Question

question # 18 which of the following is a \high - pressure refrigerant\ under epa section 608 regulations? a r - 410a b r - 113 c r - 123 d r - 11

Explanation:

R - 410A is a commonly - used high - pressure refrigerant. R - 113, R - 123, and R - 11 are not high - pressure refrigerants under typical classifications relevant to HVAC and refrigeration systems.

Answer:

A. R - 410A