Vav Box With Electric Reheat Coil
Lynergy scr electric heater application guide.
Vav box with electric reheat coil. 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. Quiet type with dissipative silencers and hospital grade boxes are also available. All of price terminal units with electric coils are etl listed. Electrical electric control box electric heat single point power connection primary manual reset high limit fusing wiring diagram optional features construction 3 4 and 1 insulation foil faced scrim backed insulation double wall construction with 22 gauge liner hot water coil multi circuit coils for reduced water pressure drop.
Quick reference guide low res. The price electric coils are designed to be utilized in environments where. Electric reheat coils are an available accessory for use with price single duct and fan powered terminal units. Single duct terminals are the fundamental building blocks for variable air volume vav systems.
Some variable air volume boxes also have a heat source inside the box. Their primary function is to regulate airflow to a zone in response to zone temperature requirements. Cooling only box desired. 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 heat source in many variable air volume boxes are typically electric but can also be a hot water coil. Zone with its vav box wide open maximum air flow to the zone. Note that if an electric reheat box was selected the minimum cfm would be dependent upon the kw of the electric heater. Old style electric heater iom units shipped before june 1 2001 quick reference guide high res.
Standalone coils supplied as duct heaters are certified in compliance with ul 1996. Electric heater application guide. At the vav box selection step in the design process all air distribution zones the required rate of cooling and heating supply airflow per zone and the number of vav boxes per zone should be established. The thermostat and the controller will also turn on the heat whenever the temperature in the space falls below the set point as determined by the thermostat and pre.
Nailor 3000 and 3100 series terminal units are among the most versatile vav boxes on the market providing easy hvac system integration with diverse control packages. This article will focus on cooling with electric reheat vav boxes. Electric heating coils. Tu accessories catalog section.