INMBSACA001I000 – Bosch Commercial & VRF to Modbus RTU Interface for HVAC Control

INMBSACA001I000 – Bosch Commercial & VRF to Modbus RTU Interface for HVAC Control. 

The INMBSACA001I000 gateway by Intesis enables full integration of Bosch Commercial and VRF air conditioning systems with Modbus RTU (RS-485) networks. Designed for HVAC control applications in industrial and commercial environments, it provides bi-directional communication, allowing both control and monitoring of the indoor unit from a centralized BMS, SCADA, or PLC system.

With its compact design (93 x 53 x 58 mm) and versatile mounting options — including DIN rail, wall surface, or even direct integration inside certain Bosch indoor units — this interface is ideal for installations with space limitations or retrofit scenarios. Its rugged enclosure and 36-month warranty ensure long-term reliability in mission-critical installations.

The INMBSACA001I000 acts as a Modbus RTU slave device and supports configuration via DIP switches or Modbus commands, offering flexibility during commissioning. A key feature is its capability to allow simultaneous control via Modbus RTU and the original Bosch IR remote — maintaining full usability for local users.

The gateway supports complete access to the AC unit’s status, operational variables, error codes, and maintenance-related counters such as running hours, which are critical for predictive servicing and energy efficiency. It also includes a window contact input, enabling automatic energy-saving modes — a valuable function for reducing HVAC energy costs in smart buildings.

This solution is ideal for system integrators looking to incorporate Bosch HVAC systems into Modbus RTU environments while maintaining full access to internal logic, monitoring variables, and local override capability.

Key Features:

• Full integration of Bosch VRF and commercial AC units with Modbus RTU (RS-485)
• Bi-directional communication: control and monitoring of indoor unit parameters
• Supports IR remote and Modbus control simultaneously
• Compact size: 93 x 53 x 58 mm – ideal for constrained installations
• DIN rail, wall, or internal unit mounting options
• Window contact input for automatic energy-saving modes
• Access to running hours counter for maintenance alerts
• DIP switch and Modbus configuration support
• Reliable and robust design with CE compliance

Warranty: 36 months

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