excellent training video, looking forward to more. Russ Mitchell

Interesting stuff. Thanks Ron.

Well done. Helped alot

Great Video... helps me to understand the control mechanism. At around 18 minutes... you show the math of 91-67 psig as 14 psig, but I think you may have wanted it to show 24 psig which was giving you a 14F temp difference across the evaporator. However, I still get the points and its a great tutorial!

Talking about an explanation of a conventional ac unit which would be most car , window units , and ac non-heat pumps. Back in the day they ice up in colder then normal conditions but now you don't see that happening all that much curious what is protecting this

i have a problem with our refrigeration system onboard ship ,i can not reach -20 degrees celsius, what would be the problem?

what i am looking for is an explanation on how a non-heat pump ac unit protects itself against a evaporator icing is it like have a separate thermostat in the evaporator which breaks contact with the compressor contactor . Because the simplest way i can see is have a simple thermostat switch that checks the evaporator temperature range... like a fan limiting switch in a furnace

Ron, Good Stuff

should that be 24 psig

91-67 the gas difference = 24 not 14

This is expansion valve

91-67= 24