White Rodgers 1F94W 71 Thermostat User Manual

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OPERATION GUIDE  
1F94W-71  
7 Day Multi-stage/Heat Pump  
Electronic Digital Thermostat  
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/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.  
Please read this manual thoroughly before operating or programming your thermostat. If you have  
questions, you may write to our Technical Service Department at the address shown on the back  
cover of this booklet.  
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In This Guide . . .  
YOUR NEW THERMOSTAT’S  
Program Heating/Cooling Times  
and Heating Temperatures  
Program Cooling Temperatures  
Using the HOLD/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  
• Adjustable cycle times  
(EMR)  
• Compressor short cycle protection  
• Compressor long term cycle protection  
• Blower delay in the cooling cycle  
• Audio and visual prompting during operation  
• Two hour temperature override  
• Automaticchangeover(operator-selectable)  
• Separate setback programming for 7 inde-  
pendent days  
• Simultaneousheatandcoolprogramstorage  
• Fourseparatetime/temperaturesettingsper  
24-hour period  
• Manual program override (HOLD tem-  
perature)  
• Armchair programming capability  
°F/°C convertibility  
• Up to 3 stages of heat and up to 2 stages of  
cool  
• Keypad lockout (operator-selectable)  
• Temperature range 40° to 99°F  
• Backlit LCD displays continuous set point,  
time, and room temperature  
• 9 volt Energizer® alkaline battery backup  
• Compatible with Remote Sensor (installer-  
selectable)  
• Preprogrammed temperature control  
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OPERATINGYOURTHERMOSTAT  
Before you begin programming your thermo- The subbase is attached to the wall, but you can  
stat, you should be familiar with its features and remove the thermostat body for easy program-  
with the display and the location and operation ming. To remove the thermostat body from the  
of the thermostat buttons. The information in subbase, grasp the thermostat body and gently  
this section will help you become familiar with pull it out from the bottom of the subbase and  
your new thermostat so that you can easily pivot up. To attach the thermostat body, line up  
program it.  
the four terminal pins on the upper section of the  
thermostatbackwiththematchingconnectoron  
the subbase. Insert these, then gently pivot the  
thermostat body down to connect the eight pin  
connectors on the lower portion of the thermo-  
stat back. Gently push until the snap connectors  
engage. DO NOT FORCE OR PRY THE THER-  
MOSTAT as this may damage the unit.  
Your thermostat consists of two parts: the ther-  
mostat body and the subbase.  
CAUTION  
!
SYSTEM  
Use  
to turn thermostat OFF be-  
HEAT/EMER/OFF/  
COOL/AUTO  
fore removing or attaching the thermo-  
statbody.Equipmentdamageand/orper-  
sonal injury could occur.  
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If the word BATTERY is flashing in the  
displaywindow,thebatteryislowandshould  
be replaced with a fresh 9 volt Energizer®  
alkaline battery. The battery will provide  
power for all functions except the display  
light, which works only on 24 VAC power.  
PARTS OF THE THERMOSTAT  
The Back of The Thermostat Body  
Turn the thermostat body over. On the back are  
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 24  
VACpowerisinterrupted(forexample,when  
you remove the thermostat from the wall for  
programming). A fresh battery will maintain  
thestoredprogramforapproximatelyaweek.  
If power loss is long enough for the program  
to be lost, the thermostat will automatically  
return to the factory programmed tempera-  
tures (64°F heating and 82°F cooling) when  
power is restored. You must reprogram the  
thermostat if this happens.  
4-pin connector  
Battery  
W18  
Option switches  
9-pin connector  
BACK OF THERMOSTAT BODY  
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Other than  
and  
, the buttons are lo-  
CAUTION  
!
cated 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.  
Following are brief descriptions of the display  
and the thermostat buttons.  
SYSTEM  
Use  
HEAT/EMER/OFF/  
COOL/AUTO  
to turn thermostat OFF be-  
fore removing thermostat from the wall  
to replace the battery.  
2. You may adjust the option switches for  
keypad lockout and automatic changeover  
from heat to cool (see OPERATING FEA-  
TURES).  
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VIEW  
TEMP  
The Display  
When  
is pressed, A is displayed when  
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Continuouslydisplayssystemmode(HEAT,  
1
2
3
the setpoint temperature displayed (at the  
far right) is the 1st programmed heating or  
cooling temperature (depending on mode).  
B is displayed when the 2nd programmed  
heating or cooling temperature is being dis-  
played.  
EMER, OFF, COOL, AUTO, HOLD). Dur-  
ing programming, the day of the week is  
displayed (MO, TU, WE, etc.).  
Alternately displays room temperature (F  
denotesdegreesFahrenheitand Cdenotes  
degrees Celsius) and time of day (A de-  
notes AM time and P denotes PM time).  
FAN ON is displayed when the blower is  
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operating continuously. FAN AUTO is dis-  
playedduringautomaticfanoperation(when  
theblowercycleswiththeheatingorcooling  
system).  
Displays the setpoint temperature.  
The word BATTERY flashes on the display  
when the 9 volt alkaline battery power is  
weak and should be replaced.  
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EMER. PUMP  
MALF. AUX.  
5 DAY  
FAN AUTO  
TIME  
FWD  
SET  
VIEW  
HOLD  
SYSTEM  
HEAT/EMER/OFF/  
COOL/AUTO  
CLOCK  
PRGM  
COPY  
TIME  
ADV  
DAY  
VIEW  
TEMP  
RUN  
FAN  
ON-AUTO  
BACK  
PRGM  
1
2
3
3
2 DAY  
FAN AUTO  
5 DAY  
BAT  
FAN ON  
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4
4
5
2
6
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TIME  
FWD  
TIME  
The Thermostat Buttons  
Used with  
and  
to select setpoint  
13  
14  
BACK  
Sets the system mode (HEATing, OFF,  
COOLing, or AUTOmatic changeover).  
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temperatures.  
Used to manually override programming to  
Selects fan operation (see #5, above).  
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holdataselectedtemperature(whenHOLD  
is displayed). Also used to copy one day’s  
programming to another day (when COPY  
is displayed).  
Runs display forward or backward through  
time, day, or anticipation settings during  
programming.  
Used to start program operation after pro-  
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TIME  
FWD  
TIME  
Usedwith  
and  
tosetcurrenttime  
10  
11  
12  
BACK  
gramming.Alsousedtoreturnthermostatto  
program operation after being in HOLD  
mode.  
and day of the week.  
Used during programming to set the day of  
the week to be programmed.  
(Red arrow) Raises temperature setting  
16  
17  
(99°F or 37°C maximum).  
Usedtoinitiateorreviewprogramming(pro-  
gram viewing automatically begins with  
(Blue arrow) Lowers temperature setting  
ADV  
(40°F or 4°C minimum).  
Monday’sprogram;use  
buttontoview  
DAY  
programming for following days).  
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fer to heat pump manufacturer’s operating  
manual).Acontinuous(non-flashing)PUMP  
light indicates that the heat pump compres-  
sor is functioning — a flashing PUMP light  
indicates that the compressor is locked out.  
AUXlightindicatesthattheauxiliarysystem  
is operating.  
EMER light indicates that the system is in  
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the emergency mode (the heat pump com-  
pressor is off and the auxiliary heat system  
is maintaining the setpoint temperature —  
there is a 5- to 10-minute startup delay on  
the first emergency cycle). MALF light indi-  
cates a heat pump system malfunction (re-  
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18  
EMER. PUMP  
MALF. AUX.  
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DAY  
FAN  
TIME  
FWD  
SET  
CLOCK  
VIEW  
PRGM  
HOLD  
COPY  
SYSTEM  
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8
HEAT/EMER/OFF/  
COOL/AUTO  
TIME  
BACK  
ADV  
DAY  
VIEW  
TEMP  
RUN  
PRGM  
FAN  
ON-AUTO  
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10 11 12 13 14 15  
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period, beginning at 6:00 AM, you have  
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 informa-  
tion to learn about the many features of the  
thermostat.  
COMPUTED ENERGY MANAGEMENT  
RECOVERY (EMR) — The thermostat’s  
microcomputerautomaticallycalculatesthe  
timeitwilltaketochangethetemperatureto  
the next program setting. Then the thermo-  
stat will activate the heating or cooling sys-  
tem to change the temperature so that the  
desired temperature is reached at the be-  
ginning of the next program period. As an  
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  
AUTOMATIC CHANGEOVER — You can  
set the thermostat to automatically switch  
the system from heating to cooling as  
needed. First you must move option switch  
#4 (located on the back of the thermostat  
body)totheONposition, ifithasnotalready  
SYSTEM  
been done. To do this, press HEAT/EMER/OFF/ to turn  
COOL/AUTO  
thermostat OFF. Then remove the thermo-  
stat body from the wall. Check the position  
of switch #4 (the last switch on the right). If  
it is ON (up), simply put the thermostat back  
on the wall. If the switch is OFF (down),  
remove the battery, then use a pencil or  
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small screwdriver to move the switch to the  
ON position (see figure at right). Leave the  
battery out of the thermostat for at least two  
minutes, to allow the thermostat to reset  
itself.DONOTMOVEOPTIONSWITCHES  
#1 OR #2, as this may affect thermostat  
operation. [Option switch #3 enables/dis-  
ables keypad lockout (see TOTAL KEY-  
PAD LOCKOUT)]. Replace the battery, re-  
program the thermostat, if necessary, put  
the thermostat back on the wall, and restore  
24 VAC power. To set the thermostat for  
automatic changeover after programming,  
SYSTEM  
Automatic Changeover  
ON  
1
2
3
4
Switch #1 set at installation (DO NOT CHANGE)  
Switch #2 set at installation (DO NOT CHANGE)  
Switch #3 (see TOTAL KEYPAD LOCKOUT)  
Switch #4 ON  
In the AUTO mode, the thermostat will not  
allow the temperature separation between  
the highest heat setting and the lowest cool  
setting to be less than 1°F. For example, if  
the highest heat setting is 76°F, the lowest  
cool setting cannot be below 77°F (see  
press HEAT/EMER/OFF/ tosetthethermostattoAUTO  
COOL/AUTO  
(thesetpointtemperaturedisplayisblankin  
the AUTO mode). The system will now  
automatically switch between heating and  
cooling, depending on the actual room tem-  
perature.  
diagram below).  
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COOLING TEMPERATURES  
78  
77  
76  
75  
DEAD BAND 1°F  
HEATING TEMPERATURES  
74  
73  
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TWO HOUR TEMPERATURE OVER-  
RIDE — Press or untilthedisplay  
the building is unoccupied for an extended  
period of time.  
shows the temperature you want. The ther-  
mostat will override current programming  
and keep the room temperature at the se-  
lected temperature for two hours. After two  
hours, the thermostat will automatically re-  
vert to the program.  
TIME  
°F/°C CONVERTIBILITY — Press  
FWD  
TIME  
and  
at the same time until the tem-  
BACK  
perature display is in °C (Celsius). To dis-  
play °F, repeat the process.  
ADJUSTABLE HEATING AND COOLING  
CYCLE TIMES (ANTICIPATION) — If the  
heating/cooling system is turning on and off  
too often (short cycles) or not often enough  
(long cycles), you may want to adjust the  
anticipation setting.  
HOLD TEMPERATURE — The thermostat  
can hold any temperature within its range  
for an indefinite period, without reverting to  
HOLD  
the program. Press  
displayed. Then choose the desired hold  
temperature by pressing or . The  
. HOLD will be  
COPY  
CAUTION  
!
thermostat will hold the room temperature  
RUN  
A cooling anticipation setting of less  
than 10 may cause decreased compres-  
sor life.  
at the selected setting until you press  
PRGM  
to start program operation again. This fea-  
ture is ideal for energy conservation when  
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SET  
ADV  
DAY  
To adjust heat anticipation, press  
and  
at the same time again. The display  
CLOCK  
ADV  
willshowCOOL14(factorypreprogrammed  
at the same time. The display will  
DAY  
TIME  
cooling anticipation). Use the  
and  
FWD  
show HEAT 18 (this is the factory prepro-  
grammed heating anticipation setting). You  
may select any anticipation setting from 4 to  
40 (note that for add-on heat pump sys-  
tems, a minimum anticipation setting of  
10 is recommended). Whenever adjusting  
anticipation, increase or decrease the dis-  
played number by only one or two digits,  
then let the system run for a while to see if  
theadjustmentissufficient.Iftheheatcycles  
TIME  
TIME  
buttons to adjust anticipation. To set  
BACK  
SET  
auxiliary heat anticipation, press  
and  
CLOCK  
ADV  
DAY  
at the same time again. The display  
will show AUX 8 (factory preprogrammed  
TIME  
cooling anticipation). Use the  
and  
FWD  
TIME  
buttons to adjust anticipation. Press  
to return to your program.  
BACK  
RUN  
are too short, press  
to increase the  
FWD  
PRGM  
cycle time. If the heat cycles are too long,  
LOW BATTERY INDICATOR — The word  
BATTERY will flash on the display if the 9  
volt alkaline battery is low and should be  
replaced.  
TIME  
press  
to decrease the cycle time. To  
BACK  
SET  
set cooling anticipation, press  
and  
CLOCK  
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AUDIO PROMPTING — Each time you  
pressabutton,thethermostatwillbeep(this  
feature works only when the thermostat is  
attached to the wall and 24 VAC power is  
present to the thermostat).  
between heat pump heating and cooling  
cycles. The following may cause a time  
delay in COOL:  
a) Return of power after a power outage.  
SYSTEM  
b) Pressing  
modes.  
to change operating  
HEAT/EMER/OFF/  
COOL/AUTO  
BACKLIT DISPLAY — When you press  
any button on the thermostat, the display is  
lit for approximately eight seconds (this fea-  
ture works only when the thermostat is  
attached to the wall and 24 VAC power is  
present to the thermostat).  
c) Pressing  
or , creating a call  
for HEAT or COOL too soon after a  
previous call.  
COMPRESSOR LONG TERM CYCLE  
PROTECTION — If your system begins to  
operate too soon after an extended power  
outage, the compressor may be damaged  
due to crankcase oil temperature change.  
This thermostat has a built-in time delay of  
one hour less than the length of the power  
loss (up to 12 hours). When power is re-  
stored to the system, heaters in the system  
SYSTEM INDICATOR LIGHTS — The four  
lights on the upper right part of the thermo-  
stat indicate system operation (see PARTS  
OF THE THERMOSTAT).  
COMPRESSORSHORTCYCLEPROTEC-  
TION — To protect your compressor from  
potential damage due to rapid cycling, this  
thermostat has a built-in delay of 5 minutes  
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will begin to heat the crankcase oils. The  
thermostat’s time delay will lock out the  
compressortopreventitsoperationuntilthe  
compressor oil is sufficiently warmed. Dur-  
ing the lockout time period, the auxiliary  
heating system will operate to maintain a  
setpoint temperature.  
Total Keypad Lockout  
ON  
1
2
3
4
Switch #1 set at installation (DO NOT CHANGE)  
Switch #2 set at installation (DO NOT CHANGE)  
Switch #3 ON  
For example, if a power outage of three  
hoursoccurs, thecompressorwillbelocked  
out for two hours.  
Switch #4 (see AUTOMATIC CHANGEOVER)  
Switches #1 and #2 are set at installation  
and should not be changed. To enable total  
keypad lockout, move option switch #3 to  
ON (see figure above). DO NOT MOVE  
OPTIONSWITCHES#1OR#2,asthismay  
affect thermostat operation [option switch  
#4 enables/disables automatic changeover  
(see AUTOMATIC CHANGEOVER)]. To  
disable total keypad lockout, move option  
switch #3 to OFF.  
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.  
NOTE  
Programming should be completed and bat-  
tery should be installed before changing op-  
tion switch #3.  
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PROGRAMMINGYOURTHERMOSTAT  
Now you are ready to program your thermostat. thermostatforacommercialapplication(astore,  
This section will help you plan your thermostat’s officebuilding,etc.),answerquestions1through  
program to meet your needs.  
For maximum comfort and efficiency, keep the  
4. If you are using the thermostat in your home,  
answer questions 5 through 8.  
following guidelines in mind when planning your FOR COMMERCIAL APPLICATIONS:  
program.  
1a. What time does the first person arrive at the  
building in the morning?  
• When heating (cooling) your building, pro-  
gramthetemperaturestobecooler(warmer)  
when the building is vacant or during peri-  
ods of low activity.  
b. What temperature should the building be at  
this time? (heating? cooling?)  
2a. What time do the building occupants reach  
amaximumactivitylevel(usinglights,equip-  
ment, meeting rooms, etc.)?  
• During early morning hours, the need for  
cooling is usually minimal.  
b. What temperature should the building be at  
this time?  
PLANNING FOR YOUR NEEDS  
First, answer the following questions to help you  
decide what your needs are. If you are using the  
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3a. What time do the building occupants reach 7a. What time does the first person arrive home  
a minimum activity level (limited personnel  
in building)?  
in the evening?  
b. What temperature should the house be at  
this time?  
b. What temperature should the building be at  
this time?  
8a. What time does the last person go to bed at  
night?  
4a. Whattimedoesthebuildingbecomevacant?  
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 the  
morning?  
Now look at the factory preprogrammed times  
and temperatures shown on the following  
page. If this program will suit your needs,  
RUN  
b. What temperature should the house be at simply press  
to begin running the factory  
PRGM  
this time?  
preset program.  
6a. What time does the last person leave the  
house in the morning?  
b. What temperature should the house be at  
this time?  
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FACTORY PREPROGRAMMING  
Cooling Program for ALL Days of the Week:  
Heating Program for ALL days of the Week:  
TEMP  
78°F  
82°F  
78°F  
78°F  
PERIOD  
TIME  
TEMP  
70°F  
70°F  
70°F  
64°F  
PERIOD  
TIME  
1
2
3
4
5:00 AM  
9:00 AM  
4:00 PM  
10:00 PM  
1
2
3
4
5:00 AM  
9:00 AM  
4:00 PM  
10:00 PM  
If you want to change the preprogrammed times  
and temperatures, follow these steps.  
1. Determine the heating and cooling tem-  
peratures you want to use. You may select  
up to four heating temperatures (HEAT A,  
HEAT B, HEAT C, and HEAT D), and up to  
fourcoolingtemperatures(COOLA, COOL  
B, COOL C, COOL D). Use the table at the  
right to write down the temperatures you  
have selected.  
Your  
Selected  
Temperature  
Factory  
Preprogrammed  
Temperature  
Temperature  
Designation  
HEAT A  
HEAT B  
HEAT C  
HEAT D  
70°F  
64°F  
---  
---  
COOL A  
COOL B  
COOL C  
COOL D  
78°F  
82°F  
---  
---  
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you can only program one set of times for  
bothheatingandcooling(forexample,ifyou  
select 5:00 AM to begin heating period 1 on  
Monday, then your cooling period 1 for  
Monday will also begin at 5:00 AM). How-  
ever, youmaychoosedifferenttimeperiods  
for each day separately (for example, heat-  
ing/cooling period 1 on Monday may begin  
at 5:00 AM, but heating/cooling period 1 on  
Saturday may begin at 9:00 AM). Use the  
following table to plan your program 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 pro-  
grammed.  
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).  
79  
COOLING TEMPERATURES  
78  
77  
76  
75  
DEAD BAND 1°F  
HEATING TEMPERATURES  
74  
73  
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,  
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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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Joe's Restaurant  
Closed Mon.  
Open Tues.-Sat. 10:30 AM–10:00 PM  
Open Sun. 6:30 AM–2:00 PM  
HEAT A = 65°F COOL A = 80°F  
HEAT B = 68°F COOL B = 78°F  
HEAT C = 70°F COOL C = 76°F  
HEAT D = 72°F COOL D = 74°F  
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 AM 65° (A) 80° (A) 9:00 AM 65° (A) 80° (A) 3:30 PM 65° (A) 80° (A) 11:30 PM 65° (A) 80° (A)  
5:00 AM 65° (A) 80° (A) 9:00 AM 70° (C) 76° (C) 3:30 PM 72° (D) 74° (D) 11:30 PM 65° (A) 80° (A)  
Wednesday 5:00 AM 65° (A) 80° (A) 9:00 AM 70° (C) 76° (C) 3:30 PM 72° (D) 74° (D) 11:30 PM 65° (A) 80° (A)  
Thursday  
Friday  
5:00 AM 65° (A) 80° (A) 9:00 AM 70° (C) 76° (C) 3:30 PM 72° (D) 74° (D) 11:30 PM 65° (A) 80° (A)  
5:00 AM 65° (A) 80° (A) 9:00 AM 70° (C) 76° (C) 3:30 PM 72° (D) 74° (D) 11:30 PM 65° (A) 80° (A)  
5:00 AM 65° (A) 80° (A) 9:00 AM 70° (C) 76° (C) 3:30 PM 72° (D) 74° (D) 11:30 PM 65° (A) 80° (A)  
5:00 AM 70° (C) 78° (B) 9:00 AM 70° (C) 76° (C) 3:30 PM 68° (B) 76° (C) 11:30 PM 65° (A) 80° (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  
We recommend that you remove the thermostat  
from the wall for programming (especially for  
entering cooling programming). A fresh 9 volt  
Energizer® alkaline battery must be installed to  
perform off-wall programming. BE SURE SYS-  
TEM SWITCH IS SET TO OFF POSITION BE-  
FORE REATTACHING THERMOSTAT TO  
SUBBASE!  
TIME  
FWD  
TIME  
2. Pressandholdeither  
or  
untilyou  
BACK  
reach the correct minutes.  
SET  
3. Press  
once. The display window will  
CLOCK  
show the hour only.  
EXAMPLE:  
TIME  
FWD  
TIME  
4. Pressandholdeither  
or  
untilyou  
BACK  
You cannot program the thermostat with the  
SYSTEM SWITCH in the AUTO position.  
reachthecorrecthourandAM/PMdesigna-  
tion (AM begins at midnight; PM begins at  
noon).  
24  
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SET  
youareatthepointwhereyoustoppedprogram-  
ming. hen you may continue to enter your pro-  
gram normally. If you want to stop programming  
RUN  
5. Press  
once. The display will show the  
CLOCK  
day of the week as an abbreviation (MO for  
Monday, TU for Tuesday, etc.).  
at any time, simply press  
gram operation.  
SYSTEM  
to resume pro-  
PRGM  
TIME  
FWD  
TIME  
6. Pressandholdeither  
or  
untilyou  
BACK  
reach the current day of the week.  
1. Press  
HEAT/EMER/OFF/  
COOL/AUTO  
until HEAT is displayed.  
RUN  
7. Press  
once. The display will show the  
PRGM  
VIEW  
2. Press  
once. The display will continue  
TEMP  
correct time and room temperature alter-  
nately.  
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.  
Program Heating/Cooling Temperatures  
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. The display will revert to the alter-  
natingtime/temperaturedisplay.Toresumepro-  
VIEW  
3. Press either  
or  
to change the  
temperature to your selected HEAT A  
setting.  
gramming after this happens, press  
until  
PRGM  
25  
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VIEW  
TEMP  
VIEW  
TEMP  
4. Press  
once. TheletterAwillchangeto 11. Press  
once. Press  
or  
to set  
the letter B, representing HEAT B.  
your selected COOL B setting.  
5. Press either or to change the 12. Repeat step 11 to select COOL C and  
temperature to your selected HEAT B  
COOL D temperature settings.  
setting.  
RUN  
13. Press  
.
PRGM  
6. Repeat steps 4 and 5 to select HEAT C and  
HEAT D temperature settings.  
Program Heating/Cooling Times and  
Heating Temperatures  
RUN  
7. Press  
8. Press  
9. Press  
.
PRGM  
SYSTEM  
1. Press  
HEAT/EMER/OFF/  
COOL/AUTO  
until HEAT is displayed.  
SYSTEM  
until COOL is displayed.  
HEAT/EMER/OFF/  
COOL/AUTO  
VIEW  
2. Press  
once. MO, the abbreviation for  
PRGM  
VIEW  
TEMP  
once. The display will show  
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/  
cooling period 1 and the currently pro-  
grammed HEAT A, B, C, or D temperature  
for heating/cooling period 1.  
COOL and A, representing the first pro-  
grammed cooling temperature (COOL A).  
10. Press either  
or  
to change the  
temperature to your selected COOL A set-  
ting.  
26  
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you continue to press  
or  
, the  
EXAMPLE:  
display will alternately display the HEAT A,  
B, C, or D temperatures you previously  
selected).  
ThisdisplaywindowshowsthatforMonday’s  
heating/cooling period 1, the start time is  
5:00 AM, and 70° is the programmed tem-  
perature (this example reflects factory pre-  
programming, where 70° is the HEAT A  
temperature).  
5. Afterselectingthedesiredheatingtempera-  
ture for heating/cooling Monday’s period 1,  
VIEW  
press  
.Thecurrentlyprogrammedstart  
PRGM  
time and heating temperature for Monday’s  
heating/cooling period 2 will be displayed.  
3. To change the displayed start time to your  
selected start time for Monday’s period 1,  
TIME  
TIME  
6. Repeat steps 3 and 4 to select the start time  
andheatingtemperatureforMonday’sheat-  
ing/cooling period 2.  
press  
or  
until your selected time  
FWD  
BACK  
appears. The time will change in 15 minute  
increments. The time you select will be  
the start time of Monday’s period 1 for  
both heating and cooling.  
7. Repeat steps 3 through 6 for Monday’s  
heating/cooling periods 3 and 4.  
4. IfthetemperaturedisplayedisnottheHEAT  
A, B, C, or D temperature you want for  
Monday’s period 1, press  
or  
(if  
27  
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8. To enter Tuesday’s through Sunday’s heat-  
NOTE  
HOLD  
ing programs, use the  
button (see  
COPY  
Thethermostathasabuilt-inCOPYfeature.  
This feature automatically copies the  
heating and cooling programs you se-  
lect for Monday into Tuesday through  
Sunday’s programs. If you want to have  
the same programming every day, after you  
program Monday’s schedule, you simply  
RUN  
USING THE HOLD/COPY BUTTON), or  
ADV  
press  
until the correct day’s abbrevia-  
DAY  
tion appears in the display. Repeat the  
abovestepstoprogrameachday’sheating/  
cooling periods and heating temperatures.  
9. When you have completed programming  
press  
to start the thermostat’s pro-  
PRGM  
your heating/cooling periods and heating  
grammedoperation. Everydaywillthenuse  
the same program you set for Monday.  
RUN  
temperatures, press  
.
PRGM  
HOLD  
You may also choose to use the  
COPY  
button to copy any day’s heating and cool-  
ing program into any other day’s program  
(see USING THE HOLD/COPY BUTTON).  
28  
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Program Cooling Temperatures  
1. To program cooling temperatures for the  
heating/cooling periods you have already  
SYSTEM  
CAUTION  
!
set, press HEAT/EMER/OFF/ until COOL is displayed.  
COOL/AUTO  
If outside temperature is below 50°F, we  
recommendthatyouremovethethermo-  
statfromthewallbeforeproceedingwith  
the following steps to program cooling  
temperatures. Personal injury or prop-  
erty damage may occur due to air condi-  
tioner compressor slugging. A fresh 9  
volt Energizer® alkaline battery must be  
installed to perform off-wall program-  
ming. Programming away from the wall  
should prevent accidental compressor  
SYSTEM  
VIEW  
2. Press  
once. The Monday heating/  
PRGM  
cooling period 1 start time you just pro-  
grammed will appear, and the currently pro-  
grammed cooling temperature (A, B, C, or  
D) will be displayed.  
3. Press  
or  
to display the COOL A,  
B,C,orDtemperatureyouwantforMonday’s  
heating/cooling period 1.  
VIEW  
4. Press  
, then press  
or  
to  
PRGM  
select Monday’s COOL A, B, C, or D tem-  
perature for period 2.  
operation. USE HEAT/EMER/OFF/ TO TURN THER-  
COOL/AUTO  
MOSTAT OFF BEFORE REATTACHING  
THE THERMOSTAT TO THE SUBBASE!  
5. Repeat steps 3 and 4 for Monday’s heating/  
cooling periods 3 and 4.  
29  
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HOLD  
COPY  
ADV  
DAY  
6. Use the  
button, or press  
to  
NOTE  
choose other days to program. Remember,  
once you enter Monday’s program,  
Monday’s program is automatically copied  
intoTuesday’sthroughSunday’sprograms.  
For most efficient programming, you should  
enter both the heating and cooling programs for  
thedayyouwishtocopyFROMbeforeusingthe  
COPYfunction, sincethe COPYfunctioncopies  
the entire day’s programming to other days.  
VIEW  
7. After you enter or copy heating and cooling  
RUN  
programs for all 7 days, press  
program operation.  
to begin  
PRGM  
1. Press  
.
PRGM  
ADV  
DAY  
2. Press  
until the day you want to copy  
Using The HOLD/COPY Button  
FROM is displayed. If you have not com-  
pleted programming for this day, do so  
before proceeding.  
You can copy the entire heating/cooling pro-  
gram into any or all other days’ programs. How-  
ever, you must perform each copy function  
HOLD  
separately. Eachtimeyoubegina COPYopera- 3. Press  
once. COPY will appear on the  
COPY  
tion, you must start with the day’s program you  
wish to copy FROM. A COPY operation is not  
display. A number from 1 to 7 will also  
appear, representing the day you have se-  
lected to copy (Monday is 1, Tuesday is 2,  
Wednesday is 3, etc.). For example, if in  
HOLD  
complete until  
has been pressed TWICE.  
COPY  
30  
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step 2 you selected to copy Wednesday’s  
CHECK YOUR PROGRAMMING  
HOLD  
program, when you press  
, COPY 3  
Follow these steps to check your thermostat  
programming one final time before beginning  
thermostat operation.  
COPY  
will appear in the display (as shown below).  
EXAMPLE:  
SYSTEM  
1. Press  
HEAT/EMER/OFF/  
COOL/AUTO  
until HEAT is displayed.  
ADV  
4. Press  
to select the day you want to  
DAY  
VIEW  
2. Press and hold  
to view the heating/  
PRGM  
copy the program TO.  
cooling period times and heating tempera-  
tures for Monday.  
HOLD  
5. Press  
. COPY will disappear from the  
COPY  
display, andthedisplaywillshowthecopied  
heating/cooling time and temperature for  
the day you copied TO.  
ADV  
3. Press  
once to advance to Tuesday.  
DAY  
VIEW  
4. Press and hold  
to view heating/cool-  
PRGM  
6. Repeat the above steps to copy any day’s  
programming into any other day’s program.  
ing periods and heating temperatures for  
Tuesday.  
RUN  
7. Press  
to begin program operation.  
PRGM  
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  
31  
href="
to the programming instructions to correct YOURTHERMOSTATISNOWCOMPLETELY  
the error.  
PROGRAMMEDANDREADYTOAUTOMATI-  
CALLYPROVIDEMAXIMUMCOMFORTAND  
EFFICIENCY!  
RUN  
6. Press  
7. Press  
.
PRGM  
SYSTEM  
SYSTEM  
until COOL is displayed.  
HEAT/EMER/OFF/  
COOL/AUTO  
Press HEAT/EMER/OFF/ until OFF is displayed. Reattach  
COOL/AUTO  
SYSTEM  
8. Repeat steps 2 through 5 to check cooling  
temperatures.  
thermostat to subbase. Then press  
HEAT/EMER/OFF/  
COOL/AUTO  
to  
select the operation mode you want (HEAT,  
COOL, AUTO).  
RUN  
9. Press  
to begin program operation.  
PRGM  
NOTE  
When you have completed programming, you  
maysetoptionswitch#3 (seeTOTALKEYPAD  
LOCKOUT in the OPERATING FEATURES  
section).  
32  
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QUESTIONS AND ANSWERS  
1. How can I permanently change a part of  
whichmeansthetemperaturewillnotchange  
from COOL A when period 2 begins. See  
PROGRAMMING YOUR THERMOSTAT.  
my program?  
VIEW  
Press  
until you reach the time/tem-  
PRGM  
3. How can I finish my programming if the  
display has already changed to time/  
temperature?  
perature schedule you want. Then press  
TIME  
TIME  
or  
and  
and  
to change  
FWD  
BACK  
the program (remember, when you change  
the time, you are changing it for both the  
heating and cooling programs). See PRO-  
GRAMMING YOUR THERMOSTAT.  
During programming, if no buttons are  
pressed for five minutes, the thermostat will  
enter the HOLD mode and maintain a con-  
stant temperature. The display will change  
to the time/temperature mode. To resume  
VIEW  
2. How can I have no change in tempera-  
ture from one time period to another?  
programming,press  
untilyoureturnto  
PRGM  
Simply select the same temperature for  
eachconsecutivetimeperiod. Forexample,  
youmayselectthesameCOOLA tempera-  
ture for period 2 as you did for period 1,  
the point where you stopped programming.  
Then you may continue to program the  
thermostat normally. If you want to stop  
33  
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RUN  
5. Why can’t I program the thermostat in  
the AUTO mode?  
programming at this point, press  
to  
PRGM  
startthenormalprogramfunction.SeePRO-  
GRAMMING YOUR THERMOSTAT.  
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  
maintain a heating temperature of 64°F and  
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.  
During periods of low humidity (especially  
during cold weather), you may feel or see a  
spark discharge when you touch the ther-  
mostat. This may cause the program to be  
lost or the thermostat to display incorrectly.  
If a fresh 9 volt Energizer® alkaline battery is  
installed, the program will be maintained for  
about one week with no 24 VAC power  
present to the thermostat. See OPERAT-  
ING YOUR THERMOSTAT.  
34  
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To correct this, remove the thermostat from 7. Why won’t the setpoint temperature go  
the wall and remove the battery for at least  
two minutes. After reinstalling the battery,  
the thermostat will revert to the factory pre-  
set program until you reprogram the ther-  
mostat. If you don’t want to reprogram the  
SYSTEM  
to the temperature I want?  
In the AUTO mode, the highest heating  
setpoint temperature you select must be at  
least 1°F lower than the lowest cooling  
setpoint temperature you select (for ex-  
ample, if 70°F is your lowest selected cool-  
ing temperature, you cannot select a heat-  
ing temperature any higher than 68°F). If  
such a conflict exists, set the lowest cooling  
temperature higher in order to set the heat-  
ing temperature higher. To set a lower cool-  
ing temperature, you must select a lower  
heatingtemperature.SeePROGRAMMING  
YOUR THERMOSTAT.  
thermostatimmediately,press HEAT/EMER/OFF/ until  
COOL/AUTO  
OFF is displayed and replace the thermo-  
RUN  
stat on the wall. Then press  
the factory preset program.  
to begin  
PRGM  
To prevent further static discharge prob-  
lems, touch another object to release static  
build-up before touching the thermostat.  
See OPERATING YOUR THERMOSTAT.  
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?  
10. Why won’t the system turn on, even  
though the thermostat display is func-  
tioning normally?  
The display light and audio prompting  
(beep) only work when the thermostat is  
on the wall and 24 VAC power is present  
to the thermostat. See OPERATING  
YOUR THERMOSTAT.  
Either the compressor lockout feature is in  
operation or the thermostat is not currently  
callingforheatorcool.Waitabout5minutes  
for the compressor lockout to expire. If the  
system is still not running, read the caution-  
ary statement at the right. Then, if condi-  
9. The display is flashing BATTERY. What  
does this mean?  
The 9 volt battery installed in the thermostat  
is low and should be replaced with a fresh 9  
voltEnergizer® alkalinebattery. SeeOPER-  
ATING YOUR THERMOSTAT.  
tions permit, use the  
or  
buttons  
tomovethetemperatureaboveorbelowthe  
setpoint temperature. See OPERATING  
YOUR THERMOSTAT.  
36  
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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.  
CAUTION  
If the outside temperature is below 50°F,  
DO NOT use the button to move the  
temperaturebelowthesetpointtempera-  
ture. Property damage may result due to  
compressor slugging.  
!
The thermostat is in the HOLD mode.  
RUN  
Press  
to start program operation.  
PRGM  
11. Why doesn’t the temperature change at  
the time I programmed?  
See OPERATING YOUR THERMO-  
STAT.  
There are a number of causes for this situ-  
ation. The following are primary reasons.  
The compressor lockout feature is oper-  
ating; wait about 5 minutes for system to  
begin running. See OPERATING YOUR  
THERMOSTAT.  
The EMR function is operating. The  
EMR function will automatically turn on  
the system early enough to bring the  
temperature to the selected level by  
the beginning of the next program pe-  
riod. See OPERATING YOUR  
THERMOSTAT.  
37  
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12. Why does the blower fan keep running 14. Between heating and cooling seasons, I  
after the system has turned off?  
want to turn my system off. Can I do this  
withoutaffectingmythermostatprogram-  
ming?  
The blower delay feature is operating. This  
energy saving feature continues to blow  
conditioned air through the ducts after the  
systemhasturnedoff, ratherthanlettingthe  
air dissipate.  
Any time you wish to turn your system off,  
SYSTEM  
press HEAT/EMER/OFF/ until the display shows OFF.  
COOL/AUTO  
This will not affect your thermostat’s pro-  
gramming in any way. To turn the system  
SYSTEM  
13. Why is the system turning on and off so  
frequently (seldom)?  
back on, press HEAT/EMER/OFF/ until HEAT, COOL,  
COOL/AUTO  
The anticipation setting is too low (high). To  
change anticipation settings, see OPER-  
ATING YOUR THERMOSTAT.  
etc. is displayed. The system will automati-  
cally begin operating according to the cur-  
rent thermostat program, unless the ther-  
mostat is in the HOLD mode. See OPER-  
ATING YOUR THERMOSTAT.  
38  
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15. I live in an area where daylight savings  
time is observed. How do I change the  
thermostat clock twice a year without  
affecting thermostat programming?  
dead. If you are changing the battery after  
seeing a flashing BATTERY on the display,  
the installed battery may be dead. If you  
remove the old battery and install a fresh  
one within one minute, you may not lose  
your thermostat programming. After install-  
ing a new battery, follow the procedures in  
CHECK YOUR PROGRAMMING to deter-  
mine whether your programming was main-  
tained.Ifthethermostatmaintainsprogram-  
SYSTEM  
To change your clock, follow the instruc-  
tions for setting current time and day. See  
ENTERING YOUR PROGRAM. Thermo-  
stat programming is not affected when you  
change the clock.  
16. Do I have to reprogram my thermostat  
after I change the battery?  
ming, press HEAT/EMER/OFF/ until OFF is displayed,  
COOL/AUTO  
put the thermostat back on the wall, press  
When the thermostat is on the wall and the  
system has power, the thermostat is being  
powered by a 24 VAC source. If power is  
lost, or if the thermostat is removed from the  
wall, the program will be retained for ap-  
proximately one minute if there is no bat-  
tery installed or if the installed battery is  
SYSTEM  
HEAT/EMER/OFF/  
COOL/AUTO  
to select the operating mode you  
RUN  
want, then press  
to start program  
PRGM  
operation. If programming is lost, you must  
reprogramthethermostat.SeePROGRAM-  
MING YOUR THERMOSTAT.  
39  
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Ifyouneedfurtherinformationonprogrammingoroperation, youmaywrite  
to our Technical Service Department at the address shown below.  
WHITE-RODGERS DIVISION  
EMERSON ELECTRIC CO.  
9797 REAVIS ROAD  
Part No. 37-5525A  
9529  
ST. LOUIS, MISSOURI 63123-5398  
R

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