No. You absolutely cannot mix any refrigerants. You should completely recover all the old refrigerant and charge the system, with the new refrigerant, using the superheat method.
No r404a is not compatible with r409a, r134a and 404a use the same lubricates and are compatible but r409a use a different lub making them incompatible
Not without a proper conversion.
all refrigeration standing pressure in psi
there is no set answer ,you have to ajust pressure using subcool and superheat. if these terms confuse you i recomend calling an hvac contractor
Soil is a mixture and it is not a compound because it doesn't have any particles that you can pick out of it.
f = 32 + 20 X 9/5 = 68
'To mix' is mesclar.The imperative [to a single person] of 'to mix - Mix! - is ¡Mescla!The imperative [to a group] of 'to mix - Mix! - is ¡Mesclad!'I mix' is mesclo.And finally, 'the mix' is la mescla.
not mix
Of course you CAN mix it. you can mix anything as long as you have it.
the word is irregular and will always be "mix" or "mixes" can also be used. 1 mix, 2 mix, 2 mix ect. I mixed, you mixed and we mixed.
Double mix, mix of three and mix of four
a mixer