White Rodgers 1F92 71 Thermostat User Manual

Home

href="
OPERATION GUIDE  
1F92-71  
Multi-stage/Heat Pump Electronic  
Digital Thermostat  
WHITE-RODGERS  
Operator: Save this booklet for future use!  
href="
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.  
2
href="
In This Guide . . .  
YOUR NEW THERMOSTAT’S  
PROGRAMMING YOUR  
FEATURES ........................................... 4  
OPERATING YOUR THERMOSTAT ........ 5  
PARTS OF THE THERMOSTAT  
The Back Of the Thermostat Body  
The Display  
THERMOSTAT ................................... 18  
PLANNING FOR YOUR NEEDS  
ENTERING YOUR PROGRAM  
Set Current Time and Day  
Enter Heating Program  
The Thermostat Buttons  
Enter Cooling Program  
OPERATING FEATURES  
CHECK YOUR PROGRAMMING  
QUESTIONS AND ANSWERS ............... 29  
Operator: Save this  
booklet for future use!  
3
href="
YOUR NEW THERMOSTAT’S FEATURES  
• Computed Energy Management Recov-  
• Backlit LCD displays continuous setpoint,  
ery (EMR)  
time, and room temperature  
• Automatic changeover (operator select-  
able)  
• Five-day/two-day programming capability  
• Up to 3 stages of heat and up to 2 stages  
of cool  
• Two hour temperature override  
• Manualprogramoverride(HOLDtempera-  
ture)  
• Adjustable cycle times  
• 9 volt Energizer® alkaline battery backup  
• Compressor long term cycle protection  
• Compressor short cycle protection  
• Blower delay in the cooling cycle  
• Preprogrammed temperature control  
• Audio and visual prompting during opera-  
tion  
• “Advance Program” button  
• Simultaneous heat and cool program stor-  
age  
• Four separate time and temperature set-  
tings per 24-hour period  
• Programmable blower control  
• Temperature range 40° to 99°F  
°F/°C convertibility  
• Compatible with optional Remote Sensor  
• Electric Heat (installer-selectable)  
• Armchair programming capability  
4
href="
OPERATING YOUR THERMOSTAT  
Before you begin programming your new ther- The subbase is attached to the wall, but you  
mostat, you should be familiar with its features can remove the thermostat body for easy pro-  
and with the display and the location and gramming. To remove the thermostat body  
operation of the thermostat buttons. The infor- from the subbase, grasp the thermostat body  
mation in this section will help you become and gently pull it out from the bottom of the  
familiar with your thermostat so that you can subbase, then pivot up. To attach the thermo-  
easily program it.  
stat body, line up the four terminal pins on the  
upper section of the thermostat back with the  
matching connector on the subbase. Insert  
these, then gently pivot the thermostat body  
downtoconnecttheninepinconnectorsonthe  
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.  
5
href="
4-pin connector  
PARTS OF THE THERMOSTAT  
Battery  
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.  
CAUTION  
!
SYSTEM  
SWITCH  
Use  
to turn thermostat OFF  
before removing thermostat from the  
wall to replace the battery.  
Option switches  
9-pin connector  
BACK OF THERMOSTAT BODY  
6
1. The 9 volt Energizer® alkaline battery pro-  
vides power to the thermostat when the  
24 VAC power is interrupted (for example,  
when you remove the thermostat from the  
wall for programming). A fresh battery will  
maintain the stored program for approxi-  
mately one week. If power loss is long  
enough for the program to be lost, the  
thermostat will automatically maintain a  
factory preprogrammed heating tempera-  
ture of 64°F and a cooling temperature of  
82°F after power is restored. You must  
reprogram the thermostat if this happens.  
If the word BAT is flashing in the display  
window, the battery is low and should be  
replaced with a fresh 9 volt Energizer®  
alkaline battery. The battery will provide  
power for all functions except the display  
lightandaudioprompting, whichworkonly  
on 24 VAC power.  
2. You may adjust option switch #4 for auto-  
matic changeover from heating to cooling  
(see OPERATING FEATURES).  
7
href="
Other than  
and  
, the buttons are  
Displays the setpoint temperature.  
3
4
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.  
5 DAY indicates that the displayed pro-  
gram is the weekday program. 2 DAY  
indicates that the displayed program is the  
weekend program.  
Following are brief descriptions of the display  
and the thermostat buttons.  
ThewordBATflashesonthedisplaywhen  
5
6
the 9 volt alkaline battery is weak and  
should be replaced.  
The Display  
FAN  
operatingcontinuously,regardlessofheat-  
ing or cooling system cycling. FAN is  
is displayed when the blower is  
Continuously displays system mode  
1
2
(HEAT, EMER, OFF, COOL, AUTO,  
HOLD).Duringprogramming,theprogram  
period is displayed (MOR, DAY, EVE,  
NHT).  
displayed during automatic fan operation  
(when the blower cycles with the heating  
or cooling system).  
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).  
8
href="
EMER. PUMP  
MALF. AUX.  
5
DAY  
FAN  
W H I T E - R O D G E R S  
DIGITAL MULTI-STAGE COMFORT-SET II  
TIME  
FWD  
SET  
CLOCK  
VIEW  
PRGM  
HOLD  
TEMP  
SYSTEM  
SWITCH  
HEAT/OFF/COOL/AUTO  
FAN  
SWITCH  
TIME  
BACK  
SET  
DAY  
RUN  
PRGM  
ADV  
PRGM  
ON  
/AUTO  
1
2
3
3
2
DAY  
FAN  
5
DAY  
BAT  
FAN  
6
4
4
5
2
6
9
href="
The Thermostat Buttons and Lights  
Used to initiate or review thermostat pro-  
gramming.  
12  
13  
Sets the system mode (HEATing,  
7
EMERgency backup system, OFF,  
COOLing,orAUTOmaticchangeover[user  
selectable feature]).  
Used to start program operation after pro-  
gramming. Also used to return thermostat  
to program operation after being in HOLD  
mode.  
Selects fan operation (see #6, above). This  
8
9
button is also used to program the fan to run  
continuously during a program period.  
Used to manually override programming  
14  
15  
to hold at a selected temperature (when  
HOLD is displayed).  
Runsdisplayforwardorbackwardthrough  
time, day, or anticipation settings during  
programming.  
Used to advance thermostat program to  
the next program period (for example,  
from the MOR program to the DAY pro-  
gram).  
TIME  
FWD  
TIME  
Used with  
and  
to set current time  
10  
11  
BACK  
and day of the week.  
(Blue arrow) Lowers temperature setting  
(40°F or 4°C minimum).  
16  
17  
Usedduringprogrammingtosetthedayof  
SET  
the week. Also used with  
anticipation setting mode.  
to enter  
CLOCK  
(Red arrow) Raises temperature setting  
(99°F or 37°C maximum)  
10  
href="
heat pump manufacturer’s operating  
manual). A continuous (non-flashing)  
PUMP light indicates that the heat pump  
compressor is functioning — a flashing  
PUMP light indicates that the compressor  
is locked out. AUX light indicates that the  
auxiliary system is operating.  
EMER light indicates that the system is in  
18  
theemergencymode(theheatpumpcom-  
pressor is off and the auxiliary system is  
maintaining setpoint temperature — there  
is a 5 to 10 minute startup delay on the first  
emergency cycle). MALF light indicates a  
heat pump system malfunction (refer to  
16 17  
18  
EMER. PUMP  
MALF. AUX.  
5
DAY  
FAN  
DIGITAL MULTI-STAGE COMFORT-SET  
W H I T E - R O D G E R S  
II  
TIME  
FWD  
SET  
CLOCK  
VIEW  
PRGM  
HOLD  
TEMP  
SYSTEM  
SWITCH  
7
8
HEAT/OFF/COOL/AUTO  
FAN  
SWITCH  
TIME  
BACK  
SET  
DAY  
RUN  
PRGM  
ADV  
PRGM  
ON  
/AUTO  
9
10  
12 13 14 15  
11  
11  
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 infor-  
mation to learn about the many features of the  
thermostat.  
COMPUTED ENERGY MANAGEMENT  
RECOVERY (EMR) - The thermostat’s  
microcomputer automatically calculates  
the time it will take to change the tempera-  
ture to the next program setting. Then the  
thermostatwillactivatetheheatingorcool-  
ing system to change the temperature so  
that the desired temperature is reached at  
the beginning of the next program period.  
Asanexampleofthisfeature, assumethat  
you have programmed your thermostat to  
provide an overnight heating temperature  
of 62°F, and that during the next program  
AUTOMATICCHANGEOVERYoucan  
set the thermostat to automatically switch  
the system from heating to cooling as  
needed.First,youmustmoveoptionswitch  
#4 (located on the back of the thermostat  
body) to the ON position, if it has not  
already been done. To do this, turn off  
24 VAC power to the thermostat. Then,  
remove the thermostat 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 and  
restore 24 VAC power. If the switch is OFF  
12  
href="
(down), use a pencil or 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. DO  
NOT MOVE ANY OTHER OPTION  
SWITCH, as it may affect thermostat op-  
eration. Replace the battery, reprogram  
the thermostat if necessary, put the ther-  
mostat back on the wall, and restore  
24 VAC power. To set the thermostat for  
automaticchangeoverafterprogramming,  
Automatic Changeover (ON)  
ON  
1
2
3
4
Switch #1 set at installation (DO NOT CHANGE)  
Switch #2 set at installation (DO NOT CHANGE)  
Switch #3 set at installation (DO NOT CHANGE)  
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 that 1°F. For example, if the  
SYSTEM  
press  
to set the thermostat to highest heat setting is 76°F, the lowest cool  
setting cannot be below 77°F (see diagram  
SWITCH  
AUTO (the setpoint display is blank in the  
AUTO mode). The system will now auto-  
maticallyswitchbetweenheatingandcool-  
ing depending on the actual room tem-  
perature.  
below).  
79  
78  
77  
76  
75  
74  
COOLING TEMPERATURES  
DEAD BAND 1°F  
HEATING TEMPERATURES  
13  
href="
TWO HOUR TEMPERATURE OVER-  
RIDE — Press or until the  
RUN  
you press  
to start program operation  
PRGM  
again. This feature is ideal for energy  
conservation when the building is unoccu-  
pied for an extended period of time.  
display shows the temperature you want.  
The thermostat will override current pro-  
grammingandkeeptheroomtemperature  
at the selected temperature for two hours.  
After two hours, the thermostat will auto-  
matically revert to the program.  
TIME  
°F/°C CONVERTIBILITY — Press  
FWD  
TIME  
and  
at the same time until the tem-  
BACK  
HOLD TEMPERATURE — The thermo-  
stat can hold any temperature within its  
range for an indefinite period, without re-  
perature display is in °C (Celsius). To  
display °F, repeat the process.  
ADJUSTABLE HEATING AND COOL-  
ING 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  
verting to the program. Press  
. HOLD  
TEMP  
willbedisplayed. Thenchoosethedesired  
hold temperature by pressing or  
. The thermostat will hold the room  
temperature at the selected setting until  
14  
href="
TIME  
CAUTION  
!
heat cycles are too long, press  
to  
BACK  
A cooling anticipation setting of less  
than 10 may cause decreased com-  
pressor life.  
decrease the cycle time. To set COOL  
SET  
SET  
DAY  
anticipation, press  
and  
at the  
CLOCK  
same time again. The display will show  
COOL 14 (factory preprogrammed cool-  
SET  
CLOCK  
To adjust HEAT anticipation, press  
TIME  
FWD  
TIME  
SET  
ing anticipation). Use  
and  
to  
BACK  
and  
at the same time. The display will  
DAY  
adjust anticipation. To set AUXILIARY  
heat anticipation (not applicable to multi-  
showHEAT18. Youmayselectanyantici-  
pation setting from 4 to 40 (note that for  
add-onheatpumpsystems,aminimum  
anticipation of 10 is recommended).  
Wheneveradjustinganticipation,increase  
or decrease the displayed number by only  
one or two digits, then let the system run  
for a while to see if the adjustment is  
sufficient. If the heat cycles are too short,  
SET  
SET  
DAY  
stage use), press  
and  
at the  
CLOCK  
same time again. The display will show  
AUX 8 (factory preprogrammed auxiliary  
TIME  
FWD  
TIME  
anticipation). Use  
and  
to adjust  
BACK  
RUN  
PRGM  
anticipation. Press  
program.  
to return to your  
15  
TIME  
press  
to increase the cycle time. If the  
FWD  
href="
LOWBATTERYINDICATORTheword  
BAT will flash on the display if the 9 volt  
alkaline battery is low and should be re-  
placed.  
following may cause a time delay inCOOL  
or HEAT:  
a) Return of power after a momentary  
power outage.  
AUDIO PROMPTING — Each time you  
press a button, the thermostat will beep.  
SYSTEM  
SWITCH  
b) Pressing  
modes.  
to change operating  
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).  
c) Pressing  
or to create a call  
for COOL or HEAT too soon after a  
previous call.  
During lockout in the HEAT mode, the  
green compressor (PUMP) LED will flash.  
During lockout in the COOL mode, the  
blower will operate, but compressor op-  
eration will be delayed.  
COMPRESSOR SHORT CYCLE PRO-  
TECTION — To protect your compressor  
from potential damage due to rapid cy-  
cling, thisthermostathasabuilt-indelayof  
5 minutes between cooling cycles. The  
blowerwilloperateduringatimedelay, but  
the air circulated will not be cooled. The  
Auxiliaryheatisfunctionalduringthecom-  
pressorlockoutandcanbeusedasneeded  
to maintain room temperature.  
16  
href="
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  
onehourlessthanthepowerloss(upto12  
hours). When power is restored to the  
system, heaters in the system will begin to  
heat the crankcase oils. The thermostat’s  
time delay will lock out the compressor to  
prevent its operation until the compressor  
oil is sufficiently warmed. During the lock-  
out time period, the auxiliary heating sys-  
tem will operate to maintain setpoint tem-  
perature.  
SYSTEM INDICATOR LIGHTS — The  
four lights on the upper right part of the  
thermostatindicatesystemoperation(see  
PARTS OF THE THERMOSTAT for spe-  
cific descriptions of what each light indi-  
cates).  
PROGRAMMABLE BLOWER CON-  
TROL — You may program the fan blower  
to run continuously during any given pro-  
gram period, regardless of the cycling of  
the heating or cooling system. During pro-  
gramming,afterenteringthetimeandtem-  
FAN  
SWITCH  
peratureforthetimeperiod,press  
until FAN is displayed. To override con-  
stant fan, press until FAN is displayed.  
For example, if a power outage of three  
hoursoccurs,thecompressorwillbelocked  
out for two hours.  
17  
href="
PROGRAMMING YOUR THERMOSTAT  
Now you are ready to program your thermo-  
stat. This section will help you plan and pro-  
gram your thermostat to meet your needs.  
PLANNING FOR YOUR NEEDS  
This thermostat will store separate heating  
and cooling programs for five-day (weekday)  
and two-day (weekend) operation. Usually,  
the five-day program is set to run Monday  
throughFriday, andthetwo-dayprogramisset  
to run Saturday and Sunday. However, you  
may choose any five consecutive days to be  
your weekday program days (such as Sunday  
through Thursday; in this case, your weekend  
program would run on Friday and Saturday).  
For maximum comfort and efficiency, keep the  
following guidelines in mind when planning  
your program.  
• When heating (cooling) your building, pro-  
gram the temperatures 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.  
First, you should answer the following ques-  
tions to help you decide what your needs are.  
If you are using the thermostat for a commer-  
cial application (a store, office building, etc.),  
18  
answer questions 1 through 4. If you are using 3a. Whattimedothebuildingoccupantsreach  
the thermostat in your home, answer ques-  
tions 5 through 8. Keep in mind that you should  
planforbothweekdayandweekendprograms.  
aminimumactivitylevel(limitedpersonnel  
in building)? These will be your EVE  
(evening) temperature settings.  
b. What temperature should the building be  
at this time?  
FOR COMMERCIAL APPLICATIONS:  
1a. What time does the first person arrive at  
the building in the morning?  
4a. What time does the building become  
vacant?  
b. What temperature should the building be  
at this time? (heating? cooling?) These  
will be your MOR (morning) temperature  
settings.  
b. What temperature should the building be  
atthistime?ThesewillbeyourNHT(night)  
temperature settings.  
IN YOUR HOME:  
2a. Whattimedothebuildingoccupantsreach  
a maximum activity level (using lights,  
equipment, meeting rooms, etc.)?  
5a. What time does the first person get up in  
the morning?  
b. What temperature should the building be  
at this time? These will be your DAY tem-  
perature settings.  
b. What temperature should the house be at  
this time? These will be your MOR (morn-  
ing) temperature settings.  
19  
href="
6a. What time does the last person leave the  
house in the morning?  
b. What temperature should the house be at  
this time? These will be your NHT (night)  
temperature settings.  
b. What temperature should the house be at  
this time? These will be your DAY tem- Now look at the factory preprogrammed times  
perature settings.  
and temperatures shown below. If this pro-  
RUN  
7a. What time does the first person arrive  
home in the evening?  
gram will suit your needs, simply press  
to  
PRGM  
begin running the factory preset program.  
b. What temperature should the house be at  
thistime?ThesewillbeyourEVE(evening)  
temperature settings.  
If you want to change the preprogrammed  
times and temperatures, do the following.  
8a. What time does the last person go to bed  
at night?  
FACTORY PREPROGRAMMING  
Cooling Program for ALL Days of the Week:  
Heating Program for ALL days of the Week:  
TEMP  
78  
82  
78  
78  
PERIOD  
MOR  
DAY  
EVE  
NHT  
TIME  
TEMP  
70  
70  
70  
64  
PERIOD  
MOR  
DAY  
EVE  
NHT  
TIME  
5:00 AM  
9:00 AM  
4:00 PM  
10:00 PM  
5:00 AM  
9:00 AM  
4:00 PM  
10:00 PM  
20  
href="
for both weekday and weekend programs (for  
example, you may select 5:00 AM and 70° as  
NOTE  
To operate properly in the AUTO mode, there the weekday MOR heating start time and  
must be a minimum 1°F separation between temperature, and choose 7:00 AM and 76° as  
the highest heat temperature and the lowest the weekday MOR cooling start time and  
cool temperature (see diagram below).  
temperature). Use the following table to plan  
your program time periods, and the tempera-  
tures 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.  
79  
78  
COOLING TEMPERATURES  
77  
76  
DEAD BAND 1°F  
75  
HEATING TEMPERATURES  
74  
Determine the time periods and heating and  
cooling temperatures for your weekday pro-  
gram. You must program 4 periods for each  
day (MOR, DAY, EVE, and NHT). However,  
you may use the same heating and cooling  
temperatures for consecutive time periods.  
You can choose start times, heating tempera-  
tures,andcoolingtemperaturesindependently  
21  
href="
Heating/Cooling Schedule Plan  
WEEKEND (2 DAY)  
WEEKDAY (5 DAY)  
Start  
Time  
Start  
Time  
Temperature  
Temperature  
MOR HEAT  
DAY HEAT  
EVE HEAT  
NHT HEAT  
MOR COOL  
DAY COOL  
EVE COOL  
NHT COOL  
22  
href="
SAMPLE  
Heating/Cooling Schedule Plan  
WEEKEND (2 DAY)  
WEEKDAY (5 DAY)  
Start  
Time  
Start  
Time  
Temperature  
Temperature  
MOR HEAT  
DAY HEAT  
EVE HEAT  
NHT HEAT  
MOR COOL  
DAY COOL  
EVE COOL  
NHT COOL  
5:30 AM  
68°  
7:30 AM  
2:00 PM  
6:00 PM  
12:00 AM  
8:00 AM  
2:00 PM  
6:00 PM  
12:00 AM  
68°  
8:00 AM  
4:30 PM  
11:00 PM  
8:00 AM  
12:00 PM  
4:30 PM  
11:00 PM  
66°  
70°  
66°  
76°  
78°  
74°  
78°  
70°  
70°  
66°  
76°  
74°  
74°  
78°  
23  
href="
Set Current Time and Day  
ENTERING YOUR PROGRAM  
SET  
Follow these steps to enter the heating and  
cooling programs you have selected.  
1. Press  
once. The display will show  
CLOCK  
minutes only.  
NOTE  
EXAMPLE:  
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 THER-  
MOSTAT TO SUBBASE!  
TIME  
FWD  
TIME  
2. Press and hold either  
or  
until you  
BACK  
reach the correct minutes.  
SET  
3. Press  
once. The display window will  
CLOCK  
show the hour only.  
EXAMPLE:  
TIME  
FWD  
TIME  
You cannot program the thermostat with the  
SYSTEM SWITCH in the AUTO position.  
4. Press and hold either  
or  
until you  
BACK  
reach the correct hour and AM/PM desig-  
nation (AM begins at midnight; PM begins  
at noon).  
24  
href="
SET  
DAY  
VIEW  
5. Press  
once. The display will show the  
until you are at the point where you  
PRGM  
dayoftheweekasanabbreviation(MOfor  
Monday, TU for Tuesday, etc.).  
stopped programming. Then you may con-  
tinue to enter your programs normally. If you  
want to stop programming at any time, simply  
TIME  
FWD  
TIME  
6. Press and hold either  
or  
until you  
BACK  
RUN  
press  
to resume program operation.  
PRGM  
reach the current day of the week.  
SYSTEM  
SWITCH  
RUN  
7. Press  
once. The display will show the 1. Press  
until HEAT is displayed.  
PRGM  
correct time and room temperature alter-  
nately.  
VIEW  
2. Press  
once. 5 DAY (indicating week-  
PRGM  
day program), and MOR, representing  
the morning heating period, will appear  
in the display. Also displayed are the  
currently programmed start time for the  
MOR period and the currently pro-  
grammed temperature.  
Enter Heating Program  
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  
alternating time/temperature display. To re-  
sume programming after this happens, press  
EXAMPLE:  
5 DAY  
25  
href="
This display window shows that for the  
weekday MOR period, the start time is  
5:00 AM, and 70° is the programmed tem-  
perature(thisexamplereflectsfactorypre-  
programming).  
VIEW  
6. Press  
. The currently programmed  
PRGM  
start time and heating temperature for  
weekday DAY will be displayed.  
7. Repeatsteps3through5toselectthestart  
timeandheatingtemperaturefortheweek-  
day DAY program.  
3. To change the displayed start time to your  
selected start time for weekday MOR heat  
8. Repeat steps 3 through 7 for the weekday  
TIME  
FWD  
TIME  
program, press  
or  
until your  
BACK  
EVE and NHT heating programs.  
selected time is displayed. The time will  
change in 15 minute increments.  
9. After entering your weekday heating pro-  
gram, repeat steps 1 through 8 for your  
weekend programming (keep in mind that  
for weekend programming, the display  
should be changed from 5 DAY to 2 DAY).  
4. Press  
or  
until you reach your  
selectedweekdayMORheatingtempera-  
ture.  
10. When you have completed entering your  
5. If you want the fan to run continuously  
RUN  
FAN  
SWITCH  
heating program, press  
.
during this period, press  
until  
PRGM  
FAN is displayed.  
26  
href="
Enter Cooling Program  
SYSTEM  
SWITCH  
1. Press  
until COOL is displayed.  
CAUTION  
!
2. Follow the same procedure used to enter  
your heating program, using your chosen  
cooling times and temperatures.  
If outside temperature is below 50°F,  
we recommend that you remove the  
thermostat from the wall before pro-  
ceedingwiththefollowingstepstopro-  
gram cooling temperatures. Personal  
injury or property damage may occur  
due to compressor operation in cold  
weather. A fresh 9 volt Energizer® alka-  
line battery must be installed to per-  
form off-wall programming. Program-  
ming away from the wall should pre-  
vent accidental compressor operation.  
CHECK YOUR PROGRAMMING  
Follow these steps to check your thermostat  
programming one final time before beginning  
thermostat operation.  
SYSTEM  
SWITCH  
1. Press  
until HEAT is displayed.  
VIEW  
2. Press and hold  
to view the heating  
PRGM  
SYSTEM  
SWITCH  
periodtimesandtemperaturesinsequence  
for weekday, then weekend MOR, DAY,  
EVE, and NHT program periods.  
USE  
TO TURN THERMOSTAT  
OFF BEFORE REATTACHING THE  
THERMOSTAT TO THE SUBBASE!  
27  
href="
RUN  
SYSTEM  
SWITCH  
3. Press  
4. Press  
.
Press  
until OFF is displayed. Reat-  
PRGM  
tach thermostat to subbase. Then press  
SYSTEM  
SWITCH  
until COOL is displayed.  
SYSTEM  
SWITCH  
to select the operation mode you  
5. Repeat step 2 to check cooling tempera-  
tures.  
FAN  
SWITCH  
want (HEAT, COOL, AUTO). Press  
RUN  
until FAN is displayed (automatic cycling).  
6. Press  
to begin program operation.  
PRGM  
YOUR THERMOSTAT IS NOW COM-  
PLETELY PROGRAMMED AND READY TO  
AUTOMATICALLY PROVIDE MAXIMUM  
COMFORT AND EFFICIENCY!  
28  
href="
QUESTIONS AND ANSWERS  
1. How can I permanently change a part of  
will not change when the EVE period be-  
gins. 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  
FWD  
TIME  
or  
and  
and  
tochange  
BACK  
During programming, if no buttons are  
pressed for five minutes, the thermostat  
will enter the HOLD mode and maintain a  
constant temperature. The display will  
change to the time/temperature mode. To  
theprogram.SeePROGRAMMINGYOUR  
THERMOSTAT.  
2. How can I have no change in tempera-  
ture from one time period to another?  
VIEW  
Simply select the same temperature for  
eachconsecutivetimeperiod.Forexample,  
you may select the same weekday EVE  
cooling temperature as you did for week-  
day DAY, which means the temperature  
resume programming, press  
until you  
PRGM  
return to the point where you stopped  
programming. Then you may continue to  
program the thermostat normally. If you  
29  
href="
want to stop programming at this point,  
for about one week with no 24 VAC power  
present to the thermostat. See OPERAT-  
ING YOUR THERMOSTAT.  
RUN  
press  
to start the normal program  
PRGM  
function. See PROGRAMMING YOUR  
THERMOSTAT.  
5. Why can’t I program the thermostat in  
the AUTO mode?  
4. What happens if the electricity goes off  
or is manually shut off?  
The thermostat can only be programmed  
intheHEATand COOLmodes. SeePRO-  
GRAMMING YOUR THERMOSTAT.  
If you have not installed a 9 volt alkaline  
battery, the display will go blank and the  
program will be lost in approximately one  
minute. When electricity is restored, the  
thermostat will maintain a heating tem-  
perature of 64°F and a cooling tempera-  
ture of 82°F until you reenter your pro-  
gram. Setpoint temperature will not be  
displayed.  
6. What can cause the thermostat display  
to freeze or go blank?  
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  
discharge is probably the cause.  
If a fresh 9 volt Energizer® alkaline battery  
isinstalled, theprogramwillbemaintained  
30  
href="
During periods of low humidity (especially  
during cold weather), you may feel or see  
a spark discharge when you touch the  
thermostat. This may cause the program  
to be lost or the thermostat to display  
incorrectly. To correct this, remove the  
thermostat from the wall and disconnect  
the battery. Wait about one minute, then  
reconnect the battery. The thermostat will  
revert to the factory preset program until  
you reprogram the thermostat. If you don’t  
want to reprogram the thermostat immedi-  
To prevent further static discharge prob-  
lems,touchanotherobjecttoreleasestatic  
build-up before touching the thermostat.  
SeeOPERATINGYOURTHERMOSTAT.  
7. Why won’t the setpoint temperature go  
to the temperature I want?  
In the AUTO mode, the highest heating  
setpointtemperatureyouselectmustbeat  
least 1°F lower than the lowest cooling  
setpoint temperature you select (for ex-  
ample, if 70°F is your lowest selected  
cooling temperature, you cannot select a  
heatingtemperatureanyhigherthan69°F).  
If such a conflict exists, you must set the  
lowestcoolingtemperaturehigherinorder  
to set the heating temperature higher. To  
set a lower cooling temperature, you must  
select a lower heating temperature. See  
PROGRAMMINGYOURTHERMOSTAT.  
SYSTEM  
SWITCH  
ately,press  
untilOFFisdisplayed  
and replace the thermostat on the wall.  
RUN  
Thenpress  
tobeginthefactorypreset  
PRGM  
program. Or you may reprogram the ther-  
mostat, then replace it on the wall.  
31  
href="
8. Why doesn’t the display light come on 10. Why won’t the system turn on, even  
when I press a button? Why don’t I hear  
a beep when I press a button?  
though the thermostat display is func-  
tioning normally?  
The display light and audio prompting  
(beep) only work when the thermostat is  
onthewalland24VACpowerispresentto  
the thermostat. These features will not  
work on battery power alone. See OPER-  
ATING YOUR THERMOSTAT.  
Either the compressor lockout feature is in  
operationorthethermostatisnotcurrently  
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 on the next page.  
Then, if conditions permit, use the  
9. The display is flashing BAT. What does  
this mean?  
or  
buttons to move the temperature  
above or below the setpoint temperature.  
SeeOPERATINGYOURTHERMOSTAT.  
The 9 volt battery installed in the thermo-  
stat is low and should be replaced with a  
fresh 9 volt Energizer® alkaline battery.  
SeeOPERATINGYOURTHERMOSTAT.  
32  
href="
You have programmed the incorrect  
day or time. Check your programming  
(besurethatthetimesyouprogrammed  
arecorrectAMorPMtimes). SeePRO-  
GRAMMING YOUR THERMOSTAT.  
CAUTION  
!
Iftheoutsidetemperatureisbelow50°F,  
DO NOT use the button to move  
thetemperaturebelowthesetpointtem-  
perature. Property damage may result  
due to compressor operation in cold  
weather.  
The thermostat is in the HOLD mode.  
RUN  
Press  
to start program operation.  
PRGM  
See OPERATING YOUR THERMO-  
STAT.  
11. Whydoesn’tthetemperaturechangeat  
the time I programmed?  
The compressor lockout feature is op-  
erating; wait about 5 minutes for sys-  
tem to begin running. See OPERAT-  
ING YOUR THERMOSTAT.  
There may be a number of causes for this  
situation.Thefollowingareprimaryreasons.  
The EMR function is operating. The  
EMR function will bring the system on  
automatically to bring the temperature  
to the selected level by the beginning of  
the next program period. See OPER-  
ATING YOUR THERMOSTAT.  
33  
href="
12. Why does the blower fan keep running 14. Between heating and cooling seasons,  
after the system has turned off?  
I want to turn my system off. Can I do  
this without affecting my thermostat  
programming?  
You have programmed the fan to run  
continuously during this period. See  
PROGRAMMING YOUR THERMO-  
STAT.  
Any time you wish to turn your system off,  
SYSTEM  
SWITCH  
simply press  
until the display  
The blower delay feature is operating.  
This energy saving feature continues  
toblowconditionedairthroughtheducts  
after the system has turned off, rather  
than letting the air dissipate.  
shows OFF. This will not affect your  
thermostat’s programming in any way. To  
SYSTEM  
SWITCH  
turn the system back on, press  
until HEAT, COOL, etc. is displayed. The  
system will automatically begin operating  
according to the current thermostat pro-  
gram,unlessthethermostatisintheHOLD  
mode. See OPERATING YOUR THER-  
MOSTAT.  
13. Why is the system turning on and off so  
frequently (seldom)?  
The anticipation setting is too low (high).  
To change anticipation settings, see OP-  
ERATING YOUR THERMOSTAT.  
34  
href="
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?  
seeing a flashing BAT on the display, the  
installed battery may be dead. If you re-  
movetheoldbatteryandinstallafreshone  
within one minute, you should not lose  
your thermostat programming. After in-  
stalling a new battery, follow the proce-  
duresinCHECKYOURPROGRAMMING  
to determine whether your programming  
was maintained. If the thermostat main-  
To change your clock, follow the instruc-  
tions for setting current time and day. See  
ENTERING YOUR PROGRAM. Thermo-  
statprogrammingisnotaffectedwhenyou  
change the clock.  
SYSTEM  
SWITCH  
16. Do I have to reprogram my thermostat  
after I change the battery?  
tains programming, press  
until  
OFF is displayed, put the thermostat back  
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  
approximately one minute if there is no  
batteryinstalledoriftheinstalledbatteryis  
dead. If you are changing the battery after  
SYSTEM  
SWITCH  
on the wall, press  
to select the  
RUN  
operating mode you want, then press  
PRGM  
to start program operation. If the program  
is lost, reprogram the thermostat. See  
PROGRAMMINGYOURTHERMOSTAT.  
35  
href="
If you need further information on programming or operation, you may write  
to our Technical Service Department at the address shown below.  
WHITE-RODGERS DIVISION  
EMERSON ELECTRIC CO.  
9797 REAVIS ROAD  
Part No. 37-4741C  
Replaces 37-4741B  
9606  
ST. LOUIS, MISSOURI 63123-5398  

Honeywell T8011F Thermostat User Manual

Bryant T874 Thermostat User Manual

Aube TH113 AF Thermostat User Manual

White Rodgers 1F90 51 Thermostat User Manual

White Rodgers 1F89EZ 0251 Thermostat User Manual

Honeywell T8603A C Thermostat User Manual

Aprilaire 8555 Thermostat User Manual

White Rodgers 1F72 151 Thermostat User Manual

White Rodgers 1F92W 51 Thermostat User Manual

White Rodgers 1F89 0211 Thermostat User Manual