What is a variable frequency drive? Heating, ventilation, and air conditioning systems' air supply used to be constant volume into a space. Now a variable air volume control is being used to provide ...

The Evolution® Extreme variable-speed heat pump (280ANV) has efficiencies of up to 13 HSPF and up to 20.5 SEER. When combined with an Evolution control and Evolution gas furnace or fan coil, the heat ...

Inverter technology is the unsung hero of the HVAC world. Initially used primarily in high-end and ductless HVAC equipment, it is now being incorporated into a wider range of systems. Air-source heat ...

This is a sidebar to the feature story "Automating Energy Consumption" which appears in the March, 2008 Issue of Automation World. Most energy at plants is consumed by motors. According to the U.S.

Variable refrigerant flow (VRF) systems represent a dynamic advancement in heating, ventilation and air conditioning, providing tailored temperature control through precise modulation of refrigerant ...

A variable air volume box controls the air flow to a given space. When the space is unoccupied, the box closes off the heat and cooling to a minimum flow or turns it off when a building is not being ...

The Drives & Motion Division of Yaskawa America, Inc. announces the release of the Z1000 family of HVAC drives. This family of drives is comprised of the Z1000 variable speed drive as well as the ...

Learn about the many benefits of these upgrades, from first-cost and operational savings to increased usable space. Whether your multifamily building is a high-rise community or garden-style ...

Having spent 30+ years in residential construction, contracting, remodeling, maintenance and home repair, Deane now contributes DIY, informational and financial content as a freelance writer and ...

Several factors are driving the popularity of this versatile technology in the selection of HVAC for student housing retrofits and group-up projects. Student comfort, system management and sound ...