HEATING VENTILATING AIR CONDITIONING GUIDE. 1944 There are three general types of mechanical return devices in common use, namely, (1) the mechanical return trap, (2) the condensation return pump, and (3) the vacuum return line pump.

HEATINC VENTILATINC AIR CONDITIONING GUIDE 1944 Conduit (G) is of cast-iron construction, assembled with lead joints and is water-tight, if properly laid.

HEATINC VENTILATING .AIR CONDITIONING CUIDE 1944 The Doherty rale is divided into three elements: (a) A charge based upon demand.

HEATING VENTILATING AIR CONDITIONING CUIDE 1944 Centimeter-gram-second (system)_____ .

HEATING VENTILATINC AIR CONDITIONING GUIDE 1944 Graphical' Symbols for Drawings 94.

340 Chapter 18 1945 Guide register temperature is to be retained at the value of 175 F as recommended.

760 Chapter 45 1945 Guide ceilings even panels may produce an excessive directional heating effect if-all the heat necessary in a cold climate.is introduced from above.

778 Chapter-46 1945 Guide . the cast-iron sections is the same as in heating boilers, but internally ,the; cores are changed to enable- the sections to withstand the city water pressure.

GAMMILL.

42 CHAPTER 3 1946 Guide 43.

736 '/ Hinges '/ CHAPTER 40 1946 Guide ///,/// Either two high vclocity 1777777, or air spills down ward Fig. 7.

788 CHAPTER 43 :1946' Guide Cooling Load The method of determining the cooling load for a conditioned space or spaces is outlined in Chapter 15.

916 ~ :____________ ^ . - :. ~ -1946 Guide Fitzgibbons Boiler Co., Inc., 1156* Fitzgibbons Boiler Co..

136 CHAPTER 6 1948 Guide " Table 18.

238 Table 1.