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Q1: The _ is nothing more than a
Q2: The temperature on both sides of an
Q8: When servicing an R-410A window air conditioner,
Q9: Rooftop units are often positioned _ the
Q14: Since many new replacement refrigerants are being
Q16: Cad cells or photo cells are usually
Q18: _ is a colorless and odorless gas
Q23: Explain why the external equalizer line on
Q25: The evaporator of a window air conditioner
Q27: Two types of shaft seals used for