American Technical Publishers, Inc.

Electric motor drives are commonly used to control motor operation in a variety of applications from residential furnaces to large industrial pumps. F …

The Code Knowledge Game is an engaging way to study and test one’s understanding of the National Electrical Code® (NEC®). Common electrical design and …

The Troubleshooting Web-Based HVAC Control Systems App is designed to provide HVAC technicians with an efficient mobile resource to troubleshoot web-b …

The Electrical Load Calculator is a convenient tool that can be used to determine the minimum electrical load demand for one-family and multifamily dw …

Augmented Reality (AR) now brings new capabilities to HVAC training. Access interactive and engaging 3D models of selected figures in the HVAC and Ref …

NOTE: This version of the Electrical Load Calculator is based on the 2011 NEC®. The 2014 NEC® version of the Electrical Load Calculator is coming soon …

The Solar Time Calculator provides the ability to easily convert clock time (standard or daylight saving time) into solar time, as well as from solar …