Will mo99 replace 410a?
I'll preface with - I just barely know enough about refrigeration to be dangerous. The 608 card is all show and no go. I don't own gauges, and hope to never touch them again. Thinking about superheat and subcooling, that it comes so naturally to refer guys, gets my head spinning.
That said, the ENERGY side interests me a lot and I think I CAN get my head around that, so...
Doesn't lower pressure offer a slew of benefits, including easier serviceability and more efficient compressor operation?
If R-22 systems run lower pressures, and now mo99 can replace r-22, does this make the shift to 410a obsolete?
Will they start designing high efficiency equipment around mo99?
Pressure isn't as important as compression ratio when it comes to compressor efficiency.
The compression ratio isn't any different between R-22, R410a and, I'll assume, MO99.
There are other factors, but that's one.
At the same saturated temperatures, R410a has a slightly lower compression ratio than R22, so is a slightly more efficient refrigerant.
Originally Posted by jpsmith1cm
I have done both a NU-22 and MO99 retrofit to new dry 22 systems, I thought it was fairly simple and favor it more than 410a, this summer I've done 50 coil replacements, only 1 of which was on a 22 system, only due to a hole in the cap tube on this homeowners system I didn't feel comfortable soldering the hole in the cap tube and guarentee it working. Too many 410 coils leaking, mostly of them being superiors though. I feel like R-22 and its retrofit counterparts are much better for the systems than 410 is.
Well, spank me and call me Charlie. :LOL:
Originally Posted by mark beiser
I stand corrected.
So does the efficiency gain justify the maintenance risk? (of course this is probably leaving factual and moving to arbitrary/intuition/opinion, so probably no "right" answer but I'm sure the positions will be interesting.)
I still think we should go back to R-209. :whistle: