Document 29vQB73LB4J08aknY9rO3Zmb

18 CHAPTER 2 1950- Guide' Abbreviations and Symbols Graphical Symbols for Drawings 45. Duct (lst.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 64. Register 55. Grille 66. Supply Outlet 57. Exhaust Inlet 68. 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 Graphical Symbols for Drawings 65. Volume Damper - -- 12*20 Hh -- 12* 20 USh -- 12*20 _ (Labe!) Kitchen Exh. R 6 II -H- 11 TR; 20*12- 700cfm I' 70*20*12-700cfm |i CR< 20*12- 100cfm I' CG"20*12-- 700Cfm 11 BR, 20 *12-700cfm U BG* 20 *12 -700cfm j 11 T&BR 20*12- ea. 700 cfm I1 Ts.BG 20 *12-ea. 700 cfm . rc--qCR 20*12- 700 Cfm I^C 20*12--700cfm 66. Deflecting Damper i 67. Deflecting Damper, Up j 68. Deflecting Damper, Down | 69. Adjustable Blank 09 70. Turning Vanes 71. Automatic Dampers 72. Canvas Connections 73. Fan and Motor With Guard 64. Adjustable Plaque 74. Intake Louvers and Screen > 19 Ductwork '--Plan ; -p*.................... 'lev. L--U I - li ] .. TR 20x12 /"