Document qm9K75G1MmD5d21oDvNrM5eY5

18 CHAPTER 2 Graphical Symbols for Drawings 1949 Guide . < Ductwork 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 60. Exhaust Duct Section 51. Recirculation Duct Section 52. Fresh Air Duct Section 53. Other Duct Sections 54. Register 65. Grille 56. 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 Sh & IMF II 12*20 12*20 12 x 20 (Labe!) Kitchen Exh. R 6 -H- TR. 20*12- 700cfm T<5*20*12- 700 Cfm CR -20*12-lOOcf.m. CG*2Ox/2-- 700Cfm BR 20*12-- 700cfm 20*12--- 700cfm T6BR 20*12- ea. 700 cfm T6.BG 2Ox/2- ea. 700 cfm rc--vtCR 20*12 - 700 Cfm CG 20 *!2~700 cfm 64. Adjustable Plaque Abbreviations and Symbols Graphical Symbols for Drawings 65. Volume Damper 66. Deflecting Damper 67. Deflecting Damper, Up 68. Deflecting Damper, Down 69. Adjustable Blank Off 70. Turning Vanes 71. Automatic Dampers 72. Canvas Connections 73. Fan and Motor With Guard 19 Ductwork \11 i ' - '-Plan '/ E/ev. TR20*/2 "V- 74. Intake Louvers and Screen 'Y--------- +