"puron" comfort vs old R-22

[atphvac]

Has anyone switched from a R-22 refrigerant system to a new "Puron" (R-410a) system and noticed increased/decreased comfort levels?

[too tall terry]

Puron runs 1.6 times hotter/cooler than R22......in field applications,i really like the R410A or PURON.....here at the house i have a 13 seer Tempstar heatpump system,and it is a good one,but when it goes i am going with Puron/R410A system.....my old lineset that carried the older R22,will be all new,as it is easy to replace,if yours can not be replaced,i would strongly suggest you have a clean up kit used on the lineset....the oils R22 and R410A/PURON don't like each other very well.....hope this has helped you in some way,good luck!!!!!!!!!!!

[BaldLoonie]

Here's something interesting. Looking at 3.5 ton American-Standard heat pump options, best we could get with TXV coil and variable speed furnace was 13.5 SEER in a R410a line. But good old R22 we could get a 14.25 SEER match. Anybody have any ideas why?

In the R410a units I've started, I've seen no diffs in temp rise/drop from similar R22 systems.

[beenthere]

24,000 btu's is 24,000 btu's no matter which gas it is.

Its colder at the same "pressure" as 22.

[docholiday]

The both use the same saturation temps, as beenthere said, 24,000 is 24,000 and a 40 degree coil is still a 40 degree coil.

If you dont like having to install a complete system to get 13 SEER, you wont like having to do it all over again when 410A is the norm. Might as well do it now, and get it out of the way.

[k-fridge]

You guys that are comparing the pressure/temperature relationships of 410 to 22 aren't comparing apples to apples. As a refrigeration guy I'm used to working with about dozen refrigerents and many of them will run very different evaporater temps at a given pressure.

Whether it's a freezer, a cooler, or an air conditioner, the equipment is designed to run at a specific temperature range. Both being air conditioning applications, R-410 systems will run similar evaporator temps as an R-22 system. If it did run colder as many of you seem to think it would be running a sub-freezing coil much of the time and we'd see frozen evaps. The R-410 will run higher suction pressure than you see on R-22, and if you cross that suction pressure to a temp on a P/T chart you'll see about the same evap temp as is normal on an R-22 system.

A BTU is a BTU is a BTU,,,,,,,,,,,,,,,

[bobh]

Im not repling to any threads with the name puron in it ! Theres no such refrigerent as puron ! Freon is either r22 or 410 ! THERE AINT NO SUCH THING .... he he

[BaldLoonie]

Me tinks you are confused. Freon is DuPont's tradename for certain refrigerants and R410a isn't one of them. The gas is only Freon if DuPont made it and it is one of the products they call Freon. If DuPont didn't make it, it is not Freon.

R410a is only Puron if it is in a Carrier or Bryant product and then it may be Suva or some other tradename as well! But I agree, too many people use it generically with R410a just like Freon is used for all R22.

[Edited by BaldLoonie on 02-27-2006 at 09:13 AM]

[atphvac]

The reason I posted the question is I don't feel as comfortable in homes that have 410a. I've noticed a difference, and several other business owners i've spoken to tell of customers that complained after going to r-410a.
My service manager says the r-410 duct systems sweat more than the r-22 house right next door. Whats going on?

[airworx]

kfridge is correct, however r410a loses capacity as the temperture rises.someone can spend sometime getting the info.

[k-fridge]

Originally posted by bobh
Im not repling to any threads with the name puron in it ! Theres no such refrigerent as puron ! Freon is either r22 or 410 ! THERE AINT NO SUCH THING .... he he

So how many of you guys remember "Carriene"? (not sure about spelling)

AKA R-500. A refrigerent Carrier used in A/C for awhile, untill their patent ran out anyway.

[dash]

Originally posted by atphvac
The reason I posted the question is I don't feel as comfortable in homes that have 410a. I've noticed a difference, and several other business owners i've spoken to tell of customers that complained after going to r-410a.
My service manager says the r-410 duct systems sweat more than the r-22 house right next door. Whats going on?

I'd think something else is making he difference.Sweating could be low air flow,if variable speed and a Thermidistat,it's likely not "setup" properly.

What are the comfort issues,differences??

[atphvac]

I haven't had customer complaints but it doesn't feel right to me. You know how the old r-12 automobile systems felt cool and crisp compared to the new r-134 systems?

It sounds weird but the air feels "heavy" like when you walk into a wine cellar as opposed to a freezer box.