In what way? If it is an R-22 system that needs charging I use R22. If the system needs replacing then I go to a 410 system, assuming HVAC.
What are all of you doing for a replacement for R22?
In what way? If it is an R-22 system that needs charging I use R22. If the system needs replacing then I go to a 410 system, assuming HVAC.
Lots of threads on this... do a search.
GA-HVAC-Tech
Your comfort, Your way, Everyday!
GA's basic rules of home heating and AC upgrades:
*Installation is more important than the brand of equipment
*The duct system keeps the house comfortable; the equipment only heats and cools (and dehumidifies)
*The value of comfort, over the long term; leave economic choices behind!
Choose your contractor wisely!
ok, did not see any thing first troul around will look again. Boss is looking into replacing some outdate equipment around campus and ask me my imput, 410A was the only replacement I could think of right off hand. Was interrested if there was any new refrigerant that may be a long term replacement. Lot of the guys I work with do not like the high pressures of 410A.
If the equipment is still good.... there are replacement (NOT drop in, NEVER mix R-22 with something else). Most require recover, N2 flush, new LL drier, replace schraders, then charge with new. Some play acceptably with MO, some need POE. Most operate similar to 22, yet at 85-95% capacity.
There are lots of threads on this recently, I think I have posted at around 5 or 6.
Personally... Install 410 equipment. Solves lots of problems and is a better value for the customer. Higher pressures are not a big deal... just follow proper safety procedures we should be doing on 22...
GA-HVAC-Tech
Your comfort, Your way, Everyday!
GA's basic rules of home heating and AC upgrades:
*Installation is more important than the brand of equipment
*The duct system keeps the house comfortable; the equipment only heats and cools (and dehumidifies)
*The value of comfort, over the long term; leave economic choices behind!
Choose your contractor wisely!
Yeah, they said the same thing when R22 came in and started replacing R12. I don't know what is available commercially but the new big refrigerant should be CO2.
Was wondering why we don't use more ammonia systems? Seems like this would be more enviromentally freindly.
until you get a breath of it.
Not trying to be smart. But a r-22 unit shouldn't have anything else used in it. If a system needs r-22 on a regular basis, its probably time to replace it with a R-410a system.
at least when you breathe ammonia you know to get out of the area. Breathing R22 isn't any better.
407c is also used in many systems. The pressures are close to R-22. I was told by a Supply House that 410a will start being phased out in the next 5 years due to its cause of the greenhouse effect.
GA-HVAC-Tech
Your comfort, Your way, Everyday!
GA's basic rules of home heating and AC upgrades:
*Installation is more important than the brand of equipment
*The duct system keeps the house comfortable; the equipment only heats and cools (and dehumidifies)
*The value of comfort, over the long term; leave economic choices behind!
Choose your contractor wisely!
Dupont M099. You loose capacity. If the unit is undersized,dont use it. Us on exv,txv system. Replace any rubber o rings.
Don't laugh to hard, Europe is already transitioning to HFO refrigerants, as well as systems that use a transcritical CO2 cycle. There is even transcritical CO2 equipment in use in the US in some applications, and you should start seeing HFO refrigerant using refrigeration equipment in the US soon.
At the AHR expo, there was at least one Asian manufacturer showing a trans critical CO2 heat pump SPLIT SYSTEM!
Roof Rat
Misplaced the link... Seems a study was done: The world used to be a LOT HOTTER than it is now... with a LOT LESS CO2 than we have now.
As usual... the enviro wackies are wrong... So what else is new...
GA-HVAC-Tech
Your comfort, Your way, Everyday!
GA's basic rules of home heating and AC upgrades:
*Installation is more important than the brand of equipment
*The duct system keeps the house comfortable; the equipment only heats and cools (and dehumidifies)
*The value of comfort, over the long term; leave economic choices behind!
Choose your contractor wisely!
I remember techs saying the same thing when we went from R12 to R22 for A/Cs.
If your campus has more cash than they know what to do with, go with new 410A units.
Worry later about tree huggers getting 410A phased out.