White Rodgers 1F84-51 User Manual

1F84-51

Programmable Electronic Digital

WHITE-RODGERS

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.

Heat Pump Thermostat

INSTALLATION AND

OPERATION INSTRUCTIONS

DESCRIPTION

Your new White-Rodgers 7-Day Digital Heat Pump Thermostat
uses the technology of a solid-state microcomputer to provide
precise time/temperature control. This thermostat offers you the
flexibility to design heating and cooling programs that fit your
needs.

Features:

• Separate program for each day of the week

• Simultaneous heat and cool program storage

• Preprogrammed temperature control

• Four separate time/temperature settings per 24 hour period

This thermostat is intended for use with a 24 volt system; do not
use this thermostat with a millivolt or line voltage system. If in
doubt about whether your wiring is millivolt, line, or low voltage,
have it inspected by a qualified heating and air conditioning
contractor or electrician.

Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and

ordinances.
This control is a precision instrument, and should be handled

carefully. Rough handling or distorting components could cause
the control to malfunction.

• LCD continuously displays set point, and alternately dis­plays 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

PRECAUTIONS

CAUTION

!

To prevent electrical shock and/or equipment damage
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.

WARNING

!

Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.

Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.

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

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398

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

Printed in U.S.A.

SPECIFICATIONS

PART NO. 37-5739A

Replaces 37-5613C

9637

INSTALLATION

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

L

E

Y

W2

O/B

R

G

C

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
thermostat has a wall mounting plate, remove the thermostat
and the wall mounting plate as an assembly.

3. Identify each wire attached to the old thermostat using

the 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 NON-

ELECTRIC HEAT SYSTEMS) and/or the EMR jumper (see
ENERGY MANAGEMENT RECOVERY). Check the set-
ting 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. Gently pull the thermostat cover straight off the base. Forcing
or prying on the thermostat will cause damage to the unit.

5. 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).

6. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.

7. Move base out of the way. Drill mounting holes.

8. 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.

9. Push excess wire into wall and plug hole with a fire-resistant
material (such as fiberglass insulation) to prevent drafts from
affecting thermostat operation.

NON-ELECTRIC HEAT SYSTEMS

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 is non-electric (gas, oil,
etc.) and will energize the blower, then jumper, W904, on the
back of the thermostat base must be cut (see fig. 1).

If your emergency or auxiliary heat system is electric and
requires that the thermostat energize the fan circuit, do not cut
jumper W904.

ENERGY MANAGEMENT RECOVERY

When the EMR feature is activated, the thermostat's microcom­puter automatically calculates the time it will take to change the
room temperature to the next program setting. Then the thermo­stat will start the heating or cooling system before the next

2

programmed period so that the desired temperature is reached
at or near the beginning of the next program period (the
thermostat calculates 30 minutes for every 2°F temperature
change).

For example, assume that the thermostat is programmed to
provide an overnight heating temperature of 66°F, and during
the next program period, beginning at 6:00 AM, the programmed
temperature is 70°F. With EMR activated, the thermostat will
automatically start the heating system at 5:00 AM, so that the
programmed temperature of 70°F is reached by about 6:00 AM.

If the overnight room temperature drops only to 68°, the thermo­stat will start the system at 5:30 to reach the programmed
temperature of 70° at 6:00.

The thermostat is shipped with the EMR feature active, which

(EMR)

means that the thermostat will start the system before the
beginning of the next program period. This feature provides
better efficiency by allowing gradual temperature changes using
only the first stage of heat and cooling.

To de-activate 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.

tion and wiring. For proper installation, refer to the original
manufacturer's instructions.

NOTENOTE

Relay contacts shown are thermostatically operated.The following wiring diagrams show typical terminal identifica-

FAN ON

FAN

AUTO

Heat

or Cool

Changeover

Relay*

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

FAN

AUTO

Emer

G W2

Fan

Relay

Aux/Emer

Relay

(Stage 2)

Figure 3. Typical wiring diagram for single transformer systems

NOTE

If safety circuits are in
only one of the systems,
remove the transformer
of the system with NO
safety circuits.

CUT AND

TAPE OFF!

HOT

120 VAC

NEUTRAL

* 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

24 VAC

Changeover

Relay*

Compressor

Contactor

FAN

AUTO

Heat

or Cool

Fan

Relay

FAN ON

FAN

AUTO

Emer

G W2

EMERGENCY

E

Emergency

Relay

EMERGENCY

Emergency

Aux/Emer

Relay

(Stage 2)

TWO COMMONS MUST
BE JUMPERED TOGETHER!

Thermostat

Control

Circuit

CYO/B

E

Relay

MALF

SYSTEM

MONITOR

SWITCH

24 VAC

Thermostat

Control

Circuit

CYO/B

L

R

TRANSFORMER

MALF

SYSTEM

MONITOR

SWITCH

THERMOSTAT

SYSTEM

Hot

120 VAC

Neutral

R

Limit or

Safety

Switches

24 VAC

THERMOSTAT

L

SYSTEM

Hot

120 VAC

Neutral

TRANSFORMER

Figure 4. Typical wiring diagram for two transformer systems with NO safety circuits

FAN ON

FAN

AUTO

Heat

or Cool

Changeover

Relay*

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

FAN

AUTO

Emer

G W2

Fan

Relay

EMERGENCY

Emergency

Aux/Emer

Relay

(Stage 2)

TWO COMMONS MUST
BE JUMPERED TOGETHER!

E

Relay

Thermostat

Control

Circuit

Figure 5. Typical wiring diagram for two transformer systems with safety circuits in BOTH systems

CYO/B

MALF

SYSTEM

MONITOR

SWITCH

L

R

COMMON

Limit or

Switches

Limit or

Safety

Switches

Polarity must be observed. If the HOT side of

NOTE

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.

THERMOSTAT

Safety

ACCESSORY

RELAY N.O.

24 VAC

24 VAC

CONTACT

COMMON

24 VAC 120 VAC

Heat Pump Transformer

SYSTEM

Auxiliary

Heating

Transformer

120 VAC

Limit or

Safety

Switches

NOTE

The accessory relay scheme
is required when safety
circuits exist in both systems.

Limit or

Safety

Switches

HOT

NEUTRAL

HOT

NEUTRAL

3

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 ener­gized in COOL. If the thermostat you are replacing or the heat
pump being installed with this thermostat require the “B” termi­nal, to energize the changeover relay in HEAT, the O/B switch
must be moved to the “B” position.

ARMCHAIR PROGRAMMING

Armchair Programming is a unique feature that allows your
thermostat to be programmed before being mounted on the wall.
If you do not want to Armchair Program, the thermostat can be
programmed after being mounted on the wall and system power
turned on.

If you wish to Armchair Program your thermostat, temporarily
hold a new 9-volt battery against the wires in the battery cutout
on the back of the thermostat base for approximately 45 sec­onds. This will provide a charge that will last approximately 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.

Heating System

1. Move SYSTEM switch to HEAT position. If the auxiliary
heating system has a standing pilot, be sure to light it.

2. Press to adjust thermostat setting to 90° and hold for five
seconds. Both stages of the heating system should begin to

operate. However, if the word HEAT is flashing, the com­pressor lockout feature is operating (see Lockout Bypass
Option to temporarily override the compressor lockout fea­ture during testing).

3. Press to adjust temperature setting below room tem­perature. The auxiliary heating system will stop immedi-

ately, and the first stage will stop within three to four
minutes.

Cooling System

CAUTION

!

To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.

1. Move SYSTEM switch to COOL position.

NOTE

To have sufficient time to complete the installation without losing
the programming, hold the 9-volt battery to the terminals 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

The first stage has anticipation that can be set to 2.5 or 4 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
(S for slow (factory setting) or F for 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. Move FAN switch to ON. The blower should begin to operate.

4. Move FAN switch to AUTO position. The blower should stop
within a short period of time.

2. Press to adjust thermostat setting below room tempera­ture. The blower should come on immediately on high speed,

followed by cold air circulation. However, if the fan is running
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 com­pressor lockout feature during testing).

3. Press
perature. The cooling system should stop operating.

to adjust temperature setting above room tem-

LOCKOUT BYPASS OPTION

FOR QUALIFIED SERVICE TECHNICIANS’ USE
ONLY. OPERATORS SHOULD NOT USE THIS FEA­TURE 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 thermo­stat will lock out the compressor to allow head pres­sure to stabilize. If you want to override this feature

while testing thermostat operation, simply press
and at the same time.

DO NOT USE THE LOCKOUT BYPASS OPTION
UNLESS THE COMPRESSOR OIL HEATERS HAVE
BEEN OPERATIONAL FOR 6 HOURS AND THE
SYSTEM HAS NOT BEEN OPERATIONAL FOR AT
LEAST 5 MINUTES.

4

Before you begin programming your thermostat, you should be
familiar with its features and with the display and the location and
operation of the thermostat buttons. Your thermostat consists of
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.

OPERATION

EMER MALF AUX

1

2

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

(Red arrow) Raises temperature setting.

1

(Blue arrow) Lowers temperature setting.

2

SET TIME/SET TEMP button.

3

VIEW PRGM (program) button.

4

RUN PRGM (program) button.

5

HOLD TEMP/ADV DAY button.

6

FAN switch (ON, AUTO).

7

SYSTEM switch (COOL, OFF, HEAT, EMER).

8

The Display

Indicates day of the week.

9

HEAT is displayed when the SYSTEM switch is in the

10

HEAT position. COOL is displayed when the SYSTEM
switch is in the COOL position. COOL or HEAT is displayed
(flashing) when the compressor is in lockout mode.

Alternately displays current time and temperature.

11

EMERGENCY is displayed when the SYSTEM switch is in

12

the EMER position.
Displays currently programmed set temperature (this is

13

blank when SYSTEM switch is in the OFF position).
The word HOLD is displayed when the thermostat is in the

14

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 — When programming, you can enter both your
heating and cooling programs at the same time. There is no
need to reprogram the thermostat at the beginning of each
season.

• TEMPERATURE OVERRIDE — Press or until the
display shows the temperature you want. The thermostat

will override current programming and keep the room

OFF HEAT

AUTOSET TIME VIEW PRGM RUN PRGM HOLD TEMP FAN ON

SET TEMP

3

4 5 6 7 8

ADV DAY

COOL EMER

9 910

SU

SA

HOLD

COOL

11

MO TU WE TH FR

EMERGENCY

HEAT

AM

1012 1113 14

Figure 6. Thermostat display, buttons, and switches

temperature at the selected temperature until the next
program period begins. Then the thermostat will automati­cally revert to the program.

• HOLD TEMPERATURE — The thermostat can hold any
temperature within its range for an indefinite period, without
reverting to the programmed temperature. Press HOLD
TEMP/ADV DAY 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/SET TEMP
and HOLD TEMP/ADV DAY buttons until the temperature
display is in Celsius (°C). To display Fahrenheit (°F), repeat
the process.

• TEMPERATURE DISPLAY ADJUSTMENT — Your new
thermostat has been accurately set in our factory. However,
if you wish, you may adjust your new thermostat tempera­ture display to match your old thermostat. This can be
accomplished (within a ±4° range) as follows:

1. Press VIEW PRGM and HOLD TEMP/ADV DAY buttons

at the same time.

2. Press or to adjust the displayed temperature to

your desired setting.

3. Press RUN PRGM to resume normal program operation.

• COPY DAY FUNCTION — This feature allows Monday’s
program to be copied into the rest of the week’s program­ming. This feature is only available the first time you
program your thermostat. To use this feature, simply
enter the program for Monday as described in PROGRAM­MING YOUR THERMOSTAT, and then press RUN PRGM.

5

• RESET BUTTON - (see fig. 2) resets the thermostat pro-

PM

HEAT

gram to the factory setting. This button can be used if you
do not like the program you have entered or if you wish 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.

example, heating/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 table on the following page 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
programmed.

PROGRAMMING YOUR THERMOSTAT

Now you are ready to program your thermostat. This section will
help you plan your thermostat’s program to meet your needs.
For maximum comfort and efficiency, keep the following guide­lines in mind when planning your program.

• When heating (cooling) your building, program 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.

Look at the factory preprogrammed times and temperatures
shown below. If this program will suit your needs, simply press
the RUN PRGM button to begin running the factory preset
program.

Heating Program for

ALL days of the Week:

PERIOD TIME TEMP PERIOD TIME

1st

2nd

3rd
4th

FACTORY PREPROGRAMMING

6:00 AM
8:00 AM
5:00 PM

10:00 PM

70°F
62°F
70°F
62°F

If you want to change the preprogrammed times and tempera­tures, follow these steps.

1. Determine the heating and cooling temperatures you want to
use. You may select up to four heating temperatures (HEAT
1, HEAT 2, HEAT 3, and HEAT 4), and up to four cooling
temperatures (COOL 1, COOL 2, COOL 3, and COOL 4).
Use the table below to write down the temperatures you have
selected.

Heat Temperatures Cool Temperatures

12341234

Your selected

temperatures*

Factory

pre-programmed

70°F62°F70°F62°F78°F85°F78°F82°F

temperatures*

* You may only program heating temperatures you have selected into the heating

program and cooling temperatures into the cooling program (for example, you
cannot program the COOL 1 temperature into your heating program). You may
program the temperatures you choose in any order, and you may use the same
temperature in consecutive program periods (for example, you may program
period 1 with temperature 1 and periods 2, 3, and 4 with temperature 2). You do
not have to use all possible temperature choices (for example, you may want to
select temperatures for HEAT 1 and HEAT 2 only – in this case, the HEAT 3 and
HEAT 4 temperatures would stay the same as previously programmed).

2. Determine the time periods during which you will program
the temperatures you have just selected. You must program
four periods for each day (periods 1, 2, 3, and 4). However,
you may use the same heating and cooling temperatures for
consecutive time periods. Also keep in mind that, for any
given day, you can only program one set of times for both
heating and cooling (for example, if you select 5:00 AM to
begin heating period 1 on Monday, then your cooling period
1 for Monday will also begin at 5:00 AM). However, you may
select different time periods for each day separately (for

6

Cooling Program for

ALL Days of the Week:

1st

6:00 AM

2nd

8:00 AM

3rd

5:00 PM

4th

10:00 PM

TEMP

78°F
85°F
78°F
82°F

ENTERING YOUR PROGRAM

Set Current Time and Day

1. Press SET TIME/SET TEMP button once. The display will
show the hour only.

EXAMPLE:

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/SET TEMP 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/SET TEMP 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.

Select Heating Temperatures

1. If you want to change the display from Fahrenheit to Celsius
(or vice-versa), press SET TIME/SET TEMP and HOLD
TEMP/ADV DAY at the same time.

2. Move the SYSTEM switch to HEAT.

3. Press SET TIME/SET TEMP four times. The display will
show the number 1, along with the currently programmed
HEAT 1 temperature.

EXAMPLE:

4. Press or to change the displayed temperature to your
selected HEAT 1 setting (if you only want to program a

temperature for HEAT 1, skip to step 8).

5. Press SET TIME/SET TEMP once. The number 1 will
change to the number 2, representing HEAT 2.

6. Press
temperature.

7. Repeat steps 5 and 6 to select HEAT 3 and HEAT 4
temperature settings, if desired.

8. Press RUN PRGM.

or until you reach your selected HEAT 2

THIS THERMOSTAT ALLOWS ONE SET OF TIMES FOR BOTH HEATING AND COOLING

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Time

Heat

Temp.

Heating/Cooling Schedule Plan

Cool

Temp. Time

Heat

Temp.

Cool

Temp. Time

Heat

Temp.

Cool

Temp. Time

Period 4Period 3Period 2Period 1

Temp.

Heat

Cool

Temp.

SAMPLE

Heating/Cooling Schedule Plan

THIS THERMOSTAT ALLOWS ONE SET OF TIMES FOR BOTH HEATING AND COOLING

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Time

5:00 AM

6:00 AM

5:00 AM

5:00 AM

5:00 AM

8:00 AM

8:00 AM

Heat

Temp.

65° (1)

65° (1)

65° (1)

65° (1)

65° (1)

65° (1)

70° (3)

Cool

Temp. Time

80° (1)

80° (1)

80° (1)

80° (1)

80° (1)

80° (1)

78° (2)

9:00 AM

8:00 AM

9:00 AM

9:00 AM

9:00 AM

10:00 AM

9:00 AM

Heat

Temp.

65° (1)

70° (3)

70° (3)

70° (3)

70° (3)

70° (3)

70° (3)

Enter Heating/Cooling Times and Heating
Temperatures

1. Move the SYSTEM switch to HEAT.

2. Press VIEW PRGM once. MO, the abbreviation for Monday,
will be displayed. Also displayed are the currently pro­grammed start time for the 1st heating/cooling period and the
currently programmed HEAT 1, 2, 3, or 4 temperature for the
1st heating/cooling period (flashing).

MO

EXAMPLE:

This example display shows that for the 1st Monday heating/
cooling period, the start time is 6:00 AM, and 70° is the
programmed temperature (this example reflects factory pre­programming).

AM

HEAT 1 = 65° COOL 1 = 80°
HEAT 2 = 68° COOL 2 = 78°
HEAT 3 = 70° COOL 3 = 76°
HEAT 4 = 72° COOL 4 = 74°

Period 4Period 3Period 2Period 1

Cool

Temp. Time

80° (1)

76° (3)

76° (3)

76° (3)

76° (3)

76° (3)

76° (3)

3:30 PM

4:30 PM

3:30 PM

5:30 PM

3:30 PM

3:30 PM

3:30 PM

Heat

Temp.

65° (1)

72° (4)

72° (4)

72° (4)

72° (4)

72° (4)

68° (2)

Cool

Temp. Time

80° (1)

11:30 PM

74° (4)

10:30 PM

74° (4)

11:30 PM

74° (4)

11:30 PM

74° (4)

10:30 PM

74° (4)

11:30 PM

76° (3)

9:30 PM

Heat

Temp.

65° (1)

65° (1)

65° (1)

65° (1)

65° (1)

65° (1)

65° (1)

Cool

Temp.

80° (1)

80° (1)

80° (1)

80° (1)

80° (1)

80° (1)

80° (1)

3. If the temperature displayed is not the HEAT 1, 2, 3, or 4
temperature you want for Monday’s period 1, press or

until the correct temperature is displayed (if you keep press­ing or , the HEAT 1, 2, 3, and 4 temperatures you

previously programmed will be alternately displayed).

4. To change the displayed start time to the time you have
selected for Monday’s heating/cooling period 1, press SET
TIME/SET TEMP once (the programmed time will flash).

Press or until your selected time is displayed. The
time will change in 30-minute increments. The time that you

program will be the start time of Monday’s period 1 for
both heating and cooling. After selecting the correct period

1 start time, press SET TIME/SET TEMP again to return to
the change temperature mode.

5. Press VIEW PRGM once. The currently programmed start
time and heating setpoint temperature for Monday’s heating/
cooling period 2 will be displayed.

(Programming instructions continue on next page.)

7

6. Repeat steps 3 and 4 to select the start time and heating
temperature for Monday’s 2nd heating/cooling period.

7. Repeat steps 3 through 5 for Monday’s 3rd and 4th heating/
cooling period. Monday’s heating program is now complete.

NOTE

If you are programming your thermostat for the first time, and you
want programming for all days of the week to be the same as
Monday’s program, press RUN PRGM at this point, and proceed
to the SELECT COOLING TEMPERATURES section (this
COPY DAY feature only works the first time you program your
thermostat; if you are changing your thermostat’s programming,
you must program each day separately).

8. Press HOLD TEMP/ADV DAY once. TU (indicating Tuesday’s
program) will be displayed, along with the start time for the
1st heating/cooling period and the currently programmed
heating setpoint temperature.

9. Repeat steps 3 through 7 to complete Tuesday’s heating
program.

10.Continue entering each day’s programming until all heating/
cooling periods and heating temperatures have been se­lected.

11.Press RUN PRGM to end heating programming. Proceed to
the SELECT COOLING TEMPERATURES section.

Select Cooling Temperatures

1. Move the SYSTEM switch to COOL.

2. Press SET TIME/SET TEMP four times. The display will
show the number 1, along with the currently programmed
COOL 1 temperature.

3. Press
selected COOL 1 setting (if you only want to program a

temperature for COOL 1, skip to step 7).

4. Press SET TIME/SET TEMP once. The number 1 will
change to the number 2, representing COOL 2.

5. Press or until you reach your selected COOL 2
temperature.

6. Repeat steps 4 and 5 to select COOL 3 and COOL 4
temperature settings, if desired.

7. Press RUN PRGM.

or to change the displayed temperature to your

Enter Cooling Temperatures

CAUTION

!

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. Press VIEW PRGM once. MO, the abbreviation for Monday,
will be displayed. Also displayed are the start time you
previously programmed for the 1st heating/cooling period
and the currently programmed COOL 1, 2, 3, or 4 tempera­ture for the 1st heating/cooling period (flashing). Remember

that the time you previously selected is for both heating
and cooling periods. If you change a programmed start
time now, it will also change the start time for the heating
program.

3. If the temperature displayed is not the COOL 1, 2, 3, or 4
temperature you want for Monday’s period 1, press

until the correct temperature is displayed (if you keep press­ing or , the COOL 1, 2, 3, and 4 temperatures you

previously programmed will be alternately displayed).

4. Press VIEW PRGM once. The currently programmed start
time and cooling setpoint temperature for Monday’s heating/
cooling period 2 will be displayed.

5. Repeat step 3 to select the cooling temperature for Monday’s
2nd heating/cooling period.

6. Repeat steps 3 and 4 for Monday’s 3rd and 4th heating/
cooling period. Monday’s cooling program is now complete.

or

NOTE

If you are programming your thermostat for the first time, and you
want programming for all days of the week to be the same as
Monday’s program, press RUN PRGM to begin program opera­tion (this COPY DAY feature only works the first time you
program your thermostat; if you are changing your thermostat’s
programming, you must program each day separately).

7. Press HOLD TEMP/ADV DAY once. TU (indicating Tuesday’s
program) will be displayed, along with the start time for the
1st heating/cooling period and the currently programmed
cooling setpoint temperature.

8. Repeat steps 3 through 6 to complete Tuesday’s cooling
program.

10.Continue entering each day’s programming until all cooling
temperatures have been selected.

11.Press RUN PRGM to end programming and begin program
operation.

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 Monday heating period
time and temperature. Each time you press VIEW PRGM,
the next heating period time and temperature for Monday will
be displayed in sequence. Press HOLD/ADV DAY to display
Tuesday’s 1st heating period program. Press VIEW PRGM
to check the remaining Tuesday heating period times and
temperatures. To check each day’s heating program, press
HOLD TEMP/ADV DAY to change days, then press VIEW
PRGM to look at each programming period for the day (you
may change any time or temperature during this procedure;
remember that if you change the start time, it changes for
both heating and cooling).

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 PRO­GRAMMED AND READY TO AUTOMATICALLY PROVIDE
MAXIMUM COMFORT AND EFFICIENCY!