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XT300C, XT302C Deluxe  
Programmable Heat-Cool Thermostats  
OWNER’S GUIDE  
Pub. No. 22-5127-04  
(XT300C shown)  
69-1214  
TABLE OF CONTENTS  
CUSTOMIZING YOUR THERMOSTAT .............................................................................................................  
5
Program Options Set-Up by Your Trane Dealer ................................................................................................. 5-6  
GETTING AROUND THE KEYBOARD............................................................................................................. 7-8  
FEATURES ........................................................................................................................................................  
9
FEATURES YOU’LL WANT TO KNOW MORE ABOUT................................................................................... 10  
Comfort-R Comfort Enhancement System ........................................................................................................ 10  
Adaptive Intelligent Recovery Control................................................................................................................ 11  
The Optimum Comfort and Energy Savings Solution .................................................................................... 12-13  
NEAT STUFF YOU’LL BE USING OFTEN ....................................................................................................... 14  
Setting Temporary Temperatures ....................................................................................................................... 14  
Changing Temperature Setting Until the Next Schedule Period ........................................................................ 14  
Changing Temperature Setting Indefinitely ........................................................................................................ 16  
Vacation Mode ................................................................................................................................................... 19  
Information Key .................................................................................................................................................. 23  
Displaying Outdoor Temperature ....................................................................................................................... 24  
Displaying Current Settings........................................................................................................................... 23  
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Filter Indication .............................................................................................................................................. 25  
Setting or Resetting Filter Indication Timer ................................................................................................... 26  
PROGRAMMING YOUR THERMOSTAT .......................................................................................................... 28  
Clock ............................................................................................................................................................. 28  
Setting Current Day and Time ....................................................................................................................... 28  
Setting System and Fan ................................................................................................................................ 31  
Set System .................................................................................................................................................... 31  
Set Fan.......................................................................................................................................................... 31  
7-Day Program and Operation ...................................................................................................................... 32  
7-Day Preprogrammed Schedule.................................................................................................................. 32  
Customizing Your Own 7-Day Schedule ....................................................................................................... 34  
Programming the First Day ........................................................................................................................... 38  
Copying a Day............................................................................................................................................... 43  
Clearing Schedule Period ............................................................................................................................. 46  
24-Hour Program and Operation................................................................................................................... 49  
24-Hour Preprogrammed Schedule .............................................................................................................. 49  
Customizing Your Own 24-Hour Schedule .................................................................................................... 50  
Programming Your 24-Hour Schedule .......................................................................................................... 51  
Constant Temperature Setpoint Programming .............................................................................................. 56  
Setting Temperature and Fan Operation ....................................................................................................... 56  
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TROUBLESHOOTING....................................................................................................................................... 59  
DEFINITIONS .................................................................................................................................................... 62  
INDEX ................................................................................................................................................................ 66  
LIMITED WARRANTY ....................................................................................................................................... 67  
CUSTOMER ASSISTANCE ............................................................................................................................... 68  
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CUSTOMIZING YOUR THERMOSTAT  
Program Options Set-Up by Your Trane Dealer  
Your Trane dealer has programmed your thermostat using the options checked below. For example, your  
thermostat displays temperatures in degrees Fahrenheit if the checkbox next toFahrenheit (°F) is checked.  
Contact your Trane dealer to reprogram any of the options listed.  
NOTE: If no options are checked, those listed in the first column are the factory settings on your thermostat.  
Refer to the Definitions section for a description and comparison ofAdaptive Intelligent Recovery™ Control (a  
Honeywell trademark) to Conventional recovery.  
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Comfort-R™ Control  
❑
❑
Off  
On  
❑
❑
On  
Adaptive Intelligent  
Recovery™ Control  
Off (Conventional recovery)  
Cooling Droop  
❑
❑
❑
❑
On  
❑
❑
❑
❑
Off  
Temperature Display  
Clock Format  
Fahrenheit (°F)  
12-Hour Clock Format  
Centigrade (°C)  
24-Hour Clock Format  
System Setting  
(Heating and Cooling  
Setting)  
Auto/Manual (System  
automatically selects  
Heat or Cool; You can  
select Heat, Cool or  
Off.)  
Manual Only (You  
select Heat, Cool or  
Off.)  
❑
Auto only (System  
automatically  
selects Heat or  
Cool.)  
Outdoor Temperature  
Display  
❑
❑
No outdoor  
temperature is  
displayed  
❑
❑
Outdoor temperature  
is displayed (requires  
an outdoor sensor).  
Programming  
7-Day Programming  
24-Hour Programming  
❑
Constant Temp-  
erature Setpoint  
Programming  
NOTE: The XT300C, XT302C thermostats are manufactured for theTrane Company by Honeywell Inc. Specific  
features are unique to Trane and are only available on Trane models.  
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GETTING AROUND THE KEYBOARD  
The keyboard is located behind the thermostat cover. Three frequently used keys are located next to the display  
(Increase temperature setting, Decrease temperature setting, and Information key).The thermostat displays  
important information such as day, time, schedule period, temperature, filter indicator, system and fan operation.  
WHAT'S THE ROOM TEMPERATURE?  
WHAT TIME IS IT?  
DISPLAY IS BACKLIT  
FOR EASY READABILITY  
WHEN A KEY IS PRESSED.  
INCREASE TEMPERATURE SETTING.  
DECREASE TEMPERATURE SETTING.  
WHAT DAY IS IT?  
INFORMATION AT YOUR FINGERTIPS!  
DISPLAY THE OUTDOOR  
CURRENT PROGRAMMING  
PERIOD (EXAMPLE  
TEMPERATURE (ON SOME MODELS),  
CHECK YOUR CURRENT TEMPERATURE  
SETTINGS, OR DISPLAY FILTER USE  
IN NUMBER OF DAYS.  
DISPLAY SHOWS "WAKE")  
CURRENT FAN  
SETTING (EXAMPLE  
DISPLAY SHOWS "AUTO")  
CURRENT SYSTEM  
SETTING (EXAMPLE  
DISPLAY SHOWS "HEAT")  
DAYLIGHT  
SAVINGS TIME  
INDICATOR  
FILTER  
EXPIRATION  
INDICATOR  
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NO NEED TO WORRY ABOUT  
PRESSING THE WRONG KEY!  
RUN PROGRAM, RETURN  
TO NORMAL OPERATIONS,  
OR UNDO LAST ACTION.  
SET CURRENT DAY AND TIME (INITIALLY  
AND AFTER EXTENDED POWER OUTAGES).  
PROGRAM SCHEDULING KEYS  
PROGRAM UP TO FOUR TIME  
PERIODS AND TEMPERATURES  
FOR EACH DAY OF THE WEEK.  
SELECT SYSTEM OPERATION  
(HEAT, COOL, OFF, AUTO).  
Set Current  
Run  
Leave  
Wake  
Return  
Sleep  
Fan  
Day/Time  
Program  
HOLD MODE: OVERRIDE  
NORMAL PROGRAMMING  
OPERATION, OR GO  
Time  
Copy  
Set Program  
CHOOSE FAN OPERATION (ON OR  
AUTO), OR CHOOSE FAN OPERATION  
FOR EACH PROGRAM PERIOD OF  
THE DAY ON SELECT MODELS.  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
INTO VACATION MODE!  
Daylight  
Time  
SET CURRENT OR  
PROGRAM DAY  
NO MORE GUESSING! SELECT  
FILTER EXPIRATION TO REMIND  
YOU TO CHANGE THE FILTER.  
EASILY CHANGE  
BETWEEN STANDARD AND  
DAYLIGHT SAVINGS TIME  
EASY PROGRAMMING!  
COPY ONE  
PROGRAMMED DAY  
TO ANOTHER DAY  
TIME KEYS  
INCREASE OR  
SWITCH BETWEEN  
HEATING AND COOLING  
TEMPERATURE SETTINGS  
DECREASE TIME  
SETTING FOR  
CURRENT OR  
PROGRAMMED  
TIMES.  
Time  
M17031A  
SET SLEEP TIMES  
AND TEMPERATURES  
SET WAKE TIMES  
AND TEMPERATURES  
Leave  
Set Program  
Wake  
Return  
Sleep  
SET LEAVE TIMES  
AND TEMPERATURES  
SET RETURN TIMES  
AND TEMPERATURES  
M17032  
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while on vacation. At the same time, set the  
comfort level you want when you return.  
Permanent schedule override—set the  
thermostat higher or lower indefinitely.  
Set the filter indicator (0, 7, 14, 21, 30, 45, 60,  
90, 120, 180, 270, or 360 days) to remind you to  
change the filter.  
Information at the press of a button—use the  
Information Key to find out the outdoor  
temperature (optional accessory), the current  
setpoints, or the filter status.  
No batteries needed—your thermostat retains  
the schedule for the life of the product. You  
never have to reprogram the schedule even  
after a power outage. (The day and time may  
need to be reset after an extended power  
outage.)  
FEATURES  
•
•
•
•
Worry-free programming.  
Comfort-R Comfort Enhancement Process—a  
unique Trane feature.  
•
•
•
•
•
Adaptive Intelligent Recovery Control for  
comfort and energy savings.  
Wake, Leave, Return and Sleep at the comfort  
level you select.  
Customize the program schedule—program  
your own schedule to fit your needs.  
Continuous comfort and energy savings—  
adjust the schedule as often as you like.  
Temporary schedule override—set the  
thermostat higher or lower for the current  
program schedule.  
•
•
•
Vacation mode (1 to 255 days) for added  
comfort and energy savings. Set the  
temperature higher or lower for energy savings  
•
Set or reset the day and time as needed—you  
can even set Daylight Savings Time.  
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The Comfort-R™ system is specifically designed to  
enhance the moisture removal process of your air  
conditioning system and to make the air drier. This  
system is so unique, it received a patent from the U.S.  
Patent Office. During times of high relative humidity,  
as well as during mild weather, the Comfort-R system  
increases the moisture removal ability of your air-  
conditioning system. This results in a lower relative  
humidity inside your home, which in turn, allows you  
to feel more comfortable. The resulting lower relative  
humidity also allows you to maintain the temperature  
setting on your thermostat at a higher temperature.  
FEATURES YOU’LL WANT TO  
KNOW MORE ABOUT  
Comfort-R Comfort Enhancement System  
Comfort can best be described as the proper balance  
of temperature and relative humidity, also known as  
“your comfort index.” The greatest level of comfort is  
achieved when the temperature and relative humidity  
are in balance with your body. When the relative  
humidity is low, you feel comfortable at a higher  
temperature. Likewise, when the relative humidity is  
high, you feel comfortable only at a lower tempera-  
ture. However, if the relative humidity becomes too  
high, then true comfort cannot be achieved at any  
temperature.  
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these three things, Adaptive Intelligent Recovery™  
control gradually changes the temperature from the  
energy savings setting to the comfort setting (for  
example, from a heating temperature of 62° at night to  
70° in the morning).  
Adaptive Intelligent Recovery Control  
Your Thermostat Senses Temperature  
More Like You Do  
Your new thermostat is so smart, it’s almost human. You  
perceive temperature from a variety of sources, not only  
from the air in the room, but also from your surrounding  
walls, windows and furnishings. Humans feel differences  
in temperature as slight as two degrees Fahrenheit.  
Common household thermometers and standard  
thermostats sense only air temperature, which may not  
reflect how hot or cold the room actually feels to you.  
Your new thermostat reads both the temperature of the  
wall and 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.  
The system runs continuously until the comfort tempera-  
ture you choose is reached without overshooting the  
setting. This saves energy. How do you know when the  
system is in recovery? The thermostat displays In  
Recovery whenever the thermostat activatesAdaptive  
Intelligent Recovery Control. So, In Recovery displays  
during the recovery time from Sleep to Wake and from  
Leave to Return.  
AM  
Room  
The Deluxe Programmable Heat-Cool Thermostat acts  
like a computer. When calculating the time to turn on  
your heating or cooling system, it considers (1) air  
temperature, (2) wall temperature, and (3) the time you  
want to reach the comfort temperature.After considering  
Mon  
Sleep In Recovery  
System  
Heat  
Fan  
Auto  
M10344  
In Recovery indication shown in example above.  
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After installation or new schedule programming, your  
thermostat learns from experience. How? Each day it  
checks how closely it hit the recovery target (for  
example, 70° at 6:00 AM) and adjusts the next day’s  
recovery start time accordingly. After four to eight  
days, the thermostat has adjusted to local weather,  
your lifestyle, the construction of your home, and your  
heating and cooling system.  
Your new thermostat saves energy and keeps you  
comfortable at the same time. By now you may be  
wondering how to program your thermostat and how  
to use some more time and energy-saving features.  
First, let’s look at features you’ll be using often, like  
how to override the current programming mode or  
hold the thermostat at a specific temperature while  
you go on vacation. You can even program the  
thermostat to return to normal scheduled program-  
ming on your last day of vacation so you don’t have to  
worry about energy saving while you are gone or not  
being comfortable when you return.  
The Optimum Comfort and  
Energy Savings Solution  
In this example, Adaptive Intelligent Recovery Control  
starts to recover at 4:00 AM and reaches the comfort  
temperature of 68° at 7:00 AM. Recovery time varies  
with the starting temperature and the comfort tem-  
perature you choose.  
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At 7:00 AM System  
Operating in Comfort Mode  
AM  
SET  
PT  
P
TUE
At 6:00 AM  
Recovery  
Continues  
MORNING LE ULTOCE
AM  
PM  
SET  
PT  
TUE HEAT ON  
WAKE LEAVE RETURN NIGHT MPORARY UNOCCUIPIED  
At 5:00 AM  
Recovery  
Continues  
AM  
SET  
PT  
TUE HEAT ON  
E VENIGHT TERCE
At 4:00 AM  
Recovery Begins  
AM  
P
SET  
PT  
MON T
E VENIGHT TACE
ENERGY  
SAVINGS  
PERIOD  
COMFORT  
PERIOD  
RECOVERY FROM ENERGY SAVINGS  
TIME  
THE THERMOSTAT USES THE SAME SCHEME TO RETURN GRADUALLY  
TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON.  
M17033  
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NEAT STUFF YOU’LL BE USING OFTEN  
Setting Temporary Temperatures  
If your thermostat is set for 7-Day or 24-Hour Operation, you can override the current schedule period and  
change the temperature setting until the next schedule period, or change the temperature setting while you are  
on vacation. You can also change the temperature setting indefinitely.  
Changing Temperature Setting Until the Next Schedule Period  
NOTE: This feature does not apply to Constant Temperature Setpoint Programming.  
Press Increase ▲ or Decrease ▼ until the desired  
Temporary Setting  
temperature setpoint displays.  
M17035  
While selecting a temporary setting, only the setpoint displays.  
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The temporary temperature setting you select displays for approximately 3 seconds.The display reads  
Temporary until the next period begins, or you cancel the Hold.  
Run  
Program  
IMPORTANT  
Temporary  
To cancel the Hold before the designated  
time, press Run Program.  
AM  
Mon  
System  
Heat  
Fan  
Auto  
Heat  
M12984  
After selecting a temporary setting, display reads Temporary until canceled.  
Example displays shows temporary heat setting of 70° at 6:00 AM.  
NOTE: If “▲” or “▼” appears under the temperature display, it means that both the heating and cooling  
setpoints are being adjusted. Tapping the key changes both the heat and cool setpoints by one degree.  
Press  
after the desired setpoint is reached to verify the setpoints.  
NOTE: While in temporary operation, the thermostat uses conventional recovery for that period only. The  
thermostat assumes you desire to maintain the temporary setting until the end of the period.  
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Changing Temperature Setting Indefinitely  
NOTE: This feature does not apply to Constant Temperature Setpoint Programming.  
NOTE: The current time does not display while in this mode.  
1. Press Hold Temp once.  
Hold Temp  
Setting  
Heat  
System  
Heat  
Fan  
Auto  
M17040  
Pressing Hold Temp once displays the thermostat in Hold mode.  
Example displays shows temporary heat setting of 60°.  
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2. Press Increase ▲ or Decrease ▼ to  
Setting  
change the temperature setpoint, if desired.  
Heat  
System  
Heat  
Fan  
Auto  
M17041  
By pressing the Temperature keys, you can select a temporary temperature.  
This temperature setting remains until the hold is canceled.  
Example displays shows heat set to 61°.  
3. Press Heat/Cool Settings to change  
Heat/Cool  
Settings  
Setting  
between heat and cool settings.  
Cool  
Fan  
System  
Heat  
Auto  
M17042  
Pressing Heat/Cool Settings displays the other temperature setpoint.  
Example displays shows temporary cooling setting of 78°.  
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4. Press Increase ▲ or Decrease ▼ to adjust  
Setting  
temperature settings.  
Cool  
Fan  
System  
Heat  
Auto  
M17043  
Pressing the Temperature keys changes the temporary temperature.  
Example displays shows temporary cooling setting of 80°.  
NOTE: The display changes from the setpoint to the room temperature after approximately 3 seconds.  
Run  
Program  
IMPORTANT  
To cancel the Hold, press Run Program.  
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