Vav Box With Reheat Coil

They also offer improved space comfort and flexibility for a wide variety of hvac applications.

Vav box with reheat coil.

Daikin s single duct vav boxes from 80 to 8000 cfm provide high performance and set the standard in the industry for construction performance and quality. Model tss terminals provide variable air volume vav control beyond the typical single duct box. Their primary function is to regulate airflow to a zone in response to zone temperature requirements. For hot water coils control valves are available normally open.

Although vav box selection should be performed as part of total air distribution system air handler s heating and cooling coils filters supply and return fans diffusers ducts controls design this article will focus primarily on vav box selection and meeting the latest energy code requirements. With minimal pressure drop and low noise levels the sdv controls the airflow rate of conditioned air into an occupied space in response to a thermostat control signal. Zone with its vav box wide open maximum air flow to the zone. See electric heat unit selection heating coil selection if required first determine the amount of heat required to meet space and downstream duct heat losses from a load calculation.

The zones with lesser cooling demand will throttle their vav boxes down as far as their minimum flows and if the air is still too cold will then reheat the air using a hot water or electric resistance coil at each zone. When ordered unions are installed at the water coil and are available on vav products and all fan coil units except vh. Incorporation of an airflow sensor allows the sdv to compensate instantly for any change in supply air pressure that might alter the supply volume resulting in a pressure independent variable air volume system. Cooling only box desired.

All ball isolation valves are furnished with an adjustable memory stop feature and may be used as a balancing valve. The variable air volume box or vav box is a commercial solution to adding multiple zones to large buildings. They are specifically designed for precise air delivery throughout the entire operating range regardless of the installed inlet conditions. Designed for cooling only cooling with reheat heating only or heat cool changeover applications.

Vav terminal units reduce energy costs and minimize carbon footprint. Quiet type with dissipative silencers and hospital grade boxes are also available. Variable air volume box with hot water reheat. Single duct terminals are the fundamental building blocks for variable air volume vav systems.