Hold − Temperature Hold Mode; Prog − Thermostat Programming - Lennox L3711C Operation Manual

HOLD − Using Temperature Hold Modes
When HOLD is displayed at the HOME screen, the ther-
mostat is in a temperature hold condition. This means that
the temperature program data is ignored and the thermo-
stat functions much like a non−programmable thermostat.
Adjusting Temperature Setpoint in Hold Mode
The temperature setpoint represents the desired tempera-
ture of the space around the thermostat. The default heat
setpoint in hold mode is 70°F; the default cool setpoint in
hold mode is 78°F.
To adjust the setpoint, press the UP or DOWN (YB) arrow
buttons (see figure 8); the existing setpoint is displayed to
the right of the actual room temperature. Each button
press adjusts the setpoint up or down by 1 degree.
i0:30
78
80
70
Figure 8. Hold Temperature Mode
After the desired setpoint is reached, the HOME screen
will reappear after about 15 seconds.
Permanent Hold Mode
At any time the program is running, from the HOME
screen, set a permanent hold (program override) by press-
ing the HOLD button (see figure 8). The thermostat now
functions much like a non−programmable thermostat. Use
the Up/Down arrow buttons to adjust the hold setpoint. To
return to the program, press HOLD again.
Temporary (2-Hour) Hold
At any time the program is running, from the HOME
screen, set a temporary 2-hour hold by pressing the Up/
Down arrow buttons until the desired setpoint is displayed;
HOLD" flashes (see figure 9). This overrides the program
for 2 hours from the last button press, then returns to the
program.
While in Temporary Hold, press HOLD once to switch to
Permanent Hold (HOLD displays solid; PROG not dis-
played); press HOLD again to return to the program
(PROG displays; HOLD not displayed).
506072−01 02/08
Heat Cool
Prog Auto
Copy Day/Time
(DOOR
Fan Hold
OPEN)
Settings Enter
(Outside)
i0:30
70
72
68
Figure 9. Temporary Hold Temperature Mode
PROG − Thermostat Programming
The L3711C thermostat can be programmed to perform a
set of both heating and cooling events for each day of the
week. Each day can be programmed for 4 unique events
per day, and each day can be different from any other day.
To Set Program Events and Temperatures
Figure 10 gives an example of how up to 7 different pro-
grams can be set. Programs A and C reflect the desired
warmth while the home IS occupied (72°); B allows less
heating while the home is NOT occupied; D reflects a cool
sleeping temperature.
NOTE − The example in figure 10 shows heat setpoints; a
similar program may be set for cool setpoints.
MONDAY PROGRAM: 72°
TUESDAY PROGRAM: 72°
WEDNESDAY PROGRAM: 72°
THURSDAY PROGRAM: 72°
FRIDAY PROGRAM: 72°
SATURDAY PROGRAM: 72°
SUNDAY PROGRAM: 72°
Figure 10. 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.
Page 4
Heat Cool
Prog Auto
Copy Day/Time
Fan Hold
Settings Enter
(Outside)
A
C
68°
D
B
64°
68°
A
C
D
B
64°
68° A C
D
B
64°
A
68° C
D
B
64°
A
68°
C
D
B
64°
C
A
68°
B
D
64°
A C
68°
B
D
64°
6AM NOON 6PM MID
NIGHT
(DOOR
OPEN)
6AM