Refrigerant R410a is Here to Stay

410aIt’s time to accept R-410A as the new R-22 (at least for now)

It may be hard to believe, but there are still technicians who think of R-410A as that “new fangled refrigerant with the crazy-high pressures that the ‘Man’ forced on us”.

I’ve got four words for those guys; Get over it already.

Let’s take a look at those so called “crazy-high” pressures everyone is so worried about.

Way back in the days before energy efficiency was all the rage R-22 condenser coils used a single pass of HUGE, unrifled tubing with aluminum fins spaced so far apart you could see through them. On a hot day these monsters ran a 350 pound head pressure, and that was with a clean coil!

When energy costs hit the roof, energy efficiency became the number one concern. Manufactures started using multi-pass, rifled tubing with a bunch more cooling fins per inch. The result was head pressures dropping from the 325 range to about 200.

So, what’s this have to do with R-410A pressures? If you haven’t noticed, R-410A head pressures typically run about 375 psig; not much higher than R-22 in the days of old.

What is R-410A’s real downfall? The color of the darn can; who came up with Pink?! All I can say is, put on your “big technician panties” and accept it. It’s not going away any time soon.

Patrick is Zen HVAC’s diagnostic and training guy. Patrick started in the trade the day he left technical school and never looked back. He's served in various technical and training roles in the HVAC industry but specializes in system troubleshooting and diagnostics, retro commissioning, and technical training. His moto: If I can understand it, anybody can. Patrick uses the Zen common sense approach to teach Patrick’s Likes- His Wife, kids and dog. Old pickup trucks. Hiking. The industrial Revolution. Patrick’s Dislikes- Taking work too seriously. Anything unintuitive. Emoticons :( Patrick’s Favorite famous person- Theodore Roosevelt “I am only an average man, But I work harder at it than the average man" Famous Patrick Quote- “Well, that was stupid of me”

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