R-410A REFRIGERANT STUDY GUIDE
EXAM 2025/2026 QUESTIONS AND
ANSWERS 100% PASS
R-410A is a Refrigerant, also known as....? - ANS SUVA - 410A....... AZ-20......Puron
The cylinder color code for R-410A is...? - ANS Rose
HCFC-22 is scheduled for total phase out, by the year? - ANS 2020
Suction and Discharge pressures for R-410A are how much higher than R-22 Systems? -
ANS 40% to 70%
What is Temperature Glide? - ANS A range of condensing and evaporating temperatures for
one pressure.
When handling Refrigerants, Technicians should? - ANS Wear approved eye protection and
gloves/ Avoid loose fitting clothes.
A full Nitrogen Cylinder has a pressure of...? - ANS 2500 psig
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Nitrogen Cylinders should only be moved....? - ANS 1) with a protective cap in place 2) with
an approved Cylinder cart.
Temperature Glide for R-410A is less than...? - ANS 0.3 degrees F
Why is R-410A a better choice than R-22 Refrigerant? - ANS R-410A is more efficient, uses
less energy, and has a lower TEWI
Due to it's higher Vapor heat Capacity, what can be said of the Discharge Temperature of R-410A
when compared to R-22? - ANS Discharge temperature are lower.
Systems using R-410A must use what type of lubricant? - ANS Polyol Ester Oil (POE)
What can be said of Polyol Ester Oils? - ANS 1) Can cause skin irritation 2) Is
Hygroscopic..Draws moisture like a magnet 3) Has improved heat transfer characteristics over
the mineral oils
How would one remove moisture from a Polyol Ester Oil? - ANS Change the filter drier
When installing a liquid line filter dryer on a R-410A system, the dryer must have a pressure
rating of how much psig? - ANS 600 psig
What can be said of true Azeotropic Refrigerant? - ANS Will not fractionate.....Has no
Temperature Glide.....Is a single component Refrigerant
The closer a blend comes to being a true Azeotropic, what can be said of the Temperature
Glide? - ANS The glide in temperature will decrease
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
EXAM 2025/2026 QUESTIONS AND
ANSWERS 100% PASS
R-410A is a Refrigerant, also known as....? - ANS SUVA - 410A....... AZ-20......Puron
The cylinder color code for R-410A is...? - ANS Rose
HCFC-22 is scheduled for total phase out, by the year? - ANS 2020
Suction and Discharge pressures for R-410A are how much higher than R-22 Systems? -
ANS 40% to 70%
What is Temperature Glide? - ANS A range of condensing and evaporating temperatures for
one pressure.
When handling Refrigerants, Technicians should? - ANS Wear approved eye protection and
gloves/ Avoid loose fitting clothes.
A full Nitrogen Cylinder has a pressure of...? - ANS 2500 psig
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Nitrogen Cylinders should only be moved....? - ANS 1) with a protective cap in place 2) with
an approved Cylinder cart.
Temperature Glide for R-410A is less than...? - ANS 0.3 degrees F
Why is R-410A a better choice than R-22 Refrigerant? - ANS R-410A is more efficient, uses
less energy, and has a lower TEWI
Due to it's higher Vapor heat Capacity, what can be said of the Discharge Temperature of R-410A
when compared to R-22? - ANS Discharge temperature are lower.
Systems using R-410A must use what type of lubricant? - ANS Polyol Ester Oil (POE)
What can be said of Polyol Ester Oils? - ANS 1) Can cause skin irritation 2) Is
Hygroscopic..Draws moisture like a magnet 3) Has improved heat transfer characteristics over
the mineral oils
How would one remove moisture from a Polyol Ester Oil? - ANS Change the filter drier
When installing a liquid line filter dryer on a R-410A system, the dryer must have a pressure
rating of how much psig? - ANS 600 psig
What can be said of true Azeotropic Refrigerant? - ANS Will not fractionate.....Has no
Temperature Glide.....Is a single component Refrigerant
The closer a blend comes to being a true Azeotropic, what can be said of the Temperature
Glide? - ANS The glide in temperature will decrease
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
