Emerson 1F97-391 User Manual

Page of 52
35
Features
Compressor
Compressor
Compressor
Compressor
Compressor
Shor
Shor
Shor
Shor
Short-Cy
t-Cy
t-Cy
t-Cy
t-Cyc
c
c
c
cle Pr
le Pr
le Pr
le Pr
le Protection.
otection.
otection.
otection.
otection.
Your thermostat can be configured to
protect your system against premature
compressor failure by “locking out”
the compressor. This ensures that the
compressor will stay off for at least
five minutes on each cycle. When the
thermostat is in compressor lock-out,
the word 
COOL
 will flash. During this
period, the compressor will not be
energized. See installation and
configuration, page 18, step 6.
Air Filter
Air Filter
Air Filter
Air Filter
Air Filter
Chang
Chang
Chang
Chang
Change-Out Indica
e-Out Indica
e-Out Indica
e-Out Indica
e-Out Indicator
tor
tor
tor
tor.....
This feature allows the thermostat to
display the words 
CHNG FLTR
(change filter) after a set time of fan
operation. This is a reminder to change
or clean your air filter. The factory set
interval for 
CHNG FLTR
 to be
displayed is 200 hours of fan opera-
tion. This can be set anywhere from 0
to 1950 hours in 25 hour increments. A
selection of 
00
 will cancel this
feature.
When 
CHNG FLTR
 is displayed, you
can clear it by pressing the HUM/
FLTR SERVICE
 button. This resets
the timer and starts counting the hours
until the next filter change.
The following steps will allow you to
change the number of hours for filter
change-out.
1. If you see 
CHNG FLTR
 on the
display, press the HUM/FLTR
SERVICE
 button once to reset the
timer. If you do not see 
CHNG FLTR
proceed to step 2.
On a 7–Day thermostat, when the
HUM/FLTR SERVICE button is
pressed twice, the display will show
the number of hours remaining before
CHNG FLTR
 indicator will display.
2. Press the HUM/FLTR SERVICE
button. The display will show 
SET
FILTER TIME
 and will show the
number of hours to filter change.
3. Press TIME 
FWD
 or TIME 
BACK
to change the time to your require-
ments.
4. Press PROGRAM 
RUN
 to return
to the normal operating mode.
NOTE: If unsure what interval to use
between filter changes or cleaning,
contact the manufacturer of your
heating/cooling equipment.
System and
System and
System and
System and
System and
T
T
T
T
Ther
her
her
her
hermosta
mosta
mosta
mosta
mostat Dia
t Dia
t Dia
t Dia
t Diagnostics
gnostics
gnostics
gnostics
gnostics.....
The display will indicate 
CHECK
SYSTEM
 if the room temperature
does not rise within two hours of the
call for heat. After two hours the
thermostat will quit calling for heat for
one minute (this allows some furnaces
to reset) and call for heat again. It will