Product Line

CoolMaster devices enable integration of Home Automation and Building Management System (BMS) with any VRF or VRV HVAC system.

Key Benefits

Universal interface to all major VRF
HVAC brands
Native out-of-the-box integration with all Home Automation Systems
Standard protocols to integrate with Building Management Systems (BMS)
Intuitive Mobile Applications for remote Control and basic diagnostics
Enables access to CoolAutomation Professional Application suites
Native integration with cloud services such as Google Assistant, Amazon Alexa and more
The CoolMaster product line allows home automation specialists, building automation integrators, facilities managers and HVAC professionals the ability to integrate, control, remotely monitor, service and manage any VRF or VRV HVAC system through a single device.

The devices are Plug & Play and do not require prior technical HVAC knowledge. Simply unbox, ensure it is configured to the right HVAC brand using the built-in display, connect as indicated, and... that’s it...

The product line includes 2 type of devices:

CoolMaster fits most residential and small-medium commercial settings where the number of indoor units is limited.

CoolMasterPro is targeted for large commercial settings that not only have numerous indoor units connected, but also require local access to technical and operational data for commercial building or facility management solutions.

Automatic driver detection and connection to all Home
Automation systems
Connect multiple lines and brands on single device, for sites with physically separated systems
Communication protocols include MODBUS RTU, MODBUS IP, BACNET MSTP, BACNET IP, ASCII and REST API
Touch screen display for local & simple device configuration, including centralized control of the VRF
HVAC system
Configurable I/O’s
Interfaces include RS232, RS485, Ethernet, and KNX (CoolMaster/CoolMasterPro KNX model), for flexible connection with all major Home Automation brands
How it works

VRF and VRV systems design is a closed communication loop between the condensers and evaporators. These communication loops vary from one manufacturer brand to another. Traditionally, controlling and integrating these VRF HVAC systems controls, requires the mediation of a brand-specific interface device, as each manufacturer utilizes its own unique communication protocol.

With CooMaster, you don’t need a separate mediation device for each brand, or to implement a different logic of integration with each of them separately. CoolMaster connects with all brands and provides a universal unified interface for integrating control and monitoring capabilities to your preferred Home Automation or Building Management System.

CoolMaster enables a bi-directional universal communication channel between the VRF HVAC and the automation systems, that enables Automation integrators and HVAC Professionals to:

  • Natively integrate Home and Building Automation Systems with VRF HVAC
  • Connect with the CoolAutomation’s application suite which includes capabilities for Facilities Management, Monitoring, Servicing, and Control of the VRF systems.
  • Connect VRF HVAC systems leading Smart Home Devices, such as Google Home, and Amazon Alexa voice assistant, iot devices and smart thermostats.

CoolMaster vs CoolMasterPro
Market Segment
Residential Medium size commercial
Main Use
Home Automation Integration
Max Connected Units*
Local Access to Advanced Data
Market Segment
Medium to Large Commercial
Main Use
BMS Integration
Max Connected Units*
Local Access to Advanced Data
Maximum number of connected units may change based on limitations of the specific VRF/VRV brand. Connected units include VRF indoor unit, CoolPlugs, sensors, fan coils or any other HVAC units. Please refer to the technical specifications for more details
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