CoolMasterNet
NOTE: Starting October 1, 2022, CoolMasterNet is replaced by the new CoolMaster Product Line
CoolMasterNet is a device that enables seamless and universal integration of Home Automation and Building Management System with any VRF or VRV HVAC system.
CoolMasterNet provides automation integrators, facility managers, service providers, and HVAC professionals with the ability to control, monitor, service, and manage any VRF or VRV system through the creation of a universal communication channel between the HVAC and automation systems.
CoolMasterNet is a plug & play device. Simply unbox the device and plug into your VRF HVAC System.
CoolMasterNet enables VRF and VRV HVAC connectivity to:
- CoolAutomation suite of applications
- Any Home & Building Automation systems
- IoT Smart Home Devices

Simple Digitalization
HOW DOES IT WORK?
VRF and VRV systems are designed as closed and proprietary communication loops between a condenser and evaporators, and these communication loops will vary from manufacturer to manufacturer.
Traditionally, these HVAC systems could not be controlled or monitored without a brand-specific mediation device from the specific manufacturer, since each manufacturer utilizes a unique communication protocol.
CoolMasterNet enables integration of any VRF or VRV system with Home & Building Automation Systems, Smart Home Devices, and Cloud-Based Remote Control Applications through a seamless and universal communication channel.
This universal communication channel enables Automation Integrators and HVAC Professionals to:
- Natively integrate Home and Building Automation Systems with HVAC
- Integration with the CoolAutomation’s application suite which includes: Facilities Management, Monitoring, Servicing, and Control applications
- Full functionality for the leading Smart Home Device integration (such as Google Home and Amazon Alexa), including voice controls and mobile applications
Simple. Reliable. Universal.
They empower professionals and users across all industries that deal with HVAC systems.
RESIDENTIAL INTEGRATORS
automation systems with HVAC
COMMERCIAL INTEGRATORS (BMS)
Automation Systems with HVAC
Facility Managers
Features
Ethernet, KNX, or physical layers
for all Home Automation brands
ASCII, MODBUS RTU, BACNET MSTP,
BACNET IP, and REST API protocols
for all Home Automation systems
and intuitive configuration
Coolmasternet Documentation
“After integrating VRF systems for 20+ years, the method I choose time and again is through CoolMasterNet. It simplifies the communication to a complex HVAC system, and it allows to control it locally via a home automation system (Crestron, Savant, etc.) and remotely for diagnostics purposes.
We rely on CoolAutomation solutions in high-end residential projects installed by the top-notch HVAC contractors in New York City. The solution never fails!”
“We’ve been using CoolAutomation’s solutions for almost a decade.
Before using CoolAutomation’s CoolMasterNet, the whole HVAC integration process was not efficient, and very time consuming.
As each HVAC manufacturer has its own unique protocol, we had to understand each and every one of those protocols, and write a separate module for each HVAC brand. We also used different adapters (such as BACnet), that sometimes worked well – and sometimes didn’t.
Once we’ve started using CoolMasterNet, everything became easier, simpler, and faster.
Now we’re not concerned with which HVAC brand or model is installed on-site. All we need to do is connect the HVAC to CoolMasterNet, and to the Home Automation controller – and the HVAC is integrated in no time.”