Owner's Manual
Page 3
... & Operation Clock setting 6 Fan setting 7 System setting 8 Using program schedules 9 Program schedule overrides 13 Auto Changeover 15 Filter reminder 17 Special features 18 RTH7400/RTH7500 Series Appendices Battery replacement 19 Customer assistance 20 In case of difficulty 21 Limited warranty 23 This thermostat is pre-programmed and ready to go ! See...
... & Operation Clock setting 6 Fan setting 7 System setting 8 Using program schedules 9 Program schedule overrides 13 Auto Changeover 15 Filter reminder 17 Special features 18 RTH7400/RTH7500 Series Appendices Battery replacement 19 Customer assistance 20 In case of difficulty 21 Limited warranty 23 This thermostat is pre-programmed and ready to go ! See...
Owner's Manual
Page 5
RTH7400/RTH7500 Series Your new thermostat is pre-programmed and ready to bed at 10 pm To change, see pages 10-14 ONE-TOUCH TEMP CONTROL: You can ...
RTH7400/RTH7500 Series Your new thermostat is pre-programmed and ready to bed at 10 pm To change, see pages 10-14 ONE-TOUCH TEMP CONTROL: You can ...
Owner's Manual
Page 7
Quick reference to status display Current day of week Current inside temperature RTH7400/RTH7500 Series Current time Smart Response® Technology in effect (see page 15) System setting (see page 8) Mon 75 Recovery System Cool 6:01 AM Fan Auto Set to 75 Heat On System & Fan Schedule Clock & Mode Temperature setting Fan setting (see page 7) M28078 Other display messages: • Cool On: Cooling system is activated • Heat On: Heating system is activated • Aux Heat On: Auxiliary heating system is activated (heat pump systems only) 5 69-2222EF-03
Quick reference to status display Current day of week Current inside temperature RTH7400/RTH7500 Series Current time Smart Response® Technology in effect (see page 15) System setting (see page 8) Mon 75 Recovery System Cool 6:01 AM Fan Auto Set to 75 Heat On System & Fan Schedule Clock & Mode Temperature setting Fan setting (see page 7) M28078 Other display messages: • Cool On: Cooling system is activated • Heat On: Heating system is activated • Aux Heat On: Auxiliary heating system is activated (heat pump systems only) 5 69-2222EF-03
Owner's Manual
Page 9
System Heat System Fan Auto Fan Done M28082 7 69-2222EF-03 Fan setting Press SYSTEM & FAN System & Fan Schedule Clock & More M28081 Press FAN to select mode, then press DONE RTH7400/RTH7500 Series Press SYSTEM & FAN, then FAN to select fan operation: • On: Fan is always on. • Auto: Fan runs only when the heating or cooling system is on.
System Heat System Fan Auto Fan Done M28082 7 69-2222EF-03 Fan setting Press SYSTEM & FAN System & Fan Schedule Clock & More M28081 Press FAN to select mode, then press DONE RTH7400/RTH7500 Series Press SYSTEM & FAN, then FAN to select fan operation: • On: Fan is always on. • Auto: Fan runs only when the heating or cooling system is on.
Owner's Manual
Page 11
... you go to the time you leave home and the temperature you want during the evening, until you leave for weekdays and weekends. RTH7400/RTH7500 Series Save money by setting program schedules It's easy to the time you awaken and the temperature you want while you are away (usually an energy...
... you go to the time you leave home and the temperature you want during the evening, until you leave for weekdays and weekends. RTH7400/RTH7500 Series Save money by setting program schedules It's easy to the time you awaken and the temperature you want while you are away (usually an energy...
Owner's Manual
Page 13
..., then s or t to see weekdays. 2. Press NEXT STEP, then s or t to save & exit. Press DONE to set Heat temperature for this time period. 5. RTH7400/RTH7500 Series To adjust program schedules (RTH7400 only) Press SCHEDULE System & Fan Schedule Clock & More Press EDIT Go Back Edit M28084 View MON TUE WED THU FRI...
..., then s or t to see weekdays. 2. Press NEXT STEP, then s or t to save & exit. Press DONE to set Heat temperature for this time period. 5. RTH7400/RTH7500 Series To adjust program schedules (RTH7400 only) Press SCHEDULE System & Fan Schedule Clock & More Press EDIT Go Back Edit M28084 View MON TUE WED THU FRI...
Owner's Manual
Page 15
Program schedule override (temporary) RTH7400/RTH7500 Series Mon 62 System Heat System & Fan Adjust temperature Temporary Set to 68 6:08 AM Heat On Fan Auto Use Schedule Clock & More Press USE SCHEDULE ...
Program schedule override (temporary) RTH7400/RTH7500 Series Mon 62 System Heat System & Fan Adjust temperature Temporary Set to 68 6:08 AM Heat On Fan Auto Use Schedule Clock & More Press USE SCHEDULE ...
Owner's Manual
Page 17
... currently adjusting. Press the system button to select between the heat and cool to maintain a 3-degree separation between the cool and heat settings. RTH7400/RTH7500 Series AubtooutCyhoaunrgneeowvetrhermostat Use this feature in climates where both "Auto" and either mode. 15 69-2222EF-03 For example, if the heat temperature is raised to...
... currently adjusting. Press the system button to select between the heat and cool to maintain a 3-degree separation between the cool and heat settings. RTH7400/RTH7500 Series AubtooutCyhoaunrgneeowvetrhermostat Use this feature in climates where both "Auto" and either mode. 15 69-2222EF-03 For example, if the heat temperature is raised to...
Owner's Manual
Page 19
AFibltoeurtryeomuirndnewr thermostat RTH7400/RTH7500 Series Press RESET after changing the filter, to restart the timer. Press RESET. 3. M28090 17 69-2222EF-03 To reset the reminder interval before it is ...
AFibltoeurtryeomuirndnewr thermostat RTH7400/RTH7500 Series Press RESET after changing the filter, to restart the timer. Press RESET. 3. M28090 17 69-2222EF-03 To reset the reminder interval before it is ...
Owner's Manual
Page 21
Battery replacement RTH7400/RTH7500 Series Grasp thermostat and pull to run on AC power when installed. Insert 2 fresh AA alkaline batteries M28101 19 69-2222EF-03 The warning flashes about 30 days before leaving home for more than a month. Even if the warning does not appear, you should replace batteries once a year, or before batteries are optional (to provide backup power) if your thermostat was wired to remove from wallplate M28103 Batteries are depleted. Install fresh batteries immediately when the LO BATT warning begins flashing.
Battery replacement RTH7400/RTH7500 Series Grasp thermostat and pull to run on AC power when installed. Insert 2 fresh AA alkaline batteries M28101 19 69-2222EF-03 The warning flashes about 30 days before leaving home for more than a month. Even if the warning does not appear, you should replace batteries once a year, or before batteries are optional (to provide backup power) if your thermostat was wired to remove from wallplate M28103 Batteries are depleted. Install fresh batteries immediately when the LO BATT warning begins flashing.
Owner's Manual
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... acceptable ranges: key presses (or • Heat: 40° to 90°F (4.5° to 32°C). No response to 37°C). AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. not change) 21 69-2222EF-03 Most problems can be corrected quickly and...
... acceptable ranges: key presses (or • Heat: 40° to 90°F (4.5° to 32°C). No response to 37°C). AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. not change) 21 69-2222EF-03 Most problems can be corrected quickly and...
Owner's Manual
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... while the product was caused by the consumer. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to..., (i) return it, with a bill of sale or other dated proof of purchase, to you purchased it; or (ii) call Honeywell Customer Care at 1-800-468-1502. RTH7400/RTH7500 Series A1-byoeuatr yliomuirtendewwathrrearnmtyostat Honeywell warrants this product, excluding battery, to be defective or malfunctions...
... while the product was caused by the consumer. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to..., (i) return it, with a bill of sale or other dated proof of purchase, to you purchased it; or (ii) call Honeywell Customer Care at 1-800-468-1502. RTH7400/RTH7500 Series A1-byoeuatr yliomuirtendewwathrrearnmtyostat Honeywell warrants this product, excluding battery, to be defective or malfunctions...