White Rodgers 1F90-60 User manual

OPERATION GUIDE
5 Day/2 Day Electronic Digital
Thermostat (for Heat Only Systems)
1F90-60
Operator: Save this booklet for future use!
WHITE-RODGERS

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About Your New Thermostat . . .
Your new White-Rodgers Digital Thermostat uses the technology of a solid-state microcomputer
to provide precise time/temperature control. This thermostat offers you the flexibility to design
heating and cooling programs that fit your needs.
Pleasereadthismanualthoroughlybeforeoperatingorprogrammingyourthermostat. Ifyouhave
questions, write to us at the address shown on the back cover of this manual.

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PROGRAMMING YOUR
THERMOSTAT .................................... 15
PLANNING FOR YOUR NEEDS
ENTERING YOUR PROGRAM
Set Current Time and Day
Enter Heating Program
CHECK YOUR PROGRAMMING
QUESTIONS AND ANSWERS................. 23
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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• Separate5-day(weekday)and2-day(week-
end) setback programming
• Fourseparatetime/temperaturesettingsper
24-hour period
• Computed Energy Management Recovery
(EMR)
• Armchair programming capability
• Backlit LCD displays continuous set point,
time, and room temperature
• 1.5 volt "AA" Energizer®alkaline battery
backup
YOUR NEW THERMOSTAT’S FEATURES
• Preprogrammed temperature control
• Adjustable cycle times
• Audioandvisualpromptingduringoperation
• Two hour temperature override
• Manual program override (HOLD tempera-
ture)
• "Advance Program" key
•°F/°C convertibility
• Temperature range 40°to 99°F

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OPERATING YOUR THERMOSTAT
Before you begin programming your thermo-
stat,you shouldbe familiarwith itsfeatures and
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
thermostat body and the subbase.
Remove power from the system at the
circuit breaker/fuse box before remov-
ing or attaching the thermostat body.
Equipment damage and/or personal in-
jury could occur.
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 straight out from the subbase. To attach
thethermostatbody,lineupthesixterminalpins
ontheuppersectionofthethermostatbackwith
the matching connector on the subbase. Insert
these, then gently pivot the thermostat body
down to connect the snap connectors on the
lower portion of the thermostat back. Gently
push until the snap connectors engage. DO
NOTFORCEORPRYTHETHERMOSTAT,as
this may damage the unit.
CAUTION
!

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PARTS OF THE THERMOSTAT
The Back of The Thermostat Body
Turnthethermostatbodyover. Onthebackare
the 3 "AA" Energizer®alkaline batteries.
The "AA" Energizer®alkaline batteries provide
powertothethermostatwhenthe24vACpower
is interrupted (for example, when you remove
the thermostat from the wall for programming).
Freshbatterieswillmaintainthestoredprogram
for approximately a year. If power loss is long
enough for the program to be lost, the thermo-
stat will automatically return to the factory pro-
grammed heating temperature of 64°F when
power is restored. You must reprogram the
thermostat if this happens.
If the word BATTERY is flashing in the display
window, the batteries are low and should be
replaced with fresh "AA" Energizer®alkaline
batteries.
Before removing thermostat from the
wall to replace the batteries, remove
24vAC power from the thermostat at the
breaker/fuse box.
CAUTION
!

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Other than and , the buttons are
locatedbehindthethermostatdoor. Toopenthe
door,putyourfingernailintheindentation atthe
topofthedoor,thenpullthedooroutfromthetop
and swing it down on its hinges.
On the following pages there are brief descrip-
tions of the display and the thermostat buttons.
BACK OF THERMOSTAT BODY
6-pin Connector Batteries
S3

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1
2
3
4
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The Display
Continuouslydisplayssystemmode(HEAT,
OFF, HOLD). During programming, the
program period is displayed (MOR, DAY,
EVE, or NHT).
Alternately displays room temperature (F
denotesdegreesFahrenheitandCdenotes
degrees Celsius) and time of day (Ade-
notes AM time and Pdenotes PM time).
Displays the setpoint temperature.
5DAYindicatesthatthedisplayedprogram
is the weekday program. 2 DAY indicates
that the displayed program is the weekend
program.
The word BATTERY flashes on the display
when the "AA" alkaline batteries are weak
and should be replaced. The word BAT-
TERYisdisplayedcontinuously(non-flash-
ing) when thermostat is running on battery
power only.
On millivolt systems, the thermostat oper-
ates on battery power and the word BAT-
TERYwillalwaysbedisplayedcontinuously.
If you have a millivolt system, you should
change your batteries at least once a year to
ensure optimum thermostat operation.
NOTE

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SYSTEM
SWITCH
HEAT-OFF
TIME
FWD
TIME
BACK
SET
CLOCK
SET
DAY
VIEW
PRGM
RUN
PRGM
HOLD
TEMP
ADV
PRGM
1 2 3
4
2 DAY 5 DAY
2
3
4
5 DAY
5
BATTERY
WHITE-RODGERS DIGITAL COMFORT SET II

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The Thermostat Buttons
Sets the system mode (HEATing or OFF).
Runs display forward or backward through
time, day, or anticipation settings during
programming.
Usedwith
TIME
FWD
and
TIME
BACK
tosetcurrenttime.
Used with
TIME
FWD
and
TIME
BACK
to set the current
day of the week. Also used in conjunction
with the
SET
CLOCK
button to enter anticipation
setting mode.
Used to initiate or review thermostat pro-
gramming.
Used to start program operation after pro-
gramming. Also used to return thermostat
to program operation after being in HOLD
mode.
Used to manually override programming to
holdataselectedtemperature(whenHOLD
is displayed).
Usedtoadvancethermostatprogramtothe
next program period (for example, from the
MOR program to the DAY program).
(Red arrow) Raises temperature setting
(99°F or 37°C maximum).
(Blue arrow) Lowers temperature setting
(40°F or 4°C minimum).
Theredindicatorlightglowswheneverheat-
ing system is operating.
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