Emerson 1F94-80 User manual

OPERATION GUIDE
7 Day Multi-stage/Heat Pump
Electronic Digital Thermostat
1F94-80
WHITE-RODGERS
Operator: Save this booklet for future use!
W H I T E - R O D G E R S
DIGITAL COMFORT SET II

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Pleasereadthismanualthoroughlybeforeoperatingorprogrammingyourthermostat. Ifyouhave
questions, you may write to our Technical Service Department at the address shown on the back
cover of this booklet.
About Your New Thermostat . . .
Your new Digital COMFORT SET II Multi-stage/Heat Pump Thermostat uses the technology of a
solid-state microcomputer to provide precise time/temperature control. The COMFORT SET II
Thermostat offers you the flexibility to design heating and cooling programs that fit your needs.

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PROGRAMMING YOUR
THERMOSTAT ................................... 19
PLANNING FOR YOUR NEEDS
ENTERING YOUR PROGRAM
Set Current Time and Day
Program Heating/Cooling
Temperatures
Enter Heating Program
Enter Cooling Program
Using the HOLD/COPY Button
CHECK YOUR PROGRAMMING
QUESTIONS AND ANSWERS................ 34
YOUR NEW THERMOSTAT'S
FEATURES ........................................... 4
OPERATING YOUR THERMOSTAT ........ 5
PARTS OF THE THERMOSTAT
The Back Of the Thermostat Body
The Display
The Thermostat Buttons
OPERATING FEATURES
In This Guide . . .
Operator: Save this
booklet for future use!

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• Computed Energy Management Recovery
(EMR)
• Automaticchangeover(operator-selectable)
• Separate setback programming for 7 inde-
pendent days
• Simultaneous heat and cool program stor-
age
• Twoseparatetime/temperaturesettingsper
24-hour period (occupied and unoccupied)
• Armchair programming capability
• Up to 2 stages of heat and up to 2 stages of
cool
• Dampercontrolandprogrammablefanwhen
the occupied temperature is selected
• Backlit LCD displays continuous set point,
time, and room temperature
• 9 volt Energizer®alkaline battery backup
• Preprogrammed temperature control
• Adjustable cycle times
• Compressor short cycle protection
• Blower delay in the cooling cycle
• Audio and visual prompting during opera-
tion
• Two hour temperature override
• Manual program override (HOLD tempera-
ture)
•°F/°C convertibility
• Keypad lockout (operator-selectable)
• Temperature range 40°to 99°F
• Compatible with Remote Sensor (installer-
selectable)
YOUR NEW THERMOSTAT’S FEATURES

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OPERATING YOUR THERMOSTAT
Thesubbaseisattachedtothewall,butyoucan
remove the thermostat body for easy program-
ming. To remove the thermostat body from the
subbase, grasp the thermostat body and gently
pull it out from the bottom of the subbase and
pivot up. To attach the thermostat body, line up
thefourterminalpinsontheuppersectionofthe
thermostatbackwiththematchingconnectoron
the subbase. Insert these, then gently pivot the
thermostat body down to connect the nine pin
connectors on the lower portion of the thermo-
statback.Gentlypushuntilthesnapconnectors
engage.DONOTFORCEORPRYTHETHER-
MOSTAT as this may damage the unit.
Before you begin programming your thermo-
stat,youshouldbefamiliarwithitsfeaturesand
with the display and the location and operation
of the thermostat buttons. The information in
this section will help you become familiar with
your new thermostat so that you can easily
program it.
Your thermostat consists of two parts: the ther-
mostat body and the subbase.
Use
SYSTEM
SWITCH
to turn thermostat to OFF
mode before removing or attaching the
thermostat body. Equipment damage
and/or personal injury could occur.
CAUTION
!

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PARTS OF THE THERMOSTAT
The Back of The Thermostat Body
Turnthe thermostat body over. On the backare
the 9 volt Energizer®alkaline battery and the
option switches.
1. The 9 volt Energizer®alkaline battery pro-
vides power to the thermostat when the
24VAC power is interrupted (for example,
when you remove the thermostat from the
wall for programming). A fresh battery will
maintain the stored program for approxi-
matelyaweek. Ifpowerlossislong enough
fortheprogramtobelost,thethermostatwill
automatically return to the factory pro-
grammed temperatures (64°F heating and
82°F cooling) when power is restored. You
BACK OF THERMOSTAT BODY
Option switches 9-pin connector
4-pin connector Battery
W18
must reprogram the thermostat if this hap-
pens.
If the word BATTERY is flashing in the
displaywindow,thebatteryislowandshould
be replaced with a fresh 9 volt Energizer®

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alkaline battery. The battery will provide
power for all functions except the display
light, which works only on 24VAC power.
Use
SYSTEM
SWITCH to turn thermostat to OFF
mode before removing thermostat from
the wall to replace the battery.
2. You may adjust the option switches for
energymanagementrecoveryandtotalkey-
pad lockout (see OPERATING FEA-
TURES).
CAUTION
!
Other than and , the buttons are
locatedbehindthethermostatdoor.Toopenthe
door,useyourfingernailintheindentationatthe
top center of the door. Pull the door out, then
swing the door down on its hinges.
Following are brief descriptions of the display
and the thermostat buttons.

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FAN AUTO is displayed during automatic
fan operation (when the blower cycles with
theheatingorcoolingsystem).PRGFANis
displayed when the fan has been pro-
grammed to run continuously during the
occupied program period.
The word BATTERY flashes on the display
when the 9 volt alkaline battery power is
weak and should be replaced.
The Display
Continuouslydisplayssystemmode(HEAT,
EMER, OFF, COOL, AUTO, HLD). During
programming, the day of the week and the
period (occupied or unoccupied) are dis-
played (MO O, TU O, WE U, etc.).
Alternately displays room temperature (F
denotesdegreesFahrenheitandCdenotes
degrees Celsius) and time of day (Ade-
notes AM time and Pdenotes PM time).
Duringprogramming,when
VIEW
TEMP
ispressed,
the heating or cooling mode and period
currently being programmed are displayed
(HEAT O, COOL U, etc.)
Displays the setpoint temperature (this dis-
play is blank in the AUTO mode).
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2
4
5
3

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SYSTEM
SWITCH
FAN
SWITCH
HEAT-EMER-OFF-COOL-AUTO
ON-AUTO
TIME
FWD
TIME
BACK
SET
CLOCK
ADV
DAY
VIEW
PRGM
VIEW
TEMP
HOLD
COPY
RUN
PRGM
SEVEN DAY DIGITAL COMFORT-SET II W H I T E - R O D G E R S
1 2 3
45
BATTERY
PRG FAN
2
3
4
EMER. PUMP
MALF. AUX.
FAN AUTOPRG FAN

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Usedwith and toselectsetpoint
temperatures.
Used to manually override programming to
holdataselectedtemperature(whenHOLD
is displayed). Also used to copy one day’s
programming to another day (when COPY
is displayed).
Used to start program operation after pro-
gramming.Alsousedtoreturnthermostatto
program operation after being in HOLD
mode.
(Red arrow) Raises temperature setting
(99°F or 37°C maximum).
(Blue arrow) Lowers temperature setting
(40°F or 4°C minimum).
EMER light indicates that the system is in
the emergency mode (the heat pump com-
pressor is off and the auxiliary heat system
is maintaining the setpoint temperature).
The Thermostat Buttons
Sets the system mode (HEATing, OFF,
COOLing, or AUTOmatic changeover).
Selects fan operation (see #4, above).
Runs display forward or backward through
time, day, or anticipation settings during
programming.
Usedwith
TIME
FWD
and
TIME
BACK
toset current time
and day of the week.
Used during programming to set the day of
the week to be programmed.
Usedtoinitiateorreviewprogramming(pro-
gram viewing automatically begins with
Monday’sprogram;use
ADV
DAY
buttontoview
programming for following days).
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