/X HEATING VENTILATING AIR CONDITIONING GUIDE 1940 3.

T a b l e 1.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 Where a number of rooms are to be heated and ventilated through one central fan system it is customary to provide tempering heating units, automatically controlled to provide a minimum temperature for venti lation only and additional heating units to supply the heating require ments.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 If the conditions are such that the air may circulate through cracks and crevices in the insulation, the increases may be far greater than those given.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 A.S.H.V.E.

HEATINC VENTILATINC AIR CONDITIONING CUIDE 1941 Velocities through registers may be reduced by the use of registers larger than the connecting pipes.'

HEATINC VENTILATING AIR CONDITIONING CUIDE 1941 Capacity Tons 0 to 5 5 to 25 25 to 50 50 to 400 400 and Over Table 10.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 most dry filters are cleaned by replacing an inexpensive filter sheet, the useful life of these sheets often may be lengthened by vibrating or vacuum cleaning.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1941 are given for each application.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1942 Table 2.

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 4.

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 Table 5. 100Thermal Expansion of Pipe in Inches per ft* (For superheated steam and other fluids refer to temperature column) I - - - -- Saturated Steam Pressure VIanccuhuam of H*.

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 duct area before the outlet.

Air System Equipment unuidi!

HEATING VENTILATING AIR CONDITIONING GUIDE 1943 Fuel used over any period is, according to the theory of the degree-day, proportional to the number of degree-days during the period.