1F82-261

Programmable Electronic Digital

Heat Pump Thermostat

INSTALLATION AND

OPERATION INSTRUCTIONS

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.

DESCRIPTION

Your new White-Rodgers 5-Day/1-Day/1-Day Digital 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 5-day (weekday) and 1-day/1-day (Saturday/Sunday) programming with four separate time/temperature periods per day

• Simultaneous heat and cool program storage

• Preprogrammed temperature control

• Optional battery back-up for AC power loss

• LCD continuously displays set point, and alternately displays time and room temperature

• Continuous Backlit display option

• Temperature override until next program period

• Manual program override (HOLD temperature)

• Temporary HOLD

• °F/°C convertibility

• Temperature range 45° to 90°F

• R, C, Y, W2, G, O/B, E, and L terminals for single or twotransformer systems

PRECAUTIONS

This thermostat is intended for use with a low voltage NEC

Class II system. Do not use this thermostat with a 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.

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.

Thermostat installation and all components of the system shall conform to Class II (current limited) circuits per the NEC code. Failure to do so could cause a fire hazard.

ELECTRICAL DATA

Electrical Rating:

20 to 30 VAC 50/60 Hz. or D.C.

0.05 to 1.0 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:

-4°F to 149°F

WHITE-RODGERS

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123-5398 www.white-rodgers.com

Printed in U.S.A.

SPECIFICATIONS

APPLICATIONS

For use with the following Class II systems:

• Standard heat pump systems with electric, gas or oil

Aux heat with 24VAC Hot and Common available

• Single-stage heat pump systems with no Aux heat with

24VAC Hot and Common available

DO NOT USE WITH:

• Millivolt systems

• Systems exceeding 30 VAC and 1.5 amps

• 3-wire zoned hydronic heating systems

PART NO. 37-6175D

Replaces 37-6175C

0225

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 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.

Optional (2) "AA" batteries

Screw anchors

W904

O/B switch

ATTENTION!

This product does not contain mercury. However, this product may replace a unit which contains mercury.

Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing nonabsorbent gloves, take up the spilled mercury and place into a container which can be sealed. If a cell becomes damaged, the unit should be discarded.

Mercury must not be discarded in household trash. When the unit this product is replacing is to be discarded, place in a suitable container and return to White-Rodgers at 9797 Reavis

Road, St. Louis, MO, 63123-5398 for proper disposal.

Mounting hole

Reset switch

(below Fan switch)

W904

Electric/Gas jumper

Mounting hole

Figure 1. Thermostat Base of AC power. Installed batteries will also allow programming prior to installation.

ATTACH THERMOSTAT BASE TO WALL

1. Remove the packing material from the thermostat. Gently pull the cover straight off the base. Forcing or prying on the thermostat will cause damage to the unit.

2. Connect wires beneath terminal screws on base using appropriate wiring schematic (see figs. 2 through 4).

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

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

5. Fasten base loosely to wall, as shown in fig. 1, 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.

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

ENERGY MANAGEMENT RECOVERY

(EMR)

When the EMR feature is activated the thermostat's microcomputer calculates the time it will take to change the room temperature to the next heat or cool program setting. Then the thermostat will start the system before the next programmed period so that the desired temperature is reached at or near the beginning of the period (the thermostat calculates 15 minutes for every 1°F temperature change). This minimizes the use of auxiliary stages during the transition period to reduce energy costs.

For example: 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 68F°, the thermostat will start the system at 5:30 to reach the programmed 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 better efficiency by allowing gradual temperature changes using only the first stage of heat.

To deactivate the EMR function, see the Configuration menu on Page 5). The thermostat will then wait until the programmed time to start the system for a temperature change.

ELECTRIC/GAS JUMPER (Fan Option)

Read the following information before clipping the nonelectric heat jumper. If you are unsure of your application, contact a qualified service person.

If your emergency or auxiliary system will energize the blower, then jumper, W904, on the thermostat base must 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.

OPTIONAL BATTERIES

With two "AA" batteries installed, your thermostat will maintain time and continuously display the temperature during a loss

2

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 requires a “B” terminal, to energize the changeover relay in HEAT, the O/B switch must be moved to the “B” position.

THERMOSTAT

O/B Y G W2 E C L R

SYSTEM

Changeover

Relay*

Compressor

Contactor

Fan

Relay

Aux

Relay

(Stage 2)

See Note **

Emergency

Relay

SYSTEM

MONITOR

SWITCH

* 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

** Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency

24 VAC

Hot

120 VAC

Neutral

TRANSFORMER

(Class II Current Limited)

Figure 2. 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.

THERMOSTAT

CUT AND

TAPE OFF!

HOT

O/B

Changeover

Relay*

Y G

Fan

Relay

W2

See Note **

E

Emergency

Relay

C

SYSTEM

MONITOR

SWITCH

L R

Limit or

Safety

Switches

SYSTEM

120 VAC

NEUTRAL

24 VAC

Compressor

Contactor

Aux

Relay

(Stage 2)

24 VAC

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

TWO COMMONS MUST

BE JUMPERED TOGETHER!

** Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency

TRANSFORMER

(Class II Current Limited)

Figure 3. Typical wiring diagram for two transformer systems with NO safety circuits

NOTE

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.

O/B Y

Changeover

Relay*

Compressor

Contactor

G

Fan

Relay

W2

See Note **

Aux

Relay

(Stage 2)

E

Emergency

Relay

C

SYSTEM

MONITOR

SWITCH

L R

THERMOSTAT

Limit or

Safety

Switches

24 VAC

ACCESSORY

RELAY N.O.

CONTACT

COMMON

SYSTEM

24 VAC 120 VAC

Limit or

Safety

Switches

HOT

NEUTRAL

Auxiliary

Heating

Transformer

(Class II

Current Limited)

NOTE

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

TWO COMMONS MUST

BE JUMPERED TOGETHER!

Limit or

Safety

Switches

Limit or

Safety

Switches HOT

* 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 COMMON

24 VAC 120 VAC

NEUTRAL

** Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency

Heat Pump Transformer

(Class II Current Limited)

Figure 4. Typical wiring diagram for two transformer systems with safety circuits in BOTH systems

3

CHECK THERMOSTAT OPERATION

If at any time during testing your system does not operate properly, contact a qualified service person.

Turn on power to the system.

Fan Operation

If your system does not have a G terminal connection, skip to

Heating System.

1. Move fan switch to ON position. The blower should begin to operate.

2. Move fan switch to AUTO position. The blower should stop immediately.

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 1° above room teemperature. The Heat Pump system should begin to operate. However, if the Flame icon ( ) and Snowflake icon

( ) are flashing, the compressor lockout feature is operating

(see Configuration menu, item 7).

3. Adjust temperature setting to 4° above room temperature.

The auxiliary heat system should begin to operate and the

Flame icon will be flashing.

4. Press to adjust temperature setting below room temperature. The heating system should stop operating.

Emergency System

EMER bypasses the Heat Pump to use the heat source wired to terminal E on the thermostat. EMER is typically used when compressor operation is not desired, or you prefer back-up heat only.

1. Move SYSTEM switch to EMER position, EMER will flash on the display.

2. Press to adjust the thermostat above room temperature. The Aux heating system will begin to operate. The

Flame icon ( )will display flashing to indicate that the Aux system is operating.

3. Press to adjust the thermostat below room temperature. The Aux heating system should stop operating.

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.

2. Press to adjust thermostat setting below room temperature. The blower should come on immediately on high speed, followed by cold air circulation

3. Press to adjust temperature setting above room temperature. The cooling system should stop operating.

CAUTION

Do not allow the compressor to run unless the compressor oil heaters have been operational for 6 hours and the system has not been operational for at least 5 minutes.

OPERATION

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, pull it straight out from the base. To replace the cover, line up the cover with the base and press until the cover snaps onto the base.

1

2

THE THERMOSTAT BASE

Other than and , the following buttons and switches are located on the bottom of the thermostat cover (see fig. 5).

TIME PRGM RUN HOLD

FAN

ON AUTO

OFF HEAT

COOL EMER

The Thermostat Buttons and Switches

1 Raises temperature setting.

2 Lowers temperature setting.

3 TIME button.

4 PRGM (program) button.

5 RUN (program) button.

6 HOLD temperature button.

7 FAN switch (ON, AUTO).

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

4

Fltr

3 4 5 6

9

MO TU WE TH FR

AM

7

8

9

SA SU MALF

10

FLTR HOLD

PM

EMER

16 13 15 11 14 13 12 11

Figure 5. Thermostat display, buttons, and switches

The Display

9 Indicates day of the week.

10 Indicates a malfunction with the system.

11 Flame icon ( ) is displayed when the SYSTEM switch is in the HEAT position. Flame icon ( ) is displayed flashing when 2nd-stage heat (Aux or Emergency) is energized.

Snowflake icon ( ) is displayed (non-flashing) when the

SYSTEM switch is in the COOL position. Snowflake and

Flame are displayed (flashing) if the thermostat is in lockout mode to prevent the compressor from cycling too quickly.

12 EMER is displayed flashing when the system switch is in

EMER position.

13 Alternately displays current time and temperature.

14 The word HOLD is displayed when the thermostat is in the

HOLD mode. HOLD is displayed flashing when the thermostat is in a temporary HOLD Mode.

15 Displays currently programmed set temperature (this is blank when SYSTEM switch is in the OFF position).

16 Displays FLTR when the system has run for the programmed filter time period as a reminder to change or clean your air filter.

Press HOLD to change to the next menu item or press TIME to go backwards to the previous item in the menu. To exit the menu and return to the program operation, press RUN. If no keys are pressed within fifteen minutes, the thermostat will revert to normal operation.

1) Select Temporary Hold Time - The thermostat can hold any temperature you set it to for the amount of time you select on this option. Your choices are 0:00 to 8:00 hours in 15 minute increments. 0:00 disables the function

Example: Using the Temporary Hold Function

1. You have selected 3:00 hours for the Temporary Hold time period.

2. With the thermostat set to Heat or Cool, press HOLD for

five seconds (time will show 3:00 hours as a setting reminder).

3. HOLD on the display will blink. Release the HOLD button after the temporary hold time is displayed.

4. Use or to set the temperature to your preference. The thermostat will maintain this temperature setting for 3 hours with HOLD blinking to remind you it is in Temporary Hold. After 3 hours the thermostat will go back to the program temperature and HOLD will no longer blink or display.

2) Select FA or SL (Fast or Slow) Heat Pump stage Cycle

Rate - The FA setting is used to produce shorter heating cycles. The SL setting produces a longer heating/cooling cycle. Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under .75°F and the SL setting cycles at approximately 1.2°F.

3) Select FA or SL (Fast or Slow) Auxiliary or Emergency

Cycle Rate - The FA setting is frequently used for gas, oil or electric heat. The SL setting produces a longer heating cycle. Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under .6°F and the SL setting cycles at approximately 1.°F.

CONFIGURATION MENU

The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements.

Press RUN to make sure the thermostat is in the run program mode, then press PRGM and RUN at the same time to enter the configuration menu. The display will show the first item in the configuration menu.

The configuration menu chart summarizes the configuration options. An explanation of each option follows.

Step Press Button(s)

Configuration Menu

Displayed (Factory Default) Press or to select: COMMENTS

Select temporary Hold time 1 PRGM and RUN

HOLD *

HOLD

(0:00)

0 to 8 hrs (in

15 minute increments)

FA 2

3

4

5

6

7

8

9

10

HOLD *

HOLD *

HOLD *

HOLD *

HOLD *

HOLD *

HOLD *

HOLD *

(SL)

EMER

(FA) d-L

(on)

E

(on)

Filter

(000)

LOC

(OFF)

0 HI

(0)

(F)

FA

(on)

SL

OFF

OFF

0 to 1950 hours

(in 50 hour increments) on

4 LO to

4 HI

C

OFF

11 RUN

* Press HOLD to advance to next item or TIME to move backwards to previous item

Select FA or SL (Fast or Slow) pump cycle rate

Select FA or SL (Fast or Slow) Auxiliary and

Emergency Aux heating cycle rate

Select display backlight OFF or ON

Select Energy Management Recovery OFF or ON

Select filter replacement run time

Select Compressor lockout OFF or ON

Select temperature display adjustment higher or lower

Select temperature display to F or C

Select fast second stage ON or OFF

Returns to normal operation

5

4) Select backlit display - The display backlight improves display contrast in low lighting conditions. Selecting backlight ON will keep the light on continuously. Selecting OFF will keep the light off.

5) Select Energy Management Recovery OFF or ON -

Energy Management Recovery (EMR) causes the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify.

6) Select filter replacement run time - The thermostat will display FLTR after a set time of operation. This is a reminder to change or clean your air filter. This time can be set from 0 to 1950 hours in 50 hour increments. A selection

of 000 will cancel this feature. When FLTR is displayed, you can clear it by pressing HOLD and RUN at the same time. This resets the timer and starts counting the hours until the next filter change. Contact your heat pump manufacturer for a specific replacement/maintenance interval.

7) Select Compressor Lockout LOC OFF or ON - Selecting

LOC ON will cause the thermostat to wait 5 minutes before turning on the compressor if the heating and cooling system loses power. It will also wait 5 minutes minimum between cooling or heating cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system. When the thermostat compressor time delay occurs it will flash the

Snowflake and Flame icons for about five minutes.

8) Select Temperature Display Adjustment 4 LO to 4 HI -

Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat. The current or adjusted room temperature will be displayed on the right side of the display.

9) Select F° or C° Readout - Changes the display readout to

Celsius or Fahrenheit as required. The current room temperature will be displayed on the right side of the display.

10) Select Fast second stage - In the RUN mode, if the temperature is manually raised by 3°F ( 2°C) or more above room temperature using and the fast second stage feature is enabled, FA on, the second stage will energige immediately. With FA off, the second stage will not energize until the setpoint temperature is 10°F or more above room temperature.

MANUAL OPERATION

• HOLD TEMPERATURE — With the SYSTEM switch set to

HEAT or COOL, momentarily press HOLD button. HOLD will be displayed. Use or to adjust the temperature.

The thermostat will hold the room temperature at the selected setting until you press RUN button to start program operation again.

• TEMPERATURE OVERRIDE — Press or until the temperature you want is displayed. 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 automatically revert to the program.

• TEMPORARY HOLD TEMPERATURE — The thermostat can hold any temperature within its range for the length of time selected in the configuration menu. See Configuration

Menu section, step 1.

PROGRAMMING 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.

Planning Your Program

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

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

Determine the time periods and temperatures for your program.

You must program four periods for each day. 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 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).

SAMPLE

Heating/Cooling Schedule Plan (Factory Program)

Period

1ST

WEEKDAYS

(5 Day)

Start

Time

6:00 AM

Temp

70

°

F

SATURDAY

(1 Day)

Start

Time

6:00 AM

Temp

70

°

F

SUNDAY

(1 Day)

Start

Time

6:00 AM

Temp

70

°

F

2ND

3RD

8:00 AM

5:00 PM

62

70

°

°

F

F

8:00 AM

5:00 PM

62

°

F

70

°

F

8:00 AM

5:00 PM

62

70

°

°

F

F

4TH

1ST

2ND

3RD

4TH

10:00 PM

6:00 AM

8:00 AM

5:00 PM

10:00 PM

62

78

85

78

82

°

°

°

°

°

F

F

F

F

F

10:00 PM

6:00 AM

8:00 AM

5:00 PM

10:00 PM

62

°

F

78

°

F

85

°

F

78

°

F

82

°

F

10:00 PM

6:00 AM

8:00 AM

5:00 PM

10:00 PM

62

°

F

78

°

F

85

°

F

78

°

F

82

°

F

6

Period

1ST

2ND

3RD

4TH

1ST

2ND

3RD

4TH

Heating/Cooling Schedule Plan

WEEKDAYS

(5 Day)

Start

Time Temp

SATURDAY

(1 Day)

Start

Time Temp

SUNDAY

(1 Day)

Start

Time Temp

Use the table to plan your program time periods and the temperatures you want during each period. Fill in the complete table to have a record of your programs.

Set Current Time and Day

1. Press TIME 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 TIME once again. The display window will show the minutes only.

EXAMPLE:

Entering Your Program

PM

4. Press and hold either or until you reach the correct minutes.

5. Press TIME once again. The display will show the day of the week.

6. Press or until you reach the current day of the week.

7. Press RUN once. The display will show the correct time and room temperature alternately.

6. Repeat steps 3 and 4 to select the start time and heating temperature for the 2nd heating program period.

7. Repeat steps 3 through 5 for the 3rd and 4th heating program periods.

8. Press PRGM once. “SA” (indicating Saturday program) will appear in the display, along with the start time for the 1st heating period and the currently programmed temperature.

9. Repeat steps 3 through 7 to complete Saturday heating programming.

9. Press PRGM once to change to SU (Sunday) heating programming and repeat steps 3 through 7 to complete

Sunday programming.

11.When you have completed entering your heating program, press RUN.

Enter Cooling Program

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. Follow Enter Heating Program for entering your cooling program, using your selected cooling times and temperatures.

Enter Heating Program

1. Move the SYSTEM switch to HEAT.

2. Press PRGM once. “MO TU WE TH FR” (indicating weekday program) will appear in the display. Also displayed are the currently programmed start time for the 1st heating period and the currently programmed temperature (flashing).

EXAMPLE:

MO TU WE TH FR

AM

This display window shows that for the 1st weekday period, the start time is 6:00 AM, and 68° is the programmed temperature (this example reflects factory preprogramming).

3. Press or to change the displayed temperature to your selected temperature for the 1st heating program period.

4. Press 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 TIME again to return to the change temperature mode.

5. Press PRGM once. The currently programmed start time and setpoint temperature for the 2nd heating program period will appear.

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 PRGM to view the 1st weekday heating period time and temperature. Each time you press PRGM, the next heating period time and temperature will be displayed in sequence for weekday, then Saturday and Sunday program periods (you may change any time or temperature during this procedure).

3. Press RUN.

4. Move SYSTEM switch to COOL position.

5. Repeat step 2 to check cooling program.

6. Move SYSTEM switch to HEAT or COOL and press RUN to begin program operation.

NOTE: Batteries are not required to keep your programming or menu data. With two optional “AA” batteries installed, your thermostat will maintain time and continuously display the temperature during a loss of AC power. Installed batteries will also allow programming prior to installation.

YOUR THERMOSTAT IS NOW PROGRAMMED AND READY TO

PROVIDE MAXIMUM COMFORT AND EFFICIENCY!

7

TROUBLESHOOTING

Reset Operation

If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermo-

Symptom

No Heat/No Cool/No Fan

(common problems)

No Heat

No Cool

Heat, Cool or Fan Runs Constantly.

Furnace Cycles Too Fast or Too Slow

(narrow or wide temperature swing)

Cooling Cycles Too Fast or Too Slow

(narrow or wide temperature swing)

Thermostat Setting and Thermometer

Disagree

Clock Loses or Gains Time

Heat or Cool Starts Early

Thermostat Does Not Follow Program

Blank Display and/or Keypad Not

Responding stat by pressing the reset button (see Fig 1). If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling service person or place of purchase.

Possible Cause

1. Blown fuse or tripped circuit breaker.

2. Furnace power switch to OFF.

3. Furnace blower compartment door or panel loose or not properly installed.

1. System Switch not set to Heat.

2. Loose connection to thermostat or system.

3. Heating System requires service or thermostat requires replacement.

1. System Switch not set to Cool.

2. Loose connection to thermostat or system.

3. Cooling System requires service or thermostat requires replacement.

1. Possible short in wiring.

2. Possible short in thermostat.

3. Possible short in Heat/Cool/Fan system.

4. Fan Switch set to Fan On.

1. The location of the thermostat and/or the size of the Heating System may be influencing the cycle rate.

1. The location of the thermostat and/or the size of the Cooling System may be influencing the

cycle rate.

1. Thermostat thermometer setting requires

adjustment.

1. Loss of power to thermostat.

1. EMR activated

1. AM or PM set incorrectly in program.

2. AM or PM set incorrectly on the clock.

3. Voltage spike or static discharge.

1. Voltage Spike or Static Discharge.

Corrective Action

Replace fuse or reset breaker.

Turn switch to ON.

Replace door panel in proper position to engage safety interlock or door switch.

Set System Switch to Heat and raise setpoint above room temperature.

Verify thermostat and system wires are securely attached.

Diagonistic: Set System Switch to Heat and raise the setpoint above room temperature. Within a five minutes the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed above. If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a service person to verify the heating system is operating correctly.

Set System Switch to Cool and lower setpoint below room temperature.

Verify thermostat and system wires are securely attached.

Same procedure as diagnostic for No Heat condition except set the thermostat to Cool and lower the setpoint below the room temperature.

There may be up to a five minute delay before the thermostat clicks in Cooling if the compressor lock-out option is selected in the configuration menu (Item 7).

Check each wire connection to verify they are not shorted or touching together. No bare wire should stick out from under terminal screws. Try resetting the thermostat as described below.

If the condition persists, the manufacturer of your system or service person can instruct you on how to test the Heat/Cool system for correct operation. If the system operates correctly, replace the thermostat.

Item 2 in the Configuration Menu is the adjustment that controls the cycle rate. If an acceptable cycle rate is not achieved using the FA (Fast) or SL

(Slow) adjustment contact a local service person for additional suggestions.

The cycle rate for cooling is fixed and can not be adjusted. Contact a local service person for suggestions.

The thermometer can be adjusted +/- 4 degrees as listed in item 8 of the Configuration Menu. No other adjustment is possible.

The thermostat will maintain its program in memory even with no power but the clock time will be incorrect when power is restored. See No

Heat/No Cool/No Fan (common problems) above for items to check in the system.

See Configuration Menu (Item 5).

Check current clock and program settings including the AM or PM designations for each time period.

If a voltage spike or static discharge occurs use the

Reset Operation listed above.

If a voltage spike or static discharge occurs use the

Reset Operation listed above.