The Suction Line Filter-Drier method of cleaning up a system after a hermetic motor burnout is favored by service technicians and recommended by manufacturers throughout the HVAC and...

A solenoid valve with a built-in check valve is designed to replace a liquid line solenoid valve in parallel with a check valve for reverse flow. This valve may be applied in the liquid line of...

With our recent introduction of the Smart Service Tool Kit, there have been many questions asked and answered. Let's review the ones pertaining to buying and general details here:   Q1: When will the...

​To ensure peak performance, solenoid valves must be selected and applied correctly; however, proper installation procedures are equally important. Aside from correct installation, troubleshooting the...

We all know that a properly charged refrigeration system utilizing a receiver must have a liquid and vapor interface in the receiver. And we also know that saturated pressure and temperature...

In air conditioning and refrigeration applications, the ability of the thermostatic expansion valve (TEV) to match refrigerant flow to the rate at which refrigerant can be vaporized in the...

Parker's HVACR Tech tips cover service tips for the HVACR technician servicing commercial refrigeration systems as well as  HVAC  for both commercial and home. The following are service tips for...

Calculating Superheat and Subcooling requires cumbersome equipment, writing down temperature and pressure readings, converting pressure readings using a PT chart, and finally subtracting totals to...

Lubricant-refrigerant mixture breakdown causes sludge formation and other corrosive materials that will hinder the normal operation of compressor valves and control devices in refrigerant and...

Climate control is the technology of controlling fluids and gases to vary temperature. Parker provides comfort, convenience and control through refrigeration and air conditioning.   Key markets Air...