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OPERATION GUIDE  
1F95-71  
7 Day Multi-stage Electronic Digital  
Thermostat with Programmable Fan  
WHITE-RODGERS  
Operator: Save this booklet for future use!  
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About Your New Thermostat . . .  
Your new Digital COMFORT SET II Multi-stage 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.  
Please read this manual thoroughly before operating or programming your thermostat. If you  
have questions, you may write to our Technical Service Department at 9797 Reavis Road, St.  
Louis, MO, 63123.  
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In This Guide . . .  
YOUR NEW THERMOSTAT’S  
Program Heating/Cooling Times  
and Heating Temperatures  
Program Cooling Temperatures  
Using the COPY Button  
FEATURES ............................................ 4  
OPERATING YOUR THERMOSTAT ......... 5  
PARTS OF THE THERMOSTAT  
The Back Of the Thermostat Body  
The Display  
CHECK YOUR PROGRAMMING  
QUESTIONS AND ANSWERS ................. 33  
The Thermostat Buttons  
OPERATING FEATURES  
PROGRAMMING YOUR  
THERMOSTAT .................................... 18  
PLANNING FOR YOUR NEEDS  
ENTERING YOUR PROGRAM  
Set Current Time and Day  
Operator: Save this  
booklet for future use!  
Program Heating and Cooling  
Temperatures  
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YOUR NEW THERMOSTAT’S FEATURES  
• Computed Energy Management Recovery  
(EMR)  
• Automatic changeover  
• Two hour temperature override  
• Manual program override (HOLD tem-  
perature)  
• Compressor short cycle protection  
• Blower delay in the cooling cycle  
• Up to 3 stages of heat and up to 2 stages  
of cool  
• Initial total system checkout  
• Preprogrammed temperature control  
• Separate setback programming for 7 inde-  
pendent days  
• Electric heat (optional)  
• Audio and visual prompting for pro-  
gramming  
• Armchair programming capability  
• Programmable blower control  
• Temperature range 40° to 99°F  
°F/°C convertibility  
• Keypad lockout (optional)  
• Simultaneous heat and cool program  
storage  
• Four separate time and two separate tem-  
perature settings per 24-hour period  
• Backlit LCD displays continuous set point,  
time, and room temperature  
• Adjustable cycle times  
• Compatible with Remote Sensor (optional)  
• 9 volt Energizer® alkaline battery backup  
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OPERATING YOUR THERMOSTAT  
Before you begin programming your thermo- The subbase is attached to the wall, but you  
stat, youshouldbefamiliarwithitsfeaturesand can remove the thermostat body for easy pro-  
with the display and the location and operation gramming. To remove the thermostat body  
of the thermostat buttons. The information in from the subbase, grasp the thermostat body  
this section will help you become familiar with and gently pull it out from the bottom of the  
your new thermostat so that you can easily subbaseandpivotup. Toattachthethermostat  
program it.  
body, lineupthefourterminalpinsontheupper  
section of the thermostat back with the match-  
ing connector on the subbase. Insert these,  
then gently pivot the thermostat body down to  
connect the eight pin connectors on the lower  
portion of the thermostat back. Gently push  
until the snap connectors engage. DO NOT  
FORCE OR PRY THE THERMOSTAT as this  
may damage the unit.  
Your thermostat consists of two parts: the  
thermostat body and the subbase.  
CAUTION  
!
SYSTEM  
SWITCH  
Use  
to turn thermostat OFF  
before removing or attaching the ther-  
mostat body. Equipment damage and/  
or personal injury could occur.  
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4-pin connector  
PARTS OF THE THERMOSTAT  
Battery  
The Back of The Thermostat Body  
Turnthethermostatbodyover. Onthebackare  
the 9 volt Energizer® alkaline battery and the  
option switches.  
1. The 9 volt Energizer® alkaline battery  
provides power to the thermostat when  
the 24 VAC power is interrupted (for ex-  
ample, when you remove the thermostat  
from the wall for programming). A fresh  
battery will maintain the stored program  
for approximately a week. If power loss is  
long enough for the program to be lost,  
the thermostat will automatically return to  
the factory programmed temperatures  
(64°F heating and 82°F cooling) when  
power is restored. You must reprogram  
the thermostat if this happens.  
Option switches  
9-pin connector  
BACK OF THERMOSTAT BODY  
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If the word BATTERY is flashing in the 2. You may adjust the option switches for  
displaywindow,thebatteryislowandshould  
be replaced with a fresh 9 volt Energizer®  
alkaline battery. The battery will provide  
power for all functions except the display  
lightandaudiopromptingbeep, whichwork  
only on 24 VAC power.  
keypad lockout (see OPERATING FEA-  
TURES).  
CAUTION  
!
SYSTEM  
SWITCH  
Use  
to turn thermostat OFF  
before removing thermostat from the  
wall to replace the battery.  
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The buttons (other than  
and  
) are  
VIEW  
TEMP  
When  
ispressed, Aisdisplayedwhen  
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located behind the thermostat door. To open  
the door, use your fingernail in the indentation  
at the top center of the door. Pull the door out,  
then swing the door down on its hinges.  
the setpoint temperature displayed (at the  
far right) is the 1st programmed heating or  
coolingtemperature(dependingonmode).  
B is displayed when the 2nd programmed  
heating or cooling temperature is being  
displayed.  
Following are brief descriptions of the display  
and the thermostat buttons.  
The Display  
FAN ON is displayed when the blower is  
5
Continuously displays system mode  
1
2
3
operating continuously. FAN AUTO is dis-  
played during automatic fan operation  
(whentheblowercycleswiththeheatingor  
cooling system). PRG FAN is displayed  
when the fan has been programmed to run  
continuously during the current program  
period.  
(HEAT, OFF, COOL, AUTO, HOLD). Dur-  
ing programming, the day of the week is  
displayed (MO, TU, WE, etc).  
Alternately displays room temperature (F  
denotes degrees Fahrenheit and C de-  
notes degrees Celsius) and time of day (A  
denotes AM time and P denotes PM time).  
ThewordBATTERYflashesonthedisplay  
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when the 9 volt alkaline battery power is  
weak and should be replaced.  
Displays the setpoint temperature.  
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A
FAN AUTO  
W H I T E - R O D G E R S  
SEVEN DAY DIGITAL COMFORT-SET II  
TIME  
FWD  
SET  
CLOCK  
VIEW  
PRGM  
HOLD  
COPY  
SYSTEM  
SWITCH  
HEAT-OFF-COOL-AUTO  
FAN  
SWITCH  
TIME  
BACK  
ADV  
DAY  
VIEW  
TEMP  
RUN  
PRGM  
ON-AUTO  
1
2
3
4
3
A
FAN AUTO  
B
FAN ON  
BATTERY  
4
5
4
5
2
6
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The Thermostat Buttons  
viewingautomaticallybeginswithMonday’s  
ADV  
Sets the system mode (HEATing, OFF,  
COOLing, or AUTOmatic changeover).  
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8
program;use  
toviewprogrammingfor  
DAY  
following days).  
Selectsfanoperation(see#5,above).This  
Used with  
and  
to select set-  
13  
14  
button is also used to program the fan to  
run continuously during a program period.  
point temperatures.  
Usedtomanuallyoverrideprogrammingto  
Runs display forward or backward through  
9
holdataselectedtemperature(whenHOLD  
is displayed). Also used to copy one day’s  
programming to another day (when COPY  
is displayed).  
time, day, or anticipation settings during  
programming.  
TIME  
FWD  
TIME  
Used with  
and  
to set current time  
10  
BACK  
Used to start program operation after pro-  
15  
16  
and day of the week.  
gramming. Also used to return thermostat  
to program operation after being in HOLD  
mode.  
Used during programming to set the day of  
the week to be programmed.  
11  
12  
Used to initiate programming or to review  
programming for a given day (program  
(Red arrow) Raises temperature setting  
(99°F or 37°C maximum).  
10  
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(Blue arrow) Lowers temperature setting  
Red indicator is lit whenever heating or  
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17  
(40°F or 4°C minimum).  
coolingisinoperation.Yellowindicatorislit  
whenever the second or third stages of  
heating or cooling are in operation.  
16 17  
18  
FAN AUTO  
W H I T E - R O D G E R S  
SEVEN DAY DIGITAL COMFORT-SET II  
TIME  
FWD  
SET  
CLOCK  
VIEW  
PRGM  
HOLD  
COPY  
SYSTEM  
SWITCH  
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HEAT-OFF-COOL-AUTO  
FAN  
SWITCH  
TIME  
BACK  
ADV  
DAY  
VIEW  
TEMP  
RUN  
PRGM  
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ON-AUTO  
9
10 11 12 13 14 15  
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programmed a temperature of 70°F. The  
thermostat will automatically activate the  
heating system at about 5:00 AM, so that  
the programmed 70°F temperature is  
reached by about 6:00 AM.  
OPERATING FEATURES  
Now that you are familiar with the thermostat  
display and buttons, read the following infor-  
mation to learn about the many features of the  
thermostat.  
AUTOMATICCHANGEOVER Youcan  
set the thermostat to automatically switch  
the system from heating to cooling as  
COMPUTED ENERGY MANAGEMENT  
RECOVERY (EMR) — The thermostat’s  
microcomputerautomaticallycalculatesthe  
time it will take to change the temperature  
to the next program setting. Then the ther-  
mostat will activate the heating or cooling  
system to change the temperature so that  
the desired temperature is reached at the  
beginningofthenextprogramperiod.Asan  
example of this feature, assume that you  
have programmed your thermostat to pro-  
vide an overnight heating temperature of  
62°F, and that during the next program  
period, beginning at 6:00 AM, you have  
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SYSTEM  
SWITCH  
needed. Use  
to set the thermo-  
stat to AUTO (the setpoint display is  
blank in the AUTO mode). The system  
will now automatically switch between  
heating and cooling depending on the  
actual room temperature.  
The thermostat will not allow the tempera-  
ture separation between the highest heat  
settingandthelowestcoolsettingtobeless  
that 1°F. For example, if the highest heat  
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setting is 76°F, the lowest cool setting can-  
not be below 77°F (see diagram below).  
HOLD  
COPY  
the program. Press  
. HOLD will be  
displayed. Then choose the desired hold  
temperature by pressing or  
The thermostat will hold the room tempera-  
ture at the selected setting until you press  
79  
.
COOLING TEMPERATURES  
78  
77  
76  
DEAD BAND 1°F  
75  
HEATING TEMPERATURES  
74  
RUN  
to start program operation again. This  
PRGM  
TWO HOUR TEMPERATURE OVER-  
feature is ideal for energy conservation  
when the building is unoccupied for an  
extended period of time.  
RIDE — Press  
or  
until the  
display shows the temperature you want.  
The thermostat will override current pro-  
gramming and keep the room temperature  
at the selected temperature for two hours.  
After two hours, the thermostat will auto-  
matically revert to the program.  
TIME  
°F/°CCONVERTIBILITYPress  
and  
FWD  
TIME  
at the same time until the temperature  
BACK  
display is in °C (Celsius). To display °F,  
repeat the process.  
HOLDTEMPERATUREThethermostat  
can hold any temperature within its range  
for an indefinite period, without reverting to  
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ADJUSTABLEHEATINGANDCOOLING  
CYCLE TIMES (ANTICIPATION) — If the  
heating/coolingsystemisturningonandoff  
too often (short cycles) or not often enough  
(long cycles), you may want to adjust the  
anticipation setting.  
TIME  
FWD  
the heat cycles are too short, press  
to  
increase the cycle time. If the heat cycles  
TIME  
are too long, press  
to decrease the  
BACK  
cycletime.Tosetcoolinganticipation,press  
SET  
ADV  
DAY  
and  
at the same time again. The  
CLOCK  
CAUTION  
!
display will show COOL 14 (factory prepro-  
A cooling anticipation setting of less  
than 10 may cause decreased com-  
pressor life.  
TIME  
grammed cooling anticipation). Use  
FWD  
TIME  
RUN  
and  
to adjust anticipation. Press  
BACK  
PRGM  
to return to your program.  
SET  
ADV  
DAY  
To adjust anticipation, press  
and  
CLOCK  
LOW BATTERY INDICATOR — The word  
BATTERY will flash on the display if the 9  
volt alkaline battery is low and should be  
replaced.  
at the same time. The display will show  
HEAT 8 (this is the factory preprogrammed  
heating anticipation setting). You may se-  
lect any anticipation setting from 4 to 40. If  
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AUDIO PROMPTING — Each time you  
press a button, the thermostat will beep  
(this feature works only when the thermo-  
stat is attached to the wall and 24 VAC  
power is present to the thermostat).  
a)Return of power after a power outage.  
SYSTEM  
SWITCH  
b)Pressing  
modes.  
to change operating  
c)Pressing  
or , creating a call  
BACKLIT DISPLAY — When you press  
any button on the thermostat, the display is  
lit for approximately eight seconds (this  
feature works only when the thermostat is  
attached to the wall and 24 VAC power is  
present to the thermostat).  
for COOL too soon after a previous call.  
SYSTEM INDICATOR LIGHTS — The red  
indicatorlightcomesonwhenevertheheat-  
ing or cooling system is operating. The  
yellow indicator light comes on when the  
second or third stages of heating or cooling  
are operating.  
COMPRESSOR SHORT CYCLE PRO-  
TECTION — To protect your compressor  
from potential damage due to rapid cycling,  
this thermostat has a built-in delay of 5  
minutes between cooling cycles. The fol-  
lowing may cause a time delay in COOL:  
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TOTAL KEYPAD LOCKOUT — When op-  
tion switch #3 is in the total keypad lockout  
position (ON), programs cannot be altered  
and all buttons are disabled.  
Switches #1 and #2 are set at installation  
and should not be changed. To enable total  
keypad lockout, move option switch #3 to  
ON (ensure that option switch #4 is OFF).  
To disable total keypad lockout, move op-  
tion switch #3 to OFF.  
NOTE  
Programming should be completed, desired  
system operation should be selected (HEAT,  
COOL, or AUTO), and battery should be in-  
stalled before changing option switch #3.  
PARTIAL KEYPAD LOCKOUT — When  
option switch #4 is in the partial keypad  
lockout position (ON), programs cannot be  
altered. All buttons except  
are disabled.  
and  
Total Keypad Lockout (ON)  
ON  
NOTE  
Programming should be completed, desired  
system operation should be selected (HEAT,  
COOL, or AUTO), and battery should be in-  
stalled before changing option switch #3.  
1
2
3
4
Switch #1 set at installation (DO NOT CHANGE)  
Switch #2 set at installation (DO NOT CHANGE)  
Switch #3 ON  
Switch #4 OFF  
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PROGRAMMABLE BLOWER CON-  
TROL — You may program the fan blower  
to run continuously during any given pro-  
gramperiod,regardlessofthecyclingofthe  
heatingorcoolingsystem.Duringprogram-  
ming, after entering the time and tempera-  
Partial Keypad Lockout (ON)  
ON  
1
2
3
4
Switch #1 set at installation (DO NOT CHANGE)  
Switch #2 set at installation (DO NOT CHANGE)  
Switch #3 OFF  
FAN  
ture for the time period, press  
until  
SWITCH  
Switch #4 ON  
PRG FAN is displayed. To override con-  
Switches #1 and #2 are set at installation  
and should not be changed. To enable  
partial keypad lockout, move option switch  
#4 to ON (ensure that option switch #3 is  
OFF). To disable partial keypad lockout,  
move option switch #4 to OFF.  
FAN  
stant fan, press  
not displayed.  
until PRG FAN is  
SWITCH  
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PROGRAMMING YOUR THERMOSTAT  
Nowyouarereadytoprogramyourthermostat. using the thermostat for a commercial applica-  
This section will help you plan and program tion (a store, office building, etc.), answer  
your thermostat to meet your needs.  
questions 1 through 4. If you are using the  
thermostat in your home, answer questions 5  
through 8.  
For maximum comfort and efficiency, keep the  
following guidelines in mind when planning  
your program.  
FOR COMMERCIAL APPLICATIONS:  
• When heating (cooling) your building, pro- 1a. What time does the first person arrive at  
gramthetemperaturestobecooler(warmer)  
when the building is vacant or during peri-  
ods of low activity.  
the building in the morning?  
b. What temperature should the building be  
at this time? (heating? cooling?)  
• During early morning hours, the need for  
cooling is usually minimal.  
2a. What time do the building occupants reach  
a maximum activity level (using lights,  
equipment, meeting rooms, etc.)?  
PLANNING FOR YOUR NEEDS  
b. What temperature should the building be  
at this time?  
First, answer the following questions to help  
you decide what your needs are. If you are  
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3a. What time do the building occupants reach  
a minimum activity level (limited personnel  
in building)?  
b. What temperature should the house be at  
this time?  
7a. What time does the first person arrive  
home in the evening?  
b. What temperature should the building be  
at this time?  
b. What temperature should the house be at  
this time?  
4a. What time does the building become  
vacant?  
8a. Whattimedoesthelastpersongotobedat  
night?  
b. What temperature should the building be  
at this time?  
b. What temperature should the house be at  
this time?  
IN YOUR HOME:  
5a. What time does the first person get up in Now look at the factory preprogrammed times  
the morning?  
andtemperaturesshownonthefollowingpage.  
If this program will suit your needs, simply  
b. What temperature should the house be at  
this time?  
RUN  
press  
to begin running the factory preset  
PRGM  
6a. What time does the last person leave the  
house in the morning?  
program.  
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FACTORY PREPROGRAMMING  
Cooling Program for ALL Days of the Week:  
Heating Program for ALL days of the Week:  
TEMP  
82  
78  
82  
82  
PERIOD  
TIME  
TEMP  
64  
70  
64  
64  
PERIOD  
TIME  
1
2
3
4
5:00 AM  
8:00 AM  
5:00 PM  
10:00 PM  
1
2
3
4
5:00 AM  
8:00 AM  
5:00 PM  
10:00 PM  
If you want to change the preprogrammed  
times and temperatures, follow these steps.  
NOTE  
To operate properly in the AUTO mode, there  
must be a minimum 1°F separation between  
the highest heat temperature and the lowest  
cool temperature (see diagram below).  
1. Determine the heating and cooling tem-  
peratures you want to use. You may select  
up to two heating temperatures (HEAT A  
and HEAT B), and up to two cooling tem-  
peratures (COOL A and COOL B). Use the  
following table to write down the tempera-  
tures you have selected. Keep in mind that  
you can program up to 4 temperatures (2  
heating, 2 cooling) at a time.  
79  
COOLING TEMPERATURES  
78  
77  
76  
75  
DEAD BAND 1°F  
HEATING TEMPERATURES  
74  
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1 on Monday, then your cooling period 1 for  
Monday will also begin at 5:00 AM). How-  
ever, you may choose different time peri-  
ods for each day separately (for example,  
heating/cooling period 1 on Monday may  
begin at 5:00 AM, but heating/cooling pe-  
riod 1 on Saturday may begin at 9:00 AM).  
Use the following table to plan your pro-  
gram time periods, and the temperatures  
you want during each period. You may also  
want to look at the sample program table to  
get an idea of how the thermostat can be  
programmed.  
Your  
Selected  
Temperature  
Factory  
Preprogrammed  
Temperature  
Temperature  
Designation  
HEAT A  
HEAT B  
70  
64  
COOL A  
COOL B  
78  
82  
2. Determine the time periods during which  
youwillprogramthetemperaturesyouhave  
just selected. You must program 4 periods  
for each day (periods 1, 2, 3 & 4). However,  
you may use the same heating and cooling  
temperatures for consecutive time periods.  
Also keep in mind that, for any given day,  
you can only program one set of times for  
both heating and cooling (for example, if  
you select 5:00 AM to begin heating period  
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Heating/Cooling Schedule Plan  
THIS THERMOSTAT ALLOWS ONE SET OF TIMES FOR BOTH HEATING AND COOLING  
Period 1  
Period 2  
Period 3  
Period 4  
Heat Cool  
Heat Cool  
Heat Cool  
Heat Cool  
Time Temp. Temp. Time Temp. Temp. Time Temp. Temp. Time Temp. Temp.  
Monday  
Tuesday  
Wednesday  
Thursday  
Friday  
Saturday  
Sunday  
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SAMPLE  
Heating/Cooling Schedule Plan  
THIS THERMOSTAT ALLOWS ONE SET OF TIMES FOR BOTH HEATING AND COOLING  
Period 1  
Period 2  
Period 3  
Period 4  
Heat Cool  
Heat Cool  
Heat Cool  
Heat Cool  
Time Temp. Temp. Time Temp. Temp. Time Temp. Temp. Time Temp. Temp.  
Monday  
Tuesday  
5:00 A 65° (A) 78° (A) 9:00 A 65° (A) 78° (A) 3:30 P 65° (A) 78° (A) 12:00 A 65° (A) 78° (A)  
5:00 A 65° (A) 78° (A) 9:00 A 70° (B) 72° (B) 3:30 P 70° (B) 72° (B) 12:00 A 65° (A) 78° (A)  
Wednesday 5:00 A 65° (A) 78° (A) 9:00 A 70° (B) 72° (B) 3:30 P 70° (B) 72° (B) 12:00 A 65° (A) 78° (A)  
Thursday  
Friday  
5:00 A 65° (A) 78° (A) 9:00 A 70° (B) 72° (B) 3:30 P 70° (B) 72° (B) 12:00 A 65° (A) 78° (A)  
5:00 A 65° (A) 78° (A) 9:00 A 70° (B) 72° (B) 3:30 P 70° (B) 72° (B) 12:00 A 65° (A) 78° (A)  
5:00 A 65° (A) 78° (A) 9:00 A 70° (B) 72° (B) 3:30 P 70° (B) 72° (B) 12:00 A 65° (A) 78° (A)  
5:00 A 70° (B) 72° (B) 9:00 A 70° (B) 72° (B) 3:30 P 65° (A) 78° (A) 12:00 A 65° (A) 78° (A)  
Saturday  
Sunday  
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Set Current Time and Day  
ENTERING YOUR PROGRAM  
Follow these steps to enter the heating/cooling  
program you have selected.  
SET  
1. Press  
once. The display will show  
CLOCK  
minutes only.  
EXAMPLE:  
NOTE  
TIME  
FWD  
TIME  
2. Press and hold either  
or  
until you  
We recommend that you remove the thermo-  
stat from the wall for programming (especially  
for entering cooling programming). A fresh 9  
volt Energizer® alkaline battery must be in-  
stalled to perform off-wall programming. BE  
SURE SYSTEM SWITCH IS SET TO OFF  
POSITION BEFORE REATTACHING  
THERMOSTAT TO SUBBASE!  
BACK  
reach the correct minutes.  
SET  
3. Press  
once. The display window will  
CLOCK  
show the hour only.  
EXAMPLE:  
TIME  
FWD  
TIME  
4. Press and hold either  
or  
until you  
BACK  
You cannot program the thermostat with the  
SYSTEM SWITCH in the AUTO position.  
reach the correct hour and AM/PM desig-  
nation (AM begins at midnight; PM begins  
at noon).  
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SET  
VIEW  
5. Press  
once. The display will show the programming after this happens, press  
CLOCK  
PRGM  
day of the week as an abbreviation (MO for until you are at the point where you stopped  
Monday, TU for Tuesday, etc.).  
programming. Then you may continue to enter  
your programs normally. If you want to stop  
TIME  
FWD  
TIME  
6. Press and hold either  
or  
until you  
BACK  
RUN  
programming at any time, simply press  
resume program operation.  
SYSTEM  
to  
PRGM  
reach the current day of the week.  
RUN  
7. Press  
once. The display will show the  
PRGM  
1. Press  
until HEAT is displayed.  
SWITCH  
correct time and room temperature alter-  
nately.  
VIEW  
TEMP  
2. Press  
once. The display will continue  
Program Heating and Cooling  
Temperatures  
to show HEAT. Below HEAT is the letter A,  
representing the first programmed heating  
temperature (HEAT A). At the right of the  
display is the currently programmed HEAT  
A setting.  
During programming, if you don’t press any  
buttons for 5 minutes, the thermostat will enter  
the HOLD mode and will maintain a constant  
temperature. Thedisplaywillreverttothealter-  
nating time/temperature display. To resume  
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3. Press either  
or  
to change the 9. Press either  
or  
to change the  
temperature to your selected HEAT A  
temperature to your selected COOL A  
setting.  
setting.  
VIEW  
VIEW  
4. Press  
once. The letterA will change to 10. Press  
once.Press  
or  
toset  
TEMP  
TEMP  
the letter B, representing HEAT B.  
your selected COOL B setting.  
5. Press either  
or  
to change the  
RUN  
11. Press  
.
PRGM  
temperature to your selected HEAT B  
setting.  
Program Heating/Cooling Times and  
Heating Temperatures  
RUN  
6. Press  
.
PRGM  
SYSTEM  
SWITCH  
1. Press  
until HEAT is displayed.  
SYSTEM  
SWITCH  
7. Press  
8. Press  
until COOL is displayed.  
VIEW  
2. Press  
once. MO, the abbreviation for  
PRGM  
VIEW  
once. The display will show  
TEMP  
Monday, and the number 1, representing  
the first heating/cooling period, will appear  
in the display. Also displayed are the cur-  
rently programmed start time for heating/  
COOL and A, representing the first pro-  
grammed cooling temperature (COOL A).  
26  
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cooling period 1 and the currently pro- 4. IfthetemperaturedisplayedisnottheHEAT  
grammed HEAT A or HEAT B temperature  
A or HEAT B temperature you want for  
for heating/cooling period 1.  
Monday’s period 1, press  
you continue to press  
display will alternate between the HEAT A  
and HEAT B temperatures you previously  
selected).  
or  
(if  
, the  
or  
EXAMPLE:  
This display window shows that for  
Monday’sheating/coolingperiod1,thestart  
timeis5:00AM,and64° istheprogrammed  
temperature (this example reflects factory  
preprogramming, where 64° is the HEAT A  
temperature).  
5. If you want the fan to run continuously  
during Monday heating/cooling period 1,  
FAN  
SWITCH  
press  
until PRG FAN is displayed.  
3. To change the displayed start time to your  
selected start time for Monday’s period 1,  
6. After selecting the desired heating tem-  
perature for heating/cooling Monday’s pe-  
TIME  
FWD  
TIME  
press  
or  
untilyourselectedtimeis  
VIEW  
BACK  
riod 1, press  
. The currently pro-  
PRGM  
displayed.Thetimewillchangein15minute  
increments.Thetimeyouprogramwillbe  
the start time of Monday’s period 1 for  
both heating and cooling.  
grammed start time and heating tempera-  
ture for Monday’s heating/cooling period 2  
will be displayed.  
27  
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7. Repeat steps 3 through 5 to select the start anyday’sheatingandcoolingprogramintoany  
timeandheatingtemperatureforMonday’s other day’s program (see USING THE COPY  
heating/cooling period 2.  
BUTTON).  
9. ToenterTuesday’sthroughSunday’sheat-  
8. Repeat steps 3 through 7 for Monday’s  
heating/cooling periods 3 and 4.  
HOLD  
ingprograms,usethe  
buttondescribed  
COPY  
NOTE  
ADV  
below, or press  
until the correct day’s  
DAY  
The thermostat has a built-in COPY feature.  
This feature automatically copies the heating  
and cooling programs you select for Monday  
into Tuesday through Sunday’s programs. If  
you want to have the same programming every  
day, after you program Monday’s schedule,  
abbreviation is shown in the display. Re-  
peattheabovestepstoprogrameachday’s  
heating/cooling periods and heating tem-  
peratures.  
10. When you have completed programming  
your heating/cooling periods and heating  
RUN  
you simply press  
to start the thermostat’s  
PRGM  
RUN  
temperatures, press  
operation.  
to begin program  
PRGM  
programmedoperation.Everydaywillthenuse  
the same program you set for Monday. You  
HOLD  
may also choose to use the  
28  
button to copy  
COPY  
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Program Cooling Temperatures  
1. To program cooling temperatures for the  
heating/cooling periods you have already  
CAUTION  
!
SYSTEM  
set, press  
until COOL appears.  
SWITCH  
Ifoutsidetemperatureisbelow50°F, we  
recommendthatyouremovethethermo-  
stat from the wall before proceeding  
with the following steps to program  
cooling temperatures. Personal injury  
or property damage may occur due to  
air conditioner compressor operation  
in cold weather. A fresh 9 volt Ener-  
gizer® alkaline battery must be installed  
to perform off-wall programming. Pro-  
gramming away from the wall should  
prevent accidental compressor opera-  
VIEW  
2. Press  
once. The Monday heating/  
PRGM  
cooling period 1 start time you just pro-  
grammed will appear, and the currently  
programmed cooling temperature (A or B)  
will be displayed.  
3. Press  
or  
todisplaytheCOOLA  
or COOL B temperature you want for  
Monday’s heating/cooling period 1.  
VIEW  
4. Press  
, then select Monday’s COOL A  
PRGM  
SYSTEM  
SWITCH  
or COOL B temperature for period 2.  
tion. USE  
TO TURN THERMO-  
5. Repeatsteps3and4forMonday’sheating/  
cooling periods 3 and 4.  
STATOFFBEFOREREATTACHINGTHE  
THERMOSTAT TO THE SUBBASE!  
29  
href="
ADV  
DAY  
HOLD  
COPY  
6. Press  
to choose other days to pro- tionisnotcompleteuntil  
hasbeenpressed  
gram.Remember,onceyouenterMonday’s TWICE.  
program, Monday’s program is automati-  
cally copied into Tuesday’s through  
Sunday’s programs.  
For most efficient programming, you should  
enter both the heating and cooling programs  
for the day you wish to copy FROM before  
using the COPY function, since the COPY  
function copies the entire day’s programming  
to other days.  
7. After you enter or copy heating and cooling  
RUN  
programs for all 7 days, press  
program operation.  
to begin  
PRGM  
VIEW  
1. Press  
.
PRGM  
Using The COPY Button  
ADV  
DAY  
You can copy the entire heating/cooling pro- 2. Press  
gram into any or all other days’ programs.  
However,youmustperformeachcopyfunction  
separately. Each time you begin a COPY op-  
eration, you must start with the day’s pro-  
gram you wish to copy FROM. A COPY opera-  
until the day you want to copy  
FROM is displayed. If you have not com-  
pleted programming for this day, do so  
before proceeding.  
30  
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6. Repeat the above steps to copy any day’s  
programmingintoanyotherday’sprogram.  
HOLD  
COPY  
3. Press  
once. COPYwillbedisplayed. A  
number from 1 to 7 will also appear, repre-  
senting the day you have selected to copy  
(Monday is 1, Tuesday is 2, Wednesday is  
3, etc.). For example, if in step 2 you se-  
lectedtocopyWednesday’sprogram,when  
RUN  
7. Press  
to begin program operation.  
PRGM  
CHECK YOUR PROGRAMMING  
Follow these steps to check your thermostat  
programming one final time before beginning  
thermostat operation.  
HOLD  
you press  
, COPY 3 will be displayed  
COPY  
(as shown below).  
EXAMPLE:  
SYSTEM  
SWITCH  
1. Press  
until HEAT is displayed.  
VIEW  
ADV  
2. Press and hold  
to view the heating/  
4. Press  
to select the day you want to  
PRGM  
DAY  
cooling period times and heating tempera-  
tures for Monday.  
copy the program TO.  
HOLD  
5. Press  
. COPY will disappear from the  
COPY  
ADV  
3. Press  
once to advance to Tuesday.  
DAY  
display, and the display will show the cop-  
ied heating/cooling time and temperature  
for the day you copied TO.  
31  
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YOURTHERMOSTATISNOWCOMPLETELY  
PROGRAMMEDANDREADYTOAUTOMATI-  
CALLYPROVIDEMAXIMUMCOMFORTAND  
EFFICIENCY!  
VIEW  
4. Press and hold  
to view heating/cool-  
PRGM  
ing periods and heating temperatures for  
Tuesday.  
5. Repeat steps 3 and 4 to review all remain-  
ing days’ programming. If you find an error  
in any day’s programming, go back to the  
programming instructions to correct the er-  
ror (you can change any part of your pro-  
gram while you are reviewing it).  
SYSTEM  
SWITCH  
Press  
until OFF is displayed. Reat-  
tach thermostat to subbase. Then press  
SYSTEM  
SWITCH  
toselecttheoperationmodeyouwant  
(HEAT, COOL, AUTO).  
RUN  
6. Press  
7. Press  
.
PRGM  
NOTE  
SYSTEM  
SWITCH  
When you have completed programming, you  
may set option switches #3 or #4. (see TOTAL  
KEYPAD LOCKOUT and PARTIAL KEYPAD  
LOCKOUT in the OPERATING FEATURES  
section).  
until COOL is displayed.  
8. Repeat steps 2 through 5 to check cooling  
temperatures.  
RUN  
9. Press  
32  
to begin program operation.  
PRGM  
href="
QUESTIONS AND ANSWERS  
1. How can I permanently change a part of  
peratureforperiod2asyoudidforperiod1,  
which means the temperature will not  
change from COOL A when period 2 be-  
gins. See PROGRAMMING YOUR  
THERMOSTAT.  
my program?  
VIEW  
ADV  
DAY  
Press  
and  
until you reach the  
PRGM  
time/temperaturescheduleyouwant. Then  
3. How can I finish my programming if the  
display has already changed to time/  
temperature?  
TIME  
FWD  
TIME  
press  
or  
and  
and  
to  
BACK  
change the program (remember, when you  
change the time, you are changing it for  
both the heating and cooling programs).  
See PROGRAMMING YOUR THERMO-  
STAT.  
During programming, if no buttons are  
pressedforfiveminutes, thethermostatwill  
enter the HOLD mode and maintain a con-  
stant temperature. The display will change  
to the time/temperature mode. To resume  
2. How can I have no change in tempera-  
ture from one time period to another?  
VIEW  
ADV  
DAY  
programming, press  
and  
untilyou  
PRGM  
Simply select the same temperature for  
eachconsecutivetimeperiod.Forexample,  
you may select the same COOL A tem-  
return to the point where you stopped pro-  
33  
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gramming. Then you may continue to pro-  
gram the thermostat normally. If you want  
to stop programming at this point, press  
for about one week with no 24 VAC power  
present to the thermostat. See OPERAT-  
ING YOUR THERMOSTAT.  
RUN  
5. Why can’t I program the thermostat in  
the AUTO mode?  
to start the normal program function.  
PRGM  
See PROGRAMMING YOUR THERMO-  
STAT.  
The thermostat can only be programmed in  
the HEAT and COOL modes. See PRO-  
GRAMMING YOUR THERMOSTAT.  
4. What happens if the electricity goes off  
or is manually shut off?  
6. What can cause the thermostat display  
to freeze or go blank?  
If you have not installed a 9 volt alkaline  
battery, the display will go blank and the  
program will be lost in five seconds. When  
electricity is restored, the thermostat will  
maintainaheatingtemperatureof64°Fand  
a cooling temperature of 82°F until you  
reenter your program. Setpoint tempera-  
ture will not be displayed.  
A completely blank display may indicate  
that power has been lost to the thermostat  
and the backup battery is also dead. How-  
ever, if there is power to the thermostat and  
the display is blank or frozen, static dis-  
charge is probably the cause.  
If a fresh 9 volt Energizer® alkaline battery  
is installed, the program will be maintained  
34  
During periods of low humidity (especially  
during cold weather), you may feel or see a  
href="
spark discharge when you touch the ther-  
mostat. This may cause the program to be  
lost or the thermostat to display incorrectly.  
Tocorrectthis, removethethermostatfrom  
the wall and disconnect the battery. Wait  
about two minutes, then reconnect the bat-  
tery. The thermostat will revert to the fac-  
torypresetprogramuntilyoureprogramthe  
thermostat. If you don’t want to reprogram  
To prevent further static discharge prob-  
lems, touch another object to release static  
build-up before touching the thermostat.  
See OPERATING YOUR THERMOSTAT.  
7. Why won’t the setpoint temperature go  
to the temperature I want?  
The highest heating setpoint temperature  
you select must be at least 1°F lower than  
the lowest cooling setpoint temperature  
you select (for example, if 70°F is your  
lowest selected cooling temperature, you  
cannot select a heating temperature any  
higher than 68°F). If such a conflict exists,  
you must set the lowest cooling tempera-  
ture higher in order to set the heating tem-  
perature higher. To set a lower cooling  
temperature, you must select a lower heat-  
ing temperature. See PROGRAMMING  
YOUR THERMOSTAT.  
SYSTEM  
SWITCH  
thethermostatimmediately, press  
until OFF is displayed and replace the ther-  
SYSTEM  
SWITCH  
mostat on the wall. Then press  
until HEAT, COOL, etc. is displayed, and  
RUN  
press  
to begin the factory preset pro-  
PRGM  
gram. Or you may reprogram the thermo-  
stat, then replace it on the wall.  
35  
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8. Why doesn’t the display light come on  
when I press a button? Why don’t I hear  
a beep when I press a button?  
Either the compressor lockout feature is in  
operation or the thermostat is not currently  
calling for heat or cool. Wait about 5 min-  
utes for the compressor lockout to expire. If  
the system is still not running, read the  
cautionary statement below. If conditions  
Thedisplaylightandaudioprompting(beep)  
only work when the thermostat is on the  
wall and 24 VAC power is present to the  
thermostat. These features will not work on  
battery power alone. See OPERATING  
YOUR THERMOSTAT.  
permit, use  
or  
to move the  
temperature above or below the setpoint  
temperature. See OPERATING YOUR  
THERMOSTAT.  
9. The display is flashing BATTERY. What  
does this mean?  
The9voltbatteryinstalledinthethermostat  
is low and should be replaced with a fresh  
9 volt Energizer® alkaline battery. See OP-  
ERATING YOUR THERMOSTAT.  
CAUTION  
!
Iftheoutsidetemperatureisbelow50°F,  
DO NOT use to move the tempera-  
ture below the setpoint temperature.  
Propertydamagemayresultduetocom-  
pressor operation in cold weather.  
10. Why won’t the system turn on, even  
though the thermostat display is func-  
tioning normally?  
36  
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11. Why doesn’t the temperature change at  
the time I programmed?  
• You have programmed the incorrect day  
or time. Check your programming (be  
sure that the times you programmed are  
correct AM or PM times). See PRO-  
GRAMMING YOUR THERMOSTAT.  
There may be a number of causes for this  
situation. The following are primary rea-  
sons.  
• The thermostat is in the HOLD mode.  
• TheEMRfunctionisoperating.TheEMR  
function will automatically bring on the  
system automatically to bring the tem-  
perature to the selected level by the  
beginning of the next program period.  
See OPERATING YOUR THERMO-  
STAT.  
RUN  
Press  
to start program operation.  
PRGM  
See OPERATING YOUR THERMO-  
STAT.  
• The compressor lockout feature is oper-  
ating; wait about 5 minutes for system to  
begin running. See OPERATING YOUR  
THERMOSTAT.  
37  
12. Why does the blower fan keep running 13. Why is the system turning on and off so  
after the system has turned off?  
frequently (seldom)?  
• You have programmed the fan to run  
continuously during this period. See  
PROGRAMMING YOUR THERMO-  
STAT.  
Theanticipationsettingistoolow(high). To  
change anticipation settings, see OPER-  
ATING YOUR THERMOSTAT.  
• The blower delay feature is operating.  
This energy saving feature continues to  
blow conditioned air through the ducts  
after the system has turned off, rather  
than letting the air dissipate.  
38  
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NOTES  
39  
href="
If you need further information on programming or operation, you may  
write to us at:  
White-Rodgers Division, Emerson Electric Co.  
9797 Reavis Road  
St. Louis, MO 63123-5398  
Attention: Technical Service Department  
WHITE-RODGERS DIVISION  
EMERSON ELECTRIC CO.  
9797 REAVIS ROAD  
Part No. 37-4500C  
Replaces 37-4500B  
9602  
ST. LOUIS, MISSOURI 63123-5398