAM
SCHEDULE AND HEATING
TEMPERATURES
Before You Begin.
The schedule form on page 31
provides an oppotiunity to plan
your schedule.
Now.
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
0
z%% Press and release. The display
shows 1:00 PM Mon.
Press and hold until the current
day appears in the display.
ml
Press and hold until the current
. < time appears in the display. Be
sure AM or PM appears as
:.
Ea desired.
You have programmed the
current day atid time. Go on to
Step 2.
m
I.
Ka
..
:.
El
Press and release. Note that the
display shows WAKE and the
preprogrammed time and
temperature.
If the display reads COOL, press
and release to switch to HEAT.
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 starting time.

Press and hold until the display
shows the desired temperature.
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
conditioning temperature. For
example, if the cooling setting is
75” F, the maximum heating
setting is 72” F.
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.
Press and release. The display
shows LEAVE, but no time or
temperature.
M
Press and hold until the display
. . shows the desired starting time.
-.
El
Press and hold until the display
shows the desired temperature.
4

Program the RETURN time and
temperature, if desired. Press and release. The display
shows RETURN, but no time or
temperature.
Ea Press and hold until the display
I . shows the desired starting time.
Press and hold until the display
shows the desired temperature.
Program the SLEEP time and
temperature, if desired. Press and release. The display
shows SLEEP and the
preprogrammed time and
temperature.
Ka Press and hold until the display
. shows the desired starting time.
Press and hold until the display
shows the desired temperature.

Set the SATURDAY schedule.
Use the same procedure as for
weekdays.
Press and release until SAT
appears on the display.
Press WAKE, LEAVE, RETURN or
SLEEP to select the time period.
Ka
:.
@!a
Use the AHEAD/BACK keys to
set the time and the
WARMER/COOLER keys to set
the temperature.
Set the SUNDAY schedule. Use
the same procedure as for
weekdays.
m
m
&a
..
..
Ea
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. To set air
conditioning, go to Step 3.
If you do not want to program
cool temperature skip Step 3 and
press RUN PROGRAM key.
7
8

The oroaram times are the same
for bbthheating and cooling.
Only the cooling temperatures
need to be programmed if you
have already programmed for
heating. To set ti~mes as you pro-
gram the cooling temperatures,
use the TIME AHEAD and BACK
keys as described in Step 2. But
if you change times for cooling,
you are also changing them for
heating!
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
temperature.
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
automatically 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
temperature, the heating
temperature must first be
lowered accordingly.
1_533-1
10

Program the LEAVE temperature,
if desired.
Program the RETURN tempera-
ture, if desired.
Program the SLEEP temperature,
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 7a0 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.
[pEgi=-‘““]
1-1
m
m
..
12

Use the WARMER/COQLER
keys to set the temperature.
Set the cooling temperatures for m Press and hold until SUN
the SUNDAY schedule. Use the ,. appears on the display.
same procedure as for
weekdays.
m Press WAKE, LEAVE, RETURN or
SLEEP to select the time period.
Use the WARMER/COOLER
keys to set the temperature.
You have completed program-
ming the cooling temperatures.
Press and release to start the
program.
Go to Step 4.

STEP 4
SET THE SYSTEM AND FAN
SWITCHES ON THE SUBBASE.
Depending on thermostat model,
some of the switch positions
shown may not be available to
you. Note the positions provided
on your subbase, then set the
switch@) 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 flexibil-
ity that makes this thermostat
THE SMART CHOICE.
FAN ON: The fan runs, continu-
ously. Use for improved ,air
circulation during special occa-
sions or for more efficient elec-
tronic air cleaning.
FAN AUTO: Normal setting for
most homes and businesses.
The fan starts and stops with the
compressor in heat pump sys-
tems when the system switch is
set to HEAT, AUTO or COOL.
When system switch is set to
EM. HT., the fan operates with
the auxiliary heat (on some
models).
EM. HT. or SUPL. HT.: The
thermostat controls only the
backup or supplemental heat.
The heat pump is off.
HEAT: The thermostat controls
your heating system.
OFF: Both the heating and cool-
ing systems are off
AUTO (select models only): The
thermostat controls either your
heating or cooling system,
depending on room temperature.
COOL: The thermostat controls
your cooling system.
You have finished programming
your thermostat.
If you removed it from the wall to
program, replace it following the
procedure on page 26.
16

TEMPORARILY CHANGING
THE PROGRAM
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:
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 pre-
vious period and flash “tempor-
ary” until the next regularly
scheduled period starts.
Press and hold until the desired
temperature is reached. The dis-
.~ ..,
play w rlasn ~‘remporary’ unl11 I ,t_M -“’
the next programmed time period
starts.
Press and release to cancel any
of the temporary settings.

PERMANENTLY CHANGING
THE PROGRAM
If your schedule changes or you
want a different temperature, you
can update any setting without m
affecting the rest of the program.
OPERATING THE
THERMOSTAT MANUALLY HOLD
0
TEMP
This feature is particularly USefUl
when you go oh vacation or
other extended absences. It does
not cancel your program.
PRESENT
L-l
SE71IW.X
RUN
0
PROGRAM
Press and release the desired
period key.
Press and hold until the desired
day schedule shows on the
display.
Press and hold the Time or
Temperature keys until the dis-
play 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
hold.
NOTE: Moving the system switch
also cancels hold.

CANCELING PROGRAM Press and hold the desired
SETTINGS period key until the time and
The thermostat requires time and
temperature settings in the m
temperature clear from the dis-
play (about 3 seconds).
WAKE period, but any of the oth-
ers can be canceled. Weekday,
Saturday and Sunday settings
are canceled separately RUN
0
Press and release to return to
PROGRAM normal operation.
CHECKING THE PROGRAM
TIMES AND TEMPERATURES
You can check all the stored set-
tings without affecting the per-
manent program.
Press and release the desired
period key. The start time and
temperature setting will appear
on the display.
Press and release to display the
next daily time and temperature
for that period.
0
Press and release to return to
RUN
PROGRAM normal operation.
22

CHECKING THE CURRENT
TEMPERATURE SETTING PRESENT
0
Press and release. The display
SETnNG will show the current tempera-
ture settina for several seconds,
press a single key to compare
current room temperature to the
setting at any time.
then rever? to the room
temperature.
During recovery from energy
savings, the setting displayed will
not match the programmed set-
ting. This is because the ther-
mostat gradually changes the
temperature setting during re-
covery to provide most efficient
use of the heating or cooling
equipment.
24

REMOVING THE THERMOSTAT
1 Loosen the two captive screws 2 Pull the thermostat out from 3 Lift the thermostat UD and off
at the bottom corners of the
case.
:1
the bottom. the subbase.
I I I
REPLACING THE THERMOSTAT
1 Hang the thermostat on the tabs
at the top of the subbase. 2 Swing down and press on lower edge until ther- 3 Tighten the captive screws,
mostat snap5 in place.

REMOVI’ FRIES
A3 AAA To replace:
n Insert the new batteries, mak-
misplay will , Set the system switch to OFF. ing sure the positive (+) termi-
,nen the bat- . Remove the thermostat from nals all face toward the right.
,tless the display the wall. See page 25.
n Replace the thermostat on the
;ating the batteries
n Lift the batteries out Of the wall. See page 26.
, Nhen you start, You holder. n Reprogram, if necessary
,ave to reprogram the
..mostat if you insert the new
&eries within 20-30 seconds of
taking out the old ones.
POWER OUTAGES
Backup batteries will hold the
programming and keep the dis-
play on during most power out-
ages. Once the power is re-
stored, the system will resume
normal operation.
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
I:00 PM to remind you to
reprogram.
28

Comfort temperature
the temperature you want in the
morning and evening when you’re
home.
Energy-saving temperature
The lower (heating) or higher
[cooling) temperature that lets you
be oi heating and cooling costs
when you’re asleep or away. Also
called the setback (heating) or setup
(cooling) temperature.
Period key
Ona of the four kevs-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 ifyou don’t set your
own program, or ifyour personal
program is lost for any reason. The
program, which is the same for all
Status Lights-Lights that show
system operating mode.
ENRG SAV light (green)-This
light glows during the LEAVE and
SLEEP periods llocated on
therm&tat).
SYSTEM light (yellow)-This light
glows whenever the thermostat is
calling for heating or cooling
(located on thermostai).
AUX HT light (green)-This light
glows whenever the thermostat is
calling for operation of the
backuo heater. Backuo iauxiliarv)
thermostai system switch is in the
EM HT or SUPL HT position
(located on subbase). On some
systems it may also indicate the
need to switch to EM. HEAT or
SUPL Hi because of a problem
with the heat pump.
Sunday program schedule
The schedule of WAKE, LEAVE,
RETURN and SLEEP period start
times and temperatures that you
program to run on Sundays.
Time oeriod
heat ii more expensive io oper&heat ii more expensive io oper& One~df four program periods: WAKE, LEAVE, RETURN and SLEEP
than the heat pump and typically
CHECK light (yellow)-Consult
than the heat pump and typically
your heat pump equipment
literature to determine whether
this light is used and its meaning
is used only when the heat pumpis used only when the heat pump
(located on subbase).
EM HT or SUPL. HT light (red)-
This light glows whenever the
is unable to handle the loadis unable to handle the load
(located on subbase).(located on subbase).
davs of the week. is:
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 cooling
equipment to return the house from
the energy savings to the comfort
temperature. 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
WAKE-The time period when
available with the thermostat. One
you want the house at a
comfortable temperature while
the family gets up and gets ready
period begins when the previous
to leave for work or school. This
is the only period that must
contain a time and temperature.
period ends.
LEAVE-The time period when
times and temperatures that you
program to run on Saturdays.
Setback
Reducing the!emperature in the
house for a set period every day in
winter for energy savings. The lower
temperature is the energy savings
temperature.
setup
Raising the temperature in the house
for a set period every day in summer
for energy savings. The higher
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. 29
you can set back (winter) or up
(summer) the temperature for
energy savings because the
family is usually away from home.
RETURN-The time period when
you want the house at a
comfortable temperature for
family activities in the evening
before bedtime.
SLEEP-The time period when
you can set back (winier) or up
(summer) the temperature for
energy savings because the
family is sleeping. Set it to stait at
your lamily’s normal bedtime.
Often the SLEEP program is set
only for the heating season so
family members can sleep cool in
?unmer.
Weekday program schedule
The schedule of WAKE, LEAVE,
RETURN and SLEEP period start
times and temperatures that you
program to run Monday throuqh
Friday

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
PERIOD
WAKE
LEAVE
RETURN
SLEEP
START HEATING COOLING
TIME TEMPERATURE TEMPERATURE
Saturday Program
PERIOD
WAKE
LEAVE
RETURN
SLEEP
START HEATING COOLING
TIME TEMPERATURE TEMPERATURE
PERIOD
WAKE
LEAVE
RETURN
SLEEP
START HEATING COOLING
TIME TEMPERATURE TEMPERATURE
32

IF. .
Display will not come on. THEN. . n Check that heat or cool system power is on. If you use batteries,
replace with fresh ones.
n Make sure thermostat is correctly mounted on subbase.
Display flashes during programming. n 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.
Display flashes during operation.
Program is lost due
to power outage.
Temperature change occurs
at the wrong times.
Heating will not come on.
n Programming has been lost because ofa power outage. You must
reprogram.
. 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
n Remember that the heating system or cooling system comes on
before the WAKE and RETURN start times so the house will be at
the desired temperature when the period starts.
n Checkthefuseorcircuitbreakerand replaceorresetifnecessary.
n Check that switch on thermostat is set to HEAT or AUTO. 33
. The:thermostat has a built-in time delay, which may add to time
delays in th&cooling e$juipment. Allow up to 10 minutes after
changing the setting before the compressor starts.
n ,If temp@ure setti@is’lower than current:temperature, and dis-
,,play $8)~ COOL ON qi SYSTEM Iight’iS on, contact your heating
and air conditioning contractor.
The building is too
n Press ~PRESENT SETTIN& to check, the current temperature
warm or too cool. setting.
. If desired, change the time or tem@rature setting. See page 19.
Display says HEAT ON or system . Allbwiime forthe heating equipmentto heat upbefore checking for
light is on, but no,heat is coming heat at the register. ,,~
from the registers.
Display tlsshes,REPL~~A~,or goes
blank,when @tier:& turned o!. ‘: ~,~,~~stalJ,fresh A&:alk$ne ,t+tteries (Seempage ,271.
,,: ,,,,, ‘,,:,~,,~ ~,
34

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.
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 pro-
gramming 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 set-
ting. Setting may not match pro-
grammed setting during recovev
from energy savings