Re: Horsepower and Kilowatts
I'll bet that the units rated in horsepower originated in the far east, China, Japan, Korea etc. These units will probably also be rated in btu.
My understanding of the Asian preference for horsepower rating is that it originated as a measure of compressor capacity. We see it sometimes used in the UK by Japanese manufacturers as a measurement indicating an approximate capacity of unit.
Official rating conditions for small unitary end split air conditioners are laid down in international standards (ISO DIS 5151) and in Europe in EN 255 and 814. All these ratings are given in kilowatts.
My favourite unit conversion package, Calc 98, lists no less than six different horse powers to choose from; one is a boiler rating that converts to 9805 Watts, while most others hover around the 740 Watts mark.
It's fair to say that horsepower as a measure of refrigeration capacity is not a precise subject??.
KiloWatts and Celsius for me every time.
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mexicocity hotel