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Intesis 700 Series Air Integrates HVAC with MQTT
The Intesis 700 Series Air gateways enable secure, bidirectional MQTT communication between multi-indoor HVAC systems and cloud platforms, supporting energy management and IoT-based building architectures.
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The Intesis 700 Series Air with MQTT provides bidirectional communication between multi-indoor HVAC systems and MQTT brokers, enabling integration into cloud-based energy management systems, building management platforms and OEM digital service ecosystems. The solution addresses the growing demand for standardized, secure and scalable HVAC connectivity within Industrial Internet of Things (IIoT) environments.
MQTT for Cloud-Connected HVAC
As HVAC systems increasingly connect to cloud platforms for monitoring, analytics and energy optimization, reliable IoT-aligned communication protocols are required. MQTT has become widely adopted due to its lightweight publish/subscribe architecture, scalability and compatibility with major cloud infrastructures.
In building environments, HVAC systems can account for more than 40 % of total energy consumption. While remote management in energy projects is commonly implemented via MQTT, HVAC control has often remained isolated. The 700 Series Air gateways extend MQTT integration to indoor climate systems, enabling centralized operational data access and remote control.
Typical objectives include:
- Centralization of distributed HVAC data
- Remote diagnostics and preventive maintenance
- Cybersecurity compliance in cloud-connected systems
- Reduced commissioning time
- Scalable multi-site deployment
Secure Communication and Operational Reliability
The gateways support MQTT over TCP (port 1883) and MQTT over TLS (port 8883), allowing encrypted communication via SSL/TLS certificates. Certificate management can be performed remotely, minimizing on-site service interventions.
To ensure robust operation in real-world networks, the implementation includes:
The gateways support MQTT over TCP (port 1883) and MQTT over TLS (port 8883), allowing encrypted communication via SSL/TLS certificates. Certificate management can be performed remotely, minimizing on-site service interventions.
To ensure robust operation in real-world networks, the implementation includes:
- QoS 0 and QoS 1 support for configurable delivery assurance
- Persistent sessions to retain subscriptions and queued messages after connectivity interruptions
- Retain flag functionality to deliver the last known state to new subscribers
- Last Will and Testament (LWT) for automatic disconnection notification
These mechanisms help maintain system visibility and control even under unstable network conditions.
Unified Data Model for Integration Efficiency
The 700 Series Air gateways publish predefined MQTT topics using a standardized variable structure independent of the HVAC brand. This unified data model reduces integration complexity and minimizes custom mapping when connecting to cloud platforms.
The device operates as both publisher and subscriber. It transmits operational parameters such as operating mode, fan speed, temperature setpoints and system status, while receiving control commands from external applications.
A built-in bus scan function automatically detects connected indoor units and available data points, accelerating commissioning and reducing configuration errors. Only required signals can be enabled, limiting broker traffic and optimizing bandwidth usage.
Multi-Brand Compatibility
The 700 Series Air platform supports multiple HVAC brands and models using a single hardware architecture. This simplifies inventory management and reduces compatibility risks in projects involving different manufacturers or phased rollouts.
The gateways are compatible with leading MQTT brokers and cloud environments, including implementations based on Microsoft Azure, Amazon Web Services and standard Mosquitto brokers.
Enabling Cloud-Based HVAC Architectures
By integrating structured MQTT communication with secure transport and multi-brand support, the Intesis 700 Series Air serves as an interface layer between indoor HVAC equipment and cloud-native building management systems. The solution supports the transition from isolated control networks to scalable, IoT-enabled HVAC infrastructures aligned with modern energy management strategies.
Unified Data Model for Integration Efficiency
The 700 Series Air gateways publish predefined MQTT topics using a standardized variable structure independent of the HVAC brand. This unified data model reduces integration complexity and minimizes custom mapping when connecting to cloud platforms.
The device operates as both publisher and subscriber. It transmits operational parameters such as operating mode, fan speed, temperature setpoints and system status, while receiving control commands from external applications.
A built-in bus scan function automatically detects connected indoor units and available data points, accelerating commissioning and reducing configuration errors. Only required signals can be enabled, limiting broker traffic and optimizing bandwidth usage.
Multi-Brand Compatibility
The 700 Series Air platform supports multiple HVAC brands and models using a single hardware architecture. This simplifies inventory management and reduces compatibility risks in projects involving different manufacturers or phased rollouts.
The gateways are compatible with leading MQTT brokers and cloud environments, including implementations based on Microsoft Azure, Amazon Web Services and standard Mosquitto brokers.
Enabling Cloud-Based HVAC Architectures
By integrating structured MQTT communication with secure transport and multi-brand support, the Intesis 700 Series Air serves as an interface layer between indoor HVAC equipment and cloud-native building management systems. The solution supports the transition from isolated control networks to scalable, IoT-enabled HVAC infrastructures aligned with modern energy management strategies.
