Document Z2eoNayLZo5bQ9Ld6qEbDJQL

HEATING VENTILATING AIR CONDITIONING CUIDE 1942 Graphical Symbols for Drawings 45. Duct (1st Figure, Width; 2nd, Depth) 46. Direction of Flow 47. Inclined Drop in Respect to Air Flow 48. Inclined Rise in Respect to Air Flow 49. Supply Duct Section 50. Exhaust Duct Section 51. Recirculation Duct Section 52. Fresh Air Duct Section 53. Other Duct Sections 54. Register 55. Grille 56. Supply Outlet 57. Exhaust Inlet 58. Top Register or Grille 59. Center Register or Grille 60. Bottom Register or Grille 61. Top and Bottom Register or Grille 62. Ceiling Register or Grille 63. Louver Opening Ductwork [>}<----- 12*20 -------- 12*20 -------- -- 12*20 r^TU-____ (Label) Kitchen xh. R 6 [I -- 11-^-- 11 TR; 20*12- 700Cfm I1 TG* 20 *12-- 700cfm 11 CR 20*12- 700cfm I' CG*20*12- 700cfm 11 BRt 20*12 -- TOOcfm M BG>20*12- 700cfm 11 T&BR 20*12- ear, 700 cfm I1 T6.BG 20 * 12- ea. 700 cfm rrr^iCR 20*12- 700 cfm CG 20* 12-700cfm 64. Adjustable Plaque 850 CHAPTER 47. TERMINOLOGY Graphical Symbols for Drawings 65. Volume Damper 5' *' 66. Deflecting Damper 67. Deflecting Damper, Up 68. Deflecting Damper, Down 69. Adjustable Blank Off Ductwork \1} -- ''-P/an 0 Elev. -* * TR 20*12 70. Turning Vanes 71. Automatic Dampers 72- Canvas Connections- . 73. Fan and Motor With Guard 74. Intake Louvers and Screen 1 851