Fan − Controlling Fan Operation - Lennox ComfortSense L3722C Operation Manual

MONDAY PROGRAM: 72°
68°
64°
TUESDAY PROGRAM: 72°
68°
64°
WEDNESDAY PROGRAM: 72°
68°
64°
THURSDAY PROGRAM: 72°
68°
64°
FRIDAY PROGRAM: 72°
68°
64°
SATURDAY PROGRAM: 72°
68°
64°
SUNDAY PROGRAM: 72°
68°
64°
Figure 11. 7 Day Program Example
NOTE − Pressing the ENTER button during the following
programming steps, saves and exits to the HOME screen.
To program events and temperatures, perform the follow-
ing steps.
1. Press and release the PROG button. "MO" (Monday),
"AM 6:00", period "A", "COOL SETPOINT 78", and
"HEAT SETPOINT 70" are displayed. "AM 6" flashes.
2. Use the Up/Down arrow buttons to select the desired
hour; press the PROG button when the desired hour
is reached; use the Up/Down arrow buttons again to
select desired minute. The selected hour/minute is
when the program will start. Press the PROG button.
3. Use the Up/Down arrow buttons to select the desired
heat setpoint; press the PROG button.
4. Use the Up/Down arrow buttons to select the desired
cool setpoint; press the PROG button.
5. Repeat steps 1 − 4 for Monday, periods B, C, and D.
6. COPY A PROGRAM − If the program entered for
Monday is satisfactory for other days of the week, do
the following to repeat the same program for other
days:
A Press the PROG button, then press the COPY
button. The display clears the screen except for
Copy from MO with MO" flashing. Press the
COPY button again to copy Monday's program.
B The display changes to Copy to MO". Use the ar-
row buttons to scroll to the desired day where you
want the same program as Monday. Press the
COPY button.
C Repeat steps A and B for as many days as you
want the same program.
A
C
D
B
A
C
D
B
A C
D
B
A
C
D
B
A
C
D
B
C
A
B
D
A C
B
D
6AM NOON 6PM MID 6AM
NIGHT
Copy from MO
Figure 12. Copy a Programmed Day to Another
7. Repeat steps 1 − 5 to program different times and tem-
peratures for days not yet programmed.
FAN − Controlling the Fan Operation
Use the FAN button to select either continuous fan mode or
auto fan mode.
To change from continuous to auto fan mode (or vice ver-
sa), press the FAN button. Note whether a fan icon in the
FAN box is present (indicating that the fan is running) or not
(fan not running).
If continuous fan mode is enabled (ON displayed in FAN
box − see figure 13), the fan will run continuously regard-
less of whether the heating or cooling equipment is run-
ning.
72
Figure 13. Using Fan ON
If auto fan mode is selected (AUTO displayed in FAN box −
see figure 14), the fan will only run when the heating or
cooling equipment is running.
72
Figure 14. Using Fan AUTO
Page 5
Heat Cool
Prog Auto
Copy Day/Time
Fan Hold
Settings Enter
(outside)
Day
Heat Cool
Prog Auto
i0:30
Copy Day/Time
Fan Hold
Heat Cool
Prog Auto
i0:30
Copy Day/Time
Fan Hold
L3722C 7−DAY PROGRAMMABLE THERMOSTAT
(DOOR
OPEN)