R410A Q&A
R410A cylinders with dip tubes allow the technician to do what ? - (correct
answer)Allows liquid to be removed with cylinder upright.
when changing out a R22 to R410A the evaporator coil can be used if ? - (correct
answer)meets UL approved design with a pessure rating of 235 PSIG
If a large leak happens in a enclose space you should ? - (correct answer)Vacate and
ventilate the space
when working with refrigerant you shoould always wear - (correct answer)gloves and
eye protection
Leak detectors used with R410A must be able to sense? - (correct answer)HFC
Low side pressure gage for R410A it must range to ? - (correct answer)250 PSIG with
550 PSIG retard
Which state ment is true of R407C ? - (correct answer)It is classified as an azeotropic
refrigerant
A TRUE azeotropic blend - (correct answer)Behaves as a single component refrigerant
When a blend is Zeotropic or near-azeotropic (NARM) - (correct answer)it will
fractionate,it has a temp glide,and leaks may cause change in composition of blend.
To avoid fractionation blended refrigerants should be - (correct answer)Charged as
aliquid
R410A cylinders with dip tubes allow the technician to do what ? - (correct
answer)Allows liquid to be removed with cylinder upright.
when changing out a R22 to R410A the evaporator coil can be used if ? - (correct
answer)meets UL approved design with a pessure rating of 235 PSIG
If a large leak happens in a enclose space you should ? - (correct answer)Vacate and
ventilate the space
when working with refrigerant you shoould always wear - (correct answer)gloves and
eye protection
Leak detectors used with R410A must be able to sense? - (correct answer)HFC
Low side pressure gage for R410A it must range to ? - (correct answer)250 PSIG with
550 PSIG retard
Which state ment is true of R407C ? - (correct answer)It is classified as an azeotropic
refrigerant
A TRUE azeotropic blend - (correct answer)Behaves as a single component refrigerant
When a blend is Zeotropic or near-azeotropic (NARM) - (correct answer)it will
fractionate,it has a temp glide,and leaks may cause change in composition of blend.
To avoid fractionation blended refrigerants should be - (correct answer)Charged as
aliquid
