Successful integration projects

Learn about real stories from our customers and how Intesis gateways make integration easy

Case Studies

Learn about the projects that are now using our solutions

HVAC integration - Consyst

HVAC integration in 280 rooms

Room level integration of 280 AC units with a local controller.

Intesis AC interface for HITACHI to Modbus
Roomers Munich

“For this project we needed the reliability of Intesis products to ensure proper operation of the system. The approval of the products by HITACHI was a key quality aspect”

Managing Director at Consyst Limited UK
Lior Golani, Managing Director

INMBSHIT001R000 GatewayBenefits:

  • Reliable integration of the AC system.
  • Simple installation and fast commission.
  • Enables comfort and energy savings.

Reliable control of the AC units

Roomers, a premium hotel chain selects Intesis AC interfaces for the integration of HITACHI air conditioning units with the room controller. 

In a 5-star luxury hotel in Munich with 280 rooms and suites, the owner chose Intesis AC interfaces for the integration of HITACHI air conditioning units to a local room controller and with a third-party premium design thermostat.

Roomers was looking for a robust and reliable solution to meet their guests’ high expectations (e.g. C-level business executives, air crews and professionals). It was outmost important to ensure a fast commissioning since the hotel was already in operation in order to have the rooms available in the shortest time possible. Therefore, the simplicity of the installation was a key aspect for the tenant.

Additionally, the seamless integration of the HITACHI AC units with the room controller to obtain the best possible performance (i.e. low-noise operation and optimal temperature control for maximum comfort) was a strong prerequisite for the solution they were looking for. Another important aspect was to ensure a fast reaction time since their guests expect the aircon unit to start working as soon as they press the button.

Intesis individual AC interface for HITACHI to Modbus was the perfect choice for Roomers to fulfill all the project requirements.


“Intesis products were the right choice to meet the project deadlines with minimal disruption to the hotel operations thanks the fast and simple installation process.”

Noam Sade, Project Manager on behalf of Roomers


How it works


Intesis Air Conditioning interfaces build up a portfolio of highly reliable gateways for HVAC integration, co-developed with all major AC manufacturers, tested and validated by them.

The Hitachi to Modbus AC interface allows fully bi-directional communication between Hitachi VRF systems and Modbus RTU networks, acting as a Modbus slave towards the room controller. It offers monitoring and control capabilities over the common signals of the AC unit such as on/off, temperature setpoint, mode, fan speed and vane position, but it also offers access to advanced internal parameters such as error codes and maintenance information.

Installation is simple on a DIN rail or even wall-mounted. Thanks to its reduced dimensions it takes few space on the electrical cabinet. No external power supply is required since the interface is powered by the AC unit directly. Easy configuration with DIP-switches or via Modbus registers if preferred.


Your best guarantee, more than 700,000 AC units integrated!

Over 700k AC gateways integrated

Solutions sheet

Discover how our integration solutions can help your projects

BACnet gateways for hotels


 Intesis BACnet server gateways and interfaces.


 HVAC system integration.
 Lighting control (DALI).
 Fire detection.
 Integration to standard communication protocols.

Product features:

 Support for BACnet IP and MSTP.
 BBMD and foreign Device
 Notification Classes
 BTL Certified

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Hotels with BACnet system case study
BACnet small-medium projects case study

BACnet gateways for small and medium installations


 BACnet server gateways and interfaces


 Air Conditioner main functions
 - On/Off
 - Mode
 - Set Point
 - Ambient Temperature
 - Error Code
 BACnet IP and BACnet MSTP connectivity.

Product features:

 BACnet IP and MSTP
 BBMD and foreign Device
 Notification Classes
 BTL certified

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Modbus gateways for retail sector


 Intesis Modbus gateways in the retail sector.


 Supervision and control of the AC.
 Real time AC alarm monitoring.
 Temperature limitation.
 Generation of schedules such as opening/closing time protocol integration.

Product features:

 Easy installation
 Great integration flexibility
 Easy and fast integration
 Complete Control of AC

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Modbus store case study
Modbus zoning case study

Modbus AC interfaces for HVAC zoning systems


 Intesis Modbus gateways for zoning systems.


 Unique Modbus register map for all AC Brands
 Bidirectional communication between the zoning system and the AC Unit
 Increase comfort
 Reduction of energy consumption

Product features:

 Easy installation
 Great integration flexibility
 Easy and fast integration
 Complete Control of AC

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AC Interfaces for Data Centre's


Intesis AC Interfaces (AC Brand to KNX, BACnet, Modbus, WIFI).
AC Cloud Control (Intesis Home Cloud APP).


Stable temperature in Data Centre’s, rooms or areas.

• HVAC Integration into BMS/SCADA systems
• HVAC Cloud remote control and monitoring
• HVAC Load Balancing

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Data centre's solution sheet