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Rule of thumb heat loss w m22/15/2023 ![]() When choosing an air conditioner, usually a 1 HP (horse power) equipment is able to remove 9,000 BTU/hr of heat. 1 BTU/hr is the heat energy needed to increase 1 pound of water by 1☏. The unit used to measure heat load is BTU/hr. Study shows that this combination of temperature and RH is the most conducive for the human body. The typical design is set to 24☌ temperature and 55% Relative Humidity. The cycling on and off of the compressor will lead to shorter life span of the compressor besides having to spend more on the unit price and installation cost.Īn undersized unit will not be able to cool the room properly and more so if the weather is hot.Ĭooling capacity for a room is defined as the heat load in a room that have to be removed in order to achieve a certain room temperature and humidity. On top of that, the electricity bill will be high as the compressor turns on and off too often.Įvery time the on/off type of compressor starts to run, its power consumption is 6 times higher than when it is running steadily. It will also cause discomfort to the occupants as the dehumidfication of the room is not properly done. ![]()
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