Emerson 1F97-391 User Manual
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FAQs
1F97-391
1. My thermostat is reading
in Celsius. How do I change
it to Fahrenheit?
2. The display shows the
word
CHECK B
CHECK B
CHECK B
CHECK B
CHECK BA
A
A
A
ATTER
TTER
TTER
TTER
TTERY
Y
Y
Y
Y.
What does it mean?
3. How do I bypass (not use)
the program?
4. What functions do the
connecting terminals have on
the subbase?
Press PROGRAM
R
R
R
R
RUN
UN
UN
UN
UN to make certain the thermostat is in the run program mode, then
press TIME
FWD
FWD
FWD
FWD
FWD and TIME B
B
B
B
BA
A
A
A
ACK
CK
CK
CK
CK at the same time to enter the configuration menu.
Press TIME
FWD
FWD
FWD
FWD
FWD until you get to °C then press the UP
UP
UP
UP
UP or DO
DO
DO
DO
DOWN
WN
WN
WN
WN arrow to select °F,
press PROGRAM
R
R
R
R
RUN
UN
UN
UN
UN to return to normal operation.
CHECK B
CHECK B
CHECK B
CHECK B
CHECK BA
A
A
A
ATTER
TTER
TTER
TTER
TTERY
Y
Y
Y
Y on the digital display indicates low batteries. The B
B
B
B
BA
A
A
A
ATTER
TTER
TTER
TTER
TTERY
Y
Y
Y
Y symbol
(not blinking) indicates a loss of power (24 volts) from the heating and cooling equipment
to the thermostat, or that the thermostat is operating on battery power only.
To bypass the program and operate the thermostat manually press the MODE
SY
SY
SY
SY
SYSTEM
STEM
STEM
STEM
STEM
button to select Heat or Cool (whichever you prefer) and press
HOLD
HOLD
HOLD
HOLD
HOLD. Use the Temp Up
Up
Up
Up
Up
or Temp
Do
Do
Do
Do
Down
wn
wn
wn
wn buttons to set the thermostat on the temperature you want. The tempera-
ture setting you choose will be held until you manually change it using the Temp
Up
Up
Up
Up
Up or
Temp Do
Do
Do
Do
Down
wn
wn
wn
wn buttons. The thermostat will remain in the HOLD
HOLD
HOLD
HOLD
HOLD mode when you change
temperature and maintain whatever temperature you set. If you decide to return to the
program, press PROGRAM
R
R
R
R
RUN
UN
UN
UN
UN to cancel the hold feature.
Typical terminals and functions:
HM1=Humidifier System
6=Zone Valve
Y=Cooling System
G=Fan Relay
W=Heating System
HM2=Humidifier System
RC= Power (Cooling)
RH=Power (Heating)