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American Society of Heating and Ventilating Engineers Guide, 1930 Second: The- period of occupancy should be taken into account, since much heat is wasted if office-hour temperatures are maintained during. 24 hours for each day of the entire heating season.

American Society of Heating and Ventilating Engineers Guide, 1930 T a b le 2.

American Society of Heating and Ventilating Engineers Guide, 1930 High-pressure float, and alternating traps are usually provided with glass water gages, drain cocks and air-relief cocks or automatic air-relief valves.

American Society of Heating and Ventilating Engineers Guide 4For round flues. - - ds (d - diameter in inches) 1931 For squareflues, (.s = side of flue in inches) In Formula 1, the quantity --NW--2*- expresses the proportion of the to draft used to produce velocity and to overcome friction due to fl0w gases in the stack itself.

of andAmerican Society Heating Ventilating Engineers Guide m Inlets and Outlets in General *1931 When there is no heat loss from the room being ventilated, the em* air for ventilating purposes may be at very nearly the same temper ' as the air in the room, and the air may be moved across the room1 * the inlets and outlets may be opposite each other.

American Society of Heating and Ventilating Engineers Guide, 1932 where Dt -- theoretical draft intensity created by pressure transformer, inches of water. hi = draft loss due to friction in pressure transformer, inches of water. hF = draft loss through the fuel- bed, inches of water. hB = draft loss through the boiler and setting, inches of water. hBr = draft loss through the breeching, inches of water. hv = draft loss due to velocity, inches of water.

American Society of Heating and Ventilating Engineers Guide, 1934 Note.-- T o determ ine capacity a t any steam pressure and entering tem perature, m u ltip ly constant fro m table by rated capacity a t 00 F entering and 2 lb pressure.

\ American Society of Heating and Ventilating Engineers Guide, 1934 The results of tests conducted at the University of Illinois are shown in Figs. 1 and 2s.

American Society of Heating and Ventilating Engineers Guide, 1934 Table 4.

American Society of Heating and Ventilating Engineers Guide, 1935 So!

American Society of Heating and Ventilating Engineers Guide, 1936 flows to the evaporator through an expansion valve which reduces its pressure arid regulates its flow.