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HVAC
BPI AC & Heat Pump Professional
Health & Safety
Knowledge Check
Health & Safety
Knowledge Check
Knowledge Check
1 / 15
A technician is servicing a new R-454B split system. Which vacuum pump should they use?
A
A spark-proof (non-sparking) vacuum pump rated for A2L refrigerants
B
A vacuum pump rated for A3 refrigerants only
C
Any standard vacuum pump rated for 500 microns
D
No vacuum pump is needed since A2L refrigerants are safe
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