User Guide Wi-Fi Color Touchscreen Programmable Thermostat RTH9580 Wi-Fi
In the box you will find • Thermostat • Thermostat ID Card • Wallplate • Wire labels • Screws and anchors • User Guide • Quick Start Guide 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.
Welcome Congratulations on your purchase of a Honeywell Wi-Fi color 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.
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. 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.
Table of contents About your new thermostat Setting holiday schedule–business..... 48 Setting holiday override–business....... 49 Initiating occupancy mode–business... 50 Customizing screen color.................... 51 Setting preferences............................. 52 Cleaning the thermostat screen.......... 53 Adjusting security settings................... 54 Software updates................................ 55 Unregistering your thermostat............. 56 Smart Response Technology..............
Quick reference: home use HOME. Touch to display Home screen. FAN. Select fan mode. SYSTEM. Select system mode (heat/cool). MENU. Touch to display options. Start here to set a program schedule. Current schedule. Change temperature setting and select temporary or permanent hold. Indoor conditions. Shows indoor temperature and humidity. Current date and time. Current status. Shows system mode (heat/ cool). Outdoor conditions. Outdoor temperature and humidity appear after registration.
Quick reference: business use HOME. Touch to display Home screen. FAN. Select fan mode. SYSTEM. Select system mode (heat/cool). MENU. Touch to display options. Start here to set a program schedule. Thermostat location. Quickly identify which thermostat is in control of a specific area. Current schedule. Touch an arrow to change temperature setting and set a temporary hold. Override. Touch to temporarily override the program schedule. Indoor conditions. Shows indoor temperature and humidity.
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.
Installing your thermostat You might need the following tools to install this thermostat: • • • • No. 2 Phillips screwdriver Pen Pencil Level (optional) • Drill and bits (3/16” for drywall, 7/32” for plaster) (optional) • Hammer (optional) • Electrical tape (optional) 1 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.
Installing your thermostat Note: You will need a picture of your wire connections to wire the new thermostat. 2 Remove old thermostat faceplate and leave 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 C Terminal designation Important! C wire is required and is the power source for your thermostat.
Installing your thermostat 3 Label the wires. 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. Sticky tag Blank tags Note: If no tag matches a terminal designation, write the appropriate letter on a blank sticky tag. 4 Remove wallplate. Remove the old wallplate from the wall after all wires have been labeled and disconnected.
Installing your thermostat 5 Mount wallplate for Wi-Fi thermostat. Mount your new wallplate using screws and anchors included with the thermostat. LEVEL HERE WO/B C K Rc R If necessary: Y G W2Aux/E Y2 L Drill 3/16-in holes for drywall. Drill 7/32-in 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. Many 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.
Installing your thermostat Note: The wiring for your application might be different than the wiring shown below. Wiring (Conventional System) 6A Wire the Wi-Fi thermostat to your conventional system. Straighten wire and gently slide into terminal hole until it clicks into place. (If you need to remove a wire, use a pen tip to press the terminal release and then pull wire out.) Note: Refer to the wiring picture you took in Step 2.
Installing your thermostat Wiring (Conventional System continued) Important! Check the box for each wire you connect. You will need this information in Step 9. c In the image on the right, check the box next to each connection. You will use this checklist in Step 9. C K Rc d Verify wire is firmly secured by gently pulling on wire. e Repeat steps a–d for all other wires. f Push any excess wire back into the wall opening after all wires are installed. g Continue to page 20.
Installing your thermostat Note: Refer to the wiring picture you took in Step 2. Tip: To make it easier to slide the wire into place, use a pen tip to hold down the terminal release. 69-2809EF—03 14 O Y C K Rc R AUX G You must have a C wire. See page 11. b Slide wire gently into terminal hole until it clicks into place. (If you need to remove a wire, use a pen tip to press the terminal release and then pull the wire out.) Terminal release C 6B Wire Wi-Fi thermostat to your heat pump.
Installing your thermostat Wiring (Heat Pump System continued) Important! Check the box for each wire you connect. You will need this information in Step 9. c In the image on the right, check the box next to each connection. You will use this checklist in Step 9. C K Rc d Verify wire is firmly secured by gently pulling on wire. e Repeat steps a–d for all other wires. Note: If old thermostat has separate wires on AUX and E, use a wire nut to attach both wires to a separate wire.
Installing your thermostat 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 11. C 1 K Rc 2 R C C1 X B W W1 Y G G Rc R R RH 4 WO/B Y W2 V W2Aux/E Y2 Y2 L 2 MCR34541 See key to 69-2809EF—03 16 1 – 2 on page 17.
Installing your thermostat Alternate wiring key (Conventional System) 1 Do not use K terminal. For future use. 2 • If you have both an R and Rc wire, unplug the jumper loop by pulling on the wire loop. • If your old thermostat had both R and RH wires, connect the R wire to the Rc terminal, the RH wire to the R terminal, and unplug the jumper loop.
Installing your thermostat Alternate wiring (Heat Pump System) Use this if your wire labels don’t match the terminal labels. Note: You must have a C wire or equivalent. See page 11. C 1 K 2 Rc 3 R O B C B X G Rc R G AUX R V W- 4 O/B Y5 Y VR X W X2 W1 W2- 6 Aux/E W2 Y2 Y2 L 7 L 2 F MCR34542 See key to 69-2809EF—03 18 1 – 7 on page 19.
Installing your thermostat Alternate wiring key (Heat Pump System) 1 Do not use K terminal. For future use. 2 Leave jumper loop in place. 3 If your old thermostat had both V and VR wires, check wifithermostat.com for help. 4 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. On the Type of Changeover Valve screen, select Cooling Changeover Valve.
Installing your thermostat Wallplate 7 Attach thermostat to wallplate. Align the thermostat with the wallplate and then snap into place.
Installing your thermostat 8 Switch heating/cooling system ON. Important! 8a Verify that the C wire is connected at the thermostat and at the heating/cooling system. or 8b Make sure the heating/cooling system door is firmly secured. 8c Switch power back ON for your heating/cooling system at the breaker box or its power switch.
Installing your thermostat Before connecting to your Wi-Fi network, you need to set initial thermostat options to define your heating/cooling system: • Language • Home or business You can customize other options later. Next 9 Follow prompts on the screen to select appropriate options. 9a Touch the language you want the thermostat to display, then touch Next. 9b Select Home or Business installation, then touch Next.
Installing your thermostat 9c Touch Next, or name the thermostat location—touch THERMOSTAT and follow the rest of the instructions. 9d Select what your thermostat will control and touch Next. Note: Touch the orange Help button on any screen for more information.
Installing your thermostat 9e Select your system type and touch Next. The system type determines other selections for completing initial setup. Use the checklist from Step 6d when making selections. 9f Touch Next after making selections on each screen. Next 9g Touch Done on the last screen. The thermostat displays an option to connect to your Wi-Fi network. Note: Touch the orange Help button on any screen for more information.
Connecting to your Wi-Fi network After touching Done on the final screen of the initial set up (page 24), the thermostat displays an option to connect to your Wi-Fi network. 1 Connect the Wi-Fi network. Yes Touch Yes to connect the thermostat to your Wi-Fi network. The screen displays the message “Searching for wireless networks. Please wait...” after which it displays a list of all Wi-Fi networks it can find. Note: If you cannot complete this step now, touch I’ll do it later.
Connecting to your Wi-Fi network 2b Using the keyboard, touch the characters that spell out your home network password. 2c Touch Done. The thermostat displays “Connecting to your network. Please wait...” then shows a “Connection Successful” screen. Done 2d Touch Next to display the registration information screen. 2e Note your Thermostat MAC and Thermostat CRC. You need these numbers to complete online registration.
Connecting to your Wi-Fi network To register your thermostat, follow the instructions beginning on page 30. Note: The Register Online screen remains active until you complete registration and/or touch Done. Note: If you touch Done before you register online, your home screen displays an orange alert button telling you to register. Touching that button displays registration information and an option to snooze the task.
Disconnecting your Wi-Fi network 1 Touch MENU. MENU 2 Select Wi-Fi Setup. Wi-Fi Setup 3 Touch Disconnect from Network. The thermostat will display a question to confirm your selection. 4 Touch Yes to confirm that you want to disconnect from the network. The thermostat will display the Wi-Fi Setup screen. 5 Touch OK to display the menu.
Reconnecting your Wi-Fi network 1 Touch MENU. MENU 2 Select Wi-Fi Setup. 3 Touch the name of the network you want to use. The thermostat may display a password page. Wi-Fi Setup 4 To enter a password, touch characters to spell out your home network password, then touch Done. 5 The thermostat displays “Connecting to your network. Please wait...” then a “Connection Successful” screen. 6 Touch Next. • If your thermostat is registered, you will see your signal strength and other status information.
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. 1 Open the Total Connect Comfort web site. Go to mytotalconnectcomfort.com M31570 View the Wi-Fi Thermostat Registration video at wifithermostat.
Registering your thermostat online 2 Login or create an account. If you have an account, click Login – or – click Create An Account 2a Follow the instructions on the screen. 2b 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. 2c Follow activation instructions in the email. 2d Log in.
Registering your thermostat online 3 Register your Wi-Fi thermostat. Thermostat ID Card After you are logged in to your Total Connect Comfort account, register your thermostat. Use the MAC ID and CRC ID to register this product at mytotalconnectcomfort.com Carte d’identification de thermostat 3a Follow the instructions on the screen.
Registering your thermostat online When the thermostat is successfully registered, the Total Connect Comfort registration screen will display a SUCCESS message. 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 time/date 1 Touch the current time. The screen displays Set Time/Set Date. Fri, Jun 14, 2013 2 Touch Set Time or Set Date. 6:30 pm 3 Touch p or q until the proper time/ date is displayed. 4 Touch Done to save or Cancel to ignore changes. Note: This thermostat will automatically update for daylight saving time (if observed in your area) and all date/time information is stored.
Setting the fan 1 Touch FAN to display fan settings. FAN 2 Touch On, Automatic, Circulate, or Follow Schedule. Done 3 Touch Done to save and exit. On: Fan is always on. Automatic: Fan runs only when the heating or cooling system is on. Circulate: Fan runs randomly about 35% of the time (home use only). Follow Schedule: Fan controlled by program (see pages 37-42). Note: Touch Auto or On to temporarily override the programmed fan schedule.
Setting system mode 1 Touch SYSTEM to display system settings. 2 Touch desired option: Heat: Thermostat controls only the heating system. Cool: Thermostat controls only the cooling system. Off: Heating/cooling systems are off. Automatic: Thermostat selects heating or cooling as needed depending on the indoor temperature. Emergency Heat (heat pumps with aux. heat): Controls auxiliary/ emergency heat. Compressor is locked out. 3 Touch Done to save and exit.
Preset energy-saving schedules This thermostat uses default Energy Saver settings that can reduce your heating/ cooling expenses. To customize settings, see next page.
Adjusting program schedules 1 Touch MENU. MENU 2 Select Create/Edit Schedule. • Touch View/Edit to view the full schedule and make a quick adjustment. Create / Edit Schedule • Touch Guide Me to create a schedule by answering simple questions. • Touch I’ll do it myself to manually create a program schedule. See page 39. Note: To reduce costs, use the pre-set Energy Saver settings described on page 37.
Adjusting program schedules If you selected I’ll do it myself on the Create/ Edit Schedule screen (page 38), follow these steps: 1 Select the days to schedule, touch Next. 2 Touch Wake to set your Wake time for selected days.
Adjusting program schedules 3 Touch p or q to set Heat and Cool temperatures for the Wake period, then touch Done. 4 Touch other time periods (Leave, Return, Sleep) to set time and temperatures for each. 5 Touch Done to save and exit. Note: Touch Delete Period to eliminate any unwanted time period. Note: Touch Fan Settings to customize fan settings for any time period.
Overriding schedules: home use 1 Touch p or q to adjust the temperature (right side of screen) and the Hold Until time (left side). The schedule will resume when the Hold Until time expires. Switch To Permanent Hold 2 Touch Switch to Permanent Hold to keep the same temperature until you change it or resume the program schedule. 3 Touch Cancel Hold at any time to resume the program schedule.
Overriding schedules: business use Touch p or q to adjust the temperature. It will be maintained until the hold time you set. • To change the hold time, touch the Hold Until arrow buttons. This time can be adjusted up to the maximum time set on the Override Duration screen in Advanced Preferences (page 61). • Touch Override to use a pre-set occupied temperature if a person uses the room during an unoccupied period.
Viewing equipment status 1 Touch MENU. MENU 2 Select Equipment Status. 3 Touch p or q to view the status of all the equipment your thermostat is controlling.
Setting vacation hold: home use This feature helps you save energy while you are away, and restores comfortable settings just before you return home. MENU Vaca�on Mode 1 Touch MENU. 2 Select Vacation Mode. 3 Touch p or q to select the date you leave, then touch Next for further scheduling details, including times of day, temperature settings, return date, and return settings. 4 Review your selections on the last display, and touch Done to save your settings. Touch Back, then Cancel to ignore the changes.
Setting holiday/event schedules: business use This feature helps you conserve energy when the workplace is unoccupied for special events and holidays. MENU Holiday / Event Scheduler 1 Touch MENU. 2 Select Holiday/Event Scheduler. 3 Select the item you want to schedule. Custom events • Custom Events lets you set up other days for special schedules. • US and Canadian Holiday options let you select from a list of holidays commonly observed in each country. 4 Make selections as prompted on each screen.
Setting custom events: business use This feature lets you customize temperature settings to be maintained during a specific event. You can set up an event for a specific date or day in a month. The thermostat resumes normal scheduling after the event. Custom events 1 Select Custom events from the Holiday/ Event Scheduler menu. 2 Select Create a new event.
Setting custom events: business use 3 Select Specific Date or Month/Weekday. • For Specific Date, you are prompted to select the start date, settings, end date, and frequency for the event. • For Month/Weekday, you are prompted to select the month, day of the week, week of the month, settings, length of event, and frequency of the event. Next 4 Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes.
Setting holiday schedule: business use This feature lets you customize temperature settings to be maintained on specified national holidays. The thermostat resumes normal scheduling between selected holidays. 1 Select US Holidays or Canadian Holidays from the Holiday/Event Scheduler menu. 2 Select Add/Edit Holidays. A list of national holidays is displayed. 3 Touch the check box next to each holiday for which you want to maintain specific settings, (Touch p or q to scroll through the holiday list.
Setting holiday override: business use This feature lets you customize temperature settings to be maintained from now until a specified date. The thermostat resumes normal scheduling on the date you select. MENU Holiday Mode 1 Touch MENU. 2 Select Holiday Mode to display temperatures while you are away on holiday. 3 Touch p or q to select the Heat and Cool temperatures, then touch Next to select return date. 4 Review the settings and touch Done to save them. Touch Back, then Cancel to ignore the changes.
Initiating occupancy mode: business use This feature keeps temperature at an energy-saving level until you touch Press to start occupancy. When you arrive, touch the button to maintain a comfortable temperature while the room is occupied. Touch the p or q buttons to set the temperature or the Hold Until time. The temperature is maintained until the time you set. Temperature returns to an energysaving level after the timer expires, or the “Occupied” period ends.
Customizing screen color You can customize your thermostat display to match your décor. MENU 1 Touch Menu. Color Themes 2 Touch Color Themes. 3 Select the name of a color to use a predefined background, or select Custom to define you own background color and text. • If you select a color name, the screen shows an example on the left. Touch Done to accept that selection. Done • If you touch Custom, the screen gives you instructions.
Setting preferences Preference menu options let you select how the thermostat displays information or responds to certain situations. MENU Preferences 1 Touch MENU and select Preferences. 2 Select an option and follow prompts: • Reminders • Utility Schedule Options • Backlight • Smart Response Technology • Advanced Preferences • Restore Default Schedule 3 Touch Done to save your settings. Touch Cancel to ignore changes.
Cleaning the thermostat screen When you select the Clean Screen option, the screen is locked so you don’t accidentally change settings while you clean. MENU Clean Screen 1 Touch MENU. 2 Select Clean Screen. A prompt asks if you want to clean the screen for 30 seconds. 3 Touch Yes. A countdown timer displays elapsed time until the screen is reactivated. Yes Note: Do NOT spray any liquid directly on the thermostat. Spray liquids onto a cloth, then use the damp cloth to clean the screen.
Adjusting security settings You can adjust security options to prevent unauthorized changes to system settings. MENU 1 Touch MENU and select Security Settings. 2 Select Change Lock Mode. 3 Select an option and follow prompts: Unlocked: Full access allowed. Partially locked: Only temperature can be changed. Fully locked: No access allowed.
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. Updates occur in the early morning. After your thermostat receives the software, it reboots, briefly displaying the Honeywell logo. The screen then shows “Updating software…” with a green progress bar.
Unregistering your thermostat If you remove the thermostat from your Total Connect Comfort website account (for example, you’re moving and leaving the thermostat behind), follow these steps: 1 On mytotalconnectcomfort.com log into your account. 2 Under My Account, select Edit My Profile. 3 Click the Delete My Account button. Your thermostat will display an orange button that says Register Online.
Smart Response Technology This feature (home use only) 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: Select Smart Response Technology in the Preferences menu (page 52).
Pre-occupancy purge This business use feature turns on the fan 1 to 3 hours before each “occupied” time period, to provide a comfortable work environment when you arrive.
Compressor protection The thermostat keeps the compressor off for a few minutes before restarting, to prevent equipment damage. During this “off” time, the message “waiting for equipment” 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 Automatic, 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: Select Auto Changeover on the Heating and Cooling System Changeover screen under Advanced Preferences.
Setting advanced preferences You can change options for a number of system functions. Although many options, such as language and temperature indication settings are the same for all setups, others depend on the type of system you have. MENU Preferences 1 Touch MENU. The thermostat displays a list of options. 2 Select Preferences > Advanced Preferences. The thermostat displays the first screen of options that you can change.
Setting advanced preferences Advanced Preferences Options (MENU > Preferences > Advanced Preferences) Screen Title Settings and Options Scheduling Options Select Non-programmable or Programmable. Programmable uses default or customized programming to automatically raise and lower temperature settings for different times of day. Temperature Indication Scale Select Fahrenheit or Celsius. Heating and Cooling System Changeover Select Manual or Automatic.
Setting advanced preferences Advanced Preferences Options (concluded) Screen Title Settings and Options Early Recovery for Heating Select No to begin recovery on schedule or Yes to ramp up temperature early. Early Recovery for Cooling Select No to begin recovery on schedule or Yes to ramp down temperature early. Temperature Limits Select the Minimum Cool and Maximum Heat Limit. Keypad Lockout Select Unlocked/Partially Locked/Locked. Clock Format Select 12 Hour or 24 Hour.
Changing system setup If your needs change, you can change the basic system settings you chose during thermostat installation (page 22). MENU System Setup 1 Touch MENU. The thermostat displays a list of options. 2 Select System Setup. The thermostat displays the first screen of options that you can change. 3 On each screen, make changes as needed then touch Next to display new options. Repeat this step until you have made all changes. Tables on pages 65-66 explain the System Setup screens and options.
Changing system setup Note: Touch the orange Help button on any screen for more information. System Setup Options (MENU > System Setup) Screen Title Settings and Options Language English/Français/Español. Thermostat installed in Home/Business (Thermostat is used in a residential (default) or commercial setting). Your thermostat location Touch THERMOSTAT button to display a screen where you can enter a custom name using a keypad. If you have only one thermostat, you can leave the name as THERMOSTAT.
Changing system setup System Setup Options (concluded) Screen Title Settings and Options Your heating system type If you selected Hot Water or Steam on “Your system type,” select the specific heating system here. Number of cooling stages Select 1 Stage (default) or 2 Stages. If you are unsure, note which wires you have connected: ‘Y’ wire only (1 stage) or ‘Y’ and ‘Y2’(refer to your check list in Step 6 on page 12.) Number of heating stages Select 1 Stage (default) or 2 Stages.
Frequently asked questions QQ: Will my thermostat still work if I lose my Wi-Fi connection? AA: Yes, the thermostat will operate your heating and/or cooling system with or without Wi-Fi. QQ: How do I find the password to my router? AA: Contact the manufacturer of the router or check the router documentation. QQ: Why isn’t my thermostat connecting to my Wi-Fi router even though it is very close to the thermostat? AA: Verify that the password entered for the Wi-Fi router is correct.
Frequently asked questions QQ: I registered on the Total Connect Comfort website but was unable to login using my new account. AA: Check your email and ensure that you received an activation email. Follow the instructions to activate your account and then login to the website. QQ: I have signed up on Total Connect Comfort website and have not received a confirmation email. AA: Check for the email in your Junk or Deleted folder.
Getting help and responding to alerts Your thermostat offers two types of assistance, if these assistance options do not answer your questions, review the FAQs (pages 67-68) and troubleshooting tips (pages 71-72). Help On screen help Most displays include an orange Help button. 1 Touch Help to display instructions for using the screen. 2 Touch OK to redisplay the original screen.
Getting help and responding to alerts On screen alerts Your home screen will display a large orange button when you need to correct a setting or system problem. Replace Air Filter 1 Touch the button, the thermostat displays instructions for completing the task to which you were alerted. Press for info 2 Touch OK on the instruction display, then carry out the task. When the task is complete, the alert button will no longer be displayed.
Troubleshooting If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily. Display is blank • • • • Cannot change system setting to Cool • Check that System Setup screen “Your thermostat controls” or “Your system type” is set to match your heating and cooling equipment (see page 65).
Troubleshooting Heat pump issues cool air in heat mode, or warm air in cool mode • Check your setting for System Setup screen “Type of changeover valve” to make sure it is properly configured for your system (see page 66). Heating or cooling system does not respond • Touch SYSTEM to set system to Heat. Make sure the temperature is set higher than the Inside temperature. • Touch SYSTEM to set system to Cool. Make sure the temperature is set lower than the Inside temperature.
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.
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.
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).
69-2809EF-03 Automation and Control Systems Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 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. 69-2809EF—03 M.S. Rev. 11-13 Printed in U.S.A.
