Under EPA's regulations, which of the following methods can be used to pressurize an R11 or R123 system for the purpose of openi ng the system for a non-major repair?
1 answer:
Answer:
(A) Adding Nitrogen
Explanation:
R11 or R123 are flammable substance under certain conditions when mixed with Oxygen, adding Nitrogen is a safety procedure used in displacing any R11 or R123 which are considered as hazardous when mixed with Oxygen.
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