Lennox L7742U Programming And Application Manual page 39

Message
Type
Condition Display Text (Screen1)
Status Schedule OFF (User
turns off the schedule)
Status Temporary Hold On HOLD SETTING UNTIL
(User had set a Tempo-
rary hold on set points)
Status Compressor Protection
timer (5min) is running
Status FAN mode is set to
AUTO on home (follow
the schedule) and ON
in the current period of
schedule & (system is
not heating or cooling)
Status FAN mode is set to
AUTO on home (follow
the schedule) and
CIRC in the current pe-
riod of schedule &
(system is not heating
or cooling)
Display Text (Screen2)
SCHEDULE OFF
Date/Time
PRESS SCHED TO
Date/Time RESUME PROGRAM
WAIT
FAN ON
FAN CIRC
Priority System Action
3−Minor Message is displayed on first line for 3seconds.
3−Minor Message is displayed on the screen and system has a
temporary hold on temperature.
3−Minor Message is displayed on the screen whenever compressor
protection is running AND cooling/heating demand exists.
3−Minor Message is displayed on the first line of dot matrix
3−Minor Message is displayed on the first line of dot matrix
ComfortSenset Model L7742U Touch Screen 7−Day Programmable Thermostat
Page 39
Action to Clear / Recovery
Condition
Message will disappear after 3
seconds or if higher priority Error/
Reminder occurs
Message will disappear when user
hits SCHED or if higher priority Er-
ror/Reminder occurs
Message will disappear is com-
pressor protection run expires OR
there is no cooling or heating de-
mand.
The Message goes away if
1 − User changes FAN mode from
AUTO to ON or CIRC On home
2 − User changes FAN mode in the
schedule from ON to something
else
The Message goes away if
1 − User changes FAN mode from
AUTO to ON or CIRC On home
2 − User changes FAN mode in the
schedule from CIRC to something
else