R 410A Q&A
because of its higher Vapor heat capacity the discharge temperature of r410 alpha is -
(correct answer)LOWER
r410a is also known as - (correct answer)suva...az20...puron...
both suction and discharge pressure is of r410a systems are-------than r 22 systems. -
(correct answer)40% to 70%
the temperature gliade for 410a is leas than..... degrees Fahrenheit over air conditioning
and refrigerating operating ranges. - (correct answer)0.3
compression ratio is calculated as - (correct answer)absolute discharge pressure /
absolute suction pressure
polyol ester - (correct answer)can be irritating to the skin
is hygroscopic
has improved heat transfer characteristics over mineral oils
the low pressure control on r410a Alpha system will open it - (correct answer)50 psig
when a blend is zeotropic or near azeotropic - (correct answer)leaks may cause a
change and composition of the blend
it will have temperature Glide
all the above
r410a systems use a high pressure switch that will be open at approximately - (correct
answer)610 psig plus or minus 10 psig
, a true azeotropic blend - (correct answer)will not functionate
has no temp glide
behaves as a single compound refrigerant
subcooled liquid in the receiver May.... subcooling depending on surrounding conditions
- (correct answer)lose and gain
which of the following statements is true of r407c - (correct answer)it may separate into
its component refrigerants
when installing a liquid Line Filter drier on a r410a system be certain that it has a
pressure rating of at least - (correct answer)600 psig
the flow area of a r410a metering devices - (correct answer)smaller than that of a R22
metering device
temperature Glide refers to - (correct answer)a range of condensating and evaporating
temperature for one pressure
when a blend of zeotropic and near azeotropic - (correct answer)it should be transferred
from cylinders as a liquid to avoid fractionation
cylinders containing r410a that are equipped with dip tubes - (correct answer)to allow
liquid to be removed with a cylinder upright
near azeotropic blend fractionation may - (correct answer)cause of components to leak
at uneven rates due to varying Vapor pressures
the clothes I blend comes to being a true azeotrope - (correct answer)the lowest
temperature Glide it will have
because of its higher Vapor heat capacity the discharge temperature of r410 alpha is -
(correct answer)LOWER
r410a is also known as - (correct answer)suva...az20...puron...
both suction and discharge pressure is of r410a systems are-------than r 22 systems. -
(correct answer)40% to 70%
the temperature gliade for 410a is leas than..... degrees Fahrenheit over air conditioning
and refrigerating operating ranges. - (correct answer)0.3
compression ratio is calculated as - (correct answer)absolute discharge pressure /
absolute suction pressure
polyol ester - (correct answer)can be irritating to the skin
is hygroscopic
has improved heat transfer characteristics over mineral oils
the low pressure control on r410a Alpha system will open it - (correct answer)50 psig
when a blend is zeotropic or near azeotropic - (correct answer)leaks may cause a
change and composition of the blend
it will have temperature Glide
all the above
r410a systems use a high pressure switch that will be open at approximately - (correct
answer)610 psig plus or minus 10 psig
, a true azeotropic blend - (correct answer)will not functionate
has no temp glide
behaves as a single compound refrigerant
subcooled liquid in the receiver May.... subcooling depending on surrounding conditions
- (correct answer)lose and gain
which of the following statements is true of r407c - (correct answer)it may separate into
its component refrigerants
when installing a liquid Line Filter drier on a r410a system be certain that it has a
pressure rating of at least - (correct answer)600 psig
the flow area of a r410a metering devices - (correct answer)smaller than that of a R22
metering device
temperature Glide refers to - (correct answer)a range of condensating and evaporating
temperature for one pressure
when a blend of zeotropic and near azeotropic - (correct answer)it should be transferred
from cylinders as a liquid to avoid fractionation
cylinders containing r410a that are equipped with dip tubes - (correct answer)to allow
liquid to be removed with a cylinder upright
near azeotropic blend fractionation may - (correct answer)cause of components to leak
at uneven rates due to varying Vapor pressures
the clothes I blend comes to being a true azeotrope - (correct answer)the lowest
temperature Glide it will have
