Pat Refrigeration Basics Quiz June 17, 2021, 1:47 am

Comments

Related Tech Tips

This is Not a Soft Start
I used to call PTCR devices a "Soft Start". I was wrong.
Read more
Commercial Refrigeration Compressor Operation
Basic Compressor Functions The compressor's job is to circulate refrigerant through the system by means of vapor compression, similar to the way your heart moves blood through your circulatory system. Refrigerant circulation is measured in lbs/min or lbs/hour; this is called mass flow rate—the mass flow rate changes depending on the density of the refrigerant […]
Read more
Non-non-condensables
  Flowing nitrogen while brazing and pressurizing with nitrogen are great practices. Putting nitrogen in with the refrigerant? Not so much. Nitrogen is a “non-condensable” gas because it cannot be condensed (under normal conditions). However, nitrogen is just one of the non-condensables. First, let's talk about what a non-condensable gas is. Any gas that does […]
Read more
loading

To continue you need to agree to our terms.

The HVAC School site, podcast and daily tech tips
Made possible by Generous support from