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R32 and R410A, and R22 guages

2.6K views 18 replies 13 participants last post by  RMSG01  
#1 ·
Hey newly apprenticed hvac here.
Need some help with information, I've had a coworker inform me that there are 2 main manifold guages I'll need r32, r410a, and r22 guages (r32 and r410a guages don't work properly with r22 and vice versa?). But I've looked online and I see guages that do r32, r22, and r410A?
 
#2 ·
Because your profile states you are a tech, I moved your thread to the “Tech to Tech Chat - Residential” forum. The AOP forum is where homeowners can ask non technical questions.

Please take note of this new location as the "Moved" icon in the other forum will only last a day.
 
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#3 ·
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#6 ·
A gauge is a gauge. The PT charts on the gauges are what's different.
 
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#7 ·
You’ll need adapters for r32, and r454 for your hoses. They tried this back in the 90’s saying you had to have separate hoses for Poe.
 
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#12 ·
Aside form the electronic gauges any gauge is most accurate mid range of it's span, R-410 needs a larger range.
My old R-22 gauges won't give a reliable reading on R-410. 410 might actually damage them by maxing out the
gauge and flexing the bordon tube.
Probably cheaper to go electronic. They tell more than just pressure. I always wanted a set. If nothing else they look cool.

If you look on line be aware that most offered are inferior and made for people that need to charge their cars. Name brands are
notoriously over priced especially from the supply houses. Most will need calibration over time but the gauge manufactures don't give
a good way to achieve that. Replace the gauges over time depending on how often they are used. But who knows when that is.
 
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#15 ·
Digital gauges are for lazy hipsters and people that want to show off. You'll never catch me using them.

I prefer to see my needles moving around, I can tell what's going on instantly by their little dance. Are your digital gauges reading drift or are they broken? Are your batteries dying? The batteries in my analogs never run out and I don't need to plug them into a computer to download an update. If I bust an analog gauge it's $25 and ten minutes to fix instead of having to send them back to the manufacturer for repairs and calibration.

IMO all you need is this:
- A manifold for R22/R410A. I use the Yellow Jacket 42001
- A manifold for R32/R454B. I recommend the Yellow Jacket 42035
- A couple good sets of low-loss hoses. I use the 22983 36" hoses with the quick-check ends.
- A good clamp-on digital thermometer. I prefer the Cooper 4005I.
- A good core removal tool. The Appion MGAVCT is by far the most popular one I sell but I've had a CPS TLVCS for years. It's cheap and works well.
- A couple 5/16" hose adapters for mini-splits. The CPS AD87/AD87S are very affordable.
- A left-hand tank thread adapter for A2L refrigerant tanks.
 
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#18 ·
Is there currently anything out there that allows .CSV or similar based PT profile making to future proof it so that you're not at the mercy of factory update? Something that gives you at least three custom refrigerants with bubble/dew as needed within the upper range limit. (so... CO2 may need a special set of gauges due to extreme pressure)?

Refrigerant market is constantly evolving and designer refrigerants are constantly being put out.
 
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