536 Chapter 29 1945 Guide 400 rprivand requires 4 hp.

574 Chapter 51 1945 Guide Fan outlet velocities are discussed in Chapter 29 and will not be dealt ..with here except to indicate. that fan noises should be given proper consideration.

682 Chapter 39 1945 Guide In many processes; the optimum desired air conditions are variable .'

736_____________ ____________ Chapter 43 1945 Guide (4) general reduction in maintenance costs.

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112\ -- CHAPTER 5 1946 Guide of pipe.

894 CHAPTER SO 1946 Guide gravity circulation from the boiler, as, when there is a. sudden demand followed by an inflow.of cold water, the bottom of a steam heating trans fer element always should be at least 30. in. above the boiler water line, and the steam and condensate return pipes should be of liberal size.

28 ^Heating, 'Ventildting Air VConditioning-.

2 CHAPTER 1 1948 Guide Blow (throw): In air distribution, the distance ah air stream travels from an outlet to a position at which air motion along the axis reduces to a velocity of 50 fpm.

278 CHAPTER 15 1948 Guide Table 15.

302 CHAPTER 16 1948 Guide '/ .

610 CHAPTER 34 1948 Guide safety pilot closes the gas valve, thus eliminating the danger of delivering gas to the burner without ignition. 5.

658 CHAPTER 37 1948 Guide pumping unit.

176 CHAPTER 9 1949 Guide; the wind, in splashing therefrom, will create a suction.

636 CHAPTER 25 1949 Guide low temperatures without dangerof freezing is therefore obtained.