About Honeywell RTH7400/RTH7500 Series Operating Manual

Congratulations! You’ve just purchased the world’s most advanced, easy-to-use thermostat. It has been designed to give you many years of reliable service and climate control.

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 read—even in the dark.

Honeywell RTH7400-RTH7500 Table of Content

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

Appendices
Battery replacement...................................19
Customer assistance..................................20
In case of difficulty......................................21
Limited warranty.........................................23

This thermostat is ready to go!

Your new thermostat is pre-programmed and ready to go. All you have to do is set the time and day. Then check the settings below and change if needed:
1. Set clock.......................................................................................... See page 6
2. Select fan setting: Preset to Auto........................................To change, see page 7
3. Select system setting: Preset to Heat.................................To change, see page 8
4. Program schedules: Preset to energy-saving levels while you’re at work or asleep (assumes you wake at
6 am, leave at 8 am, return at 6 pm and go to bed at 10 pm)...............................................................        .......To change, see pages 10–14

Honeywell RTH7400-RTH7500 Quick reference to status display

Honeywell RTH7400-RTH7500 Quick reference to status display

Clock setting

To set the current time display, press CLOCK, then press UP or DOWN to adjust the time. Press and holdUP or DOWN to advance the time more quickly. Press DONE to save & exit (or press GO BACK to exit without changing the time). Note: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and stores all date/time information. Note: To change the current week day display, see System Setup in your Installation Guide.

Honeywell RTH7400-RTH7500 Clock Setting

Fan setting

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.

Honeywell RTH7400-RTH7500 FAN Setting

System setting

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 the indoor temperature.
  • Off: All systems are off.
  • Em Heat (only for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Compressor is locked out. Note: The Auto and Em Heat system settings may not appear, depending on how your thermostat was installed.

Honeywell RTH7400-RTH7500 System Setting

Save money by setting program schedules

It’s easy to program your system for maximum energy savings. You can program four time periods each day, with different settings for weekdays and weekends.

  • Set to the time you awaken and the temperature you want during the morning, until you leave for the day.
  • Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level).
  • Set to the time you return home and the temperature you want during the evening, until bedtime.
  • Set to the time you go to bed and the temperature you want overnight (usually an energy-saving level).

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. (See next page to adjust times and temperatures of each time period.)

Honeywell RTH7400-RTH7500 Energy Saving

To adjust program schedules (RTH7400 only)

  1. Press SCHEDULE, then EDIT to see weekdays.
  2. Press SELECT DAY to highlight Mon-Fri (they will share the same settings).
  3. Press NEXT STEP twice, then press  UP or DOWN to set Wake time for selected days.
  4. Press NEXT STEP, then UP or DOWN to set Heat temperature for this time period.
  5. Press NEXT STEP, then UP or DOWN to set Cool temperature for this time period.
  6. Repeat steps 3-5 to program other time periods (LEAVE, RETURN, SLEEP), then press DONE.
  7. Repeat steps 1-6 to program Saturday/Sunday. (Press UP or DOWN until the desired day is flashing, then press SELECT DAY.)
  8. Press DONE to save & exit

adjust program schedules (RTH7400 only)

To adjust program schedules (RTH7500 only)

  1. Press SCHEDULE, then EDIT to see weekdays.
  2. Press SELECT DAY. You can select multiple days to program with the same settings.
  3. Press NEXT STEP twice, then press UP or DOWN to set Wake time for selected day(s).
  4. Press NEXT STEP, then UP or DOWN to set Heat temperature for this time period.
  5. Press NEXT STEP, then UP or DOWN to set Cool temperature for this time period.
  6. Repeat steps 3-5 to program other time periods (LEAVE, RETURN, SLEEP), then press DONE.
  7. Repeat steps 1-6 to program any remaining days. (Press s or t until the desired day is flashing, then press SELECT DAY.)
  8. Press DONE to save & exit

adjust program schedules (RTH7500 only)

Program schedule override (temporary)

Press UP or DOWN to immediately adjust the temperature. This will temporarily override the temperature setting for the current time period. The new temperature will be maintained until the next time period. When the timer expires, the program schedule will resume and set the temperature to the level you’ve programmed for the current time period. To cancel the temporary setting at any time, press USE SCHEDULE.

Honeywell RTH7400-RTH7500 Program schedule override (temporary)

Program schedule override (permanent)

Press UP or DOWN to adjust temperature, then press HOLD. This will turn off the program schedule. Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press USE SCHEDULE to cancel “Hold” and resume the program schedule.

Honeywell RTH7400-RTH7500 Program schedule override (permanent)

Auto Changeover

Use this feature in climates where both air conditioning and heating are used on the same day. When the system mode is in Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. While in the Auto mode, if a schedule override takes place (temporarily or permanently) the thermostat will automatically adjust the cooling and heating settings to maintain a 3-degree separation between the cool and heat settings.

For example, if the heat temperature is raised to where it gets within 3-dgrees of the cool setting, the display will show an up arrow next to “cool” to show the thermostat is raising the cool setting up to maintain a 3-dgreee separation. The display will also show both “Auto” and either “Heat” or “Cool” for which temperature setting you are currently adjusting. Press the system button to select between the heat and cool to view/adjust either mode.

If the cool temperature is lowered to where it gets close to the heat setting, an arrow next to heat will show the thermostat is lowering the heat setting down to maintain a 3-degree separation.

Honeywell RTH7400-RTH7500 Auto Changeover

Filter Reminder

If activated during installation, the furnace filter reminder alerts you when it is time to replace your filter.

Press RESET after changing the filter, to restart the timer.

To reset the reminder interval before it expires:

  1. Press MORE, then NEXT.
  2. Press RESET.
  3. Press DONE to save and exit.

Honeywell RTH7400-RTH7500 Filter Reminder

Special Features

Smart Response® Technology: This feature allows the thermostat to “learn” how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. For example: Set the Wake time to 6 am, and the temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the time you wake at 6. The message “Recovery” is displayed when the system is activated before a scheduled time period.

Compressor Protection: This feature forces the compressor to wait a few minutes before restarting, to prevent equipment damage. During the wait time, the message “Wait” is displayed on screen.

Auto Changeover: This feature is used in climates where both air conditioning and heating are used on the same day. When the system is set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees apart. The thermostat will automatically adjust settings to maintain this 3-degree separation.

Battery replacement

Batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed.

Install fresh batteries immediately when the LO BATT warning begins flashing. The warning flashes about 30 days before batteries are depleted.

Even if the warning does not appear, you should replace batteries once a year, or before leaving home for more than a month

Honeywell RTH7400-RTH7500 Battery replacement

 

Readmore and Download Honeywell RTH7400-RTH7500 Manual 

Title

: Download Honeywell RTH7400-RTH7500 Manual 

Format

: PDF

Pages

: 56 Pages

Language

: English

File Size

: 3 MB