Honeywell RCT8101 User manual

Operating
Manual
RCT8101
Touchscreen Programmable Thermostat
69-2453ES-03

Read and save these instructions.
Need Help?
For assistance with this product please visit http://yourhome.honeywell.com
or call Honeywell Customer Care toll-free at 1-800-468-1502
® U.S. Registered Trademark. Patents pending.
US Patent No. 6,595,430; 7,114,554; 7,274,972; 7,225,054 and other patents pending
Copyright © 2013 Honeywell International Inc. All rights reserved.
CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not
operate cooling system when outdoor temperature is below 50°F (10°C).
This manual covers the RCT8101 model.
(Pull thermostat from wallplate and turn over to find model number)
This thermostat contains a Lithium battery which may contain Perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate

RCT8101
1 69-2453ES—03
About your new thermostat
Thermostat features.................................... 2
Programming at a glance............................ 3
Quick reference to controls ......................... 4
Quick reference to status display................ 5
Programming & Operation
Clock setting................................................ 6
Fan setting .................................................. 7
System setting ............................................ 8
Using program schedules ........................... 9
Program schedule overrides ..................... 12
Auto Changeover ...................................... 14
Furnace filter reminder.............................. 15
Special features ........................................ 16
Appendices
Battery replacement.................................. 17
In case of difficulty .................................... 18
Limited warranty........................................ 20
This thermostat is ready to go!
Your new thermostat is pre-programmed
and ready to go.
See page 3 to check settings.
Table of contents

Operating Manual
69-2453ES—03 2
About your new thermostat
Congratulations! You’ve just purchased the world’s most advanced, easy-to-use thermo-
stat. It has been designed to give you many years of reliable service and climate control.
Features
• Largetouchscreendisplaywithbacklightiseasytoread—eveninthedark.
• Dailyprogramschedulesmaximizecomfortandeconomy.
• One-touchtempcontroloverridesprogramscheduleatanytime.
• Precisecomfortcontrolkeepstemperaturewithin1°Fofthelevelyouset.
• Change/checkreminderletsyouknowwhentoreplacefurnacefilter.
2

RCT8101
3 69-2453ES—03
This thermostat is ready to go!
Your new thermostat is pre-programmed and ready to go. All you have to do is set the
time and day. Then check the settings below and change if needed:
1. Set clock ................................................................................................See page 6
2. Select fan setting: Preset to Auto .......................................To change, see page 7
3. Select system setting: Preset to Heat ................................To change, see page 8
4. Program schedules: Preset to energy-saving levels
while you’re at work or asleep (assumes you wake at
6 am, leave at 8 am, return at 6 pm and go to bed
at 10 pm)....................................................................... To change, see pages 9–11
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time, and
manually adjust the temperature (see pages 12–13).

Operating Manual
69-2453ES—03 4
Quick reference to controls
M27525
Mon
System & FanScheduleClock & Mode
System
Cool Fan Auto
Set To
Heat On
Recovery
AM
75
75
6:01
Arrow keys
Press to adjust temperature (see pages 11–13), or to make selections from screen menus.
Clock & More
Press to set clock (see
page 6) or furnace
filter reminder.
Schedule
Press to set program schedule (see pages 10–11).
System & Fan
Press to select fan
operation (see page
7) or system (see
page 8).

RCT8101
5 69-2453ES—03
Quick reference to status display
Mon
System & FanSchedule Clock & Mode
M27526
System
CoolFan Auto
Set To
Heat On
Recovery
AM
75
75
6:01
Current day of week
Smart Response®
Technology in
effect (see
page 17)
Current inside temperature Current time
Temperature
setting
System setting
(see page 8) Fan setting
(see page 7)
Other display messages:
• Cool On: Cooling system is activated
• Heat On: Heating system is activated
• Aux Heat On:Auxiliaryheatingsystemis
activated (heat pump systems only)

Operating Manual
69-2453ES—03 6
M27528
Go BackDone
MON
AM
6:01
M27527
System & FanSchedule Clock & Mode
Clock setting
To set the current time display, press CLOCK,
then press s or tto adjust the time. Press
and hold s or tto advance the time more
quickly.
Press DONEtosave&exit(orpressGO BACK
toexitwithoutchangingthetime).
Note: The real-time clock should never
require adjustment since it automatically
updates for daylight savings time, and stores
all date/time information.
Note: To change the current week
day display, see System Setup in your
Installation Guide.
Press CLOCK
Adjust time, then press DONE

RCT8101
7 69-2453ES—03
M27527
System & FanSchedule Clock & Mode
Fan setting
Press SYSTEM & FAN, then FAN to select fan
operation:
• On: Fan is always on.
• Auto: Fan runs only when the heating or
cooling system is on.
Press SYSTEM & FAN
Press FAN to select mode, then press DONE
M27529
System Fan Done
System
HeatFan Auto

Operating Manual
69-2453ES—03 8
M27527
System & FanSchedule Clock & Mode
System setting
Follow steps at left to select system:
• Heat: Thermostat controls only the heating
system.
• Cool: Thermostat controls only the cooling
system.
• Auto: Thermostat automatically selects heating
or cooling depending on the indoor temperature.
• Off: All systems are off.
• Em Heat(onlyforheatpumpswithauxiliary
heat): Thermostat controls Emergency and
AuxiliaryHeat.Compressorislockedout.
Note: The Auto and Em Heat system settings may not
Press SYSTEM & FAN
Press SYSTEM to select mode,
then press DONE
appear, depending on how your thermostat
was installed.
M27529
System Fan Done
System
HeatFan Auto

RCT8101
9 69-2453ES—03
Save money by setting program schedules
It’seasytoprogramyoursystemformaximumenergysavings.Youcanprogramfourtime
periods each day, with different settings for weekdays and weekends.
Set to the time you awaken and the temperature you want
during the morning, until you leave for the day.
Set to the time you leave home and the temperature you
want while you are away (usually an energy-saving level).
Set to the time you return home and the temperature you
want during the evening, until bedtime.
Set to the time you go to bed and the temperature you want
overnight (usually an energy-saving level).
WAKE
6:00 am
70 °
LEAVE
8:00 am
62 °
RETURN
6:00 pm
70 °
SLEEP
10:00 pm
62 °

Operating Manual
69-2453ES—03 10
Energy-saving settings for maximum cost savings
This thermostat is pre-set with energy-saving program settings. We recommend these
settings,sincetheycanreduceyourheating/coolingexpenses.(Seenextpagetoadjust
times and temperatures of each time period.)
Wake
(6:00 am)
Leave
(8:00 am)
Return
(6:00 pm)
Sleep
(10:00 pm)
Cool (Mon-Fri)Heat (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun)
70 °78 °70 °78 °
62 °85 °62 ° 85 °
70 °78 °70 ° 78 °
62 °82 °62 °82 °

RCT8101
11 69-2453ES—03
Go BackNext Step Done
Period
Wake
MON
TUE
WED
THU
FRI
M27531
Set To
Heat
AM
62
6:00
M27530
Go BackEdit View
M27527
System & FanSchedule Clock & Mode
To adjust program schedules
1. Press SCHEDULE, then EDIT to see weekdays.
2. Press SELECT DAY. You can select multiple days
to program with the same settings.
3. Press NEXT STEP twice, then press s or tto set
Wake time for selected day(s).
4. Press NEXT STEP, then s or tto set Heat
temperature for this time period.
5. Press NEXT STEP, then s or tto set Cool
temperature for this time period.
6. Repeat steps 3-5 to program other time periods
(LEAVE, RETURN, SLEEP), then press DONE.
7. Repeat steps 1-6 to program Saturday/Sunday.
(Press s or tuntil the desired day is flashing,
then press SELECT DAY.)
8. Press DONEtosave&exit.
Select day(s) Select time Select temp
Press SCHEDULE
Press EDIT

Operating Manual
69-2453ES—03 12
Mon
System & FanUse
Schedule Clock & Mode
M27532
System
HeatFan Auto
Temporary
Set To
Heat On
AM
62
68
6:08
Program schedule override (temporary)
Press s or tto immediately adjust the
temperature. This will temporarily override the
temperature setting for the current time period.
The new temperature will be maintained until
thenexttimeperiod.
Whenthetimerexpires,theprogramschedule
will resume and set the temperature to the level
you’ve programmed for the current time period.
To cancel the temporary setting at any time,
press USE SCHEDULE.
Press USE SCHEDULE to
resume program schedule
Adjust temperature

RCT8101
13 69-2453ES—03
Mon
Hold Cancel
M27533
Temporary
Set To
System
HeatFan Auto
AM
62
68
6:08
Permanent Hold
Program schedule override (permanent)
Press s or tto adjust temperature, then press
HOLD. This will turn off the program schedule.
Whatever temperature you set will be
maintained 24 hours a day, until you manually
change it, or press USE SCHEDULE to cancel
“Hold” and resume the program schedule.
Press HOLD to turn off program
schedule and maintain set
temperature
Adjust temperature

Operating Manual
69-2453ES—03 14
Use this feature in climates where both air conditioning and heating are used on the
same day. When the system mode is in Auto, the thermostat automatically selects heating
or cooling depending on the indoor temperature.
While in the Auto mode, if a schedule override takes place (temporarily or permanently)
the thermostat will automatically adjust the cooling and heating settings to maintain a
3-degree separation between the cool and heat settings.
Forexample,iftheheattemperatureisraisedtowhereitgetswithin3-dgreesofthecool
setting,thedisplaywillshowanuparrownextto“cool”toshowthethermostatisraising
the cool setting up to maintain a 3-dgreee separation.
The display will also show both “Auto” and either “Heat” or “Cool” for which temperature
setting you are currently adjusting. Press the system button to select between the heat
and cool to view/adjust either mode.
Auto Changeover

RCT8101
15 69-2453ES—03
Tue
System
Hold Cancel
M27534
SystemAuto
Heat
Fan Auto
Temporary
Set To
Heat
Cool
PM
69
74
1:09
º
Auto Changeover
Ifthecooltemperatureisloweredtowhereitgetsclosetotheheatsetting,anarrownext
to heat will show the thermostat is lowering the heat setting down to maintain a 3-degree
separation.
CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the
outside temperature drops below 50°F (10°C).
The triangle indicates the cool temperature is
increasing to maintain 3 degrees between heat and
cool settings.

Operating Manual
69-2453ES—03 16
ResetNext Done
M27536
60
Days
ResetSchedule Clock & Mode
M27535
System Fan Auto
Set To
Heat On
Change Filter
AM
70
70
6:01
Heat
If activated during installation, the furnace filter
reminder alerts you when it is time to replace
your filter.
Press RESET after changing the filter, to restart
the timer.
Toresetthereminderintervalbeforeitexpires:
1. Press MORE, then NEXT.
2. Press RESET.
3. Press DONEtosaveandexit.
Press MORE to reset reminder interval
Press RESET after changing filter
Furnace filter reminder

RCT8101
17 69-2453ES—03
About your new thermostatSpecial features
Smart Response®Technology: This feature allows the thermostat to “learn” how long the furnace
and air conditioner take to reach programmed temperature settings, so the temperature is reached at
thetimeyouset.Forexample:SettheWaketimeto6am,andthetemperatureto70°.Theheatwill
come on before 6 am, so the temperature is 70° by the time you wake at 6. The message “Recovery”
is displayed when the system is activated before a scheduled time period.
Compressor Protection: This feature forces the compressor to wait a few minutes before restarting,
topreventequipmentdamage.Duringthewaittime,themessage“Wait”isdisplayedonscreen.
Auto Changeover: This feature is used in climates where both air conditioning and heating are
used on the same day. When the system is set to Auto, the thermostat automatically selects heating
or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees
apart. The thermostat will automatically adjust settings to maintain this 3-degree separation.
CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the
outside temperature drops below 50°F (10°C).

Operating Manual
69-2453ES—03 18
About your new thermostatBattery replacement/Customer assistance
Batteries are optional (to provide backup power) if
your thermostat was wired to run on AC power when
installed.
Install fresh batteries immediately when the LO BATT
warning begins flashing. The warning flashes about 30
days before batteries are depleted.
Even if the warning does not appear, you should replace
batteries once a year, or before leaving home for more
than a month.
For assistance with this product, please visit
http://yourhome.honeywell.com
or call Honeywell Customer Care toll-free at
1-800-468-1502.
M28419
Grasp thermostat and pull to
remove from wallplate
Insert 2 fresh AA alkaline batteries
M28420