TRANE XR302 thermostat TCONT302AS42DA

Replacing a thermostat should not mean running new wires through the walls. The Trane TCONT302AS42DA was designed to fit almost any installation: it runs on batteries, hardwired with a common wire or by power stealing, and it controls a furnace just as well as a heat pump or a dual fuel system. Its 5 in touchscreen makes programming clear, even for people who have never liked setting a thermostat.

A touchscreen thermostat that adapts to your wiring

Who it's for

The TCONT302AS42DA suits homeowners who want to upgrade an old thermostat without electrical work, families looking for a large, easy-to-read screen, and building owners who need a reliable unit with keypad lockout. It is meant for people who do not need phone control: it has no Wi-Fi, which keeps it simple and self-contained.

Compatible systems

The thermostat controls gas, oil or electric systems, heat pumps and dual fuel, with up to 4 heating stages and 2 cooling stages. A home with a furnace and an air conditioner, a central heat pump with electric backup heat, or a dual fuel installation with a gas furnace can all be controlled by the same model.

Three ways to power it

The TCONT302AS42DA runs on 24 V. A common wire (C) is preferable but not required: the thermostat can run on batteries (two AA batteries included), be hardwired or use power stealing. When replacing a thermostat in an older home whose wiring has only two or three conductors, this flexibility saves a lot of work.

Your choice of programming

Three modes are available: 7-day programming, 5/1/1-day programming or non-programmable operation. The 7-day programming suits schedules that change from one day to the next. The 5/1/1 mode separates weekdays, Saturday and Sunday. The non-programmable mode is for occupants who prefer a fixed setpoint, as in some rental units. The setpoint range is 45 to 99 °F.

Programming from your armchair

The thermostat comes off its base and keeps running on its batteries, so you can program it while sitting comfortably, then put it back in place. This practical touch is appreciated by people who find it tedious to program while standing in front of the wall.

Remote sensors

As an option, a wired indoor or outdoor sensor can be added. The thermostat can then control temperature from a single indoor sensor or average that reading with its internal sensor. If your thermostat is installed in a hallway or near an exterior door, a sensor placed in the main room gives more accurate temperature control.

Winter savings

In a home heated from November to April, the simplest way to cut consumption is to lower the setpoint at night and during the hours when no one is home. The TCONT302AS42DA does this automatically, following the schedule you choose. With a heat pump or dual fuel, proper stage management avoids calling on the backup heat more than necessary.

Day to day

The 5 in screen displays the temperature and the setpoint in large characters. Adjustments are made with a fingertip, and keypad lockout prevents unwanted changes. Just remember to replace the batteries when the indicator says so, if the thermostat is not wired with a C wire.

Choosing the right location

A thermostat reads the temperature of the spot where it is mounted. For accurate control, it must be installed on an interior wall, away from direct sunlight, supply vents, exterior doors and appliances that give off heat. When replacing a thermostat, we check the existing location; if it was poorly chosen, a remote sensor can correct the reading without moving the thermostat.

302 or 303

The TCONT302AS42DA and the TCONT303AS42DA share the same 5 in touchscreen, the same programming modes, the same power options and the same capacity of 4 heating stages and 2 cooling stages. The difference: the 303 adds a humidity sensor, a humidifier relay and a dehumidification output. If your home has no central humidifier and humidity is not a concern for you, the 302 offers everything else. For remote control, you need to turn to a Wi-Fi model such as the XR724.

Technical specifications

• Stages: up to 4 heating / 2 cooling; heat pump and dual fuel
• Systems: gas, oil or electric; heat pump; dual fuel
• Power: 24 V; common wire preferable, not required with 2 AA batteries (included); battery-powered, hardwired or power stealing
• 5 in diagonal touchscreen
• Programming: 7-day, 5/1/1-day or non-programmable
• Optional wired indoor or outdoor sensor; control from one indoor sensor or averaging with the internal sensor
• Armchair programming (on batteries)
• Keypad lockout
• Setpoint range: 45 to 99 °F
• Connectivity: none (no Wi-Fi)
• Dimensions: 4.56 in H x 5.81 in W x 1.18 in D
• Colour: glossy white

Leave the installation to AirGreen

Installation

Our technicians identify your equipment, count the available conductors and choose the most reliable power option for your situation. The thermostat is connected, configured for the system type and the number of stages, then tested in heating and cooling. If a remote sensor is planned, it is installed and configured during the same visit.

Commissioning

We choose the programming mode with you, set the schedule and turn on keypad lockout if needed. We show you how to remove the thermostat to program it from your armchair.

Maintenance

Replace the batteries as needed, wipe the screen with a dry cloth and have your furnace or heat pump serviced every year. A clean filter helps the thermostat maintain comfort with less energy.

Why AirGreen

AirGreen Inc. is a family-owned HVAC company in Montreal, in business for more than 15 years, holding an RBQ licence, with a showroom in Boucherville. We install furnaces, central and wall-mounted heat pumps and air conditioners, and we choose the thermostat that truly suits your equipment.

For the purchase and professional installation of the Trane TCONT302AS42DA thermostat, contact AirGreen. We serve Montreal, Laval, Longueuil, the North Shore and the South Shore.