Lennox L7742U Programming And Application Manual page 11

F/C default is Fahrenheit; to change to Celsius, scroll to F/C; press
ENTER. Use arrows to change to C; press SAVE.
F OR C
DEFAULT(F)
12 OR 24 HOUR clock default is 12H; to change, scroll to 12 OR 24
HOUR; press ENTER. Use arrows to change to 24H; press SAVE.
12 OR 24 HOUR
DEFAULT(12HR) 12H
EVENTS DAILY 2 OR 4 default is 4; to change, scroll to EVENTS
DAILY 2 OR 4; press ENTER. Use arrows to change to 2; press SAVE.
EVENTS DAILY 2 OR 4
DEFAULT(4)
DISPLAY INFO controls some of what is displayed in the field below
the temperature and above the time on the HOME screen; it may dis-
play OUTDOOR TEMP, INDOOR RH (relative humidity), or neither if
TEMP and RH are turned OFF. Scroll to DISPLAY INFO; press EN-
TER. Use arrows to select TEMP or RH; press ENTER.
DISPLAY INFO
OUTDOOR TEMP
INDOOR RH
NOTE − When accessing the OUTDOOR TEMP option OUT-
DOOR SENSOR REQUIRED" will display if not turned ON in the
installer settings. The home screen will display NO OUTDOOR
SENSOR" if the physical sensor is not installed.
For INDOOR RH, use arrows to select ON or OFF; then press SAVE.
INDOOR RH
DEFAULT(OFF)
F
2
ON
For OUTDOOR TEMP, select ON or OFF; then press SAVE.
OUTDOOR TEMP
DEFAULT(OFF)
HUMIDITROL ADJUST If Humiditrol is enabled in the installer set-
tings, then this adjustment affects overcooling operation. Overcooling
ranges from 2ºF below the cooling setpoint (MIN setting) down to 2ºF
above the heating setpoint (MAX setting). Halfway between the two
settings is the MID setting. The default setting is MAX; to change to MID
or MIN, scroll to HUMIDITROL ADJUST; press ENTER. Use arrows to
scroll to MID or MIN; then press SAVE.
HUMIDITROL ADJUST
DEFAULT (MAX)
NOTE − Humiditrol does not function if the outdoor temperature is 95ºF
or greater nor when t he indoor temperature is 65ºF or less.
FAN CIRCULATE As an option to running the fan all the time, CIRCu-
late allows the user to decide how much the fan will run during periods of
equipment inactivity. The fan ON time is always set to 5 minutes. This
option will cause the fan to come on more or less frequently. The default
is 35%; to change, scroll to FAN CIRCULATE; press ENTER. Use ar-
rows to change to 15, 25, or 45%; press SAVE.
FAN CIRCULATE
DEFAULT(35%)
15% (9 minutes fan run time per hour)
25% (15 minutes fan run time per hour)
35% (21 minutes fan run time per hour)
45% (27 minutes fan run time per hour).
ComfortSenset Model L7742U Touch Screen 7−Day Programmable Thermostat
Page 11
ON
MIN
25%