InstallationQuestion 27 of 110
Why must condensate from a condensing furnace or cooling coil be routed to an approved drain?
a.To increase system efficiency
b.To prevent water damage and dispose of condensate safely
c.To raise refrigerant subcooling
d.To supply combustion air
Explanation
Cooling coils and condensing furnaces generate liquid condensate that must drain to an approved location to prevent overflow, water damage, and microbial growth. The CMC requires proper slope, trapping where needed, and a secondary drain or float switch in many installations. Improper drainage is a common cause of ceiling damage.
Law Reference: 2022 California Mechanical Code (CMC)Practice all 110 questions free — no signup required.
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