Hi,
I'd like to know your opinions about replacement of R-22 system working (-10 ºC to 36ºC) to R-404-a or Rs 45.
MY opinion is clear:
1.-) We know for several years how R-404-a is working, (not the same for Rs 45).
2.-) Big companies sell R-404-a for several years (not the same for Rs 45)
3.-) Big manufacturers (Bitzer, Heatcraft, Danfoss... give performance data for their products with R-404-a (not the same for Rs-45).
4.-) Everybody knows that glide for R-404-a is 0,9, Glide for Rs-45 its said that is 2,8 much bigger than 0,8 recognised by manufacturer...
5.-) R-404-a price is better than Rs 45
6.-) BUT, HERE COMES THE PROBLEM:
You need much extra operations in order to achieve a correct phase out of R22 to R-404-a, than Rs-45.
So, the offer is finally much expensive with R-404 a than with rs 45.
So, What to do if my customer is only looking for the cheaper option?
Thank you for giving me your opinions