Honeywell Home T9 Smart Thermostat
Model: RCHT9610WFW2004
Type: Installation Guide
?️ Search for local rebates: HoneywellHome.com/Rebates
? Online Guides: honeywellhome.com
Read Before Installing
Included in Your Box:
- Installation Guide
- C-Wire Adapter (optional)
- Screws and anchors
- T9 Wi-Fi Thermostat
- UWP Wallplate
- Wire labels
Tools You Will Need:
- Phillips screwdriver
- Small flat head screwdriver
- Pencil
- Level
- Home Wi-Fi Password
You May Need:
- Wire Stripper
- Needle-nose pliers
- Drill and drill bit
- Flashlight
Compatibility Section
❗ REQUIRED: A C-Wire (common wire) is needed for 24 VAC power. If you do not have a C-Wire, then a C-Wire Adapter is provided. This guide will help you determine if you have a C-Wire or will need to use the included C-Wire Adapter (Step 10). The C-Wire is a wire that originates from your heating and cooling system and needs to be connected to the C terminal on your thermostat. There is no universal color used to designate this type of wire.
Diagram showing C-Wire with terminals Y, G, C, U, R, W, Y, C, U, A. Diagram showing C-Wire Adapter.
- Compatible with most heating, cooling, and heat pump systems
- Does not work with electric baseboard heat (120-240V)
- Does not work with millivolt systems
- Does not support S terminals for indoor and outdoor sensors
- Compatible with Android or iOS smartphone, tablet, or device
⚠️ CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning installation.
⚠️ CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.
⚠️ CAUTION: MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.
For help, see:
ONLINE GUIDES AND SUPPORT VIDEOS AT: honeywellhome.com/support
SOCIAL: Twitter: @Honeywell_Home, Facebook: Honeywell Home
Or contact:
EMAIL: honeywellhomessupport@honeywell.com
PHONE: 1-800-633-3991
Electrical Specifications: INPUT: 24V~@60Hz, 0.2A
Removing Your Old Thermostat
You will need: Screwdriver, needle-nose pliers
Turn Off Power
To protect your equipment, turn off the power at the breaker box or switch that controls your heating and cooling equipment.
Note: The thermostat off switch will not turn off the power to the equipment.
Diagram showing a breaker box with switches and a thermostat switch, labeled OFF/ON.
Check That Your System Is Off
Change the temperature on your old thermostat so that your system starts heating or cooling. If you don't hear or feel the system turn on within 5 minutes, the power is off.
Note: If you have a digital thermostat that has a blank display, skip this step.
Diagram showing a thermostat display with 75 and a crossed-out heating/cooling symbol.
Remove Your Existing Thermostat From the Wall Plate
On most thermostats, you can take off the thermostat by grasping and gently pulling. Some thermostats may have screws, buttons, or clasps.
⚠️ Do not remove any wires from your thermostat at this time!
Diagram showing a hand gently pulling a thermostat off a wall plate.
Compatibility Check
Do You Have a Line Voltage System?
Line voltage systems have thick black wires with wire nuts or are labeled high voltage (120V or higher).
YES: Your system is not compatible. Call 1-855-733-5465 to find a pro-installer in your area.
NO: Continue to the next step.
Diagram showing thick black wires with a wire nut and a label "Wire nut" and "Thick black wire".
Take a Picture of Your Existing Wall Plate's Wiring
In order to capture all of the letters next to the terminals, be sure to take multiple pictures from different angles. You may need to reference this image later.
Diagram showing a hand holding a smartphone taking a picture of a wall plate's wiring.
Remove Any Jumpers
A jumper is used to connect two terminals. It may look like a small staple or a colored wire.
Do not discard. Keep jumpers with your old wallplate.
Diagram showing an example of a jumper connecting two terminals labeled R and RC.
Label the Wires
Use the stickers provided with your new thermostat to label each wire on your existing wall plate.
Do not label jumpers. Your new thermostat does not need jumpers.
Diagram showing wire labels being applied to wires connected to terminals.
Wiring
Write Down the Colors of the Wires
Check the boxes and write down the color of the wires connected to terminals that are coming from the wall. Check all that apply (not all will apply).
Terminal Wire Color Terminal Wire Color A or L/A R C Required* Rc E RH G W K W2 or Aux O/B Y U (1 or 2)** Y2 * A C-wire or C-Wire Power Adapter (included) is required.
** The T9 Smart thermostat cannot control equipment wired to U1 or U2.
If there are wires in terminals that are not listed, you will need additional wiring support. Visit honeywellhome.com/support to find out more.
Disconnect the Wires and Remove the Old Wall Plate
You may need a screwdriver to release wires from terminals.
? Tip: Wrap the wires around a pencil to prevent them from falling in the wall.
Diagram showing wires being released from terminals and wrapped around a pencil.
Do You Have a C-Wire?
Look at the thermostat wiring checklist from Step 8, or the photo you took. Is the C-Terminal checked?
YES: This means you will not need to install the included C-Wire Adapter. Skip to Installing Your New Thermostat (page 9).
NO: This means you don't have a C-wire connected to your thermostat. Continue to next step.
Diagram showing wires connected to a C-terminal.
Connecting Your Unused C-Wire
(Only complete this section if you answered No to Step 10)
You will need: Screwdriver, flashlight, wire strippers
Do You Have a Zoning Panel?
You have a zoning panel if you have multiple thermostats and one furnace or heating system.
YES: C-Wire Adapter installation is more complicated on zoned systems. Call 1-855-733-5465 to find a pro-installer.
NO: Proceed to the next step.
Diagram showing a thermostat, zoning panel, and furnace.
Do You Have an Unused Wire?
Look at the bundle of wires coming from the wall.
Note: You may have to pull the bundle of wires out from the wall to find the unused wire.
YES: Continue to Step 13.
NO: Open the included C-Wire Adapter box and follow the instruction guide.
Diagram showing an example of an unused C-wire.
Label Unused Wire
Label your unused wire with the provided “C” sticker label. You may need to use a wire stripper to expose at least 1/4 inch of the wire.
Note: If you have multiple unused wires, then label only one wire and make note of the color here:
Diagram showing wire stripping and labeling.
Go to your furnace or heating system. This system is often located in your basement, attic or garage. Bring a flashlight and screwdriver.
Remove Cover From Furnace or Heating System
Open the heating and cooling system's cover to find the control board. You should see the same terminal labels that are on your thermostat.
Note: You may need to unscrew the cover. The control board may be at the top or bottom.
Diagram showing furnace control board terminals (G, C, R, W, Y).
Find the Other End of the Unused Wire
Locate the bundle of wires that are the same as the ones at your thermostat. The unused wire should be the same color as the one near your existing thermostat. See Step 13 for the color you wrote down.
Diagram showing a bundle of wires with labels G, C, R, W, Y.
Connect the Unused Wire to the C-Terminal
Note: If there are existing wires in the C-terminal, make sure they are still connected to the C-terminal after connecting this wire.
Diagram showing a wire being connected to the C-terminal on a control board.
Close the Cover to the Furnace or Heating System
Be sure the cover is completely closed. Some systems will not power up if the cover isn't fully closed.
You've connected the C-wire. You will NOT need to use the included C-Wire Adapter.
Go back to the wall where you are installing your thermostat and continue to "Installing Your New Thermostat" on the next page.
Installing Your New Thermostat
You will need: Level, pencil, drill and a drill bit
Diagram showing thermostat, screws, UWP wallplate, anchors, and wall.
Position Wall Plate
Pull open the wall plate that was included with your new thermostat. Insert the bundle of wires through the back of the wall plate.
Make sure at least 1/4-inch of each wire is exposed for easy insertion into the wire terminals.
Diagram showing wires passing through the UWP wallplate.
Insert Recommended Wall Anchors
It is recommended that you use the wall anchors included in the box to mount your thermostat.
You can use the wall plate to mark where you want to place the wall anchors.
a) Level the wall plate
b) Mark the location of the wall anchors using a pencil
c) Remove the wall plate
d) Drill anchor holes. If your box contains red anchors, drill 7/32" holes. If your box contains yellow anchors, drill 3/16" holes.
e) Insert the wall anchors
f) Make sure the anchors are flush with the wall
g) Reposition the wall plate on wall
Diagram showing wall anchors being inserted into a wall.
Determine Correct R-Switch Position and Insert R-wire or Wires
Set the R-switch up or down based on your wiring notes in Step 8. Insert wires into the inner holes of the terminals on the wall plate. The tabs will stay down once the wire is inserted.
If you have 1 R-Wire (R, RC, RH):
1. Ensure the right R-switch is in the up position.
2. Insert your R-wire (R, Rh or Rc) into R-terminal.
If you have 2 R-Wires (R, RC, RH):
1. Set right R-switch to the down position.
2. Insert your Rc wire into Rc-terminal.
3. Insert your R or Rh wire into R-terminal.
Diagrams illustrating R-switch positions and wire insertion.
Connect Remaining Wires From Step 8
Push down on the tabs to put the wires into the inner holes of their corresponding terminals on the wall plate (one wire per terminal) until it is firmly in place.
Gently tug on the wires to verify they are secure.
? Tip: If you need to release the wires again, push down the terminal tabs on the sides of the wall plate.
Diagram showing wires being connected to terminals and a gentle tug test.
Close the Door and Mount the Wall Plate
Mount the wall plate using the provided screws. Install all three screws for a secure fit on your wall.
? Tip: Prior to tightening the screws, use a level to ensure the wall plate is level.
Diagram showing screws being tightened to mount the wall plate.
Attach Your Thermostat
Align the thermostat on the wall plate and firmly snap into place.
Diagram showing thermostat being snapped onto the wall plate.
Turn Power Back On
Go back to your circuit breaker box. Turn on the switch that controls your heating and cooling system.
Go back to your thermostat.
Complete Setup on the Thermostat
Remove the protective film and confirm that your thermostat reads “Welcome.” If you do not see this, visit honeywellhome.com/support or call 1-855-733-5465 for more help.
Diagram showing a thermostat displaying "Welcome!".
Getting the Most From the T9 Wi-Fi Thermostat
Prioritize Rooms (Requires optional Wireless Room Sensor accessory)
Prioritize a specific room or multiple rooms, or let comfort follow your move using built-in motion detection.
Control on the Go
Adjust your thermostat from anywhere using your tablet or smartphone.
Save Energy
With geofencing, you can save money on the most expensive part of your energy bill while you're away.
Simple Installation
The thermostat automatically programs itself. Just answer a few simple questions and you'll be up and running in no time.
Whole-Home Range (Requires optional Wireless Room Sensor accessory)
With up to a 200-foot* range, 20 sensors with temperature, humidity, and occupancy detection can connect to your thermostat from throughout your home.
*Range can vary based on home construction, wireless interference, and other factors.
Know Your Home Is Safe
Get customizable alerts on your mobile device such as when the basement is so cold a pipe could burst, or if the baby's room is getting too hot.
Using Your Thermostat
The screen will wake up by pressing the center area of the displayed temperature.
Diagram showing thermostat display with labels:
- Indoor Temperature: Displays the current indoor temperature.
- Current Priority: Displays the type of priority and number of rooms being prioritized. Extend your thermostat's reach with additional Wireless Room Sensors.
- Indoor Humidity: Displays the current indoor humidity.
- Adjust Temperature: Touch the up and down arrows to set your desired temperature.
- Menu: Contains features such as mode, fan, schedule, priority, and other thermostat settings.
- Desired Temperature: Displays the desired temperature.
Using Priority (Requires optional Wireless Room Sensor accessory)
Priority creates an average temperature in your home based on specific rooms. This allows you to prioritize comfort where you want it.
Diagram showing thermostat display with room prioritization examples:
- Selected Rooms: Rooms you manually select create an average temperature in your home.
- Unselected Room: Will not contribute to the average temperature.
- Selected Room: Will contribute to the average temperature.
Diagram showing active room status:
- Active Rooms: Rooms with detected motion are automatically selected to create an average temperature in your home.
- Room without Activity: No motion is detected. Will not contribute to the average temperature.
- Room with Activity: Motion is detected. Will contribute to the average temperature.
Troubleshooting
If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.
Display is Blank
- Check circuit breaker and reset if necessary.
- Make sure power switch for heating & cooling system is on.
- Make sure furnace door is closed securely.
- Make sure the C wire is connected.
Heating or Cooling System Does Not Respond
- Press Menu > System Mode > Heat > Done to set the system to Heat mode. Make sure the desired temperature is higher than the indoor temperature.
- Press Menu > System Mode > Cool > Done to set the system to Cool mode. Make sure the desired temperature is lower than the indoor temperature.
- Check circuit breaker and reset if necessary.
- Make sure power switch for heating & cooling system is on.
- Make sure furnace door is closed securely.
- Wait 5 minutes for the system to respond.
Temperature Settings Do Not Change
Make sure desired temperature is within acceptable ranges:
- Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C)
- Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C)
Aux Heat Runs in Cooling
For heat pump systems, verify there is not a wire attached to W on the UWP.
Cool Runs With a Call for Heat
For heat pump systems, verify there is not a wire attached to W the UWP.
The product should not be disposed of with other household waste. Check for the nearest authorized collection centers or authorized recyclers. The correct disposal of end-of-life equipment will help prevent potential negative consequences for the environment and human health.
2-Year Limited Warranty
Resideo warrants this product, excluding battery, to be free from defects in workmanship or materials, under normal use and service, for a period of two (2) years from the date of first purchase by the original purchaser. If at any time during the warranty period the product is determined to be defective due to workmanship or materials, Resideo shall repair or replace it (at Resideo's option).
If the product is defective:
- (i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
- (ii) call Resideo Customer Care at 1-800-633-3991. Customer Care will make the determination whether the product should be returned to the following address: Resideo 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 Resideo that the defect was caused by damage which occurred while the product was in the possession of a consumer.
Resideo's sole responsibility shall be to repair or replace the product within the terms stated above. RESIDEO 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 RESIDEO 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 TWO 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 Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-633-3991.
The operation of this equipment is subject to the following two conditions: (1) this equipment or device may not cause harmful interference, and (2) this equipment or device must accept any interference, including interference that may cause undesired operation.
