326.

: 340 CHAPTER 18 1946 Guide large push nipples at top to permit-the circulation of water between adjacent sections at both the water line and bottom of the boiler, which is necessary to enable the use of an indirect water heater with the boiler for summer-winter hot water supply.

360 CHAPTER 19 1946 Guide To *= temperature of air surrounding the chimney, Fahrenheit degrees absolute.

388 CHAPTER 20 .1946 Guide Table 8.

Insulation ftDSCO PRODUCTS for STEAM SERVICE American District Steam Company North Tonawanda.N.Y IN BUSINESS OVER 65 YEARS Branches and Agents in Principal Cities Tile-Conduit with ADSCO Filler Insulation-- a "Fiberglas" Product OVER 65 YEARS EXPERIENCE IS BUILT INTO THE DESIGN AND MANUFACTURE OF DEPENDABLE ADSCO PRODUCTS FOR PIPE LINES For over 65 years ADSCO engineers have specialized in the design and appli cation of pipe fittings and accessory equip ment for underground and surface steam, water, oil and other piping systems.

^:FERRARAvc Antiiony , Xr (/l >1944),Tartri< !

80 - or, by rearrangement, CHAPTER 4 1948 Guide h.

542 CHAPTER 28 1948 Guide Table 11.

662 CHAPTER 37 1948 Guide Steam Jet Refrigerating Condensers: 1030 to 1150 Btu per pound of steam.

' Page SUPREME AIR FILTER CO., 126 West 2ist St., New York 11, N.

328 CHAPTER 16 1949 Guide?

426 CHAPTER 20 1949 Guide.; Table 2.

468: CHAPTER 23 1949 Guide-' when the boiler is steaming under pressure conditions which would prevent the return of condensate by. gravity-- .The typical connections for an auto; matic return trap are illustrated in Fig. 13. : Each heating unit in a vapor system, as in all two-pipe systems, is pro vided with a'graduated or modulating valve which permits the control of heat in the radiator by varying the opening of .the valve.

746 CHAPTER 39 1949 Guide the space (or in some cases from a secondary cooling fluid such as brine or cold water) to the refrigerant.

764 CHAPTER 39 -1949'Guide heat required will be from one and one-half to. five times as much as the heat extracted in the evaporator.; cooling water requirements are propor tionally high.