careers icon
23 36 13

Constant-Air-Volume Units

Optimize HVAC Takeoffs with MLEstimation: Seamless Integration with MasterFormat Standards

Integrate your CRM with other tools

Lorem ipsum dolor sit amet, consectetur adipiscing elit lobortis arcu enim urna adipiscing praesent velit viverra sit semper lorem eu cursus vel hendrerit elementum morbi curabitur etiam nibh justo, lorem aliquet donec sed sit mi dignissim at ante massa mattis.

  1. Neque sodales ut etiam sit amet nisl purus non tellus orci ac auctor
  2. Adipiscing elit ut aliquam purus sit amet viverra suspendisse potenti
  3. Mauris commodo quis imperdiet massa tincidunt nunc pulvinar
  4. Adipiscing elit ut aliquam purus sit amet viverra suspendisse potenti

How to connect your integrations to your CRM platform?

Vitae congue eu consequat ac felis placerat vestibulum lectus mauris ultrices cursus sit amet dictum sit amet justo donec enim diam porttitor lacus luctus accumsan tortor posuere praesent tristique magna sit amet purus gravida quis blandit turpis.

Commodo quis imperdiet massa tincidunt nunc pulvinar

Techbit is the next-gen CRM platform designed for modern sales teams

At risus viverra adipiscing at in tellus integer feugiat nisl pretium fusce id velit ut tortor sagittis orci a scelerisque purus semper eget at lectus urna duis convallis. porta nibh venenatis cras sed felis eget neque laoreet suspendisse interdum consectetur libero id faucibus nisl donec pretium vulputate sapien nec sagittis aliquam nunc lobortis mattis aliquam faucibus purus in.

  • Neque sodales ut etiam sit amet nisl purus non tellus orci ac auctor
  • Adipiscing elit ut aliquam purus sit amet viverra suspendisse potenti venenatis
  • Mauris commodo quis imperdiet massa at in tincidunt nunc pulvinar
  • Adipiscing elit ut aliquam purus sit amet viverra suspendisse potenti consectetur
Why using the right CRM can make your team close more sales?

Nisi quis eleifend quam adipiscing vitae aliquet bibendum enim facilisis gravida neque. Velit euismod in pellentesque massa placerat volutpat lacus laoreet non curabitur gravida odio aenean sed adipiscing diam donec adipiscing tristique risus. amet est placerat.

“Nisi quis eleifend quam adipiscing vitae aliquet bibendum enim facilisis gravida neque velit euismod in pellentesque massa placerat.”
What other features would you like to see in our product?

Eget lorem dolor sed viverra ipsum nunc aliquet bibendum felis donec et odio pellentesque diam volutpat commodo sed egestas aliquam sem fringilla ut morbi tincidunt augue interdum velit euismod eu tincidunt tortor aliquam nulla facilisi aenean sed adipiscing diam donec adipiscing ut lectus arcu bibendum at varius vel pharetra nibh venenatis cras sed felis eget.

MasterFormat Division 23 36 13: Constant-Air-Volume Units

MasterFormat Division 23 36 13 covers Constant-Air-Volume (CAV) units, a crucial part of many Heating, Ventilation, and Air Conditioning (HVAC) systems. Understanding CAV units, their functionalities, applications, and best installation practices is essential for anyone involved in the construction and maintenance of buildings.

What is a Constant-Air-Volume (CAV) Unit?

A Constant-Air-Volume (CAV) unit is a type of air handling unit that delivers a constant airflow, hence the name. Unlike Variable Air Volume (VAV) systems that adjust airflow based on demand, CAV units maintain a predetermined airflow regardless of the temperature needs of the space. They achieve this by using a fixed-speed fan and modulating the supply air temperature to meet heating or cooling requirements.

How Does a CAV Unit Work?

A CAV unit draws air from the building or outside, conditions it to the desired temperature and humidity levels, and then distributes it throughout the space. Here’s a breakdown of the process:

  1. Air Intake: The unit draws in air through an intake grille.
  2. Filtration: The air passes through filters to remove dust, dirt, and other particles.
  3. Heating or Cooling: The air is heated by a heating coil (hot water or electric) or cooled by a cooling coil (chilled water or refrigerant) to achieve the desired temperature.
  4. Fan: A fixed-speed fan draws the conditioned air through the unit and distributes it through the ductwork.
  5. Supply Air: The conditioned air is delivered to the designated spaces through supply air diffusers.

Where are CAV Units Commonly Used?

CAV units, while becoming less prevalent than VAV systems, are still used in applications where maintaining consistent airflow is critical. Some common applications include:

  • Hospitals: Operating rooms and other critical care areas requiring strict air quality and pressure control.
  • Laboratories: Environments demanding precise temperature and humidity regulation.
  • Industrial Facilities: Spaces with high heat loads or specific ventilation requirements.
  • Older Buildings: Many older buildings still utilize CAV systems.

What are Installation Best Practices for CAV Units?

Proper installation is paramount for the efficiency and longevity of CAV units. Some best practices include:

  • Proper Sizing: Selecting the correct unit size based on the specific heating and cooling load calculations is crucial.
  • Ductwork Design: Efficient ductwork design and sizing are essential for proper airflow distribution.
  • Control System Integration: Integrating the CAV unit with the building automation system (BAS) for optimal control and monitoring.
  • Commissioning: Thoroughly testing and balancing the system after installation to ensure optimal performance and efficiency.

What are the Top Manufacturers for CAV Units?

Several reputable manufacturers specialize in CAV units and other HVAC equipment. Some of the leading names in the industry include:

  • Carrier
  • Trane
  • York
  • Daikin
  • McQuay

Conclusion

CAV units continue to play a significant role in various HVAC applications demanding consistent airflow. Understanding their operation, advantages, and best installation practices ensures these systems function efficiently and provide reliable climate control for many years. When making decisions about HVAC systems, consulting with experienced HVAC engineers and contractors is always recommended to determine the best solution for your specific needs.

Unlock Growth with Faster Takeoffs Today.