Multiple programming options that fit your lifestyle:
Smart Alerts. Push notifications remind you of filter changes and warn you of extreme indoor temperatures.
Smart Response. Learns your heating and cooling system to deliver the optimal temperature at the right time.
Auto Change From Heat to Cool. Automatically determine if your home needs heating or cooling to provide maximum comfort.
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning the 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.
REQUIRED: 24 VAC POWER (“C” WIRE)
C-Wire Power Adapter is available to provide power if needed.
Interested in more Resideo products? Visit honeywellhome.com to learn about all available products connected by the Resideo app.
The screen will wake up by touching the center area of displayed temperature.
If your Wi-Fi network is not working, you can alternatively setup your thermostat manually and connect your phone later
Note: ISU options available may vary upon the thermostat model and equipment setup.
# ISU | ISU Name | ISU Options (defaults in bold) | Notes |
120 | Schedule Type | No Schedule MO-SU = Every day the same MO-FR, SA, SU = 5-1-1 schedule MO-FR, SA-SU = 5-2 schedule Each Day = Every day individual | You can change default MO-FR, SA-SU schedule here. To edit periods during days, tempera- ture setpoints, or to turn Schedule On/Off, from the home screen, go to MENU/SCHEDULE. |
125 | Temp Scale | Fahrenheit, Celsius | |
130 | Outdoor Temp | No, Internet | Select outdoor temperature data source. This ISU automatically defaults to Internet when registered to the Resideo app. An outdoor temperature is required to set the following ISUs: ISU 355 Compressor Lockout, ISU 356 Aux Heat Lockout. |
200 | System Type | Conventional Forced Air Heat Pump Boiler Cool Only | Basic selection of system your thermostat will control. |
205 | Equipment Type | Conventional Forced Air Heat: Standard Gas (STD GAS), High Efficiency Gas (EFF GAS), Oil, Electric, Fan Coil* | This option selects the equipment type your thermostat will control. Note: This option is NOT displayed if ISU 200 is set to Cool Only. * Fan coil setting is for a residential application with a hot water coil in an air-handler. |
Heat Pump: Air To Air, Geothermal | |||
Boiler: Hot Water, Steam | |||
218 | Reversing Valve | 0/B on Cool, 0/B on Heat | This ISU is only displayed if ISU 200 is set to Heat Pump. Select whether reversing valve O/B should energize on cool or on heat |
220 | Cool Stages (#200=Conv./ 200=HP) | 0, 1, 2 | |
221 | Heat Stages/ Aux/E Stages (#200=Conv./ 200=HP) | Heat Stages: 0, 1, 2 AUX/E Stages: 0, 1 | Maximum of 2 Heat Stages for conventional systems. Maximum of 1 Aux/E stages for heat pump systems. |
230 | Fan Control | Equipment, Thermostat | This ISU is only displayed if ISU 205 is set to Electric Forced Air or Fan Coil. |
300 | Auto Changeover | On, Off | OFF: The user must select heating or cooling as needed to maintain the desired indoor temperature. ON (Automatic): On (enabled) Allows user to select Auto Changeover as one of the system modes from the home screen. In auto mode, the thermostat can control either heating or cool- ing to maintain the desired indoor temperature. |
303 | Auto Differential | 0 °F to 5 °F or 0.0 °C to 2.5 °C | Differential is the minimum number of degrees rise or fall required during off cycle to switch from the last active mode (heat or cool) to the opposite mode when the thermostat is in auto-changeover. Differential is NOT deadband. The deadband temperature between when heating (or cooling) cycles on and cycles off to maintain setpoint is not adjustable. The T5 thermostat uses an algorithm that fixes deadband at 0 °F. |
355 | Balance Point (Compressor Lockout) | Off, 5 °F to 60 °F (in 5 °F increments) or -15.0 °C to 15.5 °C (in 2.5 °C or 3.0 °C increments) | Compressor Lockout requires an outdoor temperature. Set Compressor Lockout to the temperature below which it is inefficient to run the heat pump. When outside temperature is below this setting, thermostat will lockout heat pump and run Aux Heat only. This ISU is only displayed if ISU 130 = Internet, ISU 200 is set to Heat Pump, ISU 221 Aux/E stages = 1,. |
356 | Aux Heat Lock Out (Aux Heat Outdoor Lockout) | Off, 5 °F to 65 °F (in 5 °F increments) or -15.0 °C to 18.5 °C (in 2.5 °C or 3.0 °C incre- ments) | Aux Heat Lockout requires an outdoor temperature. Set Aux Heat Lockout to optimize energy bills and to not allow it to run the more expensive Aux Heat source above certain outdoor tem- perature limit. This ISU is only displayed if ISU 200 is set to Heat Pump, AND if ISU 221 Aux/E stages = 1. |
365 | Cool 1 CPH (Cooling cycle rate stage 1) | 1 – 6 CPH (3 CPH) | This ISU is only displayed when Cool /Compressor Stages is set to 1 or more stages. Cycle rate limits the maximum number of times the system can cycle in a 1 hour period measured at a 50% load. For example, when set to 3 CPH, at a 50% load, the most the system will cycle is 3 times per hour (10 minutes on, 10 minutes off). The system cycles less often when load condi- tions are less than or greater than a 50% load. |
366 | Cool 2 CPH (Cooling cycle rate stage 2) | 1 – 6 CPH (3 CPH) | This ISU is only displayed when Cool /Compressor Stages is set to 2. |
# ISU | ISU Name | ISU Options (defaults in bold) | Notes |
370 | Heat 1 CPH (Heating cycle rate stage 1) | 1 – 12 CPH | This ISU is only displayed when Heat Stages is set to 1 stage or more stages. Cycle rate limits the maximum number of times the system can cycle in a 1 hour period measured at a 50% load. For example, when set to 3 CPH, at a 50% load, the most the system will cycle is 3 times per hour (10 minutes on, 10 minutes off). The system cycles less often when load conditions are less than or greater than a 50% load. The recommended (default) cycle rate settings are below for each heating equipment type: Standard Efficiency Gas Forced Air = 5 CPH; High Efficiency Gas Forced Air = 3 CPH; Oil Forced Air = 5 CPH; Electric Forced Air = 9 CPH; Fan Coil = 3 CPH; Hot Water Radiant Heat = 3 CPH; Steam = 1 CPH. |
371 | Heat 2 CPH (Heating cycle rate stage 2) | 1 – 12 CPH | This ISU is only displayed when Heat Stages is set to 2 stages. The recommended (default) cycle rate settings are below for each heating equipment type: Standard Efficiency Gas Forced Air = 5 CPH; High Efficiency Gas Forced Air = 3 CPH; Oil Forced Air = 5 CPH; Electric Forced Air = 9 CPH; Fan Coil = 3 CPH; Hot Water Radiant Heat = 3 CPH; Steam = 1 CPH. |
375 | Aux Heat CPH (Heating cycle rate Auxiliary Heat) | 1 – 12 CPH | This ISU is only displayed when ISU 200 = Heat Pump and ISU 221=1. It is only displayed when Auxiliary Heat is configured. The recommended cycle rate settings are below for each heating equipment type: Standard Efficiency Gas Forced Air = 5 CPH; High Efficiency Gas Forced Air = 3 CPH; Oil Forced Air = 5 CPH; Electric Forced Air = 9 CPH. |
425 | Smart Response | On, Off | Smart Response is a comfort setting. Heating or cooling equipment will turn on earlier, ensur- ing the indoor temperature will match the setpoint at the scheduled time. |
429 | Max Cool Temperature | from Min. Cool Temp. to 99 °F or to 37.0 °C (90 °F or 32 °C) | The user cannot set the cooling temperature above this level. |
430 | Min Cool Temperature | from 50 °F or 10.0 °C to Max. Cool Temp. (50 °F or 10 °C) | The user cannot set the cooling temperature below this level. |
431 | Max Heat Temperature | from Min. Heat Temp. to 90 °F or to 32.0 °C (90 °F or 32 °C) | The user cannot set the heating temperature above this level. |
432 | Min Heat Temperature | from 40 °F or 4.4 °C to Max. Heat Temp. (50 °F or 10 °C) | The user cannot set the heating temperature below this level. |
702 | Air Filters | 0 – 2 | This ISU refers to the number of air filters in the system. |
711 | Air Filter 1 Reminder | Off 10, 20, 30, 45, 60, 90, 120, 150 Run Time Days 30, 45, 60, 75 Days 3, 4, 5, 6, 9, 12, 15 Months | Choose either calendar or equipment run time-based reminder. |
712 | Air Filter 2 Reminder | Off 10, 20, 30, 45, 60, 90, 120, 150 Run Time Days 30, 45, 60, 75 Days 3, 4, 5, 6, 9, 12, 15 Months | Choose either calendar or equipment run time-based reminder. |
810 | Hum Pad Reminder | Off 6, 12 Calendar Months | |
921 | Dehum Filter Reminder | Off 30, 60 Calendar Days 3 – 12 Calendar Months (in 1 month increments) | |
1018 | Vent Filter Reminder | Off, 3, 6, 9, 12 months | |
1100 | UV Devices | 0 – 2 | Some systems may have two UV devices, one for the A-Coil and another for Air Treatment. A replacement reminder can be setup for each one separately. |
1105 | UV Bulb 1 Reminder | Off, 6, 12, 24 months | |
1106 | UV Bulb 2 Reminder | Off, 6, 12, 24 months | |
1401 | Idle Brightness | 0= Off, 0 – 5 | Adjust brightness of an inactive backlight (idle screen) from default 0 (backlight off) to 5 (maximum brightness). |
1410 | Clock Format | 12 hour, 24 hour | |
1415 | Daylight Saving | On, Off | Set to Off in areas that do not follow Daylight Saving Time. |
Will the T5 Smart Thermostat still work if Wi-Fi connection is lost?
Yes, the temperature can be adjusted directly at the thermostat. However, some features, including geofencing, are managed only through the Resideo app and will not function while the connection is down. The thermostat will automatically reconnect to Wi-Fi once the network is restored.
The T5 Smart Thermostat is not finding the in home Wi-Fi network.
The thermostat operates in the 2.4GHz range. That may be why the thermostat does not see the network but the smartphone, which operates in both the 2.4 and 5.0 GHz range, sees the network. Most routers will broadcast two networks, one SSID on the 5.0 GHz radio and one SSID on the 2.4 GHz radio.
A change was made on the Resideo app but it has not shown up on the T5 Smart Thermostat.
There may be a short delay after making temperature and setting changes in the Resideo app.
Can there be multiple users for geofencing?
Yes, there can be multiple users. Geofencing will trigger based on the last person to leave and the first person to return. To properly use geofencing with multiple users:
How are multiple users set up with thermostat?
Access can be given to any or all thermostat locations through the Resideo app. Start by touching the three-line menu icon in the upper left-hand corner of the home screen. Select Manage Users and touch Add User located at the bottom of the screen. Type in the email address of the person to be invited. If they have an account set up, the location will be automatically added to their account. If they don’t have an account, they will receive an email invitation prompting them to download the Resideo app and create their own account.
Note: All individuals with access to a thermostat share the same user privileges. Users added will be able to change the thermostat’s settings, as well as add or delete other users.
Is there a way to extend the signal strength?
The range or distance of the Wi-Fi signal is determined by the router. Check the router’s manual for additional information.
There is an alert that says Wi-Fi Signal Lost. What does that mean?
The Wi-Fi signal to the thermostat has been lost. Wait for the thermostat to reconnect or select a new network within the Resideo app configuration menu. If the thermostat is unable to reconnect, you will need to troubleshoot the router to determine the cause.
Why is the thermostat showing up as offline (strike-through Wi-Fi icon) on top of right corner of thermostat display?
If the thermostat displays a strike-through Wi-Fi icon on its screen or shows up as offline on the Resideo app, it has lost connection to the network. Make sure the router is powered and broadcasting. The home’s Wi-Fi network may need to be reset by power cycling the router. Consult the router’s instruction manual for directions on power cycling. When the network has been restored, the thermostat will automatically reconnect.
An activation email hasn’t been received.
An email will be sent from connected-Home@alarmnet.com. An activation email is needed to complete the account setup. If an activation email is not received after five minutes, check the Spam folder of the email account. If you do not find it in the Spam folder, click on the Resend button and the activation email will be resent. If you still do not receive your activation email, please contact the Technical Support team at 1-800-633-3991 for help.
FCC REGULATIONS
47 CFR § 15.19 (a)(3)
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
47 CFR § 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.
47 CFR § 15.105 (b)
See https://customer.resideo.com/en-US/support/residential/codes-and-standards/FCC15105/Pages/default.aspx for additional FCC information for this product.
IC REGULATIONS RSS-GEN
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
Apple® HomeKit™ Setup Code
The T5+ Smart Thermostat supports Apple HomeKit. Open HomeKit app, follow the instructions, and enter the code displayed on Thermostat when prompted.
For Warranty information go to honeywellhome.com
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.
CAUTION: ELECTRONIC WASTE NOTICE
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.
Use of the Works with Apple badge means that an accessory has been designed to work specifically with the technology identified in the badge and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. AirPlay, iPad, iPad Air, iPad Pro, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. HomePod is a trademark of Apple Inc.
Resideo Inc., 1985 Douglas Drive North Golden Valley, MN 55422 33-00474-03 M.S. Rev. 11-22 | Printed in the United States © 2022 Resideo Technologies, Inc. All rights reserved. The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
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