Did You Know?

Matthew Bail | April 26, 2018

The Nice/ELAN CoolMasterNet Driver provides a simple solution for VRF HVAC integration (Daikin, Mitsubishi, Toshiba, Fujitsu, LG, Hitachi, Gree, and many more)


We know that integration with VRF HVAC can be a daunting, but to help save you the trouble, Nice/ELAN has developed a driver for the CoolMasterNet universal communication bridge that will help you integrate virtually any VRF brand.

To help you get started with VRF HVAC integration let’s first understand some basics about VRF (Variable Refrigerant Flow):

Considered to be the top of the line for air conditioning systems, VRF has a sophisticated built-in communication system which allows cooling or heating at a precise temperature, along with energy preservation consumed by the air conditioner. There is a lot to know about VRF HVAC system components (Learn More About VRF on the CoolAutomation website) but what’s important to note is that it is a closed communication system, designed by HVAC manufacturers specifically for each brand, which is what makes integration so difficult.

CoolMasterNet allows you to skip the less important HVAC technical details and focus on what you need to achieve, HVAC control through the Nice/ELAN control platform.

CoolMasterNet Features:

  • Universal gateway to all VRF HVAC
  • Plug & play installation
  • A robust solution that always works
  • Simple wiring and set up

CoolMasterNet Benefits:

  • AutoDetect of all HVAC system components
  • Minimal to no set-up of HVAC components
  • No need for an HVAC professional integration
  • Connect any VRF with one device, even if you have more than one HVAC brand installed
  • Online remote support access to the installation site

By connecting CoolMasterNet to VRF communication lines you can*:


  • Operation state (ON/OFF)
  • Operation MODE (Cool/Heat/Fan)
  • Temperature set point
  • Fan speed


  • Status of the operation state, mode, set point and fan speed
  • Filter cleaning status
  • System error code
  • Room temperature

*All device features may not be available in Nice/ELAN. Please check the Nice/ELAN Coolmaster integration notes.

So, if you want full control over your VRF HVAC integration time, consider the CoolMasterNet solution with Nice/ELAN.

Feel free to contact CoolAutomation with your HVAC equipment list and they will help you find the best solution for your project.