TRANE XR724 smart thermostat TCONT724AS42DA

In stock
SKU: TCONT724AS42DA

Not everyone needs a colour screen or a home automation bridge.

24 Vlow-voltage thermostat
Wi-Fiincluded
1 yearmanufacturer warranty
Wi-Fi includedTouch screenProgrammableVoice control
Get my installed price 514 316-2973

Quick facts

Model numberTCONT724AS42DA
ProgrammableYes
Wi-FiIncluded
Touch screenYes
ENERGY STARNo
Warranty1 year

Wi-Fi, humidity and maintenance reminders in a no-frills thermostat

Not everyone needs a colour screen or a home automation bridge. What most homeowners want is a comfortable home, reliable remote control and a thermostat that reminds them to change the filter. The Trane XR724 TCONT724AS42DA meets these expectations: a Wi-Fi smart thermostat with a 4.3 in black-and-white touchscreen, a built-in humidity sensor, 7-day programming and maintenance reminders.

Compatibility

The XR724 installs on standard HVAC systems of any brand: gas or electric furnace, heat pump or dual fuel. It controls up to 4 heating stages and 2 cooling stages. It is not intended for variable-speed communicating systems or zoned systems. It is powered by 24 V AC from the system and requires a common wire (C) in addition to the power wire (R): our technicians check this before installation.

Wi-Fi and voice control

The thermostat connects to 2.4 GHz Wi-Fi (802.11n). With the Trane Home app, you adjust the temperature and schedule from your phone. The XR724 also works with Amazon Alexa and Google Home. To integrate Z-Wave devices, a separate Z-Wave bridge is required: the XR724 does not include one.

Humidity under control

The built-in humidity sensor displays the home's relative humidity and allows a dehumidification setting in cooling mode. In summer, this helps you get back to a less muggy house during humid heat waves. In winter, the humidity display tells you if the air is getting too dry, and the thermostat can remind you to maintain the humidifier.

Programming and savings

7-day programming allows up to four periods per day. The one-touch energy-saving mode applies a savings setpoint in a single tap, for example when you leave for the weekend. During the Quebec winter, lowering the temperature on a schedule at night and while you are away reduces the run time of the furnace or heat pump without you having to think about it.

Ventilation and remote sensors

With a variable-speed indoor unit, the XR724 lets you set the continuous fan speed, which promotes better air circulation and a more even temperature from one room to the next. It accepts an optional remote indoor sensor and an outdoor sensor, useful for correcting the reading of a poorly placed thermostat or for displaying the outdoor temperature.

Reminders and locking

Filter, maintenance and humidifier reminders tell you when it is time to take care of your system. Screen lock and guest lock prevent unwanted changes, which is handy with young children or in a rental unit. The firmware is upgradable.

Who it is for

The XR724 suits owners of a furnace with an air conditioner, a central heat pump or a dual fuel system who are replacing an old programmable thermostat and want to add remote control. It is also well suited to rental buildings and secondary homes: the guest lock limits what occupants can adjust, and the app lets the owner monitor the temperature remotely, for example during a cold snap.

Day to day

The black-and-white fixed-segment screen stays easy to read and understated. Most settings take just a few taps: changing the setpoint, turning on energy-saving mode, checking the humidity. More detailed adjustments, such as the weekly schedule, can also be made comfortably from the app. When travelling, you can check that the house stays at a safe temperature and bring it back to comfort before you return.

The XR724 versus its siblings

In Trane's connected lineup, the XR724 is the most affordable option. The XL824 adds an HD colour screen, weather, an Ethernet connection and a built-in Z-Wave bridge. The Priority offers Wi-Fi 6, occupancy detection and advanced diagnostics. The XR724 suits homeowners who want the essentials of a connected thermostat, with humidity management, without paying for features they would not use.

Technical specifications

  • Stages: up to 4 heating / 2 cooling
  • Systems: standard (gas/electric), heat pump or dual fuel; standard HVAC systems of any brand; not compatible with variable-speed communicating systems or zoned systems
  • Power: 24 V AC supplied by the system; common (C) and power wires required
  • 4.3 in black-and-white touchscreen (fixed-segment LCD), screen lock
  • Connectivity: Wi-Fi 802.11n 2.4 GHz; Z-Wave through a separate bridge
  • Trane Home app; compatible with Amazon Alexa and Google Home
  • 7-day programmable, up to 4 periods per day
  • Built-in humidity sensor, relative humidity display and dehumidification setting
  • Adjustable continuous fan with a variable-speed indoor unit
  • Optional remote sensor (1 indoor / 1 outdoor)
  • Screen lock and guest lock
  • One-touch energy-saving mode
  • Filter, maintenance and humidifier reminders
  • Upgradable firmware
  • Dimensions: approximately 5.75 in W x 3.5 in H x 1 in D
  • Silver finish

Installation and setup by AirGreen

A compliant installation

Our technicians first check for a C wire. If your old thermostat did not use one, we assess the appropriate wiring solution. The XR724 is then connected, configured for your equipment (furnace, heat pump, dual fuel, number of stages) and linked to your Wi-Fi. We pair the Trane Home app, then Alexa or Google Home if you wish.

Initial settings

We set up a 7-day schedule with you, set the filter reminders according to the type of filter installed and adjust dehumidification if you have air conditioning. We turn on the guest lock if needed.

Maintenance

Follow the filter reminders: a clogged filter reduces airflow and forces the system to run longer. Clean the screen with a dry cloth. Have your furnace or heat pump serviced every year.

Why AirGreen

AirGreen Inc. is a family-owned HVAC company from Montreal, in business for more than 15 years, holding an RBQ licence, with a showroom in Boucherville. We install furnaces, heat pumps and air conditioners, and we know how to choose a thermostat that matches your equipment and how you use it.

For the purchase and professional installation of the Trane XR724 TCONT724AS42DA smart thermostat, contact AirGreen. We serve Montreal, Laval, Longueuil, the North Shore and the South Shore.

01 · Key facts

Key facts: TRANE XR724 TCONT724AS42DA

Four things to know, then its ID card in twelve answers. “—” means the manufacturer does not publish it.

Type24 V thermostatTRANE XR724 TCONT724AS42DA
ForstandardSystems
Power24 VAC supplied by the systemPower supply
ConnectionWi-Fi 802.11n 2.4 GHzConnectivity
02 · Compatible?

Is the TRANE XR724 TCONT724AS42DA compatible with your heating?

Two steps, thirty seconds. The verdict takes your system and your wiring into account.

Full compatibility table

Heating systemVerdictWhy
Central heat pumpYesThe spec sheet lists heat pumps.
Dual energy (heat pump + furnace)YesThe spec sheet lists heat pumps.
Electric furnaceYes24 V control of the furnace.
Gas or oil furnaceYes24 V control of the furnace; the thermostat does not touch the fuel supply.
Steam, gravity or hot waterTo confirmPossible in 24 V depending on the model: our technicians confirm the wiring.
Baseboards, convectors, radiant ceilingNoA baseboard runs on 120/240 V: it needs a line-voltage electronic thermostat.
Fan-forced heaterNoA fan-forced heater needs a line-voltage thermostat rated for fans.
Electric floor heatingNoElectric floor heating needs a floor thermostat with a probe.
Wall or ducted mini-split heat pumpNoA wall heat pump is controlled by its own brand’s controller or a compatible Wi-Fi module.
03 · Wiring

The terminals behind the thermostat

Tap an element to see what it does. A working diagram, not a substitute for the manufacturer’s installation guide.

04 · Try it

Try the TRANE XR724 TCONT724AS42DA before you buy

Raise the setpoint, change the mode: see how it responds.

05 · Your savings

How much good programming can save you

Set up your typical week. The math follows the rule published by Natural Resources Canada.

06 · Winter and rebates

Winter, Rate Flex D and rebates: what this thermostat changes

With Hydro-Québec’s Rate Flex D, electricity costs less most of the winter and more during a few peak hours. A programmable thermostat does the work for you.

07 · Room by room

The sensor decides which room counts

An interactive drawing of what this kind of control does day to day.

08 · Head to head

The TRANE XR724 TCONT724AS42DA or its closest sibling?

The most useful comparison: the model right next to it in our catalogue.

09 · The right choice

The right thermostat in three questions

If this model is not the right one for you, the page says so and shows you which one is.

10 · Installation

Installed and set up by our technicians, in five steps

What we do at your place, in order. The on-site estimate is free.

  1. 01InspectionEquipment, stages to control and existing wiring.
  2. 02C wireCommon wire added if the model needs it and it is missing.
  3. 03MountingWall base, terminal wiring, cover plate if needed.
  4. 04SettingsEquipment type, stages, dual energy and accessories.
  5. 05Start-upConnection, app, schedule and tests with you.
11 · Specifications

TRANE XR724 TCONT724AS42DA specifications

From the manufacturer’s sheet. Type a word: the list filters as you write.

GeneralStagesup to 4 heat / 2 cool
GeneralSystemsstandard (gas/electric), heat pump or dual energy; standard HVAC systems of all brands; not compatible with variable-speed communicating systems or zoned systems
ElectricalPower supply24 VAC supplied by the system; common (C) and power wires required
GeneralOther4.3 in. black and white touch screen (fixed-segment LCD), screen lock
ConnectivityConnectivityWi-Fi 802.11n 2.4 GHz; Z-Wave via separate bridge
GeneralOtherTrane Home app; compatible with Amazon Alexa and Google Home
GeneralOther7-day programmable, up to 4 periods per day
GeneralOtherBuilt-in humidity sensor, relative humidity display and dehumidification setting
GeneralOtherAdjustable continuous fan with variable-speed indoor unit
GeneralOtherRemote sensor option (1 indoor / 1 outdoor)
GeneralOtherScreen lock and guest lock
GeneralOtherOne-touch energy saving mode
GeneralOtherFilter, maintenance and humidifier reminders
GeneralOtherUpgradable firmware
Format and contentsDimensionsabout 5.75 in. W x 3.5 in. H x 1 in. D
GeneralOtherSilver finish
12 · Questions

Frequently asked questions about the TRANE XR724 TCONT724AS42DA

Short answers, no detours.

What does the TRANE XR724 TCONT724AS42DA work with?

According to the manufacturer’s sheet: standard (gas/electric), heat pump or dual energy; standard HVAC systems of all brands; not compatible with variable-speed communicating systems or zoned systems.

Does it need a C wire?

Yes. It needs wired 24 V power with a common wire. If the wire is missing, our technicians add a conductor during installation.

Can it control electric baseboards?

No. It is a low-voltage (24 V) thermostat. 120/240 V baseboards need a line-voltage electronic thermostat.

Can it be controlled remotely?

Yes, over Wi-Fi.

What is the warranty?

1 year, per the manufacturer’s information.

Does AirGreen install it?

Yes. We sell and install this product in Montréal, Laval, Longueuil, the South Shore and the North Shore. The on-site estimate is free.

AirGreen · Montréal, Laval, Longueuil, South Shore, North Shore

Your thermostat, installed and set up by our technicians

We check your system and wiring, install the thermostat, connect it and program it with you. One visit, one installed price.

RBQ 5645-9605-01Ventilation, refrigeration and electrical
Free estimateon site, before any purchase
Quote in 24 hinstalled price, no surprises
Bouchervilleshowroom

Sources checked on October 5, 2026.

  • Manufacturer’s spec sheet for this product (summarized in the description and specifications above)
  • Natural Resources Canada, “Keeping the Heat In”, section 9 (modified September 29, 2025)
  • Hydro-Québec, electricity rates in effect April 1, 2026; Rate Flex D and Winter Credit Option pages (consulted October 5, 2026)
  • Énergir, smart thermostat grant (consulted October 5, 2026)

Savings shown are estimates; only Hydro-Québec and Énergir confirm a rate or a rebate.