XT300C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT
3
69-1212—1
Pub. No. 18-HD25D1-3
Using Thermostat Keys
The thermostat keys are used to:
•
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.
See Fig. 6 for keypad explanation.
SETTINGS
System and Fan Settings
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.
System settings control the thermostat operation as follows:
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.
Time
Set Program
System
Filter
Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return
Sleep
Day
Heat/Cool
Settings
Daylight
Time
Copy
INCREASE TEMPERATURE SETTING OR SCROLL
FORWARD THROUGH INSTALLER SETUP OPTIONS
DECREASE
TEMPERATURE
SETTING OR
SCROLL BACKWARD
THROUGH INSTALLER
SETUP OPTIONS
DISPLAY
INFORMATION
SUCH AS PRESENT
SETTINGS
AND OUTDOOR
TEMPERATURE
RETURN TO NORMAL
OPERATIONS
ENTER INDEFINITE
OR TIMED HOLD MODE
SET CURRENT
DAY AND TIME
SET CURRENT OR
PROGRAM DAY
CHANGE BETWEEN
DAYLIGHT SAVINGS
AND STANDARD TIME
INCREASE TIME
SETTING OR SCROLL
FORWARD THROUGH
INSTALLER SETUP
AND SYSTEM TEST
DECREASE TIME SETTING
OR SCROLL BACKWARD
THROUGH INSTALLER
SETUP AND SYSTEM TEST
COPY ONE
PROGRAMMED DAY
TO ANOTHER DAY
SET WAKE TIMES
AND SETPOINTS
CHANGE BETWEEN
HEATING AND
COOLING SETPOINTS
SET LEAVE TIMES
AND SETPOINTS
SET RETURN TIMES
AND SETPOINTS
SET SLEEP TIMES
AND SETPOINTS
M17118
SELECT SYSTEM
OPERATION (HEAT,
COOL, OFF, AUTO)
SELECT FILTER
EXPIRATION IN
NUMBER OF DAYS
SELECT FAN
OPERATION
Time
Set Program
System
Filter
Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return
Sleep
Day
Heat/Cool
Settings
Daylight
Time
Copy
M12957
Fan
Auto
Fan
On
Time
Set Program
System
Filter
Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return
Sleep
Day
Heat/Cool
Settings
Daylight
Time
Copy
M12956
System
System
Heat
Off
Auto
Cool
Fan settings control the system fan as follows:
On: Fan operates continuously.
Auto: Fan operates with equipment.
Fig. 6. XT300C key locations and descriptions.
Fig. 7. System key location and display.
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.
Temperature Settings
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.
Table 2. Default Program Settings.
Period
Time
Heat
Setpoint
Cool
Setpoint
Fan
Setting
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
Return
5:00 PM
70
°
F
(21
°
C)
78
°
F
(25.5
°
C)
Auto
Sleep
10:00 PM
62
°
F
(16.5
°
C)
82
°
F
(28
°
C)
Auto
