Avansa 110 S

Product detailed description

The AVANSA 110 S is commonly used in residential and commercial solar thermal installations to regulate the operation of collector and circulation pumps. It is typically installed in systems where temperature-controlled fluid circulation is required, such as in solar water heating systems. The device ensures efficient heat transfer by activating the pump when the temperature difference between the collector and the reservoir meets the set hysteresis. Installers working with solar thermal systems will find this thermostat essential for optimising system performance and energy efficiency.

Its design allows for straightforward integration into existing systems, making it suitable for both new installations and retrofit projects. The thermostat is intended for use in environments with ambient temperatures ranging from -10 to +50 °C, making it suitable for a wide range of climates. It is particularly useful in systems where precise temperature control is required to prevent overheating and ensure consistent operation of the circulation pump.

Technical parameters

Weight	0.15 kg
Code	AVANSA 110S
Brand	AVANSA

The thermostat operates on a 230V 50Hz supply and can switch a load up to 6A. The temperature measurement range extends from 0 to 150 °C, allowing for accurate monitoring of both collector and reservoir temperatures. The hysteresis for the reservoir can be adjusted between 10 and 30 °C, which is critical for determining the pump's on and off cycles. These parameters are essential for selecting the correct thermostat for a given system and ensuring compatibility with the electrical and thermal requirements of the installation.

Installation and connection

Installation of the AVANSA 110 S requires connecting the device to the collector and reservoir temperature sensors. The tank temperature sensor has a length of 3 m, while the boiler temperature sensor is 1.2 m. Ensure that the sensors are correctly positioned to accurately reflect the temperature of the respective components. The thermostat must be connected to a 230V power supply and wired to the pump control circuit. During installation, verify that the ambient temperature at the installation site is within the specified range and that the wiring is secure and insulated to prevent short circuits. A common mistake is incorrect sensor placement, which can lead to inaccurate readings and inefficient pump operation.

Compatibility and accessories

The AVANSA 110 S is compatible with standard solar collector and circulation pump systems that operate on 230V and support temperature-based control. It is designed to work with sensors of the specified lengths and temperature ranges. When installing the thermostat, ensure that the pump and sensors are compatible with the thermostat’s switching current and temperature measurement capabilities. No additional accessories are required for basic operation, but it is recommended to have spare sensors on hand for maintenance purposes.

Technical background for designers

The AVANSA 110 S operates by comparing the temperature of the solar collector with that of the reservoir. When the temperature difference exceeds the set hysteresis, the pump is activated to circulate the fluid. The thermostat uses a fixed 10 °C difference between the on and off hysteresis settings to ensure stable operation. This design helps prevent short cycling and ensures that the pump runs only when necessary. The device is built to withstand a wide range of ambient temperatures, making it suitable for both indoor and outdoor installations. The materials used are selected for durability and resistance to environmental factors, which contributes to the device’s long service life and reliability in solar thermal systems.

Service and operation

Regular inspection of the thermostat and its sensors is recommended to ensure accurate temperature readings and proper pump operation. Check for any signs of wear or damage to the wiring and connections. If the pump does not respond to temperature changes as expected, verify the hysteresis settings and sensor placement. No scheduled service intervals are specified in the technical data, but periodic checks are advisable to maintain system performance. In the event of a malfunction, the thermostat should be disconnected from the power supply before any troubleshooting or replacement is carried out.

Frequently asked questions

Can the AVANSA 110 S be used with multiple solar collectors?
Yes, the thermostat can be used with multiple collectors as long as the temperature sensors are correctly positioned and the pump is capable of handling the required flow rate.

Is it possible to adjust the hysteresis manually?
Yes, the hysteresis can be adjusted manually within the specified range of 10 to 30 °C to suit the specific requirements of the installation.

Can the thermostat be installed in a location with high humidity?
Yes, provided the ambient temperature remains within the specified range and the installation is protected from direct exposure to moisture.

What happens if the temperature sensors are swapped?
If the sensors are swapped, the thermostat will not function correctly and may cause the pump to operate in the wrong sequence or not at all.