HEATING VENTILATING AIR CONDITIONING CUIDE 1940 Table 1.

HEATING VENTILATING AIR CONDITIONING CUIDE 1940 * Other units are available in which a target spray humidifier is substituted for the evaporative type thereby supplying humidification in winter for application in rooms with other existing heat sources.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1940 5.

HEATING .VENTILATING AIR CONDITIONING GUIDE 1940 United States Radiator Corp., 982Westinghouse Elec. & Mfg.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 LAWRENCE, Lewis F.; Jr. (7 1938) Field Engr.

Vr'Hi HEATING VENTILATING AIR CONDITIONING CUIDE 1941 ment of comfort with relative humidities as high as 80 per cent, provided the effective temperature is between 70 and 75 deg.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1941 Table II.

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 There are three general types of mechanical return devices in common use, namely, (1) the mechanical return trap, (2) the condensation return pumpjand (3) the vacuum return line pump.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 out air spaces in concrete and tile blocks, and walls in which there are parallel paths for heat flow through materials having different heat resistances.

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 Velocities through registers may be reduced by the use of registers larger than the connecting pipes.

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 A diagrammatic representation of a typical steam ejector water cooling system is shown in Fig. 3.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 so as to admit steam to the heating coil whenever heat is required so as to maintain a fixed temperature in the space.

HEATING VENTILATINC AIR CONDITIONING GUIDE 1942 (3) Manual contactor or reduced voltage compensator with overload and low voltage release. (4) Drum switch equipped with latch coil to give low voltage release. 2.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 brought up to 50 per cent humidity at 150 F.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 Vapor Heating System: A steam heating system which operates under pressures at or near atmospheric and which returns the condensation to the boiler or receiver by gravity.