Picture of the Honeywell RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen.

Set Honeywell Thermostat Temperature Limits on RTH9580WF WiFi Thermostat, How To




Honeywell WiFi thermostats offer several ways (at least) to cut your heating and cooling costs.  On the RTH9580WF, you can set these temp limits.  This allows you to control just how warm and how cool the t-stat will make the home.  In this post, we detail how to set Honeywell thermostat temperature limits on RTH9580WF WiFi t-stat.



How to Set Honeywell Thermostat Temperature Limits on RTH9580WF WiFi Thermostat

1. Bring Up T-Stat   Home   Screen

These t-stats usually display the   Home   screen by default.  But your screen may be blank, depending on how you’ve set up the backlight timeout settings.  In that case, just touch any spot on the touchscreen to turn on the display.

You should then see something like the screen we’ve shown next.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, showing its -Home- screen, with the -Menu-button highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF thermostat, showing its -Home- screen, with the -Menu-button highlighted.

2. Tap the   Menu   Button

Find the   Menu   button near the top right corner of the screen, as pointed at by the  green  arrow in the last picture.

Tapping the   Menu  button brings up the t-stat’s main menu, as shown next.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF smart thermostat, displaying the Menu Screen with Preferences button circled.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF smart thermostat, displaying the -Menu- screen with the -Preferences- button circled.

3. Tap the   Preferences   Button

Note that we’ve scrolled down the main menu to find the   Preferences   option, as circled.

Tapping   Preferences  displays the   Preferences   page, as shown next.

Again, we’ve scrolled down the   Preferences   page to bring the   Advances Preferences   button into view.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, displaying its -Preferences- screen, with the -Advanced Preferences- button highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, displaying its -Preferences- screen, with the -Advanced Preferences- button highlighted.



4. Tap the   Advanced Preferences   Button

The   Advanced Preferences   menu item can be found roughly two thirds the way down the   Preferences   menu, as shown in the last picture.

This brings up the first screen in the   Advanced Preferences   list of screens.  In our t-stat, we got the   Scheduling Options   page, as shown next.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, displaying its -Advanced Preferences, Scheduling Options- screen.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, displaying its -Advanced Preferences, Scheduling Options- screen.

5. Repeatedly Press the Green  Next   Button Until the   Temperature Limits   Screen Appears

On ours, we had to press this button four times to reach the Temp Limits page.  See the picture of this page in the next step.

6. Set the   Minimum Cool Limit   Value

On the left half of the  Temperature Limits   page is the   Minimum Cool Limit   adjustment control, as circled in green in the next picture.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Minimum Cool Limit- adjustment highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Minimum Cool Limit- adjustment highlighted.

Tap the UP and DOWN arrows until the minimum cool limit temperature you want appears.   We set ours to 50 degrees. See this in the last picture.  This means that our heating system will never try to cool our home to any temp colder than 50 degrees.



7. Set the   Maximum Heat Limit   Value

On the right half of the  Temperature Limits   page is the   Maximum Heat Limit   adjustment control, as circled in green in the next picture.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Maximum Heat Limit- adjustment highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Maximum Heat Limit- adjustment highlighted.

Tap the UP and DOWN arrows until the maximum heat temperature you want appears.  We set ours to 90 degrees here.  This means that our heating system will never warm our home to any temp hotter than 90 degrees.

8. Press the Red   Done   Button

Once you have set both the max heat and min cool temp values, tap the   Done   button, as pointed at by the green arrow in the next picture.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, displaying its -Temperature Limits- screen, with the red -Done- button highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, displaying its -Temperature Limits- screen, with the red -Done- button highlighted.

The RTH9580WF then returns you to the  Preferences   screen, as shown next.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, showing its -Preferences- page, with the -Previous Menu- button highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, showing its -Preferences- page, with the -Previous Menu- button highlighted.

9. Press the   Previous Menu   Button

Find the   Previous Menu   button in the last picture, pointed at by the green  arrow.

This takes you back to the   Main Menu,  as shown next.

Set Honeywell thermostat temperature limits on RTH9580WF. Picture of the RTH9580WF WiFi thermostat, showing its -Main Menu- page, with the -Home- button highlighted.
Set Honeywell thermostat temperature limits on RTH9580WF. The RTH9580WF WiFi thermostat, showing its -Main Menu- page, with the -Home- button highlighted.



10. Press the   Home   Button

This takes you back to the t-stat-s home screen.

11. Done!

We have now successfully set Honeywell thermostat temperature limits on our RTH9580WF WiFi thermostat.

Related Posts

References

Revision History

  • 2018-05-28: First published.