Trane XT302C Thermostat User Manual

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XT302C Deluxe Programmable  
Heat-Cool Thermostat  
18-HD25D7-5  
INSTALLER'S GUIDE  
APPLICATION  
The XT302C Deluxe Programmable Heat-Cool Thermostat provides electrnic control of 24 Vac single-zone multistage systems.  
Refer to Table 1 for a general description of the thermostat. This thermostat requires a common wire to supply power.  
Table 1. Description of XT302C.  
Model  
System  
Changeover System Selection Fan Selection  
Automatic Heat-Off-Cool-Auto On-Auto  
Comments  
XT302C Multistage  
System and fan selections are done by  
keyboard.  
Wallplate Installation  
RECYCLING NOTICE  
Position wallplate horizontally on the wall or on a 2 in. x 4 in.  
wiring box.  
If this thermostat is replacing a thermostat that  
contains mercury in a sealed tube, do not place your  
old thermostat in the trash.  
1. Position and level the wallplate for appearance only (the  
thermostat will function properly even when  
not level).  
Contact your local waste management authority for  
instructions regarding recycling and the proper  
disposal of the old thermostat.  
INSTALLATION  
YES  
NO  
When Installing this Thermostat...  
1. Read these instructions carefully. Failure to follow the  
instructions can damage the product or cause a  
hazardous condition.  
NO  
5 FEET  
[1.5 METERS]  
NO  
2. Check the ratings given in the instructions and on the  
product to make sure the product is suitable for your  
application.  
3. Installer must be a trained, experienced service  
technician.  
4. After completing installation, use these instructions  
to check out the product operation.  
M17106  
Location  
Fig. 1. Typical location of thermostat.  
Install the thermostat about 5 ft (1.5m) above the floor in an  
area with good air circulation at average temperature. See  
Fig. 1. Avoid installing the thermostat where it can be affected  
by the following:  
•
•
•
•
•
Drafts, or dead spots behind doors and in corners.  
Hot or cold air from ducts.  
Radiant heat from sun or appliances.  
Concealed pipes and chimneys.  
Unheated (uncooled) areas such as an outside wall  
behind the thermostat.  
® U.S. Registered Trademark  
Copyright © American Standard Inc. 1999  
69-1213-1  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
THERMOSTAT  
W1  
H
H
OT  
OT  
B
Y1  
Y2  
W2  
G
R
WALL  
WIRES  
THROUGH WALL  
OUTDOOR  
HUMIDISTAT  
OPENS ON RISE  
TAYSTAT253A  
TEMPERATURE  
SENSOR  
COMPRESSOR  
CONTACTOR 2  
HEAT  
STAGE 2  
TAYSENS100A  
HEAT  
STAGE 1  
COMPRESSOR  
CONTACTOR 1  
L1  
WALL  
ANCHORS  
(2)  
FAN  
(HOT)  
1
L2  
TRANSFORMER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
M17116  
Fig. 3. Typical hookup of XT302C in a heat cool system.  
MOUNTING  
HOLES  
MOUNTING  
SCREWS  
FOR STRAIGHT  
INSERTION STRIP  
5/16 IN. (8 MM).  
M15044  
FOR WRAPAROUND  
INSERTION STRIP  
7/16 IN. (11 MM).  
Fig. 2. Mounting the wallplate.  
M4826  
Fig. 4. Proper wiring technique.  
2. Use a pencil to mark the mounting holes. See Fig. 2.  
3. Remove the wallplate from the wall and drill two 3/16  
inch holes in the wall (if drywall) as marked. For firmer  
material such as plaster, drill two 7/32 inch holes.  
Gently tap anchors (provided) into the drilled holes until  
flush with the wall.  
Mounting Thermostat  
1. Engage tabs at the top of the thermostat and wallplate.  
See Fig. 5.  
4. Position the wallplate over the holes, pulling wires  
through the wiring opening.  
2. Press lower edge of case to close and latch.  
5. Loosely insert the mounting screws into the holes.  
6. Tighten mounting screws.  
NOTE: To remove thermostat from wall, first pull out at  
bottom of thermostat; remove top last.  
WIRING  
All wiring must comply with local electrical codes and  
ordinances. Refer to Fig. 3 for typical hookup diagram. A letter  
code is located near each terminal for identification.  
A. ENGAGE TABS  
AT TOP OF  
THERMOSTAT  
AND WALLPLATE.  
WARNING  
Electronic Shock or Equipment Damage Hazard.  
Can shock individuals or cause equipment  
damage.  
Disconnect power before wiring to prevent electrical  
shock or equipment damage.  
1. Loosen the terminal screws on the wallplate and  
connect the system wires. See Fig. 4.  
NOTE: Use 18 gauge, color-coded thermostat cable  
for proper wiring.  
B. PRESS LOWER  
EDGE OF CASE  
M17151  
TO LATCH.  
2. Securely tighten each terminal screw.  
3. Push excess wire back into the hole.  
4. Plug the hole with nonflammable insulation to  
prevent drafts from affecting the thermostat.  
Fig. 5. Mounting thermostat on wallplate.  
Pub. No. 18-HD25D7-5  
69-1213—1 (T8624)  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
DECREASE  
TEMPERATURE  
SETTING OR  
SET WAKE TIMES  
AND SETPOINTS  
INCREASE TEMPERATURE SETTING OR SCROLL  
FORWARD THROUGH INSTALLER SETUP OPTIONS  
SCROLL BACKWARD  
THROUGH INSTALLER  
SETUP OPTIONS  
INCREASE TIME  
SETTING OR SCROLL  
FORWARD THROUGH  
INSTALLER SETUP  
AND SYSTEM TEST  
DISPLAY  
INFORMATION  
SUCH AS PRESENT  
SETTINGS  
AND OUTDOOR  
TEMPERATURE  
SET CURRENT  
DAY AND TIME  
RETURN TO NORMAL  
OPERATIONS  
SET RETURN TIMES  
AND SETPOINTS  
SET CURRENT OR  
PROGRAM DAY  
Set Current  
Day/Time  
Run  
Leave  
Wake  
Return  
Sleep  
Fan  
SET SLEEP TIMES  
AND SETPOINTS  
Program  
ENTER INDEFINITE  
OR TIMED HOLD MODE  
Set Program  
Time  
Copy  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
SET LEAVE TIMES  
AND SETPOINTS  
DECREASE TIME SETTING  
OR SCROLL BACKWARD  
THROUGH INSTALLER  
Daylight  
Time  
SELECT FAN  
OPERATION  
SETUP AND SYSTEM TEST  
CHANGE BETWEEN  
DAYLIGHT SAVINGS  
AND STANDARD TIME  
COPY ONE  
PROGRAMMED DAY  
TO ANOTHER DAY  
CHANGE BETWEEN  
HEATING AND  
COOLING SETPOINTS  
SELECT FILTER  
EXPIRATION IN  
NUMBER OF DAYS  
SELECT SYSTEM  
OPERATION (HEAT,  
COOL, OFF, AUTO)  
M17118  
Fig. 6. XT302C key locations and descriptions.  
System settings control the thermostat operation as follows:  
Using Thermostat Keys  
The thermostat keys are used to:  
Heat:The thermostat controls the heating.  
Off: Both the heating and cooling are off.  
Cool:The thermostat controls the cooling.  
Auto:The thermostat automatically changes between  
heating and cooling operation, depending on the indoor  
temperature.  
•
•
•
•
•
•
•
•
•
Set current day and time,  
Program times and setpoints for heating and cooling,  
Temporarily override program temperatures,  
Display present setting,  
Configure Installer Setup,  
Check Self-Test,  
Display outdoor temperature (optional accessory),  
Set the system operation, and  
Set the fan operation.  
Run  
Set Current  
Day/Time  
Wake  
Leave  
Return  
Sleep  
Fan  
Program  
Time  
Copy  
Set Program  
System  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
System  
Heat Off Cool  
Auto  
See Fig. 6 for keypad explanation.  
Daylight  
Time  
M12956  
Fig.7. System key location and display.  
SETTINGS  
Fan settings control the system fan as follows:  
On: Fan operates continuously.  
System and Fan Settings  
Auto: Fan operates with equipment.  
The system default setting is Heat and the fan default setting  
is Auto. Use the System and Fan keys to change the settings.  
See Figs. 7 and 8. The fan settings can be set for each  
program period individually. The system selection is for all the  
program periods.  
Run  
Set Current  
Day/Time  
Wake  
Leave  
Return  
Sleep  
Fan  
Program  
Time  
Copy  
Set Program  
Fan  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
Fan  
OnAuto  
Daylight  
Time  
M12957  
Fig. 8. Fan key location and display.  
NOTE: Always press the keys with your fingertip or similar  
blunt tool. Sharp instruments like a pen or pencil  
point can damage the keyboard.  
Pub. No. 18-HD25D7-5  
69-1213—1 (T8624)  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
Temperature Settings  
INSTALLER SETUP  
Refer to Table 2 for the default program. For 7-Day and  
24-Hour Operation, the settings are the same for each day of  
the week. Refer to the Owners Guide, Pub. No. 22-5127-04,  
for instructions on changing the default settings.  
The Installer Setup is used to customize the thermostat for  
specific systems. Some of the options include Comfort-R™  
control activation, Fahrenheit vs. Centigrade temperature  
display, outdoor temperature display (requires outdoor  
sensor installation), and system changeover. Installer Setup  
numbers are listed in Table 3. The table includes all the  
configuration options and the factory-settings for the  
XT302C Deluxe Programmable Multistage Thermostat .  
Table 2. Default Program Settings.  
Heat  
Setpoint  
Cool  
Setpoint  
Fan  
Setting  
Period  
Wake  
Time  
6:00 AM  
70°F  
78°F  
(25.5°C)  
Auto  
Auto  
Auto  
Auto  
NOTE: For most applications, the thermostat factory-  
settings apply. Review the factory settings in Table 2  
and if no changes are necessary, go to the Installer  
Self-Test section.  
(21°C)  
Leave  
Return  
Sleep  
8:00 AM  
5:00 PM  
62°F  
(16.5°C)  
85°F  
(29.5°C)  
70°F  
(21°C)  
78°F  
(25.5°C)  
IMPORTANT  
The chart CustomizingYour Thermostat found in the  
beginning of the Owners Guide (see Fig. 9) must be  
completed. The homeowner identifies the options  
you install by referring to this chart.  
10:00 PM 62°F  
(16.5°C)  
82°F  
(28°C)  
The Leave, Return and Sleep periods may be cleared. For  
example, the daytime energy-savings period (from Leave to  
Return) may not be used by the homeowner. To clear any  
period, follow the instructions in the Owners Guide in the  
Clearing Schedule Period section.  
Installer Setup Procedure  
1. Press and hold the Information  
, Increase ▲,  
and Decrease ▼ keys at the same time until all display  
segments and the first setup number displays  
(all display segments appear for approximately three  
seconds before the setup number displays). See  
Figs. 11 and 12.  
Comfort-R™  
CONTROL  
OFF  
ON  
ON  
OFF  
Adaptive  
Intelligent  
Recovery™  
CONTROL  
(CONVENTIONAL  
RECOVERY)  
(A HONEYWELL  
TRADEMARK)  
Temporary Setting Enrg  
Sav  
Set Program Start Time Set Day/Time  
Hold for  
Em Ht  
AM  
PM  
COOLING  
DROOP  
ON  
OFF  
Room  
Aux Ht  
MonTueWedThuFriSatSun  
Heat Cool  
Outdoor  
Auto Repl Batt  
Fan  
TEMPERATURE  
DISPLAY  
FARENHEIT (°F)  
CENTIGRADE (°C)  
WakeLeaveReturnSleep In Recovery  
System  
Heat OffCool Auto Wait  
DST  
24-HOUR  
CLOCK FORMAT  
24-HOUR  
CLOCK FORMAT  
CLOCK  
FORMAT  
OnAuto  
Em  
M17111  
SYSTEM  
SETTING  
(HEATING  
AND  
COOLING  
SETTING)  
MANUAL ONLY  
(YOU SELECT  
HEAT, COOL  
OR OFF.)  
AUTO ONLY  
(SYSTEM  
AUTOMATICALLY  
SELECTS HEAT  
OR COOL)  
AUTO/MANUAL  
(SYSTEM  
AUTOMATICALLY  
SELECTS  
HEAT OR COOL;  
YOU CAN  
Fig. 10. Display of all the segments of the LCD.  
SELECT HEAT,  
COOL OR OFF.)  
OUTDOOR  
TEMPERATURE  
DISPLAY  
NO OUTDOOR  
TEMPERATURE  
IS DISPLAYED  
NO OUTDOOR  
TEMPERATURE  
IS DISPLAYED  
FACTORY SETTING OR OTHER  
CHOICE DISPLAY (COLUMN 3  
INSTALLER SETUP  
NUMBER DISPLAY  
(COLUMN 2 OF TABLE 3)  
CONSTANT  
TEMPERATURE  
SETPOINT  
PROGRAMMING  
7-DAY  
PROGRAMMING  
24-HOUR  
PROGRAMMING  
OR 5 OF TABLE 3)  
M10349  
M17110  
PROGRAMMING  
Fig. 11. Display of Installer Setup number and option.  
Figure 9. CustomizingYour Thermostat chart,  
from Owners Guide, Pub. No. 22-5127-04.  
Pub. No. 18-HD25D7-5  
69-1213—1 (T8624)  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
IMPORTANT  
Only configurable numbers display. Example: Installer  
—
—
—
To advance to the next Installer Setup, press Time ▲ .  
To change a setting, press Increase ▲ or Decrease ▼.  
To scroll the Installer Setup numbers backwards, press  
Time ▼.  
Setup Number 1 does not display because it is not  
configurable. Review the factory settings in Table 3  
and make any desired changes in the Actual Settings  
column.When the Installer Setup is complete, review  
the settings to confirm that they match the system and  
the boxes you checked in the CustomizingYour  
Thermostat chart located in the Owners Guide.  
—
To exit the Installer Setup, press Run Program.  
CAUTION  
Equipment Damage Hazard.  
Can cause permanent equipment damage.  
Electric heat systems must be configured to 1 in  
Installer Setup number 2 to prevent equipment damage  
caused by the system running without the fan.  
Table 3. Installer Setup Options for the XT302C.  
Press Time  
▲ or ▼  
Installer  
Press Increase ▲ or Decrease ▼ to change setting  
Factory Setting Other Choices  
Display Description Description  
Actual  
Setup Number  
Setting  
Select  
Display  
Programming  
42  
0
7-day programming  
1 or 2  
1—24-hour programming  
2—No programming  
Press Time ▼ to  
bypass 2–41  
and go directly  
to setup #42  
Fan operation  
2
0
Conventional  
1
Applications where  
thermostat controls fan  
operation in heat mode  
applications where  
equipment controls  
fan operation in heat  
mode  
Number of  
heating Stages  
3
4
2
3
2 heating stages  
0 or 1  
0—no heating  
1—1 heating stage  
Stage 1 heating  
3—3 cph  
recommended 5, 6, or  
9 cph not  
5, 6, or 9 5—5 cph  
6—6 cph  
rate  
cycle  
9—9 cph  
recommended  
Stage 2 heating  
rate  
5
8
5
5—5 cph  
3, 6, or 9 3—3 cph  
6—6 cph  
cycle  
recommended  
3, 6, or 9 cph not  
recommended  
9—9 cph  
Number of  
Cooling Stages  
1
3
1 cooling stage  
0 or 2  
2 or 5  
0—no cooling  
2—2 cooling stages  
Stage 1 cooling 9  
cycle rate  
3—3 cph  
2—2 cph  
5—5 cph  
recommended  
2 or 5 cph not  
recommended  
Stage 2 cooling 10  
cycle rate  
3
0
3—3 cph  
2 or 5  
1 or 2  
2—2 cph  
5—5 cph  
recommended  
2 or 5 cph not  
recommended  
System setting 12  
adjustment  
Auto changeover  
1—Manual changeover  
2—Auto changeover only  
(continued)  
Pub. No. 18-HD25D7-5  
69-1213—1 (T8624)  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
Table 3. Installer Setup Options for the XT302C (continued).  
Press Time  
▲ or ▼  
Installer  
Press Increase ▲ or Decrease ▼ to change setting  
Factory Setting Other Choices  
Display Description Description  
Actual  
Setup Number  
Setting  
Select  
Adaptive  
Intelligent  
Recovery™  
control  
Display  
13  
0
Adaptive Intelligent  
Recovery (a  
1
Conventional recovery  
(system starts recovery at  
programmed time)  
Honeywell trademark)  
control is activated  
(system starts early so  
setpoint is reached by  
start of program  
period)  
Degree  
temperature  
display  
14  
0
Temperature displays  
in °F  
1
1
Temperature displays in °C  
Clock format  
16  
19  
0
0
12-hour clock format  
24-hour clock format  
Extended fan  
operation in  
No extended fan  
operation after the call  
for heat ends  
1, 2 or 3 1—Fan operation extends  
30 seconds after the call  
ends.  
a
heating  
2—Fan operation extends  
60 seconds after the call  
ends.  
3 —Fan operation extends  
90 seconds after the call  
ends.  
Extended fan  
operation in  
cooling  
20  
0
No extended fan  
operation after the  
call for cool ends  
1, 2 or 3 1—Fan operation extends  
30 seconds after the call  
ends.  
2—Fan operation extends  
60 seconds after the call  
ends.  
3 —Fan operation extends  
90 seconds after the call  
ends.  
Outdoor  
24  
0
No outdoor  
temperature displays  
1
Outdoor temperature  
displays. Requires a  
TAYSENS100A Outdoor  
Sensor.  
temperature  
display (select  
models)  
Comfort-R  
Enable  
28  
30  
0
4
No fan delay  
1 or 2  
1—30 seconds  
2—15 seconds  
Minimum  
Deadband  
Between  
Heating and  
Cooling in Auto  
Changeover  
Mode  
Heating and cooling  
setpoints can be set  
no closer than 4°F  
(2°C)  
3 thru 10 Heating and cooling  
setpoints can be set no  
closer than the chosen  
value:  
3—3°F (1.5°C)  
4—4°F (2°C)  
5—5°F (2.5°C)  
6—6°F (3°C)  
7—7°F (3.5°C)  
8—8°F (4°C)  
9—9°F (4.5°C)  
10—10°F (5°C)  
Minimum On  
Time (Heat)  
32  
5
5-minute minimum on 0 thru 15 Minimum number of minutes  
time for compressor  
(0 thru 15) the compressor  
will be on during call for  
heat  
(continued)  
Pub. No. 18-HD25D7-5  
69-1213—1 (T8624)  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
Table 3. Installer Setup Options for the XT302C (continued).  
Press Time  
▲ or ▼  
Installer  
Press Increase ▲ or Decrease ▼ to change setting  
Factory Setting Other Choices  
Description Description  
10-minute minimum on 0 thru 15 Minimum number of minutes  
Actual  
Setup Number  
Setting  
Select  
Display  
Display  
Minimum On  
Time (Cool)  
33  
10  
time for compressor  
(0 thru 15) the compressor  
will be on during call for  
cool  
Temperature  
range stops in  
heating  
34  
35  
37  
85  
65  
0
Highest setpoint  
heating can be set to  
55 to 85 Temperature range (1°F  
increments) heating  
setpoint can be set to  
Temperature  
range stops in  
cooling  
Lowest setpoint  
cooling can be set to  
65 to 99 Temperature range (1°F  
increments) cooling  
setpoint can be set to  
Temperature  
display  
adjustment  
No difference  
in displayed  
temperature and  
actual room  
3, 2, 1, -1, 3—Display adjusts to 3°F  
-2, or  
-3  
higher than actual room  
temperature  
2—Display adjusts to 2°F  
higher than actual room  
temperature  
temperature  
1—Display adjusts to 1°F  
higher than actual room  
temperature  
-1—Display adjusts to 1°F  
lower than actual room  
temperature  
-2—Display adjusts to 2°F  
lower than actual room  
temperature  
-3—Display adjusts to 3°F  
lower than actual room  
temperature  
Minimum Off  
Time (Heat)  
38  
39  
5
5
5 minute minimum off 0 thru 15 Minimum number of minutes  
time for the  
compressor  
(0 thru 15) the compressor  
will be off between calls for  
heat  
Minimum Off  
Time (Cool)  
5 minute minimum off 0 thru 15 Minimum number of minutes  
time for the  
compressor  
(0 thru 15) the compressor  
will be off between calls for  
cool  
Cooling Droop 41  
1
0
Cooling droop  
activated  
0
No cooling droop  
Programming  
42  
7-day programming  
1 or 2  
1—24-hour programming  
2—No programming  
Press Time ▼ to  
bypass 2–41  
and go directly  
to setup #42  
IMPORTANT  
Setting Current Day and Time  
Review the settings to confirm that they match the  
system. Press Run Program to exit the Installer  
Setup. The thermostat saves the Installer Setup  
changes and initiates a reset in order to operate  
using the new settings.  
1. Press Set Current Day/Time.  
Set Day/Time  
PM  
Run  
Program  
Set Current  
Day/Time  
Wake  
Leave  
Return  
Sleep  
Fan  
Mon  
Set Current  
Day/Time  
Time  
Copy  
Set Program  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
NOTE: For initial installations only, set the current day and  
time following the setup reset.  
Daylight  
Time  
M12951  
NOTE: On initial power up or after an extended power loss,  
1:00 pm flashes on the display until a key is pressed.  
Pub. No. 18-HD25D7-5  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
2. Press Day until the current day displays.  
To start the self-test:  
Press and hold the Increase ▲ and Decrease ▼ keys at the  
same time until all display segments and the number 10  
appears (all displays segments appear for approximately  
three seconds before the test number displays). See  
Figs. 12 and 13.  
Set Day/Time  
PM  
Run  
Set Current  
Day/Time  
Wake  
Leave  
Return  
Sleep  
Fan  
Tue  
Program  
Time  
Copy  
Set Program  
Day  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
Daylight  
Time  
M12952  
NOTE: Sun=Sunday, Mon=Monday, Tue=Tuesday,  
Table 4.Tests Available InThe Installer Self-Test.  
Wed=Wednesday, Thu=Thursday, Fri=Friday,  
Sat=Saturday.  
Test  
Number  
Self-Test Description  
Heating Equipment  
3. Press Time ▲ or Time ▼ until the current time displays.  
10  
Time  
30  
Cooling Equipment  
Fan Equipment  
Set Day/Time  
AM  
40  
Run  
Set Current  
Day/Time  
Leave  
Return  
Sleep  
Fan  
Tue  
Wake  
Program  
Time  
Copy  
Set Program  
Heat/Cool  
Settings  
50  
Comfort-R Terminals (H-H)  
Keyboard Operation  
Device Information  
Hold Temp  
Day  
Filter  
System  
Daylight  
Time  
M12953  
60  
70  
NOTE: Tapping the Set Current Day/Time will change the  
time in one hour increments.  
NOTE: If the current time is Daylight Savings Time, press  
Temporary Setting Enrg  
Set Program Start Time Set Day/Time  
DaylightTime until DST displays.  
Sav  
Hold for  
Em Ht  
AM  
PM  
Room  
Aux Ht  
Set Day/Time  
Mon  
TueWedThuFriSatSun  
Heat Cool  
Outdoor  
AM  
WakeLeaveReturnSleep In Recovery  
Auto Repl Batt  
Fan  
Run  
Set Current  
Day/Time  
System  
DST  
Wake  
Leave  
Return  
Sleep  
Fan  
Tue  
Daylight  
Time  
Pror
Time  
Copy  
Set Program  
Heat/Cool  
Settings  
Hold Temp  
ay  
Filter  
System  
OffCool Auto Wait  
OnAuto  
Em Heat  
DST  
Daylight  
Time  
M17111  
M12954  
Fig. 12. Display of all the segments of the LCD.  
4.  
Press Run Program.  
AM  
Room  
Run  
Set Current  
Day/Time  
Tue  
Wake  
System  
Heat  
Wake  
Leave  
Return  
Sleep  
Fan  
Run  
Program  
Program  
Time  
Copy  
Set Program  
Heat/Cool  
Settings  
Hold Temp  
Day  
Filter  
System  
DST  
Fan  
Auto  
Daylight  
Time  
M12955  
M10257A  
TEST NUMBER  
INSTALLER SELF-TEST  
Fig. 13. Display of test number.  
Use the Installer Self-Test to check the thermostat operation.  
Refer to Table 4 for a list of the available self-tests.  
Refer to Table 5 for the directions and results of the specific tests.  
NOTE: Press Time ▲ to advance to the next test and Time ▼  
to go back to the previous test. Press Run Program to  
exit the self-test. This mode times out 5 minutes after  
the last key press.  
CAUTION  
Equipment Damage Hazard.  
Equipment damage can occur if the compressor  
is cycled too quickly.  
The minimum off time is deactivated during the  
Installer Self-Test.  
Perform the test so that the compressor is cycled  
slowly.  
NOTE: Press Time ▼ to return to the previous test or Time ▲  
to advance to the next test.  
NOTE: To exit, press Time ▲ or Time ▼ then Run Program.  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
Table 5. Installer Self-Test Options.  
Key to  
Press  
Test  
Number  
Description  
Heating Equipment Self-Test (10)  
Time ▲  
Temp ▲  
Temp ▲  
Temp ▼  
Temp ▼  
10  
11  
12  
11  
10  
Enter heating equipment self-test.  
First stage heat turns on. When Installer Setup number 2 is 1, the system fan is also energized.  
Second stage heat turns on.  
Second stage heat turns off.  
First stage heat turns off.  
Cooling Equipment Self-Test (30)  
Time ▲  
Temp ▲  
Temp ▲  
Temp ▲  
Temp ▼  
30  
31  
32  
31  
30  
Enter cooling equipment self-test.  
First stage cool and fan turn on.  
Second stage cool turns on.  
Second stage cool turns off.  
First stage cool and fan turn off.  
Fan Equipment Self-Test (40)  
Time ▲  
Temp ▲  
Temp ▼  
40  
41  
40  
Enter fan equipment self-test.  
Fan turns on.  
Fan turns off.  
Comfort-R Terminals Self-Test (50)  
Temp ▲  
Temp ▼  
50  
51  
Enter Comfort-R self-test.  
Reads HH terminals. If the terminals are open and Comfort-R is enabled, display reads  
% humidity. If the terminals are closed no % humidity displays.  
Keyboard Operation Self-Test (60)  
Time ▲  
Temp ▲  
Temp ▼  
Day  
60 7  
60 9  
60 8  
60 11  
60 12  
60 3  
60 10  
60 1  
Enter keyboard operation self-test.  
Increase test number displays.  
Decrease test number displays.  
Day test number displays.  
Copy  
Copy test number displays.  
System  
Fan  
System test number displays.  
Fan test number displays.  
Set  
Set Current Day/Time test number displays.  
Current  
Day/Time  
Run  
Program  
60 15  
60 19  
Run Program test number displays.  
Daylight Time test number displays.  
Heat/Cool Settings test number displays.  
Daylight  
Time  
Heat/ Cool 60 5  
Settings  
Wake  
Leave  
Return  
Sleep  
Filter  
i
60 0  
Wake test number displays.  
Leave test number displays.  
Return test number displays.  
Sleep test number displays.  
Filter test number displays.  
Information test number displays.  
60 14  
60 16  
60 2  
60 17  
60 13  
Device Information Self-Test (70) - Refer to following section.  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
4. Press Increase ▲ again to display the software revision  
DEVICE INFORMATION  
SELF-TEST (70)  
number (Example: 001=Revision number 1).  
1. Press Temp ▲ and ▼ keys simultaneously, then press  
Time ▼ to access the thermostat information.  
M10229  
5. Press the Increase ▲ again to display the model  
identification number. (Example: 314 = Model ID 314)  
M4934  
2. Press Increase ▲ to display the production date code  
in a 3-digit format. The first two digits represent the  
month and the third digit represents the last digit of the  
year (Example: 128=December 1998).  
M4933A  
6. Press Run Program to exit the self-test. The self-test  
mode times out 5 minutes after the last key press.  
CHECKOUT  
M17112  
3. Press Increase ▲ again to display the software  
identification code.  
Outdoor Temperature Sensor  
(optional accessory)  
(Example: 200 = software ID code 200)  
Expose the outdoor temperature to outdoor air for a minimum  
of five minutes before reading.  
M17113  
TROUBLESHOOTING GUIDE  
Symptom  
Possible Cause  
Action  
Display will not come Thermostat is not being Check for 24 Vac between R and W terminals.  
on.  
powered.  
Check if the circuit breaker is tripped—reset the circuit breaker.  
Check if the system fuse is blown—replace the fuse.  
Check if the power switch on the HVAC equipment is in the  
Off position—set to the On position.  
Check wiring between thermostat and HVAC equipment—replace any  
broken wires and tighten any loose connections.  
If 24 Vac is present, proceed with troubleshooting.  
Temperature display is Room temperature  
Enter Installer Setup number 37 and reconfigure the display.  
incorrect.  
display has been  
reconfigured.  
Thermostat is configured Enter Installer Setup number 14 and reconfigure the display.  
for °F or °C display.  
Bad thermostat location. Relocate the thermostat.  
Temperature  
displaying digits as  
dashes (---).  
Internal temperature  
measurement failure.  
Contact distributor or retailer.  
The upper or lower  
temperature limits were  
reached.  
Check the temperature setpoints:  
Heating limits are 55 to 85°F (13 to 29°C).  
Cooling limits are 65 to 99°F (18 to 37°C).  
Temperature settings  
will not change.  
(Example:  
Cannot set the  
heating higher or the  
cooling lower.)  
The setpoint temperature Check Installer Setup numbers 34 and 35 and reconfigure the  
range stops were  
configured.  
setpoint stops.  
(continued)  
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XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT  
TROUBLESHOOTING (Continued).  
Symptom  
Heating will not come No power to the  
on. thermostat.  
Possible Cause  
Action  
Check for 24 Vac between R and W terminals.  
If missing 24 Vac:  
Check if the circuit breaker is tripped—reset the circuit breaker.  
Check if the system fuse is blown—replace the fuse.  
Check if the power switch on the HVAC equipment is in the Off  
position—set to the On position.  
Check wiring between thermostat and HVAC  
equipment—replace any broken wires and tighten any loose  
connections.  
If 24 Vac is present, proceed with troubleshooting.  
Heating will not come Thermostat minimum off Wait up to five minutes for the system to respond.  
on.  
time is activated.  
System selection is not  
set to Heat.  
Set system selection to Heat.  
Heating setpoint is below Check heating setpoint. Set heating setpoint to desired temperature.  
room temperature.  
Cooling will not come No power to the  
Check for 24 Vac between R and W terminals.  
If missing 24 Vac:  
on.  
thermostat.  
Check if the circuit breaker is tripped—reset the circuit breaker.  
Check if the system fuse is blown—replace the fuse.  
Check if the power switch on the HVAC equipment is in the  
Off position—set to the On position.  
Check wiring between thermostat and HVAC equipment—replace any  
broken wires and tighten any loose connections.  
If 24 Vac is present, proceed with troubleshooting.  
Thermostat minimum off Wait up to five minutes for the system to respond. Enter Installer Setup  
time is activated.  
number 39. Reconfigure minimum off time (if required).  
System selection is not  
set to Cool.  
Set system selection to Cool.  
Cool setpoint is above  
room temperature.  
Check cooling setpoint. Set cooling setpoint to desired temperature.  
Add resistor in parallel with load or install interface relay.  
Heating or cooling  
Heat or cool circuit is  
come on momentarily opening up or becoming  
and shut off  
high impedance.  
Heating equipment turns Wait a minute after seeing the on indicator and then check the registers.  
System on indicator  
(flame=heat,  
on the fan when the  
furnace has warmed up  
to a setpoint.  
snowflake=cool)  
displays, but no  
warm or cool air is  
coming from the  
registers.  
Heating or cooling  
equipment is not  
operating.  
Verify operation of heating or cooling equipment in self-test.  
Option not activated.  
Enter Installer Setup number 24 and set to 1. Thermostat must have OT  
terminals and a TAYSENS100A installed.  
Outdoor temperature  
not displayed  
or is incorrect.  
Outdoor sensor is  
connected incorrectly.  
Refer to TAYSENS100A installation instructions and check wiring  
between the thermostat and sensor.  
Wrong sensor.  
Filter expired.  
Replace sensor with TAYSENS100A sensor.  
Refer to the Filter Indication section in the Owner’s Guide, Pub.  
No. 22-5127-04  
System on indicator  
reads Filter and  
Filter expired.  
Refer to the Filter Indication section.  
backlight is flashing.  
Time displaying digits Internal memory failure.  
as three E’s (EEE).  
Contact distributor or retailer.  
Pub. No. 18-HD25D7-5  
69-1213—1 (T8624)  
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American Standard Inc.  
Troup Highway  
Tyler, TX 75711-9010  
69-1213—1 T. C. Rev. 1-99  
Printed in Taiwan R.O.C.  

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