Trane ComfortLink II Zoning system

Trane ComfortLink II HVAC Zoning System

A zoning system sets up zones in a home or business that can be heated or cooled using separate controllers. This is particularly important for multi-level buildings with heating and cooling issues, and can improve comfort and the HVAC system's efficiency.

What are the benefits of zoning your home with Trane's System?
  1. Optimize temperature and humidity thereby improving comfort and efficiency
  2. obtain real-time diagnostics through Nexia
  3. Control and integration with a range of smart devices

Trane’s ComfortLink II Zoning system lets you control your system; set a schedule based on your home’s unique temperature patterns, and control it all from wherever life takes you with the exclusive Nexia system. The Nexia system allows you to connect a variety of smart devices. Every ComfortLink II Control comes with remote “climate access,” allowing you to monitor and control your zoning system through any web-enabled device.

ComfortLink II Zoning system includes: Trane ComfortLink II Control (XL1050, XL850 and XL824), wireless and wired zone thermostat/sensors and motorized modulating dampers.

ComfortLink II Control Zoning Setup

diagram of comfortlink zoning control

A zone panel such as the ZZONEPNLAC52ZB is used to monitor up to 4 zones whereas the ZZONEEXPAC52ZB Zone Expander expands the maximum number of zones per system to eight. All these work together to provide harmonized comfort in your household.

Trane ComfortLink II Control

trane comfortlink thermostat


It is at the heart of the zoning system and it provides the interface to the system and user comfort. Trane’s ComfortLink II Zoning system lets you set a schedule based on your home’s unique temperature patterns and control it all from wherever life takes you with the exclusive Nexia system. Every ComfortLink II Control comes with remote “climate access”, allowing you to monitor and control your zoning system through any web-enabled device

Wired Zone Thermostats/ Sensors

Temperature data of individual zones is communicated to the Comfortlink Control for temperature adjustment.
The sensors used include; ZZSENSAL400 Remote Indoor Temperature Sensor, ZSENS930 temperature and Humidity Sensor and TZONE940 Wired Touchscreen Thermostat/Zone Sensor.

trane wired zone thermostat

TZONE940 acts both as a sensor and a thermostat letting you monitor and adjust the temperature in one specific zone. This can further share data with the ComfortLink II thermostat which can act as the master zone control ensuring consistent, even comfort in each zone.

trane sensor

The ZZSENSAL400 Remote Indoor Temperature Sensor monitors temperature within a specific zone, while only allowing temperature adjustments at the Communicating system control. This is ideal for a kid’s room or the hallway. When the sensor indicates the need, heated or cooled air is directed to the necessary zone for unparalleled comfort.

In place of the on-board sensor, the ZSENS930 (ZSENS930AW00MA) wireless temperature and humidity sensor can be used to remotely sense temperature and humidity. This may as well be used to sense and display temperature and humidity on the Nexia smart home portal and mobile app.

Motorized Modulating Dampers
motorized modulating dampers
Dampers are valves that regulate airflow inside ducts by allowing air to be redirected to specific areas of the home. All these work together to monitor temperature and humidity with zoning equipment to perfectly match Trane’s variable-speed indoor unit.

Other relay and zone panels are available here.

For custom HVAC control solutions, feel free to  contact  our HVAC Control Engineering team for assistance or learn more on our  HVAC Controls  website.

    • Related Articles

    • Trane ComfortLink II Zoning System

      Trane’s ComfortLink II Zoning system lets you set a schedule based on your home’s unique temperature patterns and control it all from wherever life takes you with the exclusive Nexia system. Every ComfortLink II Control comes with remote “climate ...
    • HVAC Zoning System (Why You Need It for Your Home)

      HVAC zoning allows each room/ zone to have the ideal temperature controlled by its own thermostat. Zoned HVAC systems regulate the temperatures for increased efficiency and comfort. Dampers are mounted inside the ducts redirecting and regulating the ...
    • Trane Sensors Temperature Averaging

      There are two configurations used for temperature averaging: Setting up a thermostat that reads separate sensors and averages the temperature itself using its software Wiring sensors in averaging setup, series/parallel Temperature averaging is ...
    • Ion Zoning Systems and Control

      Ion zoning systems have been designed for control and operation of select models of compatible fan coils, variable speed furnace and other hvac communicating equipment. Consider the image below for carrier's Ion Infinity zoning system with its ...
    • Trane Home App

      The Trane Home App enables home owners to monitor and control connected Trane air conditioners and smart home components from anywhere in the world. Some of home automation application components include lights, cameras, garage doors, locks and ...