Heating and ventilating buildings : a manual for heating engineers and architects . Fig. 245.—Arrangement of Blower and Heater, MECHANICAL VENTILATING SYSTEMS. 381 Fig. 245 is shown another stylo of blower and heater in whichthe cold-air flue is located above the hot-air flue. 168. Volume- or Regulating-dampers.—These dampersare used at the place where the horizontal flues for hot and coldair join a vertical flue leading to the room to be dampers are made in a variety of ways, but in such amanner that one flue will be opened as the other is closed, soas to provide the discharge of
Heating and ventilating buildings : a manual for heating engineers and architects . Fig. 245.—Arrangement of Blower and Heater, MECHANICAL VENTILATING SYSTEMS. 381 Fig. 245 is shown another stylo of blower and heater in whichthe cold-air flue is located above the hot-air flue. 168. Volume- or Regulating-dampers.—These dampersare used at the place where the horizontal flues for hot and coldair join a vertical flue leading to the room to be dampers are made in a variety of ways, but in such amanner that one flue will be opened as the other is closed, soas to provide the discharge of a constant volume of air. One form of damper is shown in Fig. 246, consisting oftwo planes or disks mounted at right angles on the same shaftand so connected that the hot-air pipe will be closed as thecold-air pipe is opened and vice versa. The damper in thefigure is shown as operated by a thermostat, but it couldreadily be arranged to be operated by band from the room tobe warmed. gggggggg J I l-!,c2r^3
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
