ASE S7 Air Conditioning Systems & Controls (School Bus) Practice Questions - ASE S7 - Air Conditioning Systems & Controls (School Bus) Certification Exam

The correct way to determine the refrigerant charge for a school bus A/C system is to:

Charge until the low side reads exactly 30 psi Add one full 30 lb cylinder per bus Charge until the sight glass clears Charge by weight per the manufacturer underhood label or service data

Correct Answer:

Charge by weight per the manufacturer underhood label or service data

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