Retrofitting

Many large areas are not used very often, and lights may be left on unnecessarily. These low-use areas include mechanical rooms, boiler rooms, pipe basements or crawl spaces, attics, and storage rooms. An inexpensive pilot […]

Exterior lighting of walkways and building entrances can remain on during daylight hours or at other unnecessary times. If these lights are on a dedicated circuit, they can be turned on and off independently by […]

A bent open tube facing upstream in a uniform airflow regime is used to measure the static pressure in the duct. If connected to a vertical capillary tube, it will cause the fluid to rise, […]

The engineer performs exhaustive calculations on a building before designing an HVAC system. These take into account the lighting and equipment heat sources, the latent and sensible load of people, in addition to contributions from […]

When an HVAC designer is engineering the air handler, the maximum occupancy is used to establish the outside-air requirements. This can place an unnecessary load on the air handler for large assembly areas such as […]