0
Your cart0 Products
There are no products yet
Đại diện ngành sản xuất phụ kiện hệ thống MEP tại Việt Nam

NEWS

What is a VAV Box?
28/06/2025
Share
Đã copy link
Once reliant on imports, Vietnam now produces high-quality VAV boxes locally. STARDUCT proudly stands as Vietnam’s first and only VAV manufacturer certified by AHRI 880—one of just 57 globally.

What is a VAV Box? Why It’s the Beating Heart of Your HVAC System

Optimizing air control isn’t just about comfort—it’s about efficiency, sustainability, and smart building evolution. Discover how VAV systems are transforming modern HVAC design.

1. What Is a VAV Box?

VAV stands for Variable Air Volume, referring to HVAC systems that adjust the airflow based on actual demand. A VAV box sits between the AHU (Air Handling Unit) and the final air outlet, and is responsible for:

  • Adjusting airflow for each individual zone
  • Stabilizing room temperature accurately
  • Enhancing overall system performance

> Unlike CAV (Constant Air Volume) systems with fixed output, VAV provides airflow flexibility based on thermal loads—minimizing fan energy consumption and maximizing user comfort.

2. How Does It Work?

Each VAV box communicates with a temperature sensor or the Building Automation System (BAS):

  • When room temperature reaches the set point, the actuator adjusts the internal damper to reduce airflow
  • Some boxes include reheat coils for finer temperature control, especially in cool zones

Think of the VAV box as the heart valve of the HVAC system—regulating the perfect “pulse” of airflow into each room.

3. Why Is It the Future?

Criteria

CAV

VAV

AirflowFixedVariable (based on demand)
Energy Savings No Yes
User ComfortLowHigh
Suitable for Modern BuildingsLimitedExcellent Fit

VAV systems are now the go-to solution for:

  • High-rise buildings
  • Smart offices
  • Airports, hospitals, and critical infrastructure

They offer:

  • Precision zoning
  • Long-term energy savings
  • Seamless integration with BMS/BAS technologies

4. Vietnam-Made, Globally Certified

Once reliant on imports, Vietnam now produces high-quality VAV boxes locally. STARDUCT proudly stands as Vietnam’s first and only VAV manufacturer certified by AHRI 880—one of just 57 globally.

  • Strict testing for airflow, noise levels, and air-tightness
  • Approved for use in both domestic and international projects

Ready to Breathe Smarter?

Whether you're designing a green office, upgrading an HVAC system, or specifying for a major project, STARDUCT VAV Boxes bring international-grade efficiency—Made in Vietnam. Engineered for the future.

/images/logo.png
Related Articles
28/06/2025
What is a VAV Box?
21/06/2025
AHRI Certified® mark for its Starduct VAV Box products
04/10/2024
VAV (Variable Air Volume) – Operating Principle
07/03/2025
ISO 21925 và EN 1366 TIÊU CHUẨN NÀO PHỔ CẬP HƠN ?
28/06/2025
What is a VAV Box?
14/09/2022
AMCA ASIA MEETING IN HCMC, VIETNAM
14/09/2022
AMCA ASIA MEETING IN HCMC, VIETNAM
21/06/2025
ABOUT STAR ASIA JSC
Success
Add to cart successfully
Success
Logged in successfully
Fail
null
Fail
Please login to view details!