NIBE VST 20 Hot Water Control

Description

NIBE VST 20 is a high-performance diverter valve and motor-driven control unit designed to control hot water preparation in properties with NIBE heat pumps. By automatically prioritizing and directing the heating water to double-jacketed water heaters or accumulator tanks, the valve guarantees a stable supply of hot tap water while maintaining the overall energy efficiency of the heating system.

Key features and benefits

• Prioritized hot water production: Automatically switches between the property's regular heat distribution and hot water charging, minimizing heat loss and ensuring even water temperature.
• High capacity for larger systems: Adapted for systems with a charging power of up to 40 kW and dimensioned with G32 (DN32) internal thread to enable substantial flows without unnecessary pressure drop.
• Compatibility with NIBE heat pumps: Designed for integration with ground source heat pumps in the NIBE Fighter 1320-40 series and air and water heat pumps in the NIBE Fighter 2005-14 series.
• Durable and hard-wearing construction: Manufactured with a robust brass valve body and a reliable composite actuator for long life and safe operation under demanding conditions.

Areas of application and system integration

NIBE VST 20 is ideal for installation in larger villas, apartment buildings or commercial properties where the hot water requirement requires double-jacketed water heaters. The unit is installed directly in the primary circuit and interacts directly with the heat pump's control unit for automatic prioritization of hot water charging.

Operational reliability and manual function

The actuator is equipped with a clear indication and the possibility of manual operation during installation work, maintenance or power-off conditions. The motor-driven control operates smoothly to counteract pressure surges in the pipe system and ensure quiet, problem-free operation over time.

Technical specifications

• Product name: NIBE VST 20 Hot water control
• Pipe connection: G32 (DN32) internal thread
• Maximum charging power: 40 kW
• Electrical data: 230 V
• Main function: Flow control for hot water preparation in double-jacketed tanks
• Color and design: Black and brass
• Material: Brass and durable composite material
• Product type: Control, accessories and spare parts for heat pumps