Document 6B3LKb5ov3aBB2NzG9neMeNkg

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 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 !Z x 20 r ^mt- i t /2 20-------------- * -------- 12x20 [3EH---- 12x20 GEU- 12x20 (Labe!) Kitchen Exh. R 3 3 H- 11 TR; 20 x/2 -- 700Cfm |l Tg"20 */2 -- 700Cfm 11 CR 2Qx/2- 700 cfm I* CO*20x/2- 70Qcfm 11 BR, 20*12-- 700 Cfm I' Be"20x/2 - 700Cfm It T&PR 20x/2- ea. 700 cfm M T&BG 20 x/2- ea. 700 cfm itc^lCR 20x12 - 700 cfm ^ C6 20 x/2- 700cfm | L 20 x/2 - 700 Cfm 64. Adjustable Plaque CHAPTER 46. TERMINOLOGY Graphical Symbols for Drawings Ductwork 05 Volume Damper 56. Deflecting Damper 67.. Deflecting Damper, Up 68. Deflecting Damper, Down 69. Adjustable Blank Off 70. Turning Vanes ^1 | TR20x12 71. Automatic Dampers 72. Canvas Connections 73. Fan and Motor With Guard 74. Intake Louvers and Screen 805 4+ 1 :---- Y---------- V-