Which of the following is an example of baseline condenser data?

• A. Temperature of Air In
• B. Condenser Coil Color
• C. Lubricant Type
• D. Crankcase Vent Temperature

Answer: (A)

Baseline data are the starting reference measurements used to judge future performance. For a condenser, the temperature of the air entering the condenser is a fundamental reference because it directly influences the heat rejection rate the condenser must achieve. If the inlet air temperature changes, the condenser’s ability to reject heat changes too, so recording this initial air-in temperature gives you a meaningful benchmark to compare against as conditions evolve.

The other options don’t serve as useful baseline condenser measurements: condenser coil color is cosmetic and doesn’t reflect performance; lubricant type is a maintenance detail, not a real-time performance parameter; crankcase vent temperature relates to the compressor’s lubrication system, not the condenser’s heat rejection data.