With growing attention on greener buildings and smarter energy use, the air-conditioning field is placing a strong focus on developing more innovative system solutions.In this article, we take a closer look at a highly efficient Underfloor VAV System and explore how its unique design delivers both significant energy savings and improved indoor comfort.The Underfloor VAV system uses a “supply from below and return from above” airflow strategy. Fresh air is delivered through the underfloor plenum directly into the occupied zone, and as the warm air naturally rises, it returns through the cei...

In modern architectural design, both the aesthetics and functionality of ceiling air diffusers are equally important.The RS continuous linear VAV diffuser features an integrated, elongated form that removes the visual clutter of traditional segmented installations, resulting in a cleaner and more cohesive ceiling appearance.Flexible Combination with Similar or Dummy Diffusers: Supports seamless connections between linear VAV diffusers and can also be paired with dummy diffusers to accommodate various length requirements. The joint structure is clean and straightforward, ensuring both installat...

The proper design and construction of the VAV ductwork system are critical to ensuring the normal operation and control of the VAV system during its later stages01. Connection Methods of VAV-BOX Branch Ducts and Main Ductsa.The branch-to-main duct connection for VAV-BOX units adopts a lateral tapping method (see Figure 1). This configuration ensures more uniform inlet static pressure across all VAV-BOX terminals, significantly simplifying system commissioning.Figure1b.The branch duct interface shall have a 45° transition angle or rounded edge. The branch duct must not protrude into the main d...

In the variable air volume air conditioning system, the single duct variable air volume terminal equipment (VAV-BOX) is one of the most common variable air volume terminal devices.Its main function is to automatically adjust the supply air according to the temperature requirements of the room so that the indoor temperature remains within the set range to ensure a constant and comfortable space environment.In the previous chapter, we have gained an in-depth understanding of the measurement principles, common accessories and applications of single -duct variable air volume terminals. In this cha...

The Royal Service Smart Variable Air Volume Diffuser (SVAD) is a low-pressure drop terminal device in variable air volume (VAV) systems. In addition to its fundamental function of space temperature regulation through airflow modulation, this terminal unit can be equipped with optional accessories to achieve extended functionalities.The SVAD offers a range of optional accessories to expand its functionality. Below is a detailed analysis of available accessories, selection criteria, and their added functionalities:1.Electric Heater ElementElectric Heater Element Control and FunctionsIt use PTC t...

       The fan-powered variable air volume terminal, also classified as a throttling-type terminal, integrates a fan into the basic single-duct configuration. Based on the distinct arrangement between the fan and the primary air damper, it is categorized into series-type (FPS) and parallel-type (FPP).       Series-type       The fan and the primary air damper are arranged in series, where the AHU-treated primary air passes through both the primary air damper and the fan. The fan operates continuously to maintain a constant supply airflow rate.       Parallel-type       Appl...