VRV Systems - Principles and Advantages:

VRV (Variable Refrigerant Volume) systems are multi-zone air conditioning systems with variable refrigerant volume. They are used to control the climate in a large number of office and industrial buildings. A VRV system can connect from 2 to over 100 indoor units of various types to a single outdoor unit. Unlike multi-split systems, VRV systems use a common piping network made of copper pipes and refnet distributors in the required sections. This design significantly simplifies installation and allows for the preservation of the building’s facade aesthetics. The inter-unit piping can extend up to 100 meters in length, with a height difference of up to 50 meters without losing power. This flexibility allows the external unit to be placed anywhere according to the building's design.

Today, VRV systems are widely used in luxury apartments and homes thanks to mini-VRV systems. They are also commonly used in offices, hospitals, hotels, and shopping centers.

Advantages of VRV Systems:

• Reliability, Efficiency, and Economy: VRV systems are one of the most advanced centralized air conditioning systems available today, offering high reliability, energy efficiency, and cost-effectiveness, meeting the needs of modern construction and installation companies.

• Branding: The term “VRV” is a registered trademark of Daikin, and it stands for “Variable Refrigerant Volume,” reflecting the principle of how the system works. Other manufacturers such as Mitsubishi, Sanyo, Toshiba, and Fujitsu General also produce similar equipment under the term VRF (Variable Refrigerant Flow). These systems operate with nearly identical refnet distributors, though the product models differ by brand. For example, Daikin uses the refnet distributor model KHRQ22M20T, while Mitsubishi uses CMY-Y-102S-G2.

How VRV Systems Work: VRV air conditioning systems consist of a refrigerant pipeline made of copper pipes and refnet distributors (liquid and gas) that work together. These distributors ensure that air conditioning units can be installed in various rooms as per the building’s design. The pipeline system and high-quality refnet distributors ensure the reliable operation of the system, even distribution of refrigerant to the indoor units, with copper pipe diameters up to 6.3 mm.

Benefits of Refnet Distributors:

• Minimal Resistance and Quiet Operation: The design of the refnet distributors ensures that refrigerant flow generates minimal resistance and operates almost silently.

• Efficient Refrigerant Flow Distribution: The refnet system, paired with electronically controlled valves in the indoor units, ensures uniform distribution of refrigerant between the blocks, even with small diameter pipes.

• Simplified Installation and Enhanced Reliability: The refnet system reduces installation time and increases the system's reliability, ensuring durability over time.

• High Quality and Durability: Refnet distributors are made of high-quality copper, with wall thickness designed to withstand pressures over 35 bar. This ensures the longevity and safety of the entire system.

Custom Manufacturing and Testing: Refnet distributors are manufactured according to customer-specific dimensions and project requirements. The manufacturing process includes rigorous pressure testing to ensure leak-free performance. Our specialists are committed to delivering high-quality, reliable products to ensure that our clients can trust in the performance and longevity of their VRV system installations.

Any engineering or installation company will appreciate the quality of our products, as the refnets are customized according to the provided project, with variable pricing based on the size and diameter of the product.