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Variable Air Volume Box with Hot Water Reheat | Commercial HVAC

Variable Air Volume Box with Hot Water Reheat Variable Air Volume Box with Hot Water Reheat – The variable air volume box or VAV box is a commercial solution to adding multiple zones to large buildings. VAV boxes offer zoning solutions so that separate zoning demands or temperature selections can be maintained in different areas of […]

Temperature Measurement & Conversion for HVACR

In air conditioning and heating applications it is necessary to accurately measure temperature to offer control of the temperatures relative to the application for which the HVACR equipment is serving. There are four separate temperature scales used to measure temperature and it becomes necessary at times to have the ability to convert between the different […]

VAV Air Handler | HVAC Zoning

 VAV Air Handler | HVAC Zoning VAV Air Handlers are ideal for providing zones in a commercial building. Office space typically has several offices and open areas that need to be conditioned for the comfort of the people working in those areas or offices. By installing VAV boxes and zoning the duct work from those […]

Commercial Boiler Stack with Economizer | HVAC Heating

Commercial Boiler Stack with Economizer | HVAC Heating Commercial Boiler Stack with Economizer – This is not a normal commercial boiler stack in this boiler room. It has a bypass stack for an commercial hot water economizer. All boilers have make-up water to make up for water lost in the systems especially for domestic hot […]

Plate Heat Exchanger and Free Cooling

Plate Heat Exchanger and Free Cooling Plate Heat Exchanger and Free Cooling – This plate heat exchanger is used in a data center for a chilled water system and is a chilled water economizer. Plate heat exchangers are used in marine applications, industrial processes including chemical processing systems, food processing, and many HVAC applications including […]

Heat Pump Electric Back-up Heating

Heat Pump Electric Back-up Heating There are different types of electric heating available in homes but probably the most common use for electric heat other than portable electric heating units is electric heat strips used for back-up heat in heat pumps. Sizing the electric heat strips for heat pump back-up heating applications will depend on […]

Residential Hot Water Boiler Control | HVAC Heating

Residential Hot Water Boiler Control | HVAC Heating The average residential/light commercial boiler typically uses different controls to sequence the boiler. Boiler control in commercial and industrial applications can be very complex and can have added layers of controls outside of the local boiler controls that come from the manufacturer. There are also differences of […]

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