TRANE outdoor sensor BAYSEN01ATEMPA

The temperature shown by a weather app comes from a station that is sometimes several kilometres from your home. Your home, on the other hand, lives with the temperature of its own yard: colder in an open neighbourhood, milder along a sheltered wall. The Trane BAYSEN01ATEMPA is a wired outdoor temperature sensor that gives your thermostat the actual reading taken outside your home.

The real outdoor temperature, measured at your home

Why an outdoor sensor

For a heat pump or dual fuel system, the outdoor temperature is essential information: it is used to decide when the heat pump hands over to the backup heat or the furnace. An accurate local reading lets you use the heat pump for as long as it is the most advantageous option. For any system, the outdoor temperature displayed on the thermostat is also useful everyday information, when you get dressed in the morning in the middle of January.

Compatible controls

The BAYSEN01ATEMPA is compatible with the Trane XL1050 (TZON1050AC), XL950 (TZONE950AC), XL850 (TCONT850AC), XL824 (TCONT824AS), XL624 (TCONT624AS) and TCONT402 (TCONT402AN) controls. In fact, it comes with the TCONT402AN32DA model. It is not a universal sensor: it is designed for these Trane controls.

Accuracy and range

The sensor offers an accuracy of ±1.5 °F between 32 and 100 °F, and its display range extends from -40 to 140 °F. It therefore easily covers the most intense cold of the Quebec winter as well as the heat of July.

Wired connection

The BAYSEN01ATEMPA is a wired sensor: it is connected to the thermostat by a cable, with no battery and no wireless connection. This solution is simple and durable, with no battery to replace during the winter.

Who it is for

This sensor is for owners of a central heat pump or a dual fuel system run by one of the compatible Trane controls, as well as anyone who wants to display their home's real outdoor temperature on their thermostat. It also suits homes where the thermostat's Internet connection is not used, since it provides the information without relying on a weather service.

A well-chosen location

For an accurate reading, the sensor must be installed outdoors, out of direct sunlight and away from heat sources: dryer exhaust, vents, the heat pump's outdoor unit, windows. A north-facing wall, under an eave, is often a good choice. It must also be placed above the level where snow builds up.

Dual fuel in Quebec

In a dual fuel system, the heat pump heats the house for most of the winter, and the furnace or backup heat takes over when the outdoor temperature drops below a set threshold. This threshold is set in the control, and it is the outdoor temperature that triggers the switchover. With a well-placed sensor, the switchover happens at the right time: not too early, which would deprive the house of the heat pump's efficiency, and not too late, which would affect comfort. The sensor thus contributes directly to the proper operation of your system throughout the cold season.

Technical specifications

• Wired outdoor temperature sensor
• Accuracy: ±1.5 °F between 32 and 100 °F
• Display range: -40 to 140 °F
• Wired connection
• Compatible with: XL1050 (TZON1050AC), XL950 (TZONE950AC), XL850 (TCONT850AC), XL824 (TCONT824AS), XL624 (TCONT624AS), TCONT402 (TCONT402AN)
• Supplied with the TCONT402AN32DA

Installation by AirGreen's technicians

The installation

Our technicians choose the most representative location on an exterior wall of your home, mount the sensor and run the cable to the thermostat or the planned connection point. The sensor is then enabled in the control's configuration, and we check that the displayed temperature is consistent. If your system runs on dual fuel, we adjust the switchover settings based on this new reading.

Maintenance

The sensor requires virtually no maintenance. Check from time to time that it is not covered by snow, ice or vegetation, and that nothing has been installed near it that could skew the reading, such as a new barbecue or a ventilation outlet.

Why AirGreen

AirGreen Inc. is a family-owned HVAC company established in Montreal for more than 15 years, holding an RBQ licence, with a showroom in Boucherville. We install central and wall-mounted heat pumps and dual fuel systems, and we configure the controls so that every accessory is genuinely useful.

For the purchase and professional installation of the Trane BAYSEN01ATEMPA outdoor sensor, contact AirGreen. We serve Montreal, Laval, Longueuil, the North Shore and the South Shore.