Owner's Manual
Page 2
... call Honeywell Customer Care toll-free at 1-800-468-1502 Read and save these instructions. ® U.S. Need Help? Registered Trademark. All rights reserved. Patents pending. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C). This manual covers the RTH7400 and RTH7500 models. (Pull thermostat from wallplate and turn over to find model number) This thermostat contains a Lithium battery...
... call Honeywell Customer Care toll-free at 1-800-468-1502 Read and save these instructions. ® U.S. Need Help? Registered Trademark. All rights reserved. Patents pending. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C). This manual covers the RTH7400 and RTH7500 models. (Pull thermostat from wallplate and turn over to find model number) This thermostat contains a Lithium battery...
Owner's Manual
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...-2222EF-03 Your new thermostat is ready to go . Table of contents About your new thermostat Thermostat features 2 Programming at a glance 3 Quick reference to controls 4 Quick reference to status display 5 Programming & 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...
...-2222EF-03 Your new thermostat is ready to go . Table of contents About your new thermostat Thermostat features 2 Programming at a glance 3 Quick reference to controls 4 Quick reference to status display 5 Programming & 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...
Owner's Manual
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It has been designed to read-even in the dark. 69-2222EF-03 2 Features • Easy-to-follow menu programming. • One-touch temp control overrides program schedule at any time. • Precise comfort control keeps temperature within 1°F of the level you set. • Change/check reminder lets you know when to replace furnace filter. • Large display with backlight is easy to give you many years of reliable service and climate control. You've just purchased the world's most advanced, easy-to-use thermostat. Operating Manual About your new thermostat Congratulations!
It has been designed to read-even in the dark. 69-2222EF-03 2 Features • Easy-to-follow menu programming. • One-touch temp control overrides program schedule at any time. • Precise comfort control keeps temperature within 1°F of the level you set. • Change/check reminder lets you know when to replace furnace filter. • Large display with backlight is easy to give you many years of reliable service and climate control. You've just purchased the world's most advanced, easy-to-use thermostat. Operating Manual About your new thermostat Congratulations!
Owner's Manual
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... fan setting: Preset to Auto To change if needed: 1.. Program schedules: Preset to energy-saving levels while you're at any time, and manually adjust the temperature (see pages 10-14 ONE-TOUCH TEMP CONTROL: You can override the program schedule at work or asleep (assumes you have to do is set the time and day. Set clock See page 6 2.. Select system setting: Preset to Heat To change , see pages 13-14). 3 69-2222EF-03 This thermostat...
... fan setting: Preset to Auto To change if needed: 1.. Program schedules: Preset to energy-saving levels while you're at any time, and manually adjust the temperature (see pages 10-14 ONE-TOUCH TEMP CONTROL: You can override the program schedule at work or asleep (assumes you have to do is set the time and day. Set clock See page 6 2.. Select system setting: Preset to Heat To change , see pages 13-14). 3 69-2222EF-03 This thermostat...
Owner's Manual
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Operating Manual Quick reference to controls Arrow buttons Press to adjust temperature (see page 8). System & Fan Press to select fan operation (see page 7) or system (see pages 11-14), or to set clock (see page 6) or furnace filter reminder. Schedule Press to set program schedule (see pages 11-12). 69-2222EF-03 4 M28426 Clock & More Press to make selections from screen menus.
Operating Manual Quick reference to controls Arrow buttons Press to adjust temperature (see page 8). System & Fan Press to select fan operation (see page 7) or system (see pages 11-14), or to set clock (see page 6) or furnace filter reminder. Schedule Press to set program schedule (see pages 11-12). 69-2222EF-03 4 M28426 Clock & More Press to make selections from screen menus.
Owner's Manual
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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
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... week day display, see System Setup in your Installation Guide. 6 Note: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and stores all date/time information. Operating Manual Clock setting Press CLOCK System & Fan Schedule Clock & More Adjust time, then press DONE Mon M28079 6:01 AM Go Back 69-2222EF-03 Done M28080 To set the current time display, press CLOCK, then press s or t to exit without changing the time). Press...
... week day display, see System Setup in your Installation Guide. 6 Note: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and stores all date/time information. Operating Manual Clock setting Press CLOCK System & Fan Schedule Clock & More Adjust time, then press DONE Mon M28079 6:01 AM Go Back 69-2222EF-03 Done M28080 To set the current time display, press CLOCK, then press s or t to exit without changing the time). Press...
Owner's Manual
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... for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Compressor is locked out. Operating Manual System setting Press SYSTEM & FAN System & Fan Schedule Clock & More Press SYSTEM to select mode, then press DONE M28081 System Heat System Fan Auto Fan 69-2222EF-03 Done M28083 Follow steps at left to select system: • Heat: Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Auto: Thermostat automatically selects heating or cooling depending on how your thermostat was installed. 8
... for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Compressor is locked out. Operating Manual System setting Press SYSTEM & FAN System & Fan Schedule Clock & More Press SYSTEM to select mode, then press DONE M28081 System Heat System Fan Auto Fan 69-2222EF-03 Done M28083 Follow steps at left to select system: • Heat: Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Auto: Thermostat automatically selects heating or cooling depending on how your thermostat was installed. 8
Owner's Manual
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Operating Manual Energy saving settings for maximum cost savings This thermostat is pre-set with energy saving program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.) Wake (6:00 am) Leave (8:00 am) Return (6:00 pm) Sleep (10:00 pm) Heat (Mon-Fri) Cool (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun...
Operating Manual Energy saving settings for maximum cost savings This thermostat is pre-set with energy saving program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.) Wake (6:00 am) Leave (8:00 am) Return (6:00 pm) Sleep (10:00 pm) Heat (Mon-Fri) Cool (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun...
Owner's Manual
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... s or t to set Wake time for this time period. 5. Press DONE to see weekdays. 2. Press SCHEDULE, then EDIT to save & exit. Repeat steps 1-6 to 62 Heat Next Step Done 1. M28086 Select day(s) Select time Select temp 11 69-2222EF-03 Press NEXT STEP, then s or t to set Heat temperature for this time period. 6. RTH7400/RTH7500 Series To adjust program schedules (RTH7400 only) Press SCHEDULE System & Fan Schedule Clock & More Press...
... s or t to set Wake time for this time period. 5. Press DONE to see weekdays. 2. Press SCHEDULE, then EDIT to save & exit. Repeat steps 1-6 to 62 Heat Next Step Done 1. M28086 Select day(s) Select time Select temp 11 69-2222EF-03 Press NEXT STEP, then s or t to set Heat temperature for this time period. 6. RTH7400/RTH7500 Series To adjust program schedules (RTH7400 only) Press SCHEDULE System & Fan Schedule Clock & More Press...
Owner's Manual
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Press NEXT STEP twice, then press s or t to program any remaining days. (Press s or t until the desired day is flashing, then press SELECT DAY.) 8. Press NEXT STEP, then s or t to set Cool temperature for this time period. 5. Repeat steps 1-6 to set Heat temperature for selected day(s). 4. Operating Manual To adjust program schedules (RTH7500 only) Press SCHEDULE System & Fan Schedule Clock & More Press EDIT Go Back Edit M28084 View MON TUE WED THU FRI...
Press NEXT STEP twice, then press s or t to program any remaining days. (Press s or t until the desired day is flashing, then press SELECT DAY.) 8. Press NEXT STEP, then s or t to set Cool temperature for this time period. 5. Repeat steps 1-6 to set Heat temperature for selected day(s). 4. Operating Manual To adjust program schedules (RTH7500 only) Press SCHEDULE System & Fan Schedule Clock & More Press EDIT Go Back Edit M28084 View MON TUE WED THU FRI...
Owner's Manual
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... temperature setting for the current time period. To cancel the temporary setting at any time, press USE SCHEDULE. 13 69-2222EF-03 When the timer expires, the program schedule will be maintained until the next time period. The new temperature will resume and set the temperature to immediately adjust the temperature. 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 to resume program schedule...
... temperature setting for the current time period. To cancel the temporary setting at any time, press USE SCHEDULE. 13 69-2222EF-03 When the timer expires, the program schedule will be maintained until the next time period. The new temperature will resume and set the temperature to immediately adjust the temperature. 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 to resume program schedule...
Owner's Manual
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Whatever temperature you manually change it, or press USE SCHEDULE to cancel "Hold" and resume the program schedule. Operating Manual Program schedule override (permanent) Mon 62 System Heat Adjust temperature Set to 6:08 AM 68 Fan Auto Permanent Hold Hold Cancel Press s or t to turn off program schedule and maintain set will turn off the program schedule. This will be maintained 24 hours a day, until you set temperature M28088 69-2222EF-03 14 Press HOLD to adjust temperature, then press HOLD.
Whatever temperature you manually change it, or press USE SCHEDULE to cancel "Hold" and resume the program schedule. Operating Manual Program schedule override (permanent) Mon 62 System Heat Adjust temperature Set to 6:08 AM 68 Fan Auto Permanent Hold Hold Cancel Press s or t to turn off program schedule and maintain set will turn off the program schedule. This will be maintained 24 hours a day, until you set temperature M28088 69-2222EF-03 14 Press HOLD to adjust temperature, then press HOLD.
Owner's Manual
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... both air conditioning and heating are 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. The display will automatically adjust the cooling and heating settings to view/adjust either "Heat" or "Cool" for which temperature setting you are used on the indoor temperature. RTH7400/RTH7500 Series AubtooutCyhoaunrgneeowvetrhermostat Use this feature in Auto, the thermostat automatically selects heating or cooling depending on the same day.
... both air conditioning and heating are 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. The display will automatically adjust the cooling and heating settings to view/adjust either "Heat" or "Cool" for which temperature setting you are used on the indoor temperature. RTH7400/RTH7500 Series AubtooutCyhoaunrgneeowvetrhermostat Use this feature in Auto, the thermostat automatically selects heating or cooling depending on the same day.
Owner's Manual
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... show the thermostat is increasing to maintain a 3-degree separation. CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C). 69-2222EF-03 16 Tue 69 1:09PM System Auto Fan Auto Heat Temporary Set To 74 Heat Cool System Hold Cancel M27486 The triangle indicates the cool temperature is lowering the heat setting down to maintain 3 degrees between heat and cool settings.
... show the thermostat is increasing to maintain a 3-degree separation. CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C). 69-2222EF-03 16 Tue 69 1:09PM System Auto Fan Auto Heat Temporary Set To 74 Heat Cool System Hold Cancel M27486 The triangle indicates the cool temperature is lowering the heat setting down to maintain 3 degrees between heat and cool settings.
Owner's Manual
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... Press DONE to replace your filter. Press RESET. 3. To reset the reminder interval before it is time to save and exit. AFibltoeurtryeomuirndnewr thermostat RTH7400/RTH7500 Series Press RESET after changing the filter, to restart the timer. Press RESET after changing filter Change Filter 70 Set to 6:01 AM 70 Heat On System Fan Auto Heat Reset Schedule Clock & More M28089 Press MORE to reset reminder interval 60 Days Reset Next Done If activated during installation, the furnace filter reminder alerts...
... Press DONE to replace your filter. Press RESET. 3. To reset the reminder interval before it is time to save and exit. AFibltoeurtryeomuirndnewr thermostat RTH7400/RTH7500 Series Press RESET after changing the filter, to restart the timer. Press RESET after changing filter Change Filter 70 Set to 6:01 AM 70 Heat On System Fan Auto Heat Reset Schedule Clock & More M28089 Press MORE to reset reminder interval 60 Days Reset Next Done If activated during installation, the furnace filter reminder alerts...
Owner's Manual
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... the furnace and air conditioner take to reach programmed temperature settings, so the temperature is set . When the system is reached at the time you wake at least 3 degrees apart. The thermostat will come on screen. CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C). 69-2222EF-03 18 Heat and cool settings must be at 6. Compressor Protection...
... the furnace and air conditioner take to reach programmed temperature settings, so the temperature is set . When the system is reached at the time you wake at least 3 degrees apart. The thermostat will come on screen. CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C). 69-2222EF-03 18 Heat and cool settings must be at 6. Compressor Protection...
Owner's Manual
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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. Battery replacement RTH7400/RTH7500 Series Grasp thermostat and pull to run on AC power when installed.
Owner's Manual
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... problems can be corrected quickly and easily. not change) 21 69-2222EF-03 temperature will • Cool: 50° to 99°F (10° to 32°C). AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. Display is blank • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling...
... problems can be corrected quickly and easily. not change) 21 69-2222EF-03 temperature will • Cool: 50° to 99°F (10° to 32°C). AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. Display is blank • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling...
Owner's Manual
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... the temperature is set cooling system higher than the Inside temperature. • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. • If "Wait" is displayed, the compressor protection timer is set system to Heat. Make sure the temperature is on. Operating Manual AInbcoausteyoouf rdnifefiwcutlhtyermostat Heating or • Press SYSTEM to set lower than the Inside temperature.
... the temperature is set cooling system higher than the Inside temperature. • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. • If "Wait" is displayed, the compressor protection timer is set system to Heat. Make sure the temperature is on. Operating Manual AInbcoausteyoouf rdnifefiwcutlhtyermostat Heating or • Press SYSTEM to set lower than the Inside temperature.