Compressor-map lookup
14438 published compressor maps — AHRI 540 ten-coefficient polynomials from the manufacturers' own selection data — evaluated at the evaporating and condensing temperatures you name, signed in — every account reads them free.
Open the tool in the app — the search as a tab, with the rating, the envelope and the curves plotted, and any machine a click from a circuit. This page is the doorway: it takes the question and hands it to the app.
Units: SI · US customary
What it is for
A compressor's published map answers capacity and power at a saturated evaporating and condensing temperature pair — the two numbers a circuit settles on. A selection is a point on it; a system is where the coil, the condenser and the map agree, which is what the builder solves. How a machine meets a part load is the next question.