KEATING VENTILATING AIR CONDITIONING GUIDE 1942 Fusion welding, commonly used in erection of piping, is defined as the process of joining metal parts in the molten, or molten and vapor states, without the application of mechanical pressure or blows.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 either a temperature or pressure controller provides a safety feature against excessive pressures on the high side of the compressor.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1943 Having only half the volatile matter content of the more abundant bituminous coals it can be burned with less production of smoke, and it is sometimes called smokeless coal.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1943 a wet-bulb temperature down to 20 per cent moisture, where w = 0.25, the corresponding humidity can be computed by the use of Equation 4 or by reading directly from.the diagram, the value being 0.0392.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1944 diffusion of the heat from the basement.

HEATING VENTILATING AIR CONDITIONING CUIDE 1944 it is necessary that the unit heaters draw air from outside in enough volume to provide a rapid air change and that they operate in conjunction, with ventilators or fans for exhausting the moisture-laden air.

HEATING VENTILATING AIR CONDITIONING CUIDE 1944 to achieve the desired conditions.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1944 reduces the capacity, but can be largely avoided by proper layout or by the use of directing baffles.

HEATINC VENT1LATINC AIR CONDITIONING GUIDE 1944 on the driving motor, or fan, may be changed to vary the speed of the fan thus altering the air volume.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1944 supply opening, and ahead of the acoustic duct lining if used.

HEATING VENTILATING AIR CONDITIONING GUIDE 1944 of nori-conditioned rooms.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1944 than 200 fpm at the point of origin.

Copyright 1945 by. the American Society of Heating and Ventilating Engineers AND BY IT Dedicated -To the Advancement of ' The Profession - - --------- . -- AND Its Allied Industries TEXT AND ILLUSTRATIONS ARE FlJJLLY PRO TECTED .

230 Chapter 12 1945 Guide Table 1.

390 Chapter 21 1945 Guide Velocities and decibel rating^ for the various types of unit heaters are given in Table 1.