Novus N322S Differential Temperature Controller (12-24V)

Optimise Your Solar Water Heating System with Intelligent Control

The Novus N322S Differential Temperature Controller is the intelligent brain for your solar water heating system. Engineered specifically for solar collectors, this controller automates water circulation between the collector and your storage tank or pool. By precisely monitoring temperature differences, it ensures your system operates at peak efficiency.

With dual control outputs—one for the primary circulation pump and an additional booster output—the N322S gives you comprehensive control. Its built-in protection features actively guard against overheating and freezing, guaranteeing the longevity and reliability of your entire system. This model is powered by a versatile 12-24V supply, making it a flexible choice for various installations.

Key Features & Benefits

• Optimised Solar Efficiency: Measures the temperature difference between the solar collector and the storage tank/pool to activate water circulation only when heat can be effectively transferred.

• Dual Output Control: Features a main control output for the circulation pump and a second booster output, giving you flexible control over your entire system.

• Built-in System Protection: Actively protects your solar system from potential damage with dedicated features to prevent overheating and freezing conditions.

• High-Accuracy NTC Thermistor: Utilises a highly accurate NTC thermistor with a wide measurement range of -30 to +105°C, ensuring precise and reliable temperature readings.

• Configurable Sensor Compensation: A sensor interchangeability error of 0.75°C can be easily compensated for using the controller’s offset parameter, guaranteeing maximum accuracy.

• Versatile Power Supply: This model operates on a 12 to 30 Vdc/ac power supply, making it compatible with a wide range of low-voltage systems.

• Durable & Safe Design: Encased in a robust polycarbonate housing with an IP65 front panel protection, making it resistant to dust and water splashes in harsh environments.

• Compact & Easy to Mount: Its slim, standard panel-mount dimensions (75 x 34 x 75 mm) fit easily into most control panels.

Technical Specifications

Understanding Differential Temperature Control

A differential temperature controller is crucial for the efficiency of a solar water heating system. It works by comparing the temperature of the water in the solar collector to the temperature in the storage tank. When the collector is significantly warmer, the controller activates a pump to circulate the water, drawing heat from the collector and storing it. This process stops when the temperatures equalise, preventing the system from running unnecessarily and potentially cooling the water in the tank.

Ideal Applications

The Novus N322S is the ideal choice for controlling:

• Residential & Commercial Solar Water Heaters

• Swimming Pool Heating Systems

• Booster Systems for Solar Collectors

• Any system requiring two points of temperature measurement for control logic

Get the most out of your solar water heating system. Choose the Novus N322S for intelligent, reliable, and energy-efficient temperature control.