HEATING VENTILATINC AIR CONDITIONING GUIDE 1943 during the past few years, there still remain those who believe in a superior, stimulating quality of outdoor air (particularly country, moun tain and seashore air) under ideal weather conditions, as compared with properly conditioned air.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1943 Table 10.

HEATING VENTILATING AIR CONDITIONING GUIDE 1943 shown that good results may be expected when the radius to the center of the elbow is 1.5 times the pipe diameter or duct width parallel to the radius.

HEATING VENTILATING AIR CONDITIONING GUIDE 1943 Table 2.

HEATINC VENTILAT1NC AIR CONDITIONING GUIDE 1943 Heating Cycle Similar fan systems are used for heating, as well as for ventilating occupied spaces, by increasing the number of coils to four or five.

HEATING VENTILATING AIR CONDITIONING GUIDE 1943 limits may be regulated further according to the capacity of the fan and the effective performance of the hoods and the duct system-. .

HEATINC VENTILATING AIR CONDITIONING GUIDE 1944 warm side of the insulation construction, which may be a vapor-proof paper properly applied under the plaster or a vapor-proof finish on the interior surface of the wall11.

HEATING VENTILATING AIR CONDITIONING GUIDE 1944 effective temperature difference of 15 F is being maintained at the maxi mum room sensible heat load, this temperature difference must be reduced by means of heating to 7.5 F at half of the sensible heat load.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1944 of the float regulator, or by properly charging the plant in the case of the high pressure float drainer.

HEATING VENTILATINC AIR CONDITIONING GUIDE 1944 1.

658 Chapter 36 1945 Guide in removing particles of 15 to'20 microns and smaller; besides dusts and smoke85.

rZe^` '.av/r' I Heating Ventilating 1 Air Conditioning 1 GUIDE 1946 An Instrument of Service prepared for the Profession--Containing a Technical Data Section OP REFERENCE MATERIAL ON THE DESIGN AND SPECIFICATION OF HEATINGj VENTILATING AND AIR CONDITIONING SYSTEMS BASED ON--THE TrANSACTIONS--THE INVESTIGATIONS OF THE RESEARCH LABORATORY AND CO OPERATING Institutions--and the Practice of the Members and Friends of the Society together with-a Manufacturers' Catalog Data Section Containing Essential and Reliable Information Concerning Modern Equipment also Thfc Roll of Membership of the Society , WITH Complete Indexes to Technical and Catalog.

632 CHAPTER 39 1946 Guide Table 2.

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.

96 CHAPTER 4 .1948 Guide T, = temperature, Fahrenheit degrees, absolute. 7b -- standard temperature to which correction is to be made, Fahrenheit degrees absolute.