S-BUS to RS232 Module for Cool Master / VRV VRF enables seamless communication between S-BUS based HVAC systems and RS232 controllers. Designed for reliable integration, it allows centralized monitoring, control, and automation of VRV/VRF air conditioning systems.

The S-BUS to RS232 Module for Cool Master VRV/VRF Integration (G4) is a protocol conversion device designed to seamlessly connect G4 automation systems with Cool Master VRV/VRF air conditioning units. It enables two-way communication between the automation controller and HVAC systems, ensuring precise temperature control, mode switching, and status monitoring.

Engineered for plug-and-play integration, the module translates S-BUS commands to RS232 signals, allowing centralized control of multiple indoor AC units from a single platform. With compact design and reliable performance, it is ideal for residential, commercial, and hospitality automation projects.

Key Features

• Converts S-BUS commands to RS232 protocol
• Fully compatible with Cool Master VRV/VRF systems
• Two-way communication for control and feedback
• Supports temperature setpoint, mode, and fan speed control
• Compact DIN-rail or panel-mount design
• Plug-and-play integration with G4 automation
• Reliable and low-latency operation
• LED indicators for power and communication status

Applications

• Smart home HVAC integration
• Hotel room centralized AC control
• Office buildings with VRV/VRF systems
• Commercial complexes requiring unified HVAC automation
• Multi-zone temperature management in large installations

Technical Specifications – S-BUS to RS232 Module (G4)

• Input Protocol: S-BUS
• Output Protocol: RS232
• Compatibility: Cool Master VRV/VRF systems
• Input Voltage: 12–24 V DC
• Mounting: DIN-rail or panel mount
• Indicators: Power, TX, RX LEDs
• Operating Temperature: 0°C to 50°C
• Enclosure: Durable ABS housing
• Certifications: CE, RoHS