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Honeywell RTH7400D

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RTH7400D Programmable Thermostat

OWNERS GUIDE

The RTH7400D Thermostat provides electronic control of 24 Vac heating and cooling systems or 750 mV heating systems.
For assistance with your Honeywell product, please visit www.honeywell.com/yourhome or call Honeywell Customer Care toll free at 1-800-468-1502.
Read and Save these Instructions
Patents Pending U.S. Registered Trademark 2004 Honeywell International Inc. All Rights Reserved

69-1726-1

Contents
Prepare for Installation.. 3 Follow Important Instructions.. 5 Remove Old Thermostat.. 6 Follow Special Instructions.. 7 Label Old Thermostat Wires... 10 Mount New Wallplate to Wall.. 11 Connect Wires to New Wallplate.. 15 Install Batteries.. 23 Attach New Thermostat to Wallplate.. 24 Configure Installer Setup.. 26 Customer Assistance.. 62 Limited One-Year Warranty... 63

69-17261

Step 1. Prepare for Installation
1. Check that the following items are included:
WALLPLATE THERMOSTAT MOUNTING SCREWS (2) AND WALL ANCHORS (2) OWNER'S GUIDE WIRE LABELS CAUTION CARD

OWNER'S GUIDE

CAUTION
TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel before you begin. Match the letter of your old thermostat wire with the terminal of the corresponding letter on your new thermostat or base.

fusibles-interruptor t

B G R H

Y2 H RC W

C L RH W1 X2

E O T W2

F P U W3 Y1

V/VR V/VR

Read and save these instructions

ell.com/yourhome

M22278
If any of the items shown above are missing, call Honeywell Customer Care at 1-800-468-1502 before returning the thermostat to the store.
Step 1. Prepare for Installation (Cont)
2. Check that you have everything required for the installation: Two AA alkaline batteries No. 2 Phillips screwdriver and standard pocket screwdriver Drill Drill bituse 3/16 in. for drywall; use 7/32 in. for plaster Level (optional) Hammer Pencil Electrical tape
Step 2. Follow Important Instructions
1. Do not connect the wires to the new thermostat based on wire color because damage can occur to the heating and/or cooling system. These Installation Instructions explain later how to use the enclosed wire labels to correctly mark the wires connected to your old thermostat.

OLD THERMOSTAT

YELLOW WHITE
DO NOT WIRE NEW THERMOSTAT BASED ON WIRE COLOR.

ORANGE

M22034
Step 3. Remove Old Thermostat
1. 2. 3. Turn off power at the heating and/or cooling system or fuse/circuit breaker panel. Remove the cover from the old thermostat. Remove the old thermostat from the wall or wallplate. Do not remove the wires.

WALLPLATE

THERMOSTAT
.18.2.9.7.5 O.25 N G E R.4.3
If you are replacing a thermostat that contains mercury in a sealed tube, do not place your old thermostat in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of an old thermostat containing mercury in a sealed tube.

69-17261 6

MERCURY NOTICE

M22036

Step 4. Follow Special Instructions
1. 2. 3. If you have two C and/or C1 wires connected to your old thermostat, do not connect them to your new thermostat. Disconnect the C and/or C1 wires. Make sure they do not touch each other or any other wires. Wrap the bare end of each C and/or C1 wire with electrical tape.

Y G C R C

LETTER DESIGNATION SCREW TERMINAL WIRE
WIRE HOLE DO NOT CONNECT TO NEW THERMOSTAT

M22201

Step 4. Follow Special Instructions (Cont)
4. If you have only one C and/or C1 wire connected to your old thermostat, connect this wire to C on the new thermostat.
WIRE HOLE CONNECT TO THE "C" ON THE NEW THERMOSTAT

M22223

5. 6. If you find any wires not connected to your old thermostat, do not connect them to your new thermostat. Wrap the end of the wires that are not connected with electrical tape.
LETTER DESIGNATION SCREW TERMINAL

G R RC

WIRE WIRE HOLE WIRES NOT CONNECTED DO NOT CONNECT TO NEW THERMOSTAT

M22040

Step 5. Label Old Thermostat Wires
1. As you disconnect each wire, use the enclosed wire labels to wrap a wire label around each wire that matches the letter designation. Do not allow the wires to fall into the wall opening after the wires are disconnected. Remove any remaining part of the old thermostat from the wall.
WIRE LABEL LETTER DESIGNATION SCREW TERMINAL

WIRE HOLE

M22039
When connecting the wires to the new thermostat, refer to the wire labels. Do not connect wires to your new thermostat based on the color of the wire.
Step 6. Mount New Wallplate to Wall
1. Separate the wallplate from the thermostat as shown.

WALLPLATE WIRE HOLE

M22267
Step 6. Mount New Wallplate to Wall (Cont)
2. Pass the labeled wires through the wire hole on the wallplate.

WALL OPENING

LABELED WIRES

M22279

3. Position the wallplate on the wall with the arrow pointing up. Level the wallplate (for appearance only) and mark the two mounting holes with a pencil.
PLACE LEVEL ON SUPPORT TABS LEVEL MARK MOUNTING HOLES (2)

M22292

4. 5. Move the wallplate aside and drill holes at the locations marked on the wall. Drill 3/16 in. holes for drywall or 7/32 in. holes for plaster. Tap the wall anchors into the drilled holes until even with the wall surface.
DRILLED HOLES (2) WALL ANCHORS (2)

M22293

MOUNTING SCREWS (2)
Position the wallplate over the wall anchors. Insert the mounting screws into the wall anchors. Check leveling, if desired, and tighten the mounting screws.
Step 7. Connect Wires to New Wallplate
1. 2. Match the labeled wires to the letter designations on the wallplate. Select the correct letter designations to follow for your system. If you have a standard heating and/or cooling system, use the CONVENTIONAL letter designations. If you have a heat pump system, use the HEAT PUMP letter designations to wire the new thermostat.

M22294

See table on page 30 to help you determine if you have a CONVENTIONAL or HEAT PUMP system.

15 69-17261

Step 7. Connect Wires to New Wallplate (Cont)
3. 4. If wires are to be connected to both Rc and R, loosen the Rc and R screw terminals and remove the metal jumper wire. If only one of the terminals, Rc or R, is to be connected, leave the metal jumper wire in place.
TERMINAL BLOCK SCREW TERMINALS LETTER DESIGNATIONS

METAL JUMPER WIRE

M22295
5. Loosen the screw terminals. Insert the labeled wires into the holes on the side of the terminal block that match the letter designations. Tighten the screw terminals. If any of the labeled wires do not match the letter designations, see next page for wire connections.
LABELED WIRES TERMINAL BLOCK SCREW TERMINALS CONVENTIONAL LETTER DESIGNATIONS

INSERT WIRE IN HOLE

M22325
Step 7. Connect Wires to New Wallplate (Cont) 7. Compare letter designations on your old and new thermostats. Use the information below if you are wiring a CONVENTIONAL System. Use the information on page 20 if you are wiring a Heat Pump system.
CONVENTIONAL letter designations on the new thermostat
Possible letter designations on the labeled wires

RC or R

R or RH, 4, V

W or W1, H

Y or Y1, M

G or F

C or C1, X, B

C Y2 W2

M22208
Do not connect more than one wire to each terminal. Be sure to read the notes referenced in the numbered triangles above. These numbered notes appear on the next page.

69-17261 18

NOTES FOR CONVENTIONAL HEATING AND COOLING SYSTEMS 1 If wires will be connected to both RC and R on the new thermostat, remove metal jumper wire between RC and R. Leave metal jumper wire in place if only one of the terminals, RC or R, will be connected on the new thermostat. 2 If wires were connected to both R and RH terminals on the old thermostat, remove metal jumper wire between RC and R on the new thermostat. Connect the old R to the new RC and the old RH to the new R. 3 If two C and/or C1 wires were connected to the old thermostat, do not connect them to the new thermostat. Wrap the bare end of each wire separately with electrical tape and do not use. 4 If one C and/or C1 wire was connected to the old thermostat, the wire should be connected to the "C" letter designation on the new thermostat.

M22246

8. Compare letter designations on your old and new thermostats. Use the information below if you are wiring a HEAT PUMP system.
Possible letter designations on the labeled wires HEAT PUMP letter designations on the new thermostat

VR or V or R

H or B, O

Y1 or M or Y

Y G C L E AUX

M22210

F or G

X or B, C

F or L

X2 or X, E

AUX, W1, W or W2
Be sure to read the note referenced in the numbered triangles above. These numbered notes appear on the next page.

69-17261 20

NOTES FOR HEAT PUMP SYSTEMS 1 Leave metal jumper wire between RC and R in place. 2 If the old thermostat had separate wires on both the V and VR, some system modification is required. Call your local heating and cooling contractor for assistance. 3 If the old thermostat had wires on both O and B, be sure to attach the B wire to the C letter designation on the new thermostat. If another wire is already matched to the C, contact Honeywell. 4 If the old thermostat had wires on W1, Y1 and W2, some system modification is required. Call your local heating and cooling contractor for assistance.

M22245

Step 7. Connect Wires to New Wallplate (Cont) 9. Push excess wire back into the wall opening. Keep wires in the shaded area.

WIRE WALLPLATE

WALL OPENING SHADED AREA

M22297

Step 8. Install Batteries
1. Install two fresh AA alkaline batteries on the back of the thermostat as marked on the thermostat.
BATTERIES (2) BATTERY HOLDER

BACK OF THERMOSTAT

M22259
Remove tab labeled Remove during installation in the lower right corner of the thermostat back.

REMOVE TAB

REMOVE DURING INSTALLATION

M22298

Step 9. Attach New Thermostat to Wallplate
1. Align the screw blocks with the pins on the back of the thermostat.
WALLPLATE TERMINAL SCREW BLOCK
PINS ON BACK OF THERMOSTAT
Push the thermostat straight onto the wallplate until it snaps into place. Turn on the power at the heating and/or cooling system or fuse/circuit breaker panel. If the wires interfere with mounting the thermostat to the wallplate, push the excess wire back into the wall opening.

M22299

Step 10. Set the Calendar
This thermostat is designed to automatically keep current time and day in memory for up to ten years, under normal use, once the calendar is set. When the thermostat is first powered, the display is ready to set the calendar. 1. Use Up or Down arrow button to set the Month.

YEAR DAY UP AND DOWN BUTTONS CHANGES MONTH, DAY AND YEAR
FanUseEdit Schedule NextHoldStep
DONE BUTTON ADVANCES TO TIME SETTING SCREEN NEXT BUTTON ADVANCE TO NEXT SETTING

M22302

GO BACK BUTTON GOES BACK TO LAST SETTING

2. 3. 4. 5.

Press the Next button to advance to the Date. Use the Up or Down arrow button to set the Date. Press the Next button to advance to the Year. Use the Up or Down arrow button to set the Year.
The calendar can be set anytime. See Step 11, Configure Installer Setup, for instructions.

25 69-17261

Step 10. Set the Calendar (Cont)
6. 7. Press the Done button to advance to the Time. Use the Up or Down arrow button to set the Time.
UP AND DOWN BUTTONS CHANGES TIME

More Done

DONE BUTTON ADVANCES TO HOME SCREEN

M22303

Press the Done button.
Step 11. Configure Installer Setup
1. Use the Installer Setup Menu to match your new thermostat to your heating and/or cooling system. Follow the steps in this section to set up your thermostat. Press and release the System button.

Set To

System Auto Fan Auto Heat Off Cool System & Fan Schedule Clock & More

M22304

Step 11. Configure Installer Setup (Cont)
3. Press and hold the center button for approximately five seconds, until the screen changes.
System Auto Fan Auto Em Heat Off Cool FanUseEdit System & Fan CancelDone

M22305

Release the center button when the display on your thermostat matches the display below.
ResetGo Back NextHoldStep

CancelDone

M22326
11. Configure Installer Setup (Cont)
5. 6. 7. Press the Up or Down arrows to select your setting for Installer Setup Number 0120 below. After you select your setting, press the Next button to go to the next Installer Setup Number. Follow steps 5 and 6 to set Installer Setup Numbers 0130, 0140 and 0150 to complete setting the calendar.

INSTALLER SETUP NUMBER

Period Wake Leave
FACTORY SETTING CHANGE THE FACTORY SETTING

Go Back

GOES BACK TO LAST INSTALLER SETUP

ADVANCE TO NEXT INSTALLER SETUP
PRESS TO EXIT INSTALLER SETUP
Installer Setup Number 0140 0150
Installer Setup Name Date (Year Upper) Date (Year Lower) Date (Month) Date (Day)
(Select Your Setting) Settings Select first two digits of current calendar year (20 for year 2005, etc). Select last two digits of current calendar year (05 for year 2005, etc). Select number that represents current calendar month. Select number that represents current calendar date.

M22307

8. 9. Press the Up or Down arrows to select your setting for Installer Setup Number 0170. After you select your setting, press the Next button to go to the next Installer Setup Number.
SETTING INSTALLER SETUP NUMBER GOES BACK TO LAST INSTALLER SETUP

Set To %

UP ARROW DOWN ARROW PRESS TO EXIT INSTALLER SETUP
Installer Installer Setup Setup Number Name
0170 System Type Selection
(Select Your Setting) Settings
1 - Heating and Cooling (Conventional) -- Gas, oil or electric heating with central air conditioning. 2 - Single-stage Heat Pump with no back-up or auxiliary heat -- the compressor runs in both heating and cooling. 3 - Heat Only with no fan (Conventional) -- Gas, oil or electric heating without central air conditioning. No wire on the G terminal on new thermostat. 4 - Heat Only with fan (Conventional) -- Gas, oil or electric heating without central air conditioning. Typically wires are R, W and G on new thermostat. 5 - Hot Water Heat Only (Conventional) -- Gas or Oil hot water heat with three wires connected to new thermostat or for normally closed hot water values with wires connected to R and Y on new thermostat. 6 - Cool Only (Conventional) -- Central air conditioning only. 7 - Multistage Heat Pumps -- heat pump with auxiliary or back-up heat. 8 - Multistage Conventional Heating and Cooling -2 stages of Heat (wires on W and W2) and 2 stages of Cool (wires on Y and Y2). 9 - Multistage Conventional Heating and Cooling -2 stages of heat (wires on W and W2) and 1 stage of Cool (wire on Y). 10 - Multistage Conventional Heating and Cooling -1 stage of heat (wire on W) and 2 stages of Cool (wires on Y and Y2).

M22308

10. 11. 12. If you do not have a number 0180 on the left side of your display, go to the next page. If you have a number 0180 on the left side of your display, press the Up or Down arrow to select your setting for Installer Setup Number 0180. After you select your setting, press the Next button to go to the next Installer Setup Number.
SETTING UP ARROW DOWN ARROW
Installer Setup Number 0180

Installer Setup Name

Fan Control 0 - Gas or Oil Heat -- Heating system controls fan in a call for heat. in Heating 1 - Electric Heat -- Thermostat controls fan in a call for heat.

M22309

13. 14. 15. If you do not have a number 0190 on the left side of your display, go to the next page. If you have a number 0190 on the left side of your display, press the Up or Down arrow to select your setting for Installer Setup Number 0190. After you select your setting, press the Next button to go to the next Installer Setup Number.
Installer Setup Number 0190
Heat Pump 0 - Changeover Valve in Cooling -Use this setting if you connected a Changeover wire labeled O to the O/B terminal. Valve 1 - Changeover Valve in Heating -Use this setting if you connected a wire labeled B to the O/B terminal.

M22310

16. 17. 18. If you do not have a number 0240 on the left side of your display, go to the next page. If you have a number 0240 on the left side of your display, press the Up or Down arrow to select your setting for Installer Setup Number 0240. After you select your setting, press the Next button to go to the next Installer Setup Number.
Installer Setup Number 0240
Installer Setup Name Heating Cycle Rate
(Select Your Setting) Settings 5 - Gas or Oil Furnace (less than 90% efficient). 9 - Electric Furnace. 3 - Gas or Oil Hot Water, Gas 90%+ High-Efficiency Furnace. 1 - Gas or Oil Steam, Gas or Oil Gravity.

M22329

19. 20. Press the Up or Down arrow to select your setting for Installer Setup Number 0320. After you select your setting, press the Next button to go to the next Installer Setup Number.
Installer Setup Number 0320
Temperature 0 - Fahrenheit Temperature Display. Indication 1 - Celsius Temperature Display. Scale

M22311

21. 22. Press the Up or Down arrow to select your setting for Installer Setup Number 0330. After you select your setting, press the Next button to go to the next Installer Setup Number.

Installer Setup Number 0330
Installer Setup Name Daylight Savings
(Select Your Setting) Settings 0 - Daylight Savings is Off -- clock will not adjust for Daylight Savings Time. 1 - Daylight Savings is On -- clock will automatically adjust for Daylight Savings Time.

M22312

23. 24. Press the Up or Down arrow to select your setting for Installer Setup Number 0500. After you select your setting, press the Next button to go to the next Installer Setup Number.
Installer Setup Number 0500
Installer Setup Name Furnace Filter Change Reminder
(Select Your Setting) Settings 0 - Furnace Filter change reminder is Off 1 - Approximately 1 month -- based on 10 days of fan run time. 2 - Approximately 3 months -- based on 30 days of fan run time. 3 - Approximately 6 months -- based on 60 days of fan run time. 4 - Approximately 9 months -- based on 90 days of fan run time. 5 - Approximately 1 year -- based on 120 days of fan run time. 6 - Approximately 3 years -- based on 365 days of fan run time.

M22313

25. 26. Press the Up or Down arrow to select your setting for Installer Setup Number 0530. After you select your setting, press the Next button to go to the next Installer Setup Number.
Installer Setup Number 0530
0 - Conventional recovery -- system Adaptive starts recovery at programmed Intelligent time. RecoveryTM 1 - Adaptive Intelligent RecoveryTM -system starts early so the setting is reached by the start of programmed period.

M22314

27. 28. 29. Press the Up or Down arrow to select your setting for Installer Setup Number 0640. After you select your setting, press the Done key to exit the Installer Setup and save your settings. Congratulations! The installation of the thermostat is complete.
SETTING INSTALLER SETUP NUMBER

Outside Saved Set To %

UP ARROW DOWN ARROW

Permanent Hold Clock

Installer Setup Number 0640
Installer Setup Name Clock Format
(Select Your Setting) Settings 12 - 12-hour clock format. 24 - 24-hour clock format.

M22315

Get to Know Your Thermostat Buttons Thermostat

DOWN BUTTON

LOWERS TEMPERATURE SETTING OR MAKES SELECTIONS IN OTHER SCREENS

UP ARROW BUTTON

RAISES TEMPERATURE SETTING OR MAKES SELECTIONS IN OTHER SCREENS

System

System & Fan

Schedule

Clock & More

SCHEDULE BUTTON

SELECTS PROGRAMMING MODE

SYSTEM & FAN BUTTON

SELECTS FAN AUTO OR ON SELECTS HEAT, OFF, COOL AND EM HEAT

CLOCK & MORE BUTTON

SELECTS TIME AND FURNACE FILTER INFORMATION

M22316

Get to Know Your Thermostat Display Display
SHOWS CURRENT DAY OF WEEK CURRENT TIME TEMPERATURE SETTING

System Schedule he

Clock & More M
CURRENT SYSTEM SETTING CURRENT FAN SETTING
INDICATES THERMOSTAT IS "CALLING FOR COOL OR HEAT"

M22317

Set System Setting Set System Setting
Press the System button to select Heat, Off or Cool: HeatThermostat controls the heating system. OffHeating and cooling systems are both off. CoolThermostat controls the cooling system. Em. Heat (Heat Pump Systems with Auxiliary Heat)Thermostat controls emergency heat and auxiliary heat, if needed. Heat Pump compressor is not operational.
Equipment Damage Hazard. Air conditioning compressor damage possible. Do not operate cooling system when outdoor temperature is below 50 F (10 C).
Set System Setting (Cont) Set Fan Setting
1. 2. Press System & Fan button. Press the Fan button to select Auto or On: AutoNormal setting for most homes.The fan runs only when the heating or cooling system is on. OnThe fan runs continuously. Use this setting for improved air circulation or for more efficient air cleaning.
Program Your Heating and Cooling Schedule Your thermostat can control up to four different schedule periods Monday through Friday and Saturday and/or Sunday : WakePeriod when you awaken and want your home at a comfortable temperature. LeavePeriod when you are away from home and want an energy-saving temperature. ReturnPeriod when you return home and want your home back to a comfortable temperature. SleepPeriod when you are asleep and want an energysaving temperature. Edit Schedule 1. Press the Schedule button.
System Heat System & Fan Schedule Clock & More

M22330

Press the View button to look at the schedule without editing the schedule.

43 69-17261

Program Your Heating and Cooling Schedule (Cont) 2. Press the Edit button.
Mon Tue Wed Thu Fri Sat Sun

Edit Go Back

M22331
Program Your Heating and Cooling Schedule (Cont) 3. Monday through Friday flashes. Press the Select Day button to select Monday through Friday. The days selected are scheduled with the same times and temperatures. Checkmarks appear next to the days selected.
Mon Tue Wed Thu Fri Sat Sun Select Day Next Step Cancel

M22332

You can select Mon-Fri as a block of days and select Saturday and Sunday separately. Use the Up and Down buttons to move up and down the list of days. Use the Select Day or DeSelect Day button to select the days you want to schedule.

45 69-17261

Program Your Heating and Cooling Schedule (Cont) 4. Press the Next Step button. Once pressed, Wake flashes to show it is selected.
SCHEDULE PERIOD HEAT OR COOL TEMPERATURES UP ARROW

Mon Tue Wed Thu Fri

DAYS SELECTED
CHANGES TIME AND TEMPERATURES

Go Back Next

DOWN ARROW

GO BACK BUTTON

GOES BACK TO THE LAST SCHEDULE STEP

DONE BUTTON

EXITS AND SAVES CHANGES MADE TO SCHEDULE

M22333

NEXT STEP BUTTON
ADVANCES PERIOD,TIME, HEAT AND COOL TEMPERATURES

5. 6. 7. 8. 9. 10. 11.

Press the Next Step button to select the Wake time. Use the Up and Down arrow buttons to change the time. Press the Next Step button to select the Heating temperature. Use the Up and Down arrow buttons to change the temperature. Press the Next Step button to select the Cooling temperature. Use the Up and Down arrow buttons to change the temperature. Repeat steps 5 through 10 for the Leave, Return and Sleep schedules.
Program Your Heating and Cooling Schedule (Cont) 12. When complete, press the Done button. Saved appears on the display to indicate changes are being saved to the day(s) selected.

Mon Tue Wed Thu Fri Sat

M22334
To set a program schedule for Saturday and Sunday, repeat steps 1 through 12.
To select Saturday and/or Sunday to schedule, use the Down arrow button until Sat or Sun is flashing. When the desired day(s) is flashing, press the Select Day button.

Set Time Set Time

1. 2. Press Clock & More button. Use the Up and Down arrow buttons to set the current time.

M22335

The current day of the week should already be set correctly. If not, see Step 11, Configure Installer Setup.

69-17261 48

Set Temperature Overrides Hold Temperature Until (Temporary Hold)
Hold temperature temporarily until the next scheduled period time. 1. Press the Up or Down arrow buttons next to the temperature you want to adjust. Temporary appears on the display above the set temperature.

MOVES TEMPERATURE SETTING UP OR DOWN

M22336

Press the Use Schedule button to cancel Temporary temperature and resume schedule.
Set Temperature Overrides (Cont) Permanent Hold
Permanent Hold changes the temperature setting until Permanent Hold is cancelled. 1. 2. Use the Up or Down arrow buttons to set the temperature you want during the hold. Press the Hold button. Permanent Hold shows on the display.

Use Schedule

M22337
Press the Use Schedule button to cancel Permanent Hold and resume the schedule.
The display shows Permanent Hold until it is cancelled.

Use Your Filter Timer

The Filter Timer notifies you when to change your furnace filter.

Reset Filter Timer

1. 2. Change Filter appears on the display when the filter timer expires. Press the Reset button to restart the filter timer.

System Heat

Schedule Reset

M22338

See Step 11 to turn the Filter Timer Change Reminder feature on or off.

51 69-17261

Use Your Filter Timer (Cont) View or Reset The Remaining Change Filter Time
1. 2. Press the Clock & More button. Press the Next button.

Change Filter

M22339
Press the Reset button to Restart the filter timer, if desired. Press the Done button.

69-17261 52

Understand Temperature Recovery Feature
Your thermostat comes with a feature called Adaptive Intelligent Recovery, which eliminates all guesswork when setting your schedule. How long does it take the furnace to warm your house in the morning before you get out of bed or how long does it take the air conditioner to cool your house in the afternoon before you return from work? No problem. The thermostat determines that for you. Simply set your program schedule to the time you want the house to be at your comfort temperature. The thermostat then turns on the heating or cooling at just the right time to have your home reach your scheduled temperature at your scheduled time. For exampleyou get out of bed at 6:00 AM and want the temperature to be 70F. Set the Wake period for 6:00 AM and 70F. The thermostat then turns on the heat before 6:00 AM to raise the temperature to 70F by 6:00 AM. The thermostat alerts that the heating or cooling system is coming on before a scheduled time when Recovery shows on the screen.

59 69-17261

Troubleshooting Tips (Continued)

If. Then.

Cannot set Check Installer Setup Number 0170, System setting Heating and/or Cooling System Type; make to Cool. sure the setting matches the installed heating and/or cooling system. Heat On is Set the System setting to Heat and set the not shown in temperature setting above the room the display. temperature. If Heat On is shown solidly in the display, but the heating system does not turn on, see Heating system does not turn on in the Troubleshooting Tips. Cool On is Set the System setting to Cool and set the not shown in temperature setting below the room the display. temperature. If Cool On is shown solidly in the display, but the cooling system does not turn on, see Cooling system does not turn on in the Troubleshooting Tips. Wait shows in Compressor minimum-off timer is active. the display. Wait up to five minutes for the cooling or heating system to turn on. Fan does not Check Installer Setup Number 0180, Fan turn on in a call Control in Heating, and make sure it is set for heat to Electric Heat. (electric furnaces only). Heat pump Check Installer Setup Number 0190, Heat puts out cool Pump Changeover Valve, and make sure air in the heat the setting matches the changeover mode and required by the installed heat pump. warm air in the cool mode (heat pumps only).
Both the heating and cooling systems are running at the same time.
Check Installer Setup Number 0170, Heating and/or Cooling System Type, and make sure the setting matches the installed heating and/or cooling system. Check and make sure the bare portions of the wires are not touching.
Heating system Check Installer Setup Number 0170, is running in Heating and/or Cooling System Type, and cool mode. make sure the setting matches the installed heating and/or cooling system. Heating system Check Installer Setup Number 0170, does not turn Heating and/or Cooling System Type, and off and the heat make sure the setting matches the installed temperature heating and/or cooling system. setting is set below the room temperature (Heat On is not shown in display). Red LED is on A system monitor is wired to the thermostat in the upper left L terminal. See Heating or Cooling system corner and the does not turn on in the Troubleshooting Heat Pump is Tips. not working.

Customer Assistance

Limited One-Year Warranty
Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywells option) within a reasonable period of time. If the product is defective, (i) return it, with a bill of sale or other dated proof of purchase, to the retailer from which you purchased it, or (ii) package it carefully, along with proof of purchase (including date of purchase) and a short description of the malfunction, and mail it, postage prepaid, to the following address: Honeywell Return Goods Dock 4 MN10-Douglas Dr N Golden Valley, MN 55422 This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer. Honeywells sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
Limited One-Year Warranty (Cont)
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limite, 35 Dynamic Drive, Scarborough, Ontario M1V4Z9.
Automation and Control Solutions
Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422
Honeywell Limited-Honeywell Limite 35 Dynamic Drive Scarborough, Ontario M1V 4Z9
www.honeywell.com/yourhome

doc1

5-1-1-Day Programmable Thermostats
RTH7400D 5-1-1-Day Programmable Thermostat
5-1-1-Day Programmable Thermostat
EASY PROGRAMMING FOR THE WEEK AND WEEKENDS

SPECIFICATIONS:

MODEL RTH7400D

Master Carton

Qty Dim. WxHxD (in.) Carton Wt. (lbs.) Cu. Ft 6 8.25 x 9.5 x 21.5 4.35 0.98

Retail Package

Qty Dim. WxHxD (in.) Carton Wt. (lbs.) Cu. Ft 1 8.25 x 9 x 3.25 0.72 0.14

RTH7400D

Compatibility Chart
24-Volt Heating and Air Conditioning Systems: Single Stage Heating and Cooling

Patents Pending

Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes

KEY FEATURES

5-1-1-day menu-driven programming Separate programming for weekdays, Saturday and Sunday 4 periods per day Universal application works with conventional and heat pump systems up to 2H/2C; its one thermostat for nearly every application Large, backlit display shows room temperature, set temperature and current time all at once Maximum comfort Smart Response technology learns the amount of time a system needs to reach a desired temperature and adjusts accordingly Program is retained in memory in the event of a power outage Real-time clock automatically adjusts for daylight savings time Precise temperature control of +/-1 F for consistent comfort Includes change reminders for lters and low batteries Armchair programming allows user to program the thermostat from his or her sofa or chair Save up to 33%* on your energy costs
*If used as directed. Savings may vary depending on geographic region and usage.
Multistage Heating and Cooling Heat Pump without Auxiliary Heat Heat Pump with Auxiliary Heat Gas Fireplace (24 Volt or 750 Millivolt) Electric Baseboard Heat (120-240 Volts) Central Air Conditioning Heating Only Cooling Only Hot Water Steam or Gravity 750 Millivolt Furnace (Warm Air)

UNITED STATES

CANADA
Automation and Control Solutions Honeywell 1985 Douglas Drive North Golden Valley, MN 55422-3992 800-468-1502 yourhome.honeywell.com
PM/67-5100 February Honeywell International Inc.

 

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