If you find the pressure of a refrigeration system containing a Class I or Class II refrigerant to be opened for the accomplishment of repairs is 0 psig, what must be done?
• EPA refrigerant recovery requirements for Class I (CFC) and Class II (HCFC) refrigerants when servicing systems • Meaning of a gauge reading of 0 psig compared to actual system pressure and presence of refrigerant • Difference between recovering, recycling, and reclaiming refrigerant
• If a system reads 0 psig, does that automatically mean it is completely empty of refrigerant, or could there still be refrigerant present in another form or at a different pressure? • What do the environmental rules require you to do with any Class I or II refrigerant that is still in a system before opening it for repairs? • Which options would clearly violate the idea of minimizing refrigerant release to the atmosphere?
• Confirm that Class I and Class II refrigerants must not be intentionally vented to the atmosphere during service or repair • Check which answer choices involve dealing with both liquid and vapor versus only one phase • Verify which option is most consistent with proper environmental handling (recovery and reclamation) rather than just leaving it or assuming none is present
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