Q:

How does a VAV system work?

A:

A VAV system, also known as a variable air volume system, is a type of heating and cooling system that uses a large air handler and central duct system. According to High Performance HVAC, this setup allows an engineer to accommodate very large areas that need to be regulated by a single cooling or heating system. Variable air volume system setups tend to vary depending on each building's needs.

Professional buildings like factories and offices often have large rooms that need to be regulated with a single temperature control system. Variable air volume systems are designed to handle the logistics of regulating the temperature of large areas.

Depending on the temperature that is set, a variable air volume system allows its damper to open or close to allow more or less air flow. When cooling, more air flow is required. Usually, these systems also have a sensor that can detect the air flow through the duct system. This is used in conjunction with an air handler blower fan that can move the heated or cooled air through the ducts and spread it throughout large spaces. Because these systems are specific to individual workplaces, not all variable air volume systems have the same number of sensors or fans.


Is this answer helpful?

Similar Questions

  • Q:

    What should you consider before getting an indoor AC system?

    A:

    There are several things that must be considered before getting an indoor AC system, including the sizing, cooling efficiency and moisture-removal capability of the AC, the cooling load and the area of installation. The goal is to have the most efficient cooling system in the home with the most utility bill savings and the least total lifetime costs.

    Full Answer >
    Filed Under:
  • Q:

    How does a thermostat work?

    A:

    Generally speaking, thermostats work by using a mercury switch that is in contact with a thermometer wire to trigger a temperature-adjustment lever in response to the expansion or contraction of the wires as they are heated or cooled. The expansion and contraction of these wires triggers switch relays that control heating and cooling by triggering either a circulation fan and heater or air conditioner.

    Full Answer >
    Filed Under:
  • Q:

    How does a dehumidifier work?

    A:

    According to Air-N-Water, dehumidifiers remove moisture from the air by cooling it and retaining the condensation. Air that enters the dehumidifier passes around a series of cooling coils. As the moisture condenses out of the cooled air, it falls into a reservoir inside the machine. The dried air passes through a heating element as it leaves the dehumidifier.

    Full Answer >
    Filed Under:
  • Q:

    What is a two-stage heat pump system?

    A:

    A two-stage heat pump has a compressor which is capable of operating at a high and low speed, improving its ability to maintain the temperature in a home with greater precision. This type of HVAC system also offers the advantage of more economical heating and cooling.

    Full Answer >
    Filed Under:

Explore