I show how to read manifold gauges and P/T chart.
HVAC Manifold Gauges and P/T Chart
May 6th, 2010 
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Tags: chart, DrZarkloff, gauges, HVAC, manifold, pressure, Starkloff, subcooling, Superheat, temperatureThe Plumbing Blog
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May 6th, 2010 admin Posted in Videos Tags: chart, DrZarkloff, gauges, HVAC, manifold, pressure, Starkloff, subcooling, Superheat, temperature
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I’ll get to it when I can. Thanks for the interest.
hi my name is albert i like all the videos they help alot but i have a question why every comp,wont hire a entery leve fresh out of tryde shcool i have type 1&3soon i have type 3 every comp,want’s exp,on the field but how i’am i going to get exp,on the field went they wont hire me tha’s my question thak’s
You can start by learning how to spell and type in English. lol
that is correct,same here in australia
most companies want 3-5 years experienced tradespeople..
well,you can always tell them that you will work for minimum wage untill you prove yourself..
Great video thanks so much for the guidance.
Thanks for watching.
You could try getting a job at a hospital, apartment complex, nursing home or any other place that does their HVAC in house.
Thanks for everything. Your videos are helping me with my HVAC classes.
What is the correct superheat setting for a Trane system?
If it the system has a TXV, you’ll want to charge the system by subcooling instead of superheat. Look at the back side of the control cover in the condensing unit. There might be a chart that tells you what the superheat or subcooling should be for outdoor ambient.
Isn’t R-134a used now in newer refrigerators ? All the 2009 refrigerators i’ve seen use R134a. I have one of them, and it cools MUCH faster and much better than my old R-22
Yes, R-134a is the most used refrigerant for domestic refrigerators. The new refrigerant for walk-in freezers is R404a and the newer walk-in coolers use R-134a.
20 to 30 degrees super heat!!!!!!!!1
Urgh, I am dreading 410a. I haven’t ran into it yet and I been doing this for 4 years. I do mostly hospitals, nursing homes, and restaurants hvac/r.
Most of that stuff is R22, 404a, 408 and 409.
I know what you mean. The school board is just now replacing older R-22 systems with R-410a systems.
great work on all videos!!! i am a cms in the rses organization and really get a lot from these.keep cranking them out so we can keep watching!!!!
thank you so much for making your videos, you help me out so much with doing my job better in the HVAC world. God bless
Thank you for watching.
Thanks for watching.
You should really check your pressures while in the cooling mode. With that, use superheat or subcooling to charge the system.
Can you explain how to charge a commercial freezer (captube) using the superheat/subcooling method?
I didnt realize there was a digital PT chart. They help SO much.
Thank you for your videos. I have a question. What gauges do you use recommend? What brand and model?
Thanks again
great videos, im in school for my asso.degree, and you help explain alot,
thanks for helping me with my homework
I’ve never seen anyone take these measurements at the air handler. When you connect gages at the condensing unit, you will also take your suc. line temp much closer to the compressor. It will be higher than the temp immediately exiting the evap. coil. Also the low side reading isn’t the “evap temp” the pressure reflects the heat absorbed from the return / outside air, so the coil temp is much lower than your suction line PT temp. U should do it again at the condensing unit.
dr Zarkloff ,i also learned it that you add 30 degree to ambient temp then go to your gauge and do the pt calculation .Does any of that make sense to you ?thanks in advance