Prior to making non-major repairs (such as replacing a main liquid line dehydrator dessicant cartridge) of a large, multi-box refrigeration system, what should be done before opening the system?
A
recover the entire refrigerant charge to a suitable recovery cylinder, then isolate the dehydrator
B
pump down the low side and liquid line to the deepest achievable vacuum by closing the king valve, then isolate the dehydrator
C
pump down the low side and liquid line to 0 psig by closing the king valve, then isolate the dehydrator
D
isolate the dehydrator then release the remaining refrigerant in the dehydrator to the atmosphere
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Question 1 / 205eccef9dbacbc34ba4d460b4
Question 1 of 205eccef9dbacbc34ba4d460b4
Prior to making non-major repairs (such as replacing a main liquid line dehydrator dessicant cartridge) of a large, multi-box refrigeration system, what should be done before opening the system?
Prior to making non-major repairs (such as replacing a main liquid line dehydrator dessicant cartridge) of a large, multi-box refrigeration system, what should be done before opening the system?