Honeywell Home RTH8500 Touchscreen Programmable Thermostat User Guide

Honeywell Home RTH8500 Touchscreen Programmable Thermostat

 

In the box, you will find

• Thermostat
• Wallplate (attached to thermostat)
• Screws and anchors
• Coin cell battery (inside the back of the thermostat)
• Quick Start Guide
• Thermostat ID Card
• Wire labels
• User Guide

Welcome
Congratulations on your purchase of a Honeywell Wi-Fi touchscreen programmable thermostat. When registered to Honeywell’s Total Connect Comfort Solutions, you can remotely monitor and control the heating and cooling system in your home or business—you can stay connected to your comfort system wherever you go. Honeywell’s Total Connect Comfort is the perfect solution if you travel frequently, own a vacation home, or a business, manage an Investment property, or if are simply looking for peace of mind.

• This thermostat works with common 24-volt systems such as forced air, hydronic, heat pump, oil, gas, and electric. It will not work with millivolt systems, such as a gas fireplace, or with 120/240 volt systems such as baseboard electric heat.
• This thermostat contains a Lithium battery which may contain Perchlorate material. Perchlorate Material—special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate
• MERCURY NOTICE: Do not place your old thermostat in the trash if it contains mercury in a sealed tube. Contact the Thermostat Recycling Corporation at www. thermostat-recycle.org or 1-800-238-8192 for information on how and where to properly and safely dispose of your old thermostat.
• NOTICE: To avoid possible compressor damage, do not run the air conditioner if the outside temperature drops below 50°F (10°C).

Need help?
Visit wifithermostat.com or call 1-855-733-5465 for assistance before returning the thermostat to the store

Features of your Wi-Fi thermostat

With your new thermostat, you can:

• Connect to the Internet to monitor and control your heating/cooling system
• View and change your heating/cooling system settings
• View and set temperature and schedules
• Receive alerts via email and get automatic upgrades
• Your new thermostat provides:
• Smart Response Technology
• Compressor protection
• Heat/cool auto changeover

Home screen quick reference
Once your Wi-Fi thermostat is installed, it will display on the home screen. Portions of this display will change depending on how you are viewing it. To change settings, simply press the appropriate area lightly with your finger

 

Unless you change the lighting function, the screen is always lit at low intensity. When you touch the screen, the screen brightens.

Preset energy-saving schedules
This thermostat is pre-set with energy-saving program settings for four time periods. Using the default settings can reduce your heating/cooling expenses if used as directed. Savings may vary depending on geographic region and usage.

 

To change the settings, see pages 39–42.

Setting up your thermostat
Setting up your Wi-Fi programmable touchscreen thermostat is easy. It is preprogrammed and ready to go as soon as it is installed and registered.

1. Install your thermostat.
2. Connect it to your home wireless network.
3. Register online for remote access.

Before you begin, you may want to watch a brief installation video. Use the QR Code® at the front of this guide, or go to wifithermostat.com/support

Installing your thermostat
You might need the following tools to install this thermostat:

• No. 2 Phillips screwdriver
• Small pocket screwdriver
• Pencil
• Level (optional)
• Drill and bits (3/16” for drywall,
• 7/32” for plaster) (optional)
• Hammer (optional)
• Electrical tape (optional)

Switch OFF power to your heating/cooling system.
Important! To protect your equipment, switch OFF the power to your heating/cooling system at the breaker box or the system switch

 

 

 

Remove the old thermostat faceplate and leave the wires connected. 2a Take a picture of the wire connections for later reference. 2b If no wire is connected to a terminal labeled C or no C
terminal exists on the old thermostat, view the Alternate Wiring videos at wifithermostat.com/videos If you have an older thermostat with a sealed mercury tube, turn to page 2 for proper disposal instructions.

 

Important! C wire is required and is the primary power source for your thermostat. Without a C wire, your thermostat will not power up.

Label wires
Do not label by wire color. Use the supplied sticky tags to label each wire as you disconnect it. Label wires according to the old thermostat terminal designations, not by wire color.
Note: If no tag matches a terminal designation, write the appropriate letter on a blank sticky tag. Remove the wallplate. Remove the old wallplate from the wall after all wires have been
labeled and disconnected.

 

Separate Wi-Fi thermostat and its wallplate. On your new thermostat, grasp the finger holds on the top and bottom of the wallplate with one hand and the thermostat (front) with the other hand. Pull pieces apart.

Mount wallplate for Wi-Fi thermostat. Mount your new wallplate using screws and anchors included with the thermostat. If necessary: Drill 3/16-in holes for drywall.
Drill 7/32-inch holes for plaster.
Note: You may be able to use your existing wall anchors. Hold the wallplate up to the existing anchors to check for alignment.

Installing your thermostat

Important! The Wi-Fi thermostat requires a C wire to operate. The C, or common, wire brings 24 VAC power to the thermostat. Much older mechanical or battery-operated
thermostats do not require a C wire. If you don’t have a C wire, try:

• Looking for an unused wire that is pushed into the wall. Connect that wire to C and check that it is connected to the 24 VAC common at your heating/cooling system.
  Check the video section at wifithermostat.com
• Note: Not all heating/cooling systems label the 24 VAC common C. Check your system manual or contact the manufacturer to find out which terminal is the 24 VAC common.
  View the Alternate Wiring videos at wifithermostat.com/videos
  Wiring
• For conventional heating/cooling systems (natural gas, oil or electric furnace, air conditioner), see page 14. See “Glossary” on page 68 for further definition. For a heat pump system, see page 15. See “Glossary” on page 68 for further

Wiring (conventional system)
7A Wire the Wi-Fi thermostat to your conventional system.

• Starting with the C Wire, match the sticky tag on the wire to the terminal labels. You must have a C wire. See page 13.
• Loosen the screw, insert wire on the inside edge of the terminal, then tighten the screw.
• Verify wire is firmly secured by gently pulling on the wire.
• Repeat steps a–c for all other wires.
• Push any excess wire back into the wall opening after all wires are installed.
• Continue to page 20. Labels don’t match? See the alternate wiring key on pages 16–17.

Wiring (heat pump system only)
7B Wire Wi-Fi thermostat to your heat pump.

• Starting with the C Wire, match the sticky tag on the wire to the terminal labels. You must have a C wire. See page 13.
• Loosen the screw, insert wire on the inside edge of the terminal, then tighten the screw.
• Verify wire is firmly secured by gently pulling on the wire.
• Repeat steps a–c for all other wires.
• Push any excess wire back into the wall opening after all wires are installed.
• Continue to page 20.
  Note: If the old thermostat has separate wires on AUX and E, place both wires into the E/AUX terminal. If the old thermostat has a wire on AUX with a jumper to E, place the wire on the E/AUX terminal. No jumper is required

Labels don’t match? See the alternate
wiring key on pages 18–19.

Alternate wiring (conventional system)
Use this if your wire labels don’t match the terminal labels.
Note: You must have a C wire or equivalent. See page 13.

Alternate wiring key (conventional system)

1. Remove the metal jumper connecting R and RC only if you must connect both
   R and RC.
2. If your old thermostat had both R and RH wires, remove the metal jumper.
3. Connect the R wire to the RC terminal, and the RH wire to the R terminal.
4. Do not use the K terminal. For future use.

Alternate wiring (heat pump system only)
Use this if your wire labels don’t match the terminal labels.
Note: You must have a C wire or equivalent. See page 13.

Alternate wiring key (heat pump system only)

1. Leave metal jumper between R and RC terminals in place.
2. If your old thermostat had both V and VR wires, check wifithermostat.com for help.
3. If your old thermostat had separate O and B wires, attach the B wire to the C terminal. If another wire is attached to the C terminal, check wifithermostat.com for help. Attach the O wire to the O/B terminal. Set System Function 0190 to 0 (see page 55).
4. If your old thermostat had an O wire and not a B wire, attach the O wire to the O/B terminal.
5. If your old thermostat had separate Y1, W1, and W2 wires, check wifithermostat.com for help.
6. This is the system monitor. If the monitor finds a problem, you will see a red light in the upper right corner of the thermostat (shines through the cover).
7. If the old thermostat has separate wires on AUX and E, place both wires into the E/AUX terminal. If the old thermostat has a wire on AUX with a jumper to E, place the wire on the E/AUX terminal. No jumper is
   required.
8. Do not use the K terminal. For future use.
9. Install battery. Insert the coin cell battery (included), observing the correct polarity.
   Note: A correctly inserted battery will extend about halfway out of the battery slot on the thermostat, allowing for easier removal. This battery maintains time and date during power outages. It does not power the thermostat (C wire required).
10. Install battery. Insert the coin cell battery (included), observing the correct polarity.
    Note: A correctly inserted battery will extend about halfway out of the battery slot on the thermostat, allowing for easier removal. This battery maintains time and date during power outages. It does not power the thermostat (C wire required).

Switch the heating/cooling system ON.
Important!

• 10a Verify that the C wire is connected at the thermostat and at the heating/cooling
  system.
• 10b Make sure the heating/cooling system door is firmly secured.
• 10c Switch power back ON for your heating/cooling system at the breaker box or its power switch.

Set date and time
Touch the or buttons to change the displayed time and date. Press and hold a button to quickly change a setting.
Note: This thermostat will automatically update for daylight saving time (if observed in your area) and all date/time information is stored. If the thermostat is connected to Wi-Fi and registered to Total Connect Comfort, the current time is updated on the internet

Determine your heating/cooling system type.
Important! The heating/cooling system type must be set so that your thermostat operates properly and does not damage your system. 12a If you have a traditional system (natural gas-forced air with A/C), your thermostat is set up by default to control this system. 12b If your system is:

• Conventional multistage heat and cool
• Any type of heat pump
• Hydronic
• Other

You MUST change the system type by setting system function 0170. See page 54 to match your thermostat to your system type.If you are not sure of your heating/cooling system type
or have other questions, go to wifithermostat.com

Congratulations! Your thermostat is operational.

• 13 Test your thermostat.
• 13a Press the SYSTEM button to change to
• heating or cooling and begin operation.
• 13b For remote access to your thermostat, continue to “Connecting to your Wi-Fi network” on page 26.

Heating/cooling system not turning on? Refer to page 67 or FAQ at wifithermostat.com/support

Connecting to your Wi-Fi network

To complete this process, you must have a wireless device connected to your home wireless network. Any of these device types will work:

• Tablet (recommended)
• Laptop (recommended)
• Smartphone

If you get stuck… at any point in this procedure, restart the thermostat by removing the thermostat from the wallplate, wait for 5 seconds, and snap it back onto the wall plate. Return to Step 1 in this procedure, which starts on page 27. View the Wi-Fi Enrollment video at wifithermostat.com/videos

Connecting to your Wi-Fi network

1. Connect to your thermostat. 1a Make sure the thermostat message center displays Wi-Fi SETUP.
2. 1b On the wireless device (laptop, tablet, smartphone),
3. view the list of available Wi-Fi networks
4. 1c Connect to the network called
5. NewThermostat_123456 (the number will vary).
   Note: If you are asked to specify a home, public, or office network, select Home Network.

Join your home network. 2a Open your web browser to access the Thermostat Wi-Fi Setup page. The browser should automatically direct you to the correct page; if it does not, go to http://192.168.1.1

• Find the name of your home network on this page and select it.
  Note: Some routers have enhanced features such as guest networks; use your home network
• Complete the instructions for joining your Wi-Fi network and click on the Connect button. (Depending on your network setup, you may see an instruction such as Enter Password for your home network.)
  Note: If you did not correctly connect to the thermostat, you may see your home router page. If so, return to Step 1.

Connecting to your Wi-Fi network
Note: If your Wi-Fi network does not appear in the list on the Thermostat Wi-Fi Setup page:

• Try performing a network rescan by pressing the Rescan button. This is helpful in areas with a lot of networks.
• If you are connecting to a hidden network, then enter the network SSID in the textbox, select the encryption type from the drop-down menu, and click on the Add button. This manually adds the network to the top of the list. Click on the new network in the list and enter the password if necessary. Click on Connect to join the network.
• Make sure your thermostat is connected.
• The message center on your thermostat will now display CONNECTING… for up to 30 seconds.
• Look at the thermostat display. Verify that the message center displays one of the following:

CONNECTION SUCCESSFULLY JOINED: [WI-FI NETWORK NAME] YOU ARE ALMOST DONE REGISTERING AT TOTAL CONNECT
If you see one of these messages, continue to page 31.
Note: If you see CONNECTION FAILURE or Wi-Fi SETUP in the message center, confirm you correctly entered your home network password in step 2c. If correct, refer to the FAQ at wifithermostat.com/support

Registering your thermostat online
To view and set your Wi-Fi thermostat remotely, you must have a Total Connect Comfort account. Use the following steps. Open the Total Connect Comfort website. Go to mytotalconnectcomfort.com View the Wi-Fi Thermostat Registration video at wifithermostat.com/videos

Log in or create an account. If you have an account, click Login – or – click Create An Account

• Follow the instructions on the screen.
• Check your email for an activation message from My Total Connect Comfort. This may take several minutes.
  Note: If you do not receive a response, check your junk mailbox or use an alternate e-mail address.
• Follow the activation instructions in the email.
• Log in.
• Register your Wi-Fi thermostat. After you are logged in to your Total Connect Comfort account, register your thermostat.  Follow the instructions on the screen. After adding your thermostat location, you must enter the thermostat’s unique identifiers:
  • MAC ID
  • MAC CRC
    Note: These IDs are listed on the
• A thermostat ID Card is included in the thermostat package. The IDs are not case sensitive

Registering your thermostat online

• When the thermostat is successfully registered, the Total Connect Comfort registration screen will display a SUCCESS message. In the thermostat message center you will see:
  CONGRATULATIONS SETUP IS COMPLETE!

Registering your thermostat online

Your thermostat will display wireless signal strength.  You can now control your thermostat from anywhere through your laptop, tablet, or smartphone. Total Connect Comfort free app is
available for Apple® iPhone®, iPad® and iPod touch® devices at iTunes® or at Google Play® for all Android™ devices.

Setting the clock

1. Press CLOCK to display setting arrows.
2. Press s or t to adjust the time. (You can advance the time more quickly by holding the s or t buttons.)
3. Press DONE to save and exit (or press CANCEL to exit without changing the time).
   Note: This thermostat will automatically update for daylight saving time (if observed in your area) and all date/time information is stored. If the thermostat is connected to Wi-Fi and registered to Total Connect Comfort, the current time is updated from the internet.
   Note: To change the current weekday format, see “Schedule Options” on page 53

Setting the fan

1. Press FAN to select fan operation.
2. Press FAN again to select ON or AUTO (toggle to re-select). The selected option blinks.
3. Press DONE to save the setting. Your selection appears under FAN.
   ON: The fan is always on.
   AUTO: The fan runs only when the heating or cooling system is on.

Selecting system mode

1. Press SYSTEM to display options.
2. Press SYSTEM again to select an option. You may need to press two or three times to make a selection—the selected option blinks.
3. Press DONE to save the setting.
   Possible system modes:
   HEAT: Controls only the heating system.
   COOL: Controls only the cooling system.
   OFF: Heating/cooling systems are off.
   AUTO: Selects heating or cooling depending on the indoor temperature.
   EM HEAT (heat pumps with aux. heat): Controls auxiliary/emergency heat. The compressor is locked out.

Note: The AUTO and EM HEAT system settings may not appear, depending on how your thermostat was installed.

Adjusting program schedules

 

1. Press SCHED, then EDIT. The screen displays day buttons at the top.
2. Press the day buttons (MON–SUN) to select days.
3. Press or to set Wake time for the selected day(s).
4. Press or to set the Heat and Cool temperature for this time period.
5. Press another period (LEAVE, RETURN, SLEEP) and set time and temperatures for each.
6. Press DONE to save and exit (or press CANCEL to exit without saving changes).
   Note: You can press CANCEL PERIOD to eliminate any unwanted time period.

Overriding schedules temporarily

1. On the home screen, press s or t to immediately adjust the temperature.
2. Adjust the time to when you want the hold to end (the default is the end of the current period).

The new setting will be maintained until the time shown under Hold Until. When the timer expires, the schedule will resume, and the temperature will return to the setting for the current time period. To cancel the temporary setting at any time, press CANCEL (or SCHED). The program schedule will resume.

Overriding schedules permanently

1. Press HOLD to permanently adjust the temperature. This will turn off the programschedule.
2. Whatever temperature you set will be maintained 24 hours a day until you manually change it or press CANCEL (or SCHED) to cancel “Hold” and resum  the program schedule.

Setting vacation hold

Use this function to suspend the program schedule while you are away for an extended period.

1. Press s or t to set the temperature.
2. Press s or t to set the time of day you wantthe schedule to resume on the day you return.
3. Press HOLD twice. Hold Until appears.
4. Press s or t to select the number of days.

The selected temperature will be maintained 24 hours a day for the number of days you select. After the selected number of days has elapsed, the previously programmed schedule will resume at the time you set.
Note: You can press CANCEL (or SCHED) to resume normal schedule.

 

Setting filter reminder intervals

If activated during installation, the filter reminder alerts you with a message above the time when it is time to replace your filter. Press RESET after changing the filter, to restart
the timer. To change the reminder interval:

1. Press MORE, then EDIT.
2. Press s or t to select the desired interval (in days), then press DONE.
3. Press RESET.
4. Press DONE to save and exit.
   Note: System setting function 0500 governs the filter interval. See “Filter Change Reminder” on page 57

Cleaning the screen

 

1. Press SCREEN to lock the screen for cleaning. The screen will remain locked for 30 seconds so you can clean the screen without changing any settings.
2. After 30 seconds, press DONE to resume normal operation, or press SCREEN again if you require more time for cleaning. Note: Do not spray any liquid directly on the thermostat. Spray liquid onto a cloth, then use the damp cloth to clean the screen. Use water or household glass cleaner. Avoid abrasive cleansers.

Unregistering thermostat
If you remove the thermostat from your Total Connect Comfort website account (for example, you’re moving and leaving the thermostat behind), the message center will scroll UNREGISTERED FROM TOTAL CONNECT for 3 minutes. After that, it will alternate displaying REGISTER AT TOTAL CONNECT, the MAC ID and the MAC CRC.

 

Disconnecting Wi-Fi
Replacing your router
If you disconnect the thermostat from your Wi-Fi network:

1. Enter system setup (see page 51).
2. Change setting 900 to 0 (see page 58).

The Message Center will display Wi-Fi DISCONNECTED for 1 minute. After that it will display Wi-Fi SETUP. Re-connect to a Wi-Fi network by following the steps on page 26.

Turning Wi-Fi off
If you do not plan to control the thermostat remotely, you can remove the Wi-Fi SETUP message from the screen:

1. Enter system setup (see page 51).
2. Change setting 890 to 0 (see page 58). Wi-Fi SETUP will be removed from the Screen. If you want to connect to the Wi-Fi network later, change setting 890 back to 1.

Software updates

Honeywell periodically issues updates to the software for this thermostat. The updates occur automatically through your Wi-Fi connection. All your settings are saved, so you will not need to make any changes after the update occurs. While the update is taking place, your thermostat screen goes blank and the message center shows UPDATING and the percentage of the update that has occurred. When the update is complete, your home screen will appear as usual.
Note: If you are not connected to Wi-Fi or registered at Total Connect Comfort, you will not get automatic updates.

Smart Response Technology

This feature allows the thermostat to “learn” how long the heating/cooling system takes to reach programmed temperature settings, so the temperature is reached at the time you set.
For example: Set the Wake time to 6:00 am, and the temperature to 70°. The heat will come on before 6:00 am, so the temperature is 70° by 6:00 am.
Note: System setting function 0530 controls Smart Response Technology. See “Smart Response Technology” on page 57.

Compressor protection
This feature forces the compressor to wait a few minutes before restarting, to prevent equipment damage.

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.
Note: System setting function 0300 controls Auto changeover. See “Manual/Auto Changeover” on page 56.

Setting functions and options

You can change options for a number of system functions. Available functions depend on the type of system you have. The functions, designated with four-digit numbers, along with
available options are described on pages 52–58.This thermostat is pre-set for a single-stage heating/cooling system. Setting function 0170 for a heat pump will adjust the default settings.

1. Press SYSTEM. You’ll see several blank buttons on the bottom of the display.
2. Press and hold the center blank button until the screen changes (approximately 5 seconds).
3. Cycle through the functions, press st next to the four digit number on the left.
4. As needed, change options for any function by pressing st next to the number on the right.
5. When you have made all changes, press DONE to save and exit

System setup

How do I set my thermostat name? (See page 51 for instructions.)

0112	Device Name	52 = Thermostat 1  Basement 2  Bathroom 3  Bathroom 1 4  Bathroom 2 5  Bathroom 3 6  Bedroom 7  Bedroom 1 8  Bedroom 2 9  Bedroom 3 10  Bedroom 4 11  Boat House 12  Bonus Room 13  Computer Room 14  Den 15  Dining Room	16  Exercise Room 17  Family Room 18  Fireplace 19  Foyer 20  Game Room 21  Garage 22  Great Room 23  Guest Room 24  Gym 25  Kid’s Room 26  Kitchen 27  Kitchen 1 28  Kitchen 2 29  Laundry Room	30  Library 31  Living Room 32  Lower Level 33  Master Bath 34  Master Bed 35  Media Room 36  Music Room 37  Nursery 38  Office 39  Office 1 40  Office 2 41  Pantry 42  Play Room 43  Pool Room	44  Porch 45  Rec Room 46  Sewing Room 47  Spa 48  Storage Room 49  Studio 50  Sun Room 51  Theater 52  Thermostat 53  Upper Level 54  Utility Room 55 Walk In Closet 56 Wine Cellar 57 Workshop
	This name will identify the thermostat when you view it remotely.
	If you register multiple thermostats, give each one a different name.

0120	Year Setting	20 = Year 20xx
	(first two digits)	21 = Year 21xx
0130	Year Setting (last two digits)	01–99 (i.e., 2001–2099)
0140	Month Setting	01–12 (i.e., January–December)
0150	Date Setting	01–31
0160	Schedule Options	4    Program schedule is on (7-day programmable). 0    Program schedule is off. Thermostat can not be programmed.
0165	Restore Schedule Defaults	0       Continue using programmed schedule. 1       Restore thermostat program to energy saving settings

Note: If thermostat is connected to Wi-Fi and registered to Total Connect Comfort, the current time and date is updated from the internet. If you live in an area that observes daylight saving time, the time is also automatically updated.

How do I set my heating/cooling system type? (See page 51 for instructions.)

0180 Heating Fan Control	0   1	Gas or oil heat: Use this setting if you have a gas or oil heating system (system controls fan operation). Electric heat: Use this setting if you have an electric heating system (thermostat controls fan operation).
0190 Heat Pump	0	Cooling changeover valve: Use this setting if you connected a wire
		labeled “O” to the O/B terminal.
Changeover Valve
	1	Heating changeover valve: Use this setting if you connected a wire
(for heat pumps
		labeled “B” to the O/B terminal.
only)
0240 Heating Cycle Rate	5 9 3   1	Gas or oil furnace: Standard gas/oil furnace (less than 90% efficiency). Electric furnace: Electric heating systems. Hot water or high-efficiency furnace: Hot water system or gas furnace (more than 90% efficiency). Gas/oil steam or gravity system: Steam or gravity heat systems.
0250 Heating Cycle Rate Stage 2

0280 Backlight	0	Backlight off, then on for approximately 8 seconds after keypress.
	1	Backlight always on low intensity, full bright after keypress.
0300 Manual/Auto Changeover	0 1	Manual changeover (Heat/Cool/Off). Automatic changeover (Heat/Cool/Auto/Off). Automatically turns on Heat or Cool based on room temperature. Note: System maintains minimum 3°F difference between heat and cool settings.
See page 50 for more information.
0320 Temperature	0	Fahrenheit
	1	Celsius
Format (°F/°C)
0330 Automatic Daylight Saving Time	0 1	Off On
Adjustment

0500 Filter Change Reminder The reminder appears after selected number of days run time not actual time.	0       Off (no reminder) 1       Reminder after 10-day run time (about 1 calendar month) 2       Reminder after 30-day run time (about 3 calendar months) 3       Reminder after 60-day run time (about 6 calendar months) 4       Reminder after 90-day run time (about 9 calendar months) 5       Reminder after 120-day run time (about 1 calendar year) 6       Reminder after 180-day run time (about 18 calendar months) 7       Reminder after 270-day run time (about 2 calendar years) 8       Reminder after 365-day run time (about 3 calendar years)
0530 Smart Response Technology See page 48 for more information.	1    On 0    Off
0640 Clock Format	12 12-hour clock (i.e., “3:30 pm”) 24 24-hour clock (i.e., “15:30”)

0710	Restore Original Settings	0 1	No Disconnects thermostat from Wi-Fi and restores original settings (erases customizations).
0890	Wi-Fi On/Off	1 0	Wi-Fi is on and can be connected to a Wi-Fi network. Wi-Fi is off. Thermostat cannot be connected to a Wi-Fi network. If you are not connecting the thermostat to a Wi-Fi network this will remove the text “Wi-Fi Setup” from the messaging center.
0900	Wi-Fi Connection	1	Connected to Wi-Fi network. This is set automatically when the thermostat is connected to the Wi-Fi network.
		0	Set to 0 to disconnect from the Wi-Fi network.

Frequently asked questions

Q:Will my thermostat still work if I lose my Wi-Fi connection?
A: Yes, the thermostat will operate your heating and/or cooling system with or without Wi-Fi.

Q: How do I find the password to my router?
A: Contact the manufacturer of the router or check the router documentation.

Q:Why am I not seeing my Wi-Fi setup page?
A: You are probably connected only to your router, not to your thermostat. Try connecting to the thermostat again.

Q:Why isn’t my thermostat connecting to my Wi-Fi router even though it is very close to the thermostat?
A: Verify that the password entered for the Wi-Fi router is correct.

Q:Where can I find my MAC ID and MAC CRC codes?
A: The MAC ID and MAC CRC will show in the message center of the thermostat. The numbers are
also included on a card packed with the thermostat or on the back of the thermostat (visible when
removed from wallplate). Each thermostat has a unique MAC ID and MAC CRC.

Q: My thermostat is unable to register to the Total Connect Comfort website.
A: Verify that the thermostat is correctly enrolled on your homeWi-Fi network. The message center will display “CONNECTION SUCCESSFUL” or “REGISTER AT TOTAL CONNECT.” You might also see the Wi-Fi Signal strength icon. Verify that the Wi-Fi router has a good internet connection. On your computer, verify that you can open the site at mytotalconnectcomfort.com If you cannot open the site, switch off the internet modem for a few seconds, then power it back on.

Q: I registered on the Total Connect Comfort website but was unable to login using my new account.
A: Check your email and ensure that you received an activation email. Follow the instructions to activate your account and then login to the website.

Q: I have signed up on Total Connect Comfort website and have not received a confirmation email.
A: Check for the email in your Junk or Deleted folder.

Q: Is there a way to extend the signal strength?
A: Most standard routers can be set up to be a repeater. You can also purchase and install a Wi-Fi repeater. For more FAQs, see wifithermostat.com

Message center messages

The Message Center at the top of the screen communicates Wi-Fi connection and registration status. It also displays the MAC ID and MAC CRC for registering the thermostat at mytotalconnectcomfort.com

 

Troubleshooting

If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily

Glossary

C wire
The “C” or common wire brings 24 VAC power to the thermostat from the heating/cooling system. Some older mechanical or battery operated thermostats may not have this wire connection. It is necessary for establishing a Wi-Fi connection to your home network.

Heat Pump heating/cooling system
Heat pumps are used to heat and cool a home. If your old thermostat has a setting for auxiliary or emergency heat, you likely have a heat pump.

Conventional heating/cooling system
Non–heat pump type systems; these include air handlers, furnaces or boilers that run on natural gas, oil or electricity. They may or may not include an air conditioner.

Jumper
A small piece of wire that connects two terminals together.

MAC ID, MAC CRC
Alphanumeric codes that uniquely identify your thermostat.

QR Code®
Quick response code. A two-dimensional,machine-readable image. Your wireless device can read the black and white pattern in the square and link its browser directly to a web site. QR Code is a registered trademark of DENSO WAVE INCORPORATED

Regulatory information

FCC Compliance Statement (Part 15.19) (USA only) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

FCC Warning (Part 15.21) (USA only)
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment

FCC Interference Statement (Part 15.105 (b)) (USA only)
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Regulatory information Thermostats
To comply with FCC and Industry Canada RF exposure limits for general population/ uncontrolled exposure, the antenna(s) used for these transmitters must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Section 7.1.2 of RSS-GEN Under Industry Canada regulations, this radio transmitter may only operate using an antenna of type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication.

Section 7.1.3 of RSS-GEN
Operation is subject to the following two conditions:

1. this device may not cause interference, and
2. this device must accept any interference, including interference that may cause undesired operation of the device

1-year limited 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 determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option).
If the product is defective,

1. return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or call Honeywell Customer Care at 1-855-733-5465.
2. 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 you. 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. Honeywell’s 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.

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 1-855-733-546

Automation and Control Systems
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422 Honeywell Ltd
705 Montrichard Avenue
Saint-Jean-sur-Richelieu, Québec J2X 5K8 wifithermostat.com
® U.S. Registered Trademark.
Apple, iPhone, iPad, iPod touch, and iTunes are trademarks of Apple Inc.
All other trademarks are the property of their respective owners.
© 2013 Honeywell International Inc.
69-2715EF—07 M.S. Rev. 11-13 Printed in the U.S.A.

Reference

Download manual:

Honeywell Home RTH8500 Touchscreen Programmable Thermostat User Guide

OTHER MANUALS:

Honeywell Home RTH8500 Touchscreen Programmable Thermostat Quick Installation Guide

Honeywell Home RTH8500 Touchscreen Programmable Thermostat Operating Manual

Honeywell Home RTH8500 Touchscreen Programmable Thermostat User Guide