SOFREL S4TH remote controllers for HVAC systems

The SOFREL S4TH range of remote controllers brings together all of LACROIX‘s expertise in telecommunications, HVAC regulation, and cybersecurity.

With SOFREL S4TH, we offer an innovative, industrial solution fully dedicated to energy management.

Designed to meet the needs of heating market players, SOFREL S4TH comes with a complete ecosystem that simplifies the management of multiple installations while ensuring network cybersecurity.

Remote management and regulation in a single device to simplify the operation and management of energy networks and HVAC systems

SOFREL S4TH remote regulation for heat networks and HVAC systems

S4TH includes numerous built-in energy management functions, eliminating the need for complex programming or configuration:

Operating reports
Calendars
Alarm forwarding
Inter-site communication
Data timestamping at the source

Additionally, S4TH features a powerful automation workshop, providing great flexibility to meet various use cases. It relies on standard programming languages (ST, Ladder, Function Blocks, Grafcet) and includes testing and simulation tools.

S4TH features an extensive heating library with numerous industry-specific function blocks:

Control programs
Heating curves
Boiler cascade management
Wireless sensor connections

These documented function blocks are designed by our HVAC systems experts. Easily adaptable, they help users save time when deploying the product on their installations.

Thanks to the automation workshop, operators can also create their own function blocks and apply them across all their boiler rooms or substations.

Modular and scalable HVAC remote controllers to adapt to any type of installation

Depending on the enclosure model, S4TH units, despite their compact size, can integrate a 2G/3G/4G modem as well as various communication ports (USB, Ethernet, RS232, RS485…). They feature 8 AI T° inputs, 8 DI inputs, 4 AO outputs, and 4 DO outputs.

To support system expansion, up to 10 I/O extension modules can be added, increasing their capacity.

Integrated cybersecurity within a connected ecosystem

Offering fully IP-based remote management with real-time functionality addresses the growing demand from operators for connected networks. In exchange for the connectivity and flexibility provided by the internet, cybersecurity has been a top priority for our engineering teams. In response to this critical concern, the S4TH, supported by its ecosystem, integrates a high level of protection and security:

User and connected system authentication,
Encryption of communications,
Electronic certificates,
Access traceability…

Security begins with SG4000, a VPN server designed to manage and secure communications. The centralized management tool, LX CONNECT, facilitates user and configuration management of the network, ensuring control over equipment versions and access rights.

Additionally, LX CONNECT handles the automatic renewal of electronic certificates via a Microsoft PKI, ensuring ongoing security and compliance.

HVAC remote controllers with native functions to integrate and control all your energy installations and equipment

From data acquisition and complete boiler regulation to monitoring the energy performance of buildings…, SOFREL S4TH is the ideal remote control tool for managing all your buildings and HVAC installations.