VECTOR 6-Ш-6-П-С Heating Mixing Control Unit for Air Curtains and Air Heating Units

The VECTOR 6-Ш-6-П-С is a compact factory-assembled mixing control unit from the VECTOR series manufactured by VEZA. It is designed for discrete (ON/OFF) control of thermal output in hydronic systems serving air curtains and air handling units. The unit is part of scheme No. 6 in the VECTOR lineup, which provides two-position (open/close) regulation of the coolant flow.

This model uses a 2-way ball valve (Ш = ball valve) as the control element, driven by an electric actuator that operates on a 24 V DC power supply. The actuator receives an ON/OFF control signal (open/close), allowing for binary control of the flow rate. The unit is equipped with a bypass line with a shut-off valve, which can maintain a constant minimum flow (up to 10% of the nominal flow) through the consumer's installation even when the main circuit is fully closed.

The mixing control unit is designed for right-hand connection to the consumer (П = right-hand side) and comes in a standard configuration (С = standard). It is certified to meet the requirements of the Customs Union Technical Regulation TR CU 010/2011 “On the Safety of Machinery and Equipment”. This unit is an ideal solution for applications requiring reliable, discrete control of air curtains and air heating units.

Key Features and Benefits

• ON/OFF Flow Control (Scheme No. 6): Provides simple and reliable two-position regulation, where the heat output is either fully on or fully off. This makes it particularly suitable for air curtains, door heaters, and other applications where a modulating control signal is not required.

• 2-Way Ball Valve (Ш): The unit utilizes a robust 2-way ball valve as the control element. When combined with an ON/OFF electric actuator, this valve ensures a tight seal when closed and a minimal pressure drop when fully open.

• Integrated Bypass Line: The inclusion of a bypass line with a manual shut-off valve is a key feature. It allows a small, constant flow of coolant (up to 10% of the nominal flow) to circulate through the consumer's unit even when the main control valve is fully closed. This prevents the pump from running against a dead head and protects the system from damage or freezing in cold climates.

• High Flow Capacity (Kvs 10.0 m³/h): The unit’s size No. 6 is characterized by a flow coefficient (Kvs) of 10.0 m³/h. This indicates a significant flow capacity, making the unit suitable for medium-sized heating applications. The term Kvs is defined as the flow of water in cubic meters per hour (m³/h) at a pressure drop of 1 bar.

• Robust Construction and Compliance: The VECTOR series units are built with industrial-grade components to ensure long-term reliability on critical infrastructure projects. The complete unit is certified for compliance with TR CU 010/2011, confirming its safety for use in machinery and equipment.

• Factory-Assembled and Tested: Delivered as a fully pre-assembled unit, the VECTOR 6-Ш-6-П-С significantly reduces on-site installation time, eliminates potential assembly errors, and ensures consistent quality.

Technical Specifications

Model Code Breakdown

The model designation VECTOR 6-Ш-6-П-С encodes the unit's configuration:

Applications

The VECTOR 6-Ш-6-П-С mixing control unit is specifically designed for applications requiring discrete, two-position control of coolant flow:

• Air Curtains: Controlling the heat supply to air curtains installed at building entrances. The ON/OFF action can be triggered by a door contact or a building management system (BMS) signal.

• Air Handling Units (AHUs): Managing the heating output of a unit's water heating coil in a simple two-stage or ON/OFF control strategy.

• Industrial Door Heaters: Regulating the thermal output of air heaters located above large industrial doors or gates.

• Standby Heating Systems: Providing an additional, fully controllable heating source that can be activated only when needed.

Why Choose the VEZA VECTOR 6-Ш-6-П-С?

The VEZA VECTOR 6-Ш-6-П-С mixing control unit offers a robust, ready-to-install solution for discrete control of hydronic heating systems, particularly for air curtains.

1. Targeted ON/OFF Control: The unit is specifically designed for scheme No. 6, which provides straightforward and highly reliable two-position (open/close) flow regulation, making it the ideal choice for applications that do not require modulating control, such as air curtains.

2. Industrial-Grade Reliability: Manufactured by VEZA, a company with over three decades of experience in climate control equipment, this unit is built with industrial-grade components and designed for demanding applications.

3. Operational Safety with Bypass: The integrated bypass line is a crucial feature that prevents the circulation pump from operating against a fully closed valve, ensuring system safety, reducing wear on components, and maintaining a minimum flow to protect against freezing in cold climates.

4. Simplified Project Execution: As a factory-assembled unit, it arrives on-site ready for installation, drastically cutting down on labor costs, reducing the risk of assembly errors, and speeding up project completion.

5. Clear and Consistent Quality: The unit is certified according to TR CU 010/2011, guaranteeing that it meets strict safety standards for machinery and equipment used across the Eurasian Economic Union.

Important Note: The VECTOR 6-Ш-6-П-С is a specialized unit for ON/OFF control. The 24 V DC actuator requires a compatible control signal from a thermostat, PLC, or BMS. It is designed for indoor installation within a dry, enclosed control panel. Always verify compatibility with the manufacturer’s nameplate and official documentation for the specific device. Installation and electrical connection must be performed by qualified personnel in accordance with local safety regulations.