The classification of an A2L Refrigerant means: Non Toxic, Mildly Flammable
A2l Refrigerant UANJ

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Education
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Vocational training
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1.
FLASHCARD QUESTION
Front
Back
Non Toxic, Mildly Flammable
2.
FLASHCARD QUESTION
Front
Can A2L refrigerant (R32 or 454B) be used to REPLACE an existing 410A refrigerant charge?
Back
NO
3.
FLASHCARD QUESTION
Front
When using a recovery machine on an A2L how deep of a vacuums should the system be recovered?
Back
Never Pull Sub Atmospheric - Stay at a slight positive + pressure not to introduce air
4.
FLASHCARD QUESTION
Front
A2L Refrigerants will auto propagate (burn) under ambient conditions?
Back
No
5.
FLASHCARD QUESTION
Front
After recovering an A2L system, it needs to be:
Back
Purged with OFD Nitrogen
6.
FLASHCARD QUESTION
Front
A2L tank access will require:
Back
Left-hand thread adapters
7.
FLASHCARD QUESTION
Front
A2L Refrigerant is allowed to be vented because it is a Low GWP refrigerant
Back
False
8.
FLASHCARD QUESTION
Front
Striker Plates AKA Nailer Plates are required when concealing A2L line sets in studs or floor joists.
Back
True
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