Fan Coil & HVAC Control

ECx Light 4 DALI

The ECx Light S4 DALI Expansion Modules are microprocessor-based interfaces that extend the number of inputs and outputs.

Provided by the ECLYPSE™ Connected System Controllers, ECLYPSE Connected VAV Controllers, ECL/ECB-PTU Series controllers, and ECL/ECB-VAV controllers.


These controllers use the LonTalk® communication protocol and are LonMark certified.


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When connected to one of these HVAC programmable controllers, each expansion module can control up to 4 DALI buses (typically 16 ballasts)

As part of the Smart Room Control solution, the ECx-Light-4DALI expansion module can be freely combined with ECx-Light-4/4D lighting modules and ECx-Blind-4/4LV sunblind modules to control up to 8 light groups or DALI buses, and 8 shade / sunblind motors.

  • The ECx-Light Expansion Modules operate off of a separate sub-network bus (governed by the main HVAC controller). This optimizes the control possibilities while allowing such a modular solution (HVAC controller + expansion modules) to be interpreted as a single device by the network, thereby avoiding unnecessary system overloading.
  • In addition, by positioning the expansion modules directly in ceilings, close to the lights, the installation effort is reduced. As well, connecting the module to the main HVAC controller through a single RJ-45 cable reduces wiring costs and minimizes the risk of errors.
  • Custom program the ECx-Light expansion modules directly when configuring the main HVAC controller using EC-gfxProgram. This allows you to quickly and easily create your own control sequences capable of meeting the most demanding requirements of any engineering specification.
  • Moreover, the internal electronics being powered by the host controller, the lighting load consumption can easily be monitored, allowing for energy counting, and allowing the supervisor to instantly detect abnormal power usage and anticipate bulb maintenance as part of a proactive preventive maintenance program.


  • Unique DALI broadcast technology, eliminating the need for DALI addressing and commissioning for fast and easy integration.
  • Complete disconnection from mains (ballast power supply and DALI buses) when all DALI commands are off allows for further energy savings
  • Smart management of DALI buses (runhours counter, lamp failure detection,…) saves maintenance times and costs
  • Only one connector per DALI output (ballast power supply and DALI buses) reduces installation and wiring costs while reducing the risks of errors.
  • Fail-safe mode to comply with most regulation requirements
  • Embedded power supply eliminates the need for an external power supply to power the controlled device, minimizing installation time and cost.
  • Same wiring architecture as the ECx-Light-4D expansion modules, to convert easily 1-10V dimming lighting projects into DALI lighting projects.
  • A wide range of lighting and shade / sunblind expansion modules that enables smart cross-management of HVAC, lighting, and shades / sunblinds as a whole, creating a unique Smart Room Control solution
  • The main HVAC controller and its associated expansion modules form a single device on the network that reduces network traffic and facilitates BMS integration.
  • Quick-link connectors for direct installation into the ceilings, or traditional detachable connectors for use with optional strain reliefs and terminal block covers. This may eliminate the need for a protective enclosure in some jurisdictions.

The Smart Room Control solution combines a main HVAC Controller with expansion modules dedicated to lighting and sunblind management to form a modular solution that uses a single point on the network.

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