Streamlining Your Workflow with the Price Engineer Toolkit
A variable air volume terminal unit, or VAV box, provides space-specific heating, ventilation or air-conditioning to individual zones within a larger indoor environment. The most common VAV box is a single-duct terminal unit, which regulates the volume of air that each space requires by adjusting a damper with an automated controller and actuator. VAV terminals often include additional components such as hydronic or electric heating coils and fans equipped with variable-speed motors.
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Topics:
Terminals,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Training,
Tech Tip,
Software
Providing Supplemental Reheat to the Highest Standards of Safety
Electric coils are an HVAC accessory that in certain applications utilize electricity to reheat conditioned supply air for an occupied space. There are two types of electric coils provided on Price's terminals and fan coils: duct heaters and terminal unit heaters. Both achieve the same goal of providing supplemental reheat to the occupied space but differ in their construction and configuration.
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Topics:
Terminals,
Fan Coils,
HVAC Fundamentals,
HVAC,
Engineering
Providing Terminal Units with Energy Efficiency and Control
Fan-powered terminal units use a motor and blower assembly to handle high levels of external static pressure, which enables the product to serve long duct runs and multiple air outlets. Using a motor within an assembly allows for smaller air handling units and gives the terminal unit the ability to tolerate variability in the heating and cooling requirements of exterior zones.
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Topics:
Terminals,
HVAC Fundamentals,
HVAC,
Engineering
Optimal Sound Reduction for Terminal Units
Terminal units influence a building occupant’s experience through heating, cooling and acoustics. Price offers attenuators and silencers as two different methods to reduce a terminal unit’s operating sound level. An attenuator reduces sound levels by utilizing a section of duct lined with acoustical media whereas a silencer utilizes both baffling and acoustical media to break sound waves and reduce the sound level leaving the unit. Although attenuators may suit a project depending on its acoustical requirements and pricing, silencers offer optimal sound reduction.
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Topics:
HVAC Silencers,
Terminals,
HVAC Fundamentals,
HVAC
An Essential Design Consideration for Mechanical Engineers
Pressure drop – the difference in pressure between two points in a fluid-carrying system – is one of the most critical design considerations for air distribution equipment in the HVAC industry. The problem with pressure drop for terminal units is that there are a number of metrics that are often confused with one another despite referring to different performance variables. These include static pressure drop, velocity pressure drop, pressure drop associated with acoustics and pressure drop associated with accessories.
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Topics:
Pressure Drop,
Terminals,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering
