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CONVERSION EQUIVALENT 1 - B.T.U. s Heat required to raise 1 lb, of water 1 deg* P REFRIGERATION One ton of refrigeration is the heat equivalent to the melting of ONE TON of ice a t 32° P. in 24 hours, A ton of refrigeration will absorb 200 B.T.tr. per minute or 12,000 B.T.U, per hour^ When waste water is used to cool a regrigeration condenser S y s all the heat which is absorbed by the refrigerationifrom the cooled space must be pieked up and dissipated by the water water, 7 r a ? * * When City water at a reasonable temperature of W or 80° is used t 'l-for cooling a refrigeration system a maximum rise of SO®" can be al­lowed for water through a refrigeration condenser before the head pressure becomes excessive, and the break horse-power on the motor becomes excessive. The maximum rise in the temperature of the water before it is for efficient operation of the refrigeration system determines the minimum amount of water wasted per ton of refrigeration. All facts are proven by our most simple mathematics as stated above in our standard "Conversion equivalent of 1 B.T.U." and "Definition of Refrigeration". For example s i l l 0 If one ton of refrigeration is equal to 200 B.T.U. per mif)1^ and 1 B.T.U. will raise the temperature of 1 lb. of water 1 deg. P. I v and we can stand a 20° rise in the water before it is wasted, we divide 200 B.T.U. by 20° P. 200 s 20 lbs. of water must be wasted