1F80-241
Programmable Electronic Digital Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
Your new White-Rodgers 5-Day/1-Day/1-Day Digital Thermo-
stat uses the technology of a solid-state microcomputer to
provideprecisetime/temperaturecontrol. Thisthermostatoffers
you the flexibility to design heating and cooling programs that fit
your needs.
• LCD continuously displays set point, and alternately dis-
plays time and room temperature
• Temperature override until next program period
• Manual program override (HOLD temperature)
• Temporary HOLD
Features:
• °F/°C convertibility
• Temperature range 45° to 90°F
• RC, RH, C, W, Y, G , O and B terminals
• B and O terminals for single stage heat pumps (no auxiliary
heat) or damper operation
• Program storage in case of power loss.
• 24 Volt System powered.
• Separate 5-day (weekday), 1-day (Sat) and 1-day (Sun) pro-
gramming with four separate time/temperature settings per day
• Simultaneous heat and cool program storage
• Preprogrammed temperature control
• Backlit display
PRECAUTIONS
Thisthermostatisintendedforusewithalowvoltagesystem;do
not use this thermostat with a line voltage system. If in doubt
about whether your wiring is millivolt, line, or low voltage, have
itinspectedbyaqualifiedheatingandairconditioningcontractor
or electrician.
WARNING
!
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
Do not exceed the specification ratings.
Allwiringmustconformtolocalandnationalelectricalcodesand
ordinances.
This control is a precision instrument, and should be handled
carefully. Roughhandlingordistortingcomponentscouldcause
the control to malfunction.
Thermostat installation and all components of the
system shall conform to Class II circuits per the NEC
code.
CAUTION
!
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.
SPECIFICATIONS
ELECTRICAL DATA
APPLICATIONS
Electrical Rating:
For use with:
18 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.0 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
•
•
•
•
Standard heat/cool or heat only systems
Electric heat systems
Gas or oil fired systems
Gas systems with intermittent ignition devices (I.I.D.)
and/or vent dampers
Hydronic (hot water or steam) systems
Single-stage heat pump systems (no auxiliary heat)
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-4°F to 150°F
•
•
DO NOT USE WITH:
•
•
•
•
Millivolt systems
Multi-stage systems
Systems exceeding 30 VAC and 1.5 amps
3-wire zoned hydronic heating systems
WHITE-RODGERS
EMERSON ELECTRIC CO.
PART NO. 37-6313A
Printed in U.S.A.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
0144
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JUMPER
WIRE
THERMOSTAT
SYSTEM
Hot
Y
C
B
O
G
W
RC
RH
THERMOSTAT
SYSTEM
C
Y
B
O
G
W
RC
RH
Cooling
System Relay System
Fan
Heating
24 VAC
120 VAC
Neutral
Fan
Relay
Heating
System
Hot
HEATING
TRANSFORMER
24 VAC
120 VAC
Neutral
Hot
TRANSFORMER
24 VAC
120 VAC
Neutral
Figure 2. Typical wiring diagram for
heat only, 3-wire, single transformer systems
with common connection (required)
COOLING TRANSFORMER
Figure 5. Typical wiring diagram for
heat/cool, 5-wire, two-transformer systems
with common connection (required)
JUMPER
WIRE
THERMOSTAT
C
B
O
Y
G
W
RC
RH
SYSTEM
JUMPER
WIRE
JUMPER
WIRE
Cooling
Fan
THERMOSTAT
SYSTEM
System Relay
Hot
Y
C
B
O
G
W
RC RH
24 VAC
120 VAC
Neutral
Reversing Compressor Fan
Valve*
Contactor Relay
Hot
TRANSFORMER
24 VAC
120 VAC
Neutral
Figure 3. Typical wiring diagram for
cool only, 3-wire, single transformer systems
with common connection (required)
* Reversing valve is energized when the
system switch is in the COOL position
TRANSFORMER
Figure 6. Typical wiring diagram for heat pump
with reversing valve energized in COOL
with common connection (required)
NOTE
RED jumper wire (provided with thermostat) must be
connected between thermostat RH and RC terminals
for proper thermostat operation with this system.
JUMPER
WIRE
JUMPER
WIRE
JUMPER
WIRE
THERMOSTAT
SYSTEM
Y
C
B
O
G
W
RC RH
THERMOSTAT
SYSTEM
Y
C
B
O
G
W
RC RH
Cooling
System Relay
Fan
Heating
System
Reversing Compressor Fan
Valve*
Contactor Relay
Hot
Hot
24 VAC
120 VAC
Neutral
24 VAC
120 VAC
Neutral
* Reversing valve is energized when the
system switch is in the HEAT position
TRANSFORMER
TRANSFORMER
Figure 7. Typical wiring diagram for heat pump
with reversing valve energized in HEAT
with common connection (required)
Figure 4. Typical wiring diagram for
heat/cool, 4-wire, single transformer systems
with common connection (required)
Cooling System
2. Press
toadjustthermostatsettingbelowroomtempera-
CAUTION
!
ture.Theblowershouldcomeonimmediatelyonhighspeed,
followed by cold air circulation
Topreventcompressorand/orpropertydamage, ifthe
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
3. Press
to adjust temperature setting above room tem-
perature. The cooling system should stop operating.
1. Move SYSTEM switch to COOL position.
OPERATION
The Thermostat Buttons and Switches
Before you begin programming your thermostat, you should be
familiarwithitsfeaturesandwiththedisplayandthelocationand
operation of the thermostat buttons. Your thermostat consists of
two parts: the thermostat cover and the base. To remove the
cover, pullitstraightoutfromthebase. Toreplacethecover, line
up the cover with the base and press until the cover snaps onto
the base.
1
2
3
4
5
6
Raises temperature setting.
Lowers temperature setting.
TIME button.
PRGM (program) button.
THE THERMOSTAT BASE
RUN (program) button.
Other than
and
, the following buttons and switches are
HOLD temperature button.
located on the bottom of the thermostat cover (see fig. 8).
3
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CONFIGURATION MENU
The configuration menu allows you to set certain thermostat
operatingcharacteristicstoyoursystemorpersonalrequirements.
1
Press RUN to make sure the thermostat is in the run program
mode, then press PRGM and RUN at the same time to enter the
configuration menu. The display will show the first item in the
configuration menu.
2
FAN
SYSTEM
TIME
PRGM
RUN
HOLD
The configuration menu chart below summarizes the configura-
tion options. An explanation of each option follows.
ON AUTO COOL OFF HEAT
Press HOLD to change to the next menu item or press TIME to
gobackwardstothepreviousiteminthemenu. Toexitthemenu
and return to the program operation, press RUN. If no keys are
pressed within fifteen minutes, the thermostat will revert to
normal operation.
3
4
5
6
7
8
9
9
MO TU WE TH FR
SA SU
PM
1) SelectTemporaryHoldTime-Thethermostatcanholdany
temperature you set it to for the amount of time you select on
this option. Your choices are 0:00 to 8:00 hours in 15 minute
increments. 0:00 disables the function
AM
HOLD
Example: Using the Temporary Hold Function
11
10
13 11
10
12
1. You have selected 3:00 hours for the Temporary Hold
time period.
Figure 8. Thermostat display, buttons, and switches
2. With the thermostat set to Heat or Cool, press HOLD for
five seconds (time will show 3:00 hours as a setting
reminder).
7
8
FAN switch (ON, AUTO).
SYSTEM switch (COOL, OFF, HEAT).
3. HOLD on the display will blink.
The Display
4. Use
or
to set the temperature to your prefer-
ence. The thermostat will maintain this temperature
setting for 3 hours with HOLD blinking to remind you it is
in Temporary Hold. After 3 hours the thermostat will go
back to the program temperature and HOLD will no
longer blink or display.
9
Indicates day of the week.
10
Flame icon ( ) is displayed when the SYSTEM switch is in
the HEAT position. Snowflake icon ( )is displayed (non-
flashing)whentheSYSTEMswitchisintheCOOLposition. 2) Select FA or SL (Fast or Slow) Heating Cycle Rate - The
Snowflake is displayed (flashing) if the thermostat is in
lockout mode to prevent the compressor from cycling too
quickly.
FA setting is frequently used for gas, oil or electric heat. The
SL setting produces a longer heating cycle which is nor-
mally for hot water or steam (hydronic) systems. Both
settings produce very accurate temperature control and
can be set to your personal preference. FA cycles the
system just under 1°F and the SL setting cycles at approxi-
mately 1.5°F.
11
12
Alternately displays current time and temperature.
Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
3) Select backlit display - The display backlight improves
display contrast in low lighting conditions. Selecting back-
light ON will keep the light on continuously. Selecting OFF
will keep the light off.
The word HOLD is displayed when the thermostat is in the
HOLD mode. HOLD is displayed flashing when the thermo-
stat is in a temporary HOLD Mode.
Configuration Menu
Step
Press Button(s)
Displayed (Factory Default) Press
or
to select:
COMMENTS
Select temporary Hold time
1
HOLD
0 to 8 hrs (in
PRGM
and RUN
(0:00)
15 minute increments0)
Select FA or SL (Fast or Slow) heating cycle rate
SL
2
3
4
5
6
HOLD
*
(FA)
d-L
(ON)
OFF
OFF
Select display backlight OFF or ON
HOLD
HOLD
*
*
E
(ON)
Select Energy Management Recovery OFF or ON
LOC
(OFF)
ON
HOLD
HOLD
*
*
Select Compressor lockout OFF or ON
Select temperature display adjustment higher or lower
0 HI
(0)
4 LO to
4 HI
Select temperature display to °F or °C
(F)
°C
HOLD
RUN
*
7
8
Returns to normal operation
* Press HOLD to advance to next item or TIME to move backwards to previous item
4
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4) Select Energy Management Recovery OFF or ON -
Energy Management Recovery (EMR) causes the thermo-
stat to start heating or cooling early to make the building
temperature reach the program setpoint at the time you
specify. Heating will start 5 minutes early for every 1° of
temperature required to reach setpoint.
press HOLD button. HOLD will be displayed. Then choose
the desired temperature by pressing or . The
thermostat will hold the room temperature at the selected
setting until you press RUN button to start program opera-
tion again.
• CONFIGURATION MENU — Allows you to customize
certain thermostat options.
Example: You select EMR and have your heating pro-
grammed to 65° at night and 70° at 7 AM. If the building
temperature is 65° the difference between 65° and 70° is 5°.
Allowing 5 minutes per degree the thermostat setpoint will
change to 70° at 6:35 AM. Cooling allows more time per
degree because it takes longer to reach temperature.
PROGRAMMING YOUR THERMOSTAT
This section will help you plan your thermostat’s program to
meetyourneeds.Formaximumcomfortandefficiency,keepthe
following guidelines in mind when planning your program.
5) Select Compressor Lockout LOC OFF or ON - Selecting
LOC ON will cause the thermostat to wait 5 minutes before
turning on the compressor if the heating and cooling system
loses power. It will also wait 5 minutes minimum between
coolingcycles. Thisisintendedtohelpprotectthecompres-
sor from short cycling. Some newer compressors already
have a time delay built in and do not require this feature.
Your compressor manufacturer can tell you if the feature is
already present in their system. When the compressor time
delay occurs it will flash the (snowflake icon) for about five
minutes then turn on the compressor.
• When heating (cooling) your building, program the tem-
peratures to be cooler (warmer) when the building is vacant
or during periods of low activity.
• During early morning hours, the need for cooling is usually
minimal.
Planning Your Program
Look at the factory preprogrammed times and temperatures
showninthesampleschedule. Ifthisprogramwillsuityourneeds,
simply press the RUN button to begin running the factory preset
program.
6) Select Temperature Display Adjustment 4 LO to 4 HI -
Allows you to adjust the room temperature display 4° higher
or lower. Your thermostat was accurately calibrated at the
factory but you have the option to change the display
temperature to match your previous thermostat.
If you want to change the preprogrammed times and tempera-
tures, follow these steps.
Determine the time periods and temperatures for your weekday
andweekendprograms.Youmustprogramfourperiodsforboth
the weekday and weekend program. However, you may use the
same heating and cooling temperatures for consecutive time
periods. You can choose start times, heating temperatures, and
cooling temperatures independently for both weekday and
weekend programs (for example, you may select 5:00 AM and
70° as the weekday 1st period heating start time and tempera-
ture, and also choose 7:00 AM and 76° as the weekday 1st
period cooling start time and temperature).
7) Select F° or C° Readout - Changes the display readout to
Celsius or Fahrenheit as required.
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and
display, read the following information to learn about the many
features of the thermostat.
• SIMULTANEOUS HEATING/COOLING PROGRAM
STORAGE—Whenprogramming,youcanenterbothyour
heating and cooling programs at the same time. There is no
need to reprogram the thermostat at the beginning of each
season.
Use the following table to plan your program time periods and
the temperatures you want during each period. Fill in the
complete table to have a record of your programs.
Entering Your Program
• TEMPERATUREOVERRIDE—Press
or
untilthe
display shows the temperature you want. The thermostat
will override current programming and keep the room
temperature at the selected temperature until the next
program period begins. Then the thermostat will automati-
cally revert to the program.
Follow these steps to enter the heating and cooling programs
you have selected.
Set Current Time and Day
1. PressTIMEbuttononce. Thedisplaywillshowthehouronly.
• HOLD TEMPERATURE — The thermostat can hold any
temperature within its range for an indefinite period without
reverting to the programmed temperature. Momentarily
PM
EXAMPLE:
SAMPLE
Heating/Cooling Schedule Plan (Factory Program)
Heating/Cooling Schedule Plan
SATURDAY (1 DAY)
SUNDAY (1 DAY)
WEEKDAY (5 DAY)
SATURDAY (1 DAY)
SUNDAY (1 DAY)
WEEKDAY (5 DAY)
Start
Time
Start
Time
Start
Time
Start
Time
Start
Time
Start
Time
Period
1ST
Temperature
70˚F
Temperature
70˚F
Temperature
70˚F
Period
1ST
Temperature
Temperature
Temperature
6:00 AM
6:00 AM
6:00 AM
2ND
3RD
4TH
1ST
2ND
3RD
4TH
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
62˚F
70˚F
62˚F
78˚F
85˚F
78˚F
82˚F
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
62˚F
70˚F
62˚F
78˚F
85˚F
78˚F
82˚F
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
62˚F
70˚F
62˚F
78˚F
85˚F
78˚F
82˚F
2ND
3RD
4TH
1ST
2ND
3RD
4TH
5
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2. Press and hold either
or
until you reach the correct
CAUTION
!
hour and AM/PM designation (AM begins at midnight; PM
If the outside temperature is below 50°F, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during
cold weather may cause personal injury or property
damage.
begins at noon).
3. PressTIMEonce.Thedisplaywindowwillshowtheminutesonly.
EXAMPLE:
CHECK YOUR PROGRAMMING
4. Press and hold either
minutes.
or
until you reach the correct
Follow these steps to check your thermostat programming one
final time before beginning thermostat operation.
5. Press TIME once. The display will show the day of the week.
6. Press or untilyoureachthecurrentdayoftheweek.
1. Move SYSTEM switch to HEAT position.
2. Press PRGM to view the 1st weekday heating period time
and temperature. Each time you press PRGM, the next
heating period time and temperature will be displayed in
sequence for weekday, then weekend program periods (you
may change any time or temperature during this procedure).
7. Press RUN once. The display will show the correct time and
room temperature alternately.
Enter Heating Program
1. Move the SYSTEM switch to HEAT.
3. Press RUN.
2. Press PRGM once. “MO TU WE TH FR” (indicating weekday
program) will appear in the display. Also displayed are the
currently programmed start time for the 1st heating period
and the currently programmed temperature (flashing).
4. Move SYSTEM switch to COOL position.
5. Repeat step 2 to check cooling program.
6. Move SYSTEM switch to HEAT or COOL and press RUN
to begin program operation.
MO TU WE TH FR
AM
YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND
READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!
EXAMPLE:
This display window shows that for the 1st weekday period,
the start time is 6:00 AM, and 68° is the programmed
temperature(thisexamplereflectsfactorypreprogramming).
TROUBLESHOOTING
No Heating
With the SYSTEM switch set to HEAT, when the setpoint
temperature is raised or lowered past the room temperature,
the thermostat will make a soft click sound. Usually, the sound
indicates the thermostat is operating correctly. If the system
does not come on, check the system or contact your heating/
cooling service person. If the thermostat does not click try the
Reset Operation listed below.
3. Press
or
to change the displayed temperature to
your selected temperature for the 1st heating program
period.
4. Press TIME once (the programmed time will flash). Press
or
until your selected time appears. The time will
change in 15 minute increments. When your selected time is
displayed, press TIME again to return to the change tem-
perature mode.
No Cooling
Same procedure as heating except set SYSTEM switch to
COOL. There can be up to a 5 minute compressor lock-out time
delay before the thermostat clicks in COOL.
5. Press PRGM once. The currently programmed start time
and setpoint temperature for the 2nd heating program
period will appear.
Blank Display
A blank digital display usually indicates loss of power to the
thermostat from the heating and cooling system or indicates
the thermostat has received a voltage spike or static discharge
(see Reset Operation).
6. Repeat steps 3 and 4 to select the start time and heating
temperature for the 2nd heating program period.
7. Repeatsteps3through5forthe3rdand4thheatingprogram
periods. Weekday heating programs are now complete.
The thermostat must have 24 volts constantly supplied to
terminals RC/RH and C. A blown fuse or tripped breaker could
cause a power loss. Also, many furnaces contain safety or limit
devices that can disconnect the power to the thermostat
intermittently.
8. Press PRGM once. “SA” (indicating Saturday program) will
appear in the display, along with the start time for the 1st
heating period and the currently programmed temperature.
9. Repeat steps 3 through 7 to complete Saturday heating
programming.
Time Loss
10.Press PRGM once. “SU” (indicating Sunday program) will
appear in the display, along with the start time for the 1st
heating period and the currently programmed temperature.
The thermostat maintains its program in memory during a
power loss but the clock time freezes until power is restored. If
your clock does not keep accurate time you may be losing
power. Check with your service person for additional assis-
tance.
11.Repeat steps 3 through 7 to complete Sunday heating
programming.
12.When you have completed entering your heating program,
press RUN.
Reset Operation
If a voltage spike or static discharge blanks out the display or
causes erratic thermostat operation you can reset the thermo-
Enter Cooling Program
1. Move SYSTEM switch to COOL position.
stat by pressing
,
and TIME at the same time. This
2. Follow the procedure for entering your cooling program,
using your selected cooling times and temperatures.
also resets the factory defaults to the configuration menu
and program. If the thermostat has power, has been reset and
still does not function correctly contact your heating/cooling
service person or place of purchase.
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