Document 5DBQEjE7J2ROZ2mNyEjjDGVR8

1 HEATING VENTILATING AIR CONDITIONING GUIDE 1943 Graphical Symbols for Drawings . Heating 1. High Pressure Steam 2. Medium Pressure Steam. 3. Low Pressure Steam 4. High Pressure Return 5. Medium Pressure Return 6. Low Pressure Return 7. Boiler Blow Off 8. Condensate or Vacuum Pump Discharge 9. Feedwater Pump Discharge 10. Make Up Water 11. Air Relief Line 12. Fuel Oil Flow 13. Fuel Oil Return 14. Fuel Oil Tank Vent 15. Compressed Air 16. Hot Water Heating Supply 17. Hot Water Heating Return Air Conditioning 18. Refrigerant Discharge 19. Refrigerant Suction 20. Condenser Water Flow 21. Condenser Water Return 22. Circulating Chilled or Hot Wafer Flow 23. Circulating Chilled or Hot Water Return 24. Make Up Water 25. Humidification Line 26. Drain 27. Brine Supply 28. Brine Return Piping ----------------------FO F-------------------------------------- :--A------------- ;---------- RD -C----------------;-------CH----------------------- Plumbing 29. Soil, Waste or Leader (Above Grade) 30. Soil, Waste or Leader (Below Grade) 31. Vent 32. Cold Water 33. Hot Water .. . - 34. Hot Water Return 35. Fire Line ~ 36. Gas- 37. Acid Waste 38. Drinking Water Flow 39. Drinking Water Return 40. Vacuum Cleaning 41. Compressed Air ------------------.------------------------------- ----------------- .___ ' -----------^ ` --- -------------- . -----f----------------- &---- -------- ' ------------- Aclp -------:------------------------------___ v________ ______ ...... A Sprinklers ...... 42..Main Supplies' . 43. Branch and Head . 44. Drain ' j: .' -------------s-- . . o_____ I.__ -__ 1,____ |____ 856 CHAPTER 48. ABBREVIATIONS, SYMBOLS, STANDARDS 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 /2 x 20 t ... | -12x20 - 12x20 E2H -. 12x20 & - 12x20 __ (.Label) Kitchen Exh. R G -H- TR; 20 x/2-- 700 Cfm Tg"20x!2 - 700 cfm CR^ 2Qx!2-- 700cfm C<o 20*12- 700cfm BR) 20 x/2 - 7OOcfm 56*20*12-- 700 cfm T6BR 20*12- ea. 700 Cfm T6.BG -20*12-ea. 700 cfm CR 20*12 - 700 cfm IS C 20 *12-700cfm 64. Adjustable Plaque