HEATING VENTILATING AIR CONDITIONING GUIDE 1940 Pelham Manor-- White.

"T HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 MAXIMUM DEMANDS AND LOAD FACTORS In one form of district heating rates, a portion of the charge is based upon the maximum demand of the building.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 3.

HEATING VENTILATINC AIR CONDITIONING CUIDE 1941 Rapid condensation of steam, especially during heating-up periods, is characteristic of this, type of equipment.

T a b l e 2.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 factors in the increased susceptibility to gastro-intestinal disorders in hot summer weather.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 Table 4.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 a second-stage reduction.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 Use of socket welding fittings generally is restricted to nominal pipe size 3 in. and smaller in which range commercial fittings are available.

HEATINC VENTILATINC AIR CONDITIONING CUIDE 1942 3.

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 Table 7 Pressure Losses in Dichlorodifluoromethane Discharge or Hot Gas Lines1 Pressure Drop in Pounds per Square Inch per 100 Ftb Capacity Btu pbb Hour Line Sizes, Inches K H K lM ik ik 2H 2K m m 10,000 15.000 20.000 25.000 30.000 40.000 50.000 60.000 70,000 80,000 90,000 100,000 125.000 150.000 175.000 200,000 250.000 300.000 400.000 500.000 600.000 800,000 1,000,000 1,250,000 1,500,000 2,000,000 2.3 4.9 8.5 1.0 2.0 3.4 5.3 7.5 0.6 1.0 1.7 0.6 2.6 3.6 6.4 9.8 0.9 1.2 2.1 0.5 0.7 3.1 4.4 6.0 1.0 1.3 1.9 8.0 10.2 2.5 3.1 3.8 6.0 8.5 11.6 -- 0.5 0.7 0.9 1.1 1.4 1.7 2.6 3.8 5.1 6.7 10.4 0.5 0.7 1.0 1.3 1.7 2.6 3.7 6.7 10.5 0.6 0.9 1.2 2.2 3.5 5.0 9.0 0.5 0.9 1.5 2.1 3.8 5.8 9.5 / 0.7 1-0 1-8 2.9 4.4 6.4 11.3 Soft annealed copper tubing up to and including % in. outside diameter, Hard copper pipe % in. outside diameter and larger. bLength of tubing includes the average number of fittings. control and regulating valves must be added to the other pipe losses to' determine the total drop.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 offices, hospitals, and, most of all, radio broadcasting and movie sound studios, present a real problem which must be intelligently attacked if a satisfactory installation is to be made.

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 TYPES OF AUTOMATIC CONTROL Operating Medium or Source of Power Supply Automatic control systems may be classified in three broad groups based upon their primary operating media or sources of power, as follows: 1.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 Example 8: An apartment building has a hot water requirement as follows: 60 lavatories............................ ..........:.....................................

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 HATCH, O.