Pump down solenoid valves are commonplace for any refrigeration technician. They are energized with the compressor still running, shutting off flow in the liquid line so that the refrigerant is pumped into the condenser and receiver. The compressor will then shut off once a low-pressure switch opens the circuit when the pressure falls below a […]

This article about A2L refrigerants was written by Don Gillis with Chemours. Thanks, Don! HVACR service technicians find themselves at the forefront of the refrigerant transition in AC and commercial refrigeration. As hydrofluorocarbon (HFC) refrigerants with high-global warming potential (GWP) are being phased down, mildly flammable A2L refrigerants have been identified as potential lower-GWP alternatives.  […]

Here's another quality tech tip from senior refrigeration and HVAC tech Jeremy Smith. Jeremy lives in Ohio, so he knows a thing or three about the cold. As HVAC/R techs, we're often called on to work in some of the worst weather conditions. With the cold weather, I thought it timely to share some tips […]