NV C-21B Air Conditioning Practice Questions - Nevada C-21B Air Conditioning Contractor Examination Exam

Where overflow from a cooling-coil drain pan would damage the building, UMC 2018 requires which additional protection?

A larger primary drain only, with no secondary device A plugged overflow opening so the pan can hold more water A hose from the pan to the roof scupper A secondary drain, an auxiliary pan with its own drain, or a water-level device that shuts the equipment off

Correct Answer:

A secondary drain, an auxiliary pan with its own drain, or a water-level device that shuts the equipment off

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