TCONT900AC43UA Communicating,
Programmable Comfort Control
OWNER’S GUIDE
Pub No. 22-5211-02
69-1817-04
Page Contents
3Features
4Home Screen
6 Programming Your Heating and Cooling Schedule
14 Operating Your Comfort Control
21Cleaning Your Comfort Control Screen
22Reading Your Outdoor Temperature
26Reading Your Inside Humidity Level
27Controlling Your Inside Dehumidification Setting
29Controlling Your Inside Humidification Setting
34Advanced Settings
36User Setup Menu
47Error Codes
48Frequently Asked Questions and Answers
49Limited Five-Year Warranty
51Customer Assistance
IMPORTANT
The Comfort Control has a touch screen interface. Touch keys appear, as necessary, to complete tasks. Always press the keys with your fingertips. Sharp instruments like a pen or pencil point can damage the Comfort Control.
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22-5211-02 |
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69-1817—04 |
•Large, Clear Display with Backlighting – current temperature, set temperature and time are easy-to-read and all are displayed on the home screen.
•Menu Driven Programming – Guides you through the scheduling process, showing only necessary information and choices on each screen.
•Ability to Select Multiple Days – allows you to easily customize the Comfort Control for your unique schedule.
•Real-Time Clock – keeps time during power failure; automatically updates for daylight savings.
•Precise Temperature Control (+/- 1°F) (+/- .5°C) – reliable, consistent comfort.
•Multiple HOLD options – allows you to modify schedule indefinitely or for a specific time.
•Change Reminders – reminds you to service or replace the air filters and/or humidifier pad.
•Programmable Fan – increases air quality when combined with a whole-house air cleaner.
•Outdoor Temperature Indication – shows current outdoor temperature on the display to help you plan outdoor activities.
NOTE: The home screen may differ slightly, depending on the heating and/or cooling system you have and the Comfort Control settings for your system type.
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22-5211-02 |
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69-1817—04 |
Key Description
TUE
FAN |
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UP ARROW |
SELECTS ON/AUTO/CIRC |
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FAN |
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RAISES TEMPERATURE SETTING |
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Set To |
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AUTO |
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DOWN ARROW |
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Following |
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SELECTS EM. HEAT/HEAT/OFF/COOL/AUTO |
SYSTEM |
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LOWERS TEMPERATURE SETTING |
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Schedule |
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HEAT |
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AM |
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MORE (SELECT MODELS) |
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SCHED |
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HOLD |
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CLOCK |
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SCREEN |
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MORE |
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SHOWS ADDITIONAL SYSTEM |
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INFORMATION |
SCHED |
SCREEN |
ENTERS SCHEDULING MODE |
LOCKS OUT THE SCREEN TO ALLOW FOR CLEANING |
HOLD |
CLOCK |
SETS A PERMANENT HOLD AND |
SETS THE TIME FORWARD OR BACK |
ACTIVATES VACATION HOLD |
M19952 |
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69-1817—04 |
Display Description
TUE |
INSIDE TEMPERATURE |
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SHOWS CURRENT DAY OF THE WEEK |
SHOWS THE CURRENT INSIDE TEMPERATURE |
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SET TO TEMPERATURE |
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FAN |
SHOWS THE CURRENT |
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SET TEMPERATURE |
SHOWS FAN SETTING |
FAN |
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Set To |
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AUTO
SYSTEM |
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Following |
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SHOWS CURRENT SYSTEM POSITION |
SYSTEM |
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Schedule |
FOLLOWING SCHEDULE |
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HEAT |
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SHOWS THE THERMOSTAT IS |
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FOLLOWING THE PROGRAMMED |
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TIME |
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SCHEDULE |
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DISPLAY CURRENT TIME OF DAY, |
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HOLD TIME REMAINING OR NUMBER |
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SCHED |
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HOLD |
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CLOCK |
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OF VACATION DAYS REMAINING |
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M19953 |
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22-5211-02 |
5 |
69-1817—04 |
Your Comfort Control can control up to four different schedule periods per day: Wake – Period when you awaken and want your home at a comfortable temperature.
Leave – Period when you are away from home and want an energy-saving temperature. Return – Period when you return home and want your home back to a comfortable temperature. Sleep – Period when you are asleep and want an energy-saving temperature.
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69-1817—04 |
NOTE: Schedule times are in 15-minute intervals.
Preprogrammed Energy Star Settings
Table 1 shows default program settings. Visit the Energy Star web site at www.energystar.gov for additional education and resources on programmable Comfort Controls.
Table 1. Energy Star Default Program Settings.
Schedule Period |
Time |
Setpoints |
Fan Setting |
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Heat |
Cool |
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Wake |
6:00 AM |
70°F (21°C) |
78°F (25.5°C) |
Auto |
Leave |
8:00 AM |
62°F (16.5°C) |
85°F (29.5°C) |
Auto |
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Return |
6:00 PM |
70°F (21°C) |
78°F (25.5°C) |
Auto |
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Sleep |
10:00 PM |
62°F (16.5°C) |
82°F (27.8°C) |
Auto |
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22-5211-02 |
7 |
69-1817—04 |
1.Press Sched key.
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FRI |
FAN |
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Set |
Inside |
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AUTO |
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SYSTEM |
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Following |
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Schedule |
HEAT |
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AM |
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PM |
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SCHED |
HOLD |
CLOCK |
SCREEN |
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M22445 |
2.Press Edit key.
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TUE |
WED |
THU |
FRI |
SA |
SUN |
FAN |
OK TO PICK MULTIPLE DAYS |
SCREEN LOCKED |
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Set |
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HEAT |
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AUTO |
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SYSTEM |
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CANCEL |
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Following |
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EM HEAT |
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PERIOD |
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Schedule |
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HEAT |
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OFF |
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AM |
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COOL |
COOL |
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PM |
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AUTO |
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SCHED |
HOLD |
CLOCK |
SCREEN |
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DONE |
EDIT |
WAKE |
LEAVE |
RETURN |
SLEEP |
CANCEL |
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M22553 |
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22-5211-02 |
8 |
69-1817—04 |
3.It is OK to pick multiple days. Select any combination of days to edit. These days are scheduled with the same times and temperatures. Check marks appear next to days selected.
MON |
TUE |
WED |
THU |
FRI |
SAT |
SUN |
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OK TO PICK MULTIPLE DAYS |
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FAN |
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ON |
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AUTO |
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HEAT |
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CIRC |
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CANCEL |
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PERIOD |
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AM |
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COOL |
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DONE |
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WAKE |
LEAVE |
RETURN |
SLEEP |
CANCEL |
M19955
4.Press Wake key. Once pressed, Wake flashes to show it is selected.
5.Press Up and Down keys to modify time and heat and cool temperatures from this screen.
NOTE: The Fan setting can be programmed for On, Auto, or Circ for each period selected. See “Fan Schedule” on page 19 for more information.
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22-5211-02 |
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69-1817—04 |
6.Press Leave key and repeat step 5.
7.Press Return key and repeat step 5.
8.Press Sleep key and repeat step 5.
9.When complete, press Done key. “Saving Changes” appears on the screen to indicate changes are being saved to the day(s) modified.
MON |
TUE |
WED |
THU |
FRI |
SAVING
CHANGES
M19956
NOTE: To set a Program Schedule for the remaining days of the week, repeat steps 1-9. Example: If Mon - Fri was selected first, go back and repeat steps 1-9 for Sat and Sun.
10.To exit schedule without saving changes, press Cancel key any time.
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69-1817—04 |
NOTE: You may want to cancel a period to match your lifestyle; for example, if someone is always home during the day on Tuesday, you can cancel the Leave and Return periods (the Comfort Control would then control to the Wake temperature until the Sleep period).
1.Press Sched key.
2.Press Edit key.
3.Select the Day(s) of the week desired.
4.Press schedule period you want to cancel (Wake, Leave, Return or Sleep). Once selected, the period flashes.
5.Press Cancel Period key.
MON |
TUE |
WED |
THU |
FRI |
SAT |
SUN |
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OK TO PICK MULTIPLE DAYS |
SCREEN LOCKED |
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FAN |
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Inside |
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Set To |
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AUTO |
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HEAT |
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SYSTEM |
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CANCEL |
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Following |
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Schedule |
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EM HEAT |
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PERIOD |
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HEAT |
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OFF |
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AM |
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COOL |
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COOL |
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PM |
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AUTO |
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SCHED |
HOLD |
CLOCK |
SCREEN |
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DONE |
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WAKE |
LEAVE |
RETURN |
SLEEP |
CANCEL |
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M22446 |
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22-5211-02 |
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11 |
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69-1817—04 |
NOTE: Note that the time, temperature(s) and fan setting disappear. The bar above the selected period is removed, indicating the scheduled period was cancelled. To reinstate a schedule period, press arrow keys to set desired time and temperatures.
6.Press Done key.
MON |
TUE |
WED |
THU |
FRI |
SAT |
SUN |
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OK TO PICK MULTIPLE DAYS |
SCREEN LOCKED |
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FAN |
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Inside |
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Set To |
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AUTO |
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HEAT |
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SYSTEM |
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CANCEL |
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Schedule |
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PERIOD |
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EM HEAT |
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HEAT |
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OFF |
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COOL |
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COOL |
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PM |
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AUTO |
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SCHED |
HOLD |
CLOCK |
SCREEN |
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DONE |
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WAKE |
LEAVE |
RETURN |
SLEEP |
CANCEL |
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M22446 |
NOTE: When changing from non-programmable to programmable mode, the screen displays “Permanent Hold” under the time icon. This goes away when the schedule key is hit or the schedule menu is entered.
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69-1817—04 |
1.Press Clock.
2.Use arrows to set current time.
TUE |
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AM |
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PM |
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SCHED |
HOLD |
CLOCK |
SCREEN |
DONE |
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M19958 |
3.Press Done key.
IMPORTANT
The current day of the week should already be set correctly. If not, see “Advanced Settings” on page 34 to set the day.
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13 |
69-1817—04 |
SETTING FAN KEY
The Fan key selections vary based on your heating and/or cooling system type.
On – Fan runs continuously. Use this setting for improved air circulation or for more efficient central air cleaning. The Trane Proprietary Humidity Control might disable continuous fan function. See “Trane Proprietary Humidity Control” on page 28 for additional information.
Auto – Fan follows fan program schedule. See “Fan Schedule” on page 19 for more information. Circ – Circulation control will provide a variable circulation determined by the Adaptive Intelligent Circulation (AIC) algorithm running the fan between 20% and 60% of the time.
SETTING SYSTEM KEY
The System key selections vary based on your heating and/or cooling system type. Heat – Controls your heating system.
Off – Both heating and cooling systems are off. Cool – Controls your cooling system.
Auto (when enabled) – Controls both your heating and cooling system based on temperature. Em. Heat – Compressor is locked out and auxiliary heat cycles to maintain temperature. (Used only for heat pump systems with backup heat)
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69-1817—04 |
Your Comfort Control has three temperature override options: Hold Temperature Until, Permanent Hold and Vacation Hold.
HOLD TEMPERATURE UNTIL (TEMPORARY HOLD)
Holds temperature temporarily until the next scheduled period time or until the time the user sets.
1.Press Up or Down arrow next to the temperature you want to adjust. “Hold Temperature Until” time appears on the screen. The Hold Temperature Until time defaults to the start time of the next scheduled period.
NOTE: The Time Up and Down arrows are shown for approximately seven seconds. Pressing on the screen time (where the Hold Temperature Until time is shown) allows the arrows to reappear.
2.Press Up or Down arrow next to the Time key to set desired time for the Comfort Control to resume schedule.
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69-1817—04 |
3.Press the Cancel or Sched key to cancel “Hold Temperature Until” and resume schedule.
NOTE: Once “Hold Temperature Until” time is reached, the comfort control shows “Following Schedule” on the screen to indicate that “Temporary Hold” has ended.
PERMANENT HOLD
Permanent Hold changes the temperature setting until Permanent Hold is cancelled.
1.Press Hold key. “Permanent Hold” appears on the screen.
2.Press Up or Down arrow next to the temperature you want to set during “Hold”.
3.Press Cancel key to cancel “Permanent Hold” and resume the schedule.
NOTE: In ISU 0160, when changing from nonprogrammable to programmable mode, the screen displays “Permanent Hold” under the time icon. This goes away when the schedule key is hit or the schedule menu is entered.
16
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TUE |
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FAN |
Inside |
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Set |
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AUTO |
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SYSTEM |
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HEAT |
Hold Temperature |
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Until |
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PM |
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SCHED |
HOLD |
CLOCK |
SCREEN |
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CANCEL |
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M19959 |
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TUE |
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FAN |
Inside |
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Set To |
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AUTO |
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SYSTEM |
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HEAT |
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AM |
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Permanent |
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Hold |
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SCHED |
HOLD |
CLOCK |
SCREEN |
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CANCEL |
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M19960 |
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22-5211-02 |
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69-1817—04 |