White Rodgers 1F82-51 User manual

Topreventelectricalshockand/orequipmentdamage
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398 Printed in U.S.A.
DESCRIPTION
WHITE-RODGERS
1F82-51
Programmable Electronic Digital
Heat Pump Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
PART NO. 37-5650A
9618
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
YournewWhite-Rodgers5-Day/2-DayDigitalHeatPumpTher-
mostat uses the technology of a solid-state microcomputer to
provideprecisetime/temperaturecontrol.Thisthermostatoffers
youthe flexibilityto designheating andcooling programsthat fit
your needs.
Features:
• Separate5-day(weekday)and2-day(weekend)programming
with four separate time/temperature periods per program
• Simultaneous heat and cool program storage
• Preprogrammed temperature control
PRECAUTIONS
SPECIFICATIONS
• LCD continuously displays set point, and alternately dis-
plays time and room temperature
• Temperature override until next program period
• Manual program override (HOLD temperature)
•°F/°C convertibility
• Temperature range 45°to 90°F
• Eight terminals for single or two-transformer systems
• O/B terminal for heat pump systems
• Armchair Programming Capability
Thisthermostatisintendedforusewitha24-voltsystem;donot
use this thermostat with a millivolt or line voltage system. If in
doubtaboutwhetheryourwiringismillivolt,line,orlowvoltage,
have it inspected by a qualified heating and air conditioning
contractor or electrician.
Do not exceed the specification ratings.
Allwiringmustconformtolocalandnationalelectricalcodesand
ordinances.
This control is a precision instrument, and should be handled
carefully.Roughhandlingordistortingcomponentscouldcause
the control to malfunction.
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.5 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-40°F to 150°F
APPLICATIONS
For use with:
• Heat pump systems with up to two stages heat, one
stage cool
DO NOT USE WITH:
• Millivolt systems
• Systems exceeding 30 VAC and 1.5 amps
• 3-wire zoned hydronic heating systems
CAUTION
!
WARNING
!

2
INSTALLATION
REMOVE OLD THERMOSTAT
1. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
2. Remove the front cover of the old thermostat. With wires
still attached, remove wall plate from the wall. If the old
thermostathasawallmountingplate,removethethermostat
and the wall mounting plate as an assembly.
3. Identifyeachwireattachedtotheoldthermostatusingthe
labels enclosed with the new thermostat.
4. Disconnect the wires from old thermostat one at a time. DO
NOT LET WIRES FALL BACK INTO THE WALL.
5. Install new thermostat using the following procedures.
ATTACH THERMOSTAT BASE TO WALL
1. Remove the packing material from the thermostat.
2. If necessary, cut the non-electric heat jumper (see FAN
OPTION JUMPER) and/or the EMR jumper (see ENERGY
MANAGEMENT RECOVERY). Check the setting of the O/
B switch (see O/B TERMINAL SWITCH SELECTION).
3. If you want to program the thermostat before mounting the
thermostat on the wall, see ARMCHAIR PROGRAMMING.
4. Gentlypullthethermostatcoverstraightoffthebase.Forcing
or prying on the thermostat will cause damage to the unit.
5. Pull wires through hole in base and place base over hole in
wall. Mark mounting hole locations on wall using base as a
template.
6. Move base out of the way. Drill mounting holes.
7. Fasten base loosely to wall, as shown in fig. 2, using two
mounting screws. Place a level against bottom of base,
adjust until level, and then tighten screws. (Leveling is for
appearance only and will not affect thermostat operation.) If
you are using existing mounting holes, or if holes drilled are
too large and do not allow you to tighten base snugly, use
plastic screw anchors to secure subbase.
8. Check that the SYSTEM switch is in the OFF position.
Connect wires beneath terminal screws on base using
appropriate wiring schematic (see figs. 3 through 5).
9. Pushexcess wireinto walland plughole witha fire-resistant
material(suchasfiberglassinsulation)topreventdraftsfrom
affecting thermostat operation.
FAN OPTION JUMPER
Read the following information before clipping the non-electric
heat jumper. If you are unsure of your application, contact a
qualified serviceperson.
If your emergency or auxiliary system will energize the blower,
thenjumper, W904,on thebackofthethermostat basemust be
cut (see fig. 1).
If your emergency or auxiliary heat system requires that the
thermostat energize the fan circuit, do not cut jumper W904.
ENERGY MANAGEMENT RECOVERY
(EMR)
The EMR feature allows, the thermostat's microcomputer to
automatically calculate the time it will take to change the room
temperature to the next program setting. Then the thermostat
will start the heating system before the next programmed
periodsothatthedesiredtemperatureisreachedatornearthe
beginning of the period (the thermostat calculates 15 minutes
for every 1°F temperature change).
For example, assume that the thermostat is programmed to
provide an overnight heating temperature of 66°F, and during
thenextprogramperiod,beginningat6:00AM,theprogrammed
temperature is 70°F. With EMR activated, the thermostat will
automatically start the heating system at 5:00 AM, so that the
programmedtemperatureof70°F isreachedbyabout6:00 AM.
If the overnight room temperature drops only to 68F°, the
thermostatwillstartthesystemat5:30toreachtheprogrammed
temperature of 70°F at 6:00.
The thermostat is shipped with the EMR feature active, which
means that the thermostat will start the heating system before
the beginning of the next program period. This feature provides
betterefficiencybyallowinggradualtemperaturechangesusing
only the first stage of heat.
To deactivate the EMR function, clip wire W903 on the back
of the thermostat (see fig. 1). The thermostat will then wait until
the programmed time to start the system for a temperature
change. This may cause the more costly electric second stage
of heating to be used.
Figure 1. Back of thermostat base
W904
CUT FOR
NON-ELECTRIC
AUX.
O
B
W903
CUT TO DEFEAT EMR
BATTERY CUTOUT FOR
ARMCHAIR PROGRAMMING
Figure 2. Thermostat base
SET TIME RUN PRGM
VIEW PRGM HOLD TEMP AUTO
FAN ON
COOL
OFF HEAT
EMER
Reset Button
Mounting
holes
Screw anchors
LE
Y
W2
O/B
R
G
C

3
NOTE NOTE
The following wiring diagrams show typical terminal identifica-
tion and wiring. For proper installation, refer to the original
manufacturer's instructions.
Relay contacts shown are thermostatically operated.
LR
E
24 VAC 120 VAC
Hot
MALF
FAN ON
EMERGENCY
SYSTEM
MONITOR
SWITCH
FAN
AUTO
Heat
or Cool
FAN
AUTO
Emer
Neutral
THERMOSTAT
SYSTEM
G W2
Figure 3. Typical wiring diagram for single transformer systems
TRANSFORMER
Changeover
Relay*
CYO/B
Compressor
Contactor
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Aux/Emer
Relay
(Stage 2)
Fan
Relay
Thermostat
Control
Circuit
Emergency
Relay
LR
E
24 VAC 120 VAC
Hot
MALF
FAN ON
SYSTEM
MONITOR
SWITCH
FAN
AUTO
Heat
or Cool
FAN
AUTO
Emer
Neutral
THERMOSTAT
SYSTEM
G W2
Figure 4. Typical wiring diagram for two transformer systems with NO safety circuits
TRANSFORMER
Changeover
Relay*
CYO/B
Compressor
Contactor
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Aux/Emer
Relay
(Stage 2)
Fan
Relay
Thermostat
Control
Circuit
Emergency
Relay Limit or
Safety
Switches
TWO COMMONS MUST
BE JUMPERED TOGETHER!
HOT
NEUTRAL
120 VAC 24 VAC
CUT AND
TAPE OFF!
If safety circuits are in
only one of the systems,
remove the transformer
of the system with NO
safety circuits.
NOTE
EMERGENCY
LR
E
MALF
FAN ON
SYSTEM
MONITOR
SWITCH
FAN
AUTO
Heat
or Cool
FAN
AUTO
Emer
G W2
Figure 5. Typical wiring diagram for two transformer systems with safety circuits in BOTH systems
Changeover
Relay*
CYO/B
Compressor
Contactor
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Aux/Emer
Relay
(Stage 2)
Fan
Relay
Thermostat
Control
Circuit
Emergency
Relay
TWO COMMONS MUST
BE JUMPERED TOGETHER!
24 VAC 120 VAC
HOT
NEUTRAL
THERMOSTAT
SYSTEM
HOT
NEUTRAL
120 VAC
Limit or
Safety
Switches
Limit or
Safety
Switches
Limit or
Safety
Switches
24 VAC
Limit or
Safety
Switches
COMMON
COMMON
Auxiliary
Heating
Transformer
Heat Pump Transformer
24 VAC
ACCESSORY
RELAY N.O.
CONTACT
Polarity must be observed. If the HOT side of
the second transformer is jumpered to the
COMMON side of the first transformer a short
will be made. Damage to equipment will occur
when power is restored.
NOTE
The accessory relay scheme
is required when safety
circuits exist in both systems.
NOTE
EMERGENCY

4
Heating System
1. Move SYSTEM switch to HEAT position
2. Press toadjustthermostatsettingto90°andholdforfive
seconds. Both stages of the heating system should begin to
operate. However, if the word HEAT is flashing, the com-
pressor lockout feature is operating (see Lockout Bypass
Option to temporarily override the compressor lockout fea-
ture during testing).
3. Press toadjusttemperaturesettingbelowroomtempera-
ture. The auxiliary heating system will stop immediately and
the first stage will stop within three to four minutes.
Cooling System
Topreventcompressorand/orpropertydamage,ifthe
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
1. Move SYSTEM switch to COOL position.
2. Press to adjust thermostat setting below room tempera-
ture.Theblowershouldcomeonimmediatelyonhighspeed,
followedbycoldaircirculation.However,ifthefanisrunning
but the compressor is not running and the word COOL is
flashing, the compressor lockout feature is operating (see
Lockout Bypass Option to temporarily override the com-
pressor lockout feature during testing).
3. Press to adjust temperature setting above room tem-
perature. The cooling system should stop operating
O/B TERMINAL SWITCH SELECTION
The O/B switch on this thermostat is factory set to the “O”
position. This will accommodate the majority of heat pump
applications, which require the changeover relay to be ener-
gized in COOL. If the thermostat you are replacing or the heat
pump being installed with this thermostat requires a “B” termi-
nal,to energizethe changeoverrelay inHEAT,the O/Bswitch
must be moved to the “B” position.
ARMCHAIR PROGRAMMING
Armchair Programming is a unique feature that allows your
thermostattobeprogrammedbeforebeingmountedonthewall.
If you do not want to Armchair Program, the thermostat can be
programmedafterbeingmountedonthewallandsystempower
turned on.
If you wish to Armchair Program your thermostat, temporarily
holdanew9-voltbattery againstthe wiresinthe batterycutout
on the back of the thermostat base for approximately 45
seconds.Thiswill provide achargethat will lastapproximately
30 to 45 minutes to allow the thermostat to be programmed.
After programming, the thermostat must be mounted on the
wall, wires connected and system power turned on.
To have sufficient time to complete the installation without
losingtheprogramming,holdthe9-voltbatterytotheterminals
on the back of the base for 30 to 45 seconds again after
programming the thermostat. The battery must be removed
before mounting the thermostat on the wall.
ADJUSTABLE ANTICIPATION
Thefirst stage hasanticipationthatcanbe setto2.5or4 cycles
per hour for heating or cooling. The second stage heat has a
fixed anticipation. To change the first stage anticipation in the
HEAT or COOL mode, press SET TIME and VIEW PRGM
buttons at the same time until the desired setting is displayed
(Sfor slow (factory setting) or Ffor fast).
CHECK THERMOSTAT OPERATION
If at any time during testing, your system does not operate
properly, contact a qualified serviceperson.
Fan Operation
1. Turn on power to the system.
2. Move SYSTEM switch to OFF position.
3. MoveFANswitchtoON.Theblowershouldbegintooperate.
4. MoveFANswitchto AUTOposition. Theblowershould stop
within a short period of time.
NOTE
CAUTION
!
LOCKOUT BYPASS OPTION
FOR QUALIFIED SERVICE TECHNICIANS’ USE
ONLY.OPERATORSSHOULDNOTUSETHISFEA-
TURE DUE TO POSSIBILITY OF EQUIPMENT OR
PROPERTY DAMAGE, OR PERSONAL INJURY.
COMPRESSOR SHORT TERM
CYCLE PROTECTION
This thermostat has a built-in short term (5-minute)
time delay. During this 5-minute period, the thermo-
stat will lock out the compressor to allow head pres-
sure to stabilize. If you want to override this feature
while testing thermostat operation, simply press
and buttons at the same time.
DO NOT USE THE LOCKOUT BYPASS OPTION
UNLESSTHECOMPRESSOROILHEATERSHAVE
BEEN OPERATIONAL FOR 6 HOURS AND THE
SYSTEMHASNOT BEENOPERATIONALFORAT
LEAST 5 MINUTES.

5
OPERATION
Before you begin programming your thermostat, you should be
familiarwithitsfeaturesandwiththedisplayandthelocationand
operationofthethermostatbuttons.Yourthermostatconsistsof
two parts: the thermostat cover and the base. To remove the
cover, gently pull it straight out from the base. To replace the
cover, line up the cover with the base and press gently until the
cover snaps onto the base.
THE THERMOSTAT BASE
Other than and , the following buttons and switches are
located behind the door on the bottom of the thermostat cover
(see fig. 6). Pull the door down to open it.
The Thermostat Buttons and Switches
1
(Red arrow) Raises temperature setting.
2
(Blue arrow) Lowers temperature setting.
3
SET TIME button.
4
VIEW PRGM (program) button.
5
RUN PRGM (program) button.
6
HOLD TEMPerature button.
7
FAN switch (ON, AUTO).
8
SYSTEM switch (COOL, OFF, HEAT, EMER).
The Display
9
Indicates day of the week.
10
HEATisdisplayedwhentheSYSTEMswitchisintheHEAT
position.COOL isdisplayedwhentheSYSTEMswitchisin
the COOL position. COOL or HEAT is displayed (flashing)
when the compressor is in lockout mode.
11
Alternately displays current time and temperature.
12
EMERGENCYisdisplayedwhenthesystemswitchisinthe
EMER position.
13
Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
14
The word HOLD is displayed when the thermostat is in the
HOLD mode.
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and
display, read the following information to learn about the many
features of the thermostat.
•SIMULTANEOUS HEATING/COOLING PROGRAM
STORAGE—Whenprogramming,youcanenterbothyour
heatingandcoolingprogramsatthesametime.Thereisno
need to reprogram the thermostat at the beginning of each
season.
Figure 6. Thermostat display, buttons, and switches
3
2
1
4 5 6 7 8
EMER MALF AUX
WHITE-RODGERS
SU
HOLD
SA
COOL
EMERGENCY
AM
MO TU WE TH FR HEAT
9 910
1012 1113 14
11
COOL EMER
OFF HEAT
AUTOSET TIME VIEW PRGM RUN PRGM HOLD TEMP FAN ON
•TEMPERATURE OVERRIDE — Press or until the
display shows the temperature you want. The thermostat
will override current programming and keep the room
temperature at the selected temperature until the next
program period begins. Then the thermostat will automati-
cally revert to the program.
•HOLD TEMPERATURE — The thermostat can hold any
temperaturewithinitsrangeforanindefiniteperiod,without
reverting to the programmed temperature. Press HOLD
TEMP button. HOLD will be displayed. Then choose the
desired hold temperature by pressing or . The
thermostat will hold the room temperature at the selected
setting until you press RUN PRGM button to start program
operation again.
•°F/°C CONVERTIBILITY — Press SET TIME and HOLD
TEMP buttons until the temperature display is in Celsius
(°C). To display Fahrenheit (°F), repeat the process.
•TEMPERATURE DISPLAY ADJUSTMENT — Your new
thermostathasbeenaccuratelysetinourfactory.However,
if you wish, you may adjust your new thermostat tempera-
ture display to match your old thermostat. This can be
accomplished (within a ±4°F range) as follows:
1. Press VIEW PRGM and HOLD TEMP buttons at the
same time.
2. Press or to adjust the displayed temperature to
your desired setting.
3. PressRUNPRGMtoresumenormalprogramoperation.
•RESET BUTTON - (see fig. 2) resets the thermostat
program to the factory setting. This button can be used if
youdonotliketheprogramyouhaveenteredorifyouwish
to start over in the programming procedure. The reset
button can also be used to reset the program if the
thermostat has been subjected to a voltage spike and the
program has become scrambled or frozen.

6
PROGRAMMING YOUR THERMOSTAT
Nowyouarereadytoprogramyourthermostat.Thissectionwill
help you plan your thermostat’s program to meet your needs.
For maximum comfort and efficiency, keep the following guide-
lines in mind when planning your program.
• When heating (cooling) your building, program the tem-
peraturestobecooler(warmer)whenthebuildingisvacant
or during periods of low activity.
• During early morning hours, the need for cooling is usually
minimal.
Look at the factory preprogrammed times and temperatures
shownbelow.Ifthisprogramwillsuityourneeds,simplypressthe
RUN PRGM button to begin running the factory preset program.
If you want to change the preprogrammed times and tempera-
tures, follow these steps.
Determine the time periods and heating and cooling tempera-
tures for your weekday and weekend programs. You must
program four periods for both the weekday and weekend pro-
gram. However, you may use the same heating and cooling
temperatures for consecutive time periods. You can choose
start times, heating temperatures, and cooling temperatures
independently for both weekday and weekend programs (for
example, you may select 5:00 AM and 70°as the weekday 1st
period heating start time and temperature, and also choose
7:00 AM and 76°as the weekday 1st period cooling start time
and temperature).
Usethetableatthebottomofthepagetoplanyourprogramtime
periods,andthetemperaturesyouwantduringeachperiod.You
mayalsowanttolookatthesampleprogramtabletogetanidea
of how the thermostat can be programmed.
Entering Your Program
Follow these steps to enter the heating and cooling programs
you have selected.
Set Current Time and Day
1. PressSETTIMEbuttononce.Thedisplaywillshowthehour
only.
EXAMPLE:
PM
2. Press and hold either or until you reach the correct
hour and AM/PM designation (AM begins at midnight; PM
begins at noon).
3. Press SET TIME once. The display window will show the
minutes only.
EXAMPLE:
4. Press and hold either or until you reach the correct
minutes.
5. Press SET TIME once. The display will show the day of the
week.
6. Press or until you reach the current day of the week.
7. Press RUN PRGM once. The display will show the correct
time and room temperature alternately.
Enter Heating Program
1. Ifyouwant tochange thedisplayfrom Fahrenheitto Celsius
(or vice-versa), press SET TIME and HOLD TEMP at the
same time.
2. Move the SYSTEM switch to HEAT.
Heating Program for
ALL days of the Week: Cooling Program for
ALL Days of the Week:
PERIOD TIME TEMP PERIOD TIME TEMP
1st
2nd
3rd
4th
6:00 AM
8:00 AM
5:00 PM
10:00 PM
68°F
68°F
68°F
64°F
1st
2nd
3rd
4th
6:00 AM
8:00 AM
5:00 PM
10:00 PM
78°F
82°F
78°F
78°F
FACTORY PREPROGRAMMING
WEEKDAY (5 DAY) WEEKEND (2 DAY)
Start
Time* Temperature Start Time* Temperature
1ST HEAT
2ND HEAT
3RD HEAT
4TH HEAT
1ST COOL
2ND COOL
3RD COOL
4TH COOL
Heating/Cooling Schedule Plan
* We suggest that you program the thermostat so that the cooling system has
about 30 minutes to reach the desired temperature (for example, if the first
person gets up at 6:00 AM, program the first period to begin at 5:30 AM).
Period
WEEKDAY (5 DAY) WEEKEND (2 DAY)
Start
Time* Temperature Start Time* Temperature
1ST HEAT
2ND HEAT
3RD HEAT
4TH HEAT
1ST COOL
2ND COOL
3RD COOL
4TH COOL
SAMPLE
Heating/Cooling Schedule Plan
Period
5:30 AM
8:00 AM
5:00 PM
10:30 PM
6:30 AM
2:00 PM
5:00 PM
10:30 PM
7:00 AM
11:00 AM
6:00 PM
11:30 PM
7:00 AM
12:30 PM
6:00 PM
11:30 PM
68°F
70°F
70°F
65°F
76°F
74°F
72°F
78°F
68°F
65°F
70°F
65°F
76°F
78°F
72°F
78°F

7
3. PressVIEWPRGM once.“MO TU WE TH FR”(indicating
weekday program) will appear in the display. Also dis-
playedarethecurrentlyprogrammedstarttimeforthe1st
heating period and the currently programmed tempera-
ture (flashing).
EXAMPLE:
AM
MO TU WE TH FR
This display window shows that for the 1st weekday period,
the start time is 6:00 AM, and 68°is the programmed
temperature(thisexamplereflectsfactorypreprogramming).
4. Press or tochangethedisplayedtemperaturetoyour
selected temperature for the 1st heating program period.
5. Press SET TIME once (the programmed time will flash).
Press or until your selected time appears. The time
will change in 15 minute increments. When your selected
time is displayed, press SET TIME again to return to the
change temperature mode.
6. Press VIEW PRGM once. The currently programmed start
time and setpoint temperature for the 2nd heating program
period will appear.
7. Repeat steps 4 and 5 to select the start time and heating
temperature for the 2nd heating program period.
8. Repeatsteps4through6forthe3rdand4thheatingprogram
periods. Weekday heating programs are now complete.
9. Press VIEW PRGM once. “SA SU” (indicating weekend
program) will appear in the display, along with the start time
for the 1st heating period and the currently programmed
temperature.
10.Repeat steps 4 through 8 to complete weekend heating
programming.
11.When you have completed entering your heating program,
press RUN PRGM.
Enter Cooling Program
If the outside temperature is below 50°F, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during
cold weather may cause personal injury or property
damage.
1. Move SYSTEM switch to COOL position.
2. Follow the procedure for entering your heating program,
using your selected cooling times and temperatures.
CHECK YOUR PROGRAMMING
Follow these steps to check your thermostat programming one
final time before beginning thermostat operation.
1. Move SYSTEM switch to HEAT position.
2. Press VIEW PRGM to view the 1st weekday heating period
time and temperature. Each time you press VIEW PRGM,
the next heating period time and temperature will be dis-
played in sequence for weekday, then weekend program
periods(youmaychangeanytimeortemperatureduringthis
procedure).
3. Press RUN PRGM.
4. Move SYSTEM switch to COOL position.
5. Repeat step 2 to check cooling temperatures.
6. Press RUN PRGM to begin program operation.
YOUR THERMOSTAT IS NOW COMPLETELY PRO-
GRAMMED AND READY TO AUTOMATICALLY PROVIDE
MAXIMUM COMFORT AND EFFICIENCY!
CAUTION
!