period two

Components of a VAV System

notes

determined by the design cooling load of the space and the minimum setting is

normally determined by the space ventilation requirement or minimum airflow

 

for proper diffuser selection.

 

Most cooling-only units are applied to spaces that have no need for heat. These

 

units would operate in the region on the right-hand portion of this chart,

 

modulating between design and minimum primary airflow. When cooling-only

 

units are applied to spaces that do have heating requirements, the heat is

 

provided by a remote source such as finned radiation along the wall. In these

 

spaces, when the cooling load drops below the minimum airflow setting for the

 

unit, overcooling the space, the remote heat source activates. When space

 

heating is required, the remote heat source satisfies the space heating load.

 

Most terminal unit controllers provide an output signal to control this remote

 

source of heat.

Space Heating with a VAV System

terminal

 

mixing fan

plenum air

remote

heatingheat source coil

Figure 24

In addition to controlling this remote source of heat (perimeter baseboard radiation, in this example), single-duct VAV terminal units can directly provide heat to a space. This can be accomplished by adding a heating coil to each cooling-only unit or by mixing the primary air with warm plenum air before it is delivered to the space.

TRG-TRC014-EN

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Trane TRG-TRC014-EN manual Space Heating with a VAV System
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TRG-TRC014-EN specifications

The Trane TRG-TRC014-EN is a comprehensive technical resource guide that serves as an essential tool for HVAC professionals and engineers looking to enhance their understanding of Trane's commercial HVAC systems. This guide provides an in-depth examination of Trane’s advanced technologies, key features, and design characteristics that position their products as industry leaders in heating, ventilation, and air conditioning.

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In conclusion, the Trane TRG-TRC014-EN stands as an essential guide for HVAC professionals seeking to leverage Trane’s innovative technologies and design features. With a strong emphasis on energy efficiency, sustainability, technical accuracy, smart integration, and robust support, this guide underscores Trane's position as a leader in the HVAC industry.
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