Electricity is a very large part of an HVAC technician’s day-to-day experience. Almost every system failure involves one or more electrical components in the equipment being serviced. An HVAC ...

Do you understand neutrals and fault current paths? Neutral connections, fault current paths, and grounding considerations can be confusing, but if you understand the basic principles of electricity, ...

A friend once asked about the block of relays pinned to a board behind my car's dash. To him relays were the mysterious little boxes that some cars inexplicably required to operate a horn. More than ...