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HVAC
NATE Low-GWP Refrigerant Certification
Recovery Procedures
Knowledge Check
Recovery Procedures
Knowledge Check
Knowledge Check
1 / 10
Why is it critical to never mix R-32 and R-454B in the same recovery cylinder, even though both are A2L refrigerants that replace R-410A?
A
The two refrigerants react chemically and produce toxic byproducts
B
They are different refrigerants with different compositions - mixing creates a contaminated blend with unknown properties that cannot be recycled or reclaimed
C
Mixing them creates a more flammable A3-class mixture
D
Mixing them voids the DOT cylinder certification
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