Freeze Protection Thermostat ANDFST-0,6 with freeze-protection switch is used for downstream temperature control of water-air heaters in ventilation and air-conditioning system in order to prevent frost damage.
The ANDFST-0,6 freeze protection thermostat with switch features:
- a remarkably small differential gap,
- high reproducibility,
- and an automatic reset function.
Freeze protection thermostats are essential components in HVAC systems, particularly in regions where subzero temperatures are common. These thermostats are designed to prevent pipes, coils, and other critical components from freezing, which could otherwise lead to costly damage and system failures.
By monitoring ambient or surface temperatures, freeze protection thermostats activate heating elements, such as trace heaters or preheat coils, when temperatures approach freezing thresholds. This ensures that water and other fluids within the HVAC system remain in a liquid state, safeguarding the system’s functionality during cold weather. Their role is particularly vital in commercial and industrial buildings with extensive ductwork or exposed piping that are prone to temperature fluctuations.
In addition to preventing damage, freeze protection thermostats enhance energy efficiency and operational reliability.
Andivi’s ANDFST-0,6 model is equipped with advanced sensing technology and programmable features, allowing precise temperature control and minimizing energy consumption by activating heating only when necessary. This functionality is especially beneficial in HVAC systems for green buildings, where sustainability is a priority.
Their integration into building automation systems further enhances their effectiveness, allowing remote monitoring and control, which is invaluable for facilities management teams overseeing large-scale HVAC systems.
Product number
Product number: ANDFST-0,6
Technical Specifications
Switching capacity: | 250 VAC, 10(6)A; Signal voltage due to the gold-plated connectors |
Adjustment range: | -10 °C … +15 °C |
Factory setting: | +5 °C |
Differential gap: | 2 ± 1 K |
Reproducibility: | ± 0,5 K |
Length of capillary tube: | 600 mm |
Reset: | automatic |
Mounting position: | variable |
Electrical connection: | up to 2.5 mm² at microswitch |
Cable inlet: | cable glands M16 x 1.5 |
Protection class: | IP65 |
Max. Operating temperature: | +70 °C |
Min. Operating temperature: | w + min. 2 °C |
Storage temperature: | -30 °C … +70 °C |
Datasheet ANDFST-0,6
ANDFST-0,6 Freeze protection Thermostat – Switching Use Cases
- Automatically activates auxiliary heating elements (e.g., electric heat tapes, hot water pumps) during freezing conditions.
- Triggers alarms or shuts down non-essential systems to prioritize critical freeze protection.
- Controls heat exchangers or glycol systems in industrial applications to prevent liquid line freezing.
- Manages zone valves or initiates boiler operation in residential and commercial HVAC systems.
- Ensures preventive measures and efficient resource allocation to optimize system performance.
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