Emerson 1F97-391 Thermostat User Manual


 
31
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The large numbers and letters on your
LCD screen make it easy to see. In low
light conditions, press the button on
top of the thermostat and the display
will light up for three seconds. For ten
minutes after pressing the light button,
pressing any other button will light the
display for ten seconds. The display
light uses power from the 3 “AA”
alkaline batteries installed. Excessive
use of the display light will reduce
battery life.
FF
FF
F
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y Pry Pr
y Pr
ee
ee
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prpr
prpr
pr
oo
oo
o
gg
gg
g
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This thermostat has been programmed
at the factory. The chart in the
programming examples section lists
these factory settings. If the times and
temperatures are the same as your
schedule, you may simply run the
factory installed program by pressing
PROGRAM
RUN
.
Features
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m Chair Prm Chair Pr
m Chair Pr
oo
oo
o
gg
gg
g
rr
rr
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ammingamming
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..
..
.
The thermostat uses 24 VAC power
supplied by the system for normal
operation. However, if the installed
“AA” batteries are providing sufficient
power, you can program the thermostat
away from the wall. If the thermostat
indicates low battery power (CHECK
BATTERY), refer to the Battery Back-
up feature (page 33).
TT
TT
T
emporempor
emporempor
empor
arar
arar
ar
y Pry Pr
y Pry Pr
y Pr
oo
oo
o
gg
gg
g
rr
rr
r
am Ovam Ov
am Ovam Ov
am Ov
erer
erer
er
rideride
rideride
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..
..
.
Any time your program is running and
you would like to override it for a
specific amount of time, press
or until the temperature you
want is displayed. The display will
indicate HOLD, and the number of
hours remaining in the hold period will
be indicated with the word HRS. To
adjust the length of time for the
override, press TIME
FWD
or TIME
BACK
. HOLD TILL will be displayed
as well as the HOLD period expiration
time. Press TIME
FWD
or TIME
BACK
buttons until you reach the time
you would like it to resume the
program. The TIME
FWD
or TIME
BACK
buttons adjust the time in 15
minute increments. This programmed
hold time has a 19 hour maximum and
15 minute minimum. Beyond 19 hours
you may wish to use the vacation hold
feature (page 33). If you need to, you
can adjust the temperature up or down.
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Indefinite PrIndefinite Pr
Indefinite Pr
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oo
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rr
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am Hold.am Hold.
am Hold.am Hold.
am Hold.
If you want to operate the thermostat
to keep a set temperature without a
program running, press PROGRAM
HOLD
. The or buttons
can be used to raise or lower the
temperature. The thermostat will hold
the set temperature until you return to
the program by pressing PROGRAM
RUN
.