Emerson 1F97-391

FAQs 1F97-391

1. My thermostat is reading

in Celsius. How do I change

it to Fahrenheit?

2. The display shows the

word CHECK BCHECK B

CHECK BCHECK B

CHECK BAA

ATTERTTER

TTERTTER

TTERYY

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 RR

RUNUN

UNUN

UN to make certain the thermostat is in the run program mode, then

press TIME FWDFWD

FWDFWD

FWD and TIME BB

BAA

ACKCK

CKCK

CK at the same time to enter the configuration menu.

Press TIME FWDFWD

FWDFWD

FWD until you get to °C then press the UP UP

UP UP

UP or DODO

DODO

DOWN WN

WN WN

WN arrow to select °F,

press PROGRAM RR

RUNUN

UNUN

UN to return to normal operation.

CHECK BCHECK B

CHECK BAA

ATTERTTER

TTERTTER

TTERYY

Y on the digital display indicates low batteries. The BB

BAA

ATTERTTER

TTERTTER

TTERYY

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 SYSY

SYSY

SYSTEMSTEM

STEMSTEM

STEM

button to select Heat or Cool (whichever you prefer) and press HOLDHOLD

HOLDHOLD

HOLD. Use the Temp UpUp

UpUp

or Temp DoDo

DoDo

Downwn

wnwn

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 UpUp

UpUp

Up or

Temp DoDo

DoDo

Downwn

wnwn

wn buttons. The thermostat will remain in the HOLDHOLD

HOLDHOLD

HOLD mode when you change

temperature and maintain whatever temperature you set. If you decide to return to the

program, press PROGRAM RR

RUNUN

UNUN

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)