Document ypQNwam8yzkk3jJDRLzrmkeLn

Heating Ventilating Air Conditioning Guide 1938 SYMBOLS FOR HEATING, VENTILATING AND AIR CONDITIONING DRAWINGS5 1. The objects of this standard set of symbols are to insure the correct interpretation of drawings and to conserve drafting room time by establishing simple and unmistakable symbols for the component parts of the heating and ventilating systems. In preparing the list of symbols an effort has been made to follow existing practice in so far as possible but the list cannot be expected to match exactly the existing practice of every drafting room. 1. General . Piping 6. Air Piping 2. Steam Piping 7. Vacuum Piping 3. Condensate Piping 4. Cold Water Piping 8. Gas Piping 9. Refrigerant Piping----- 1-----H------1-----+-- 5. Hot Water Piping 10. Oil Piping 11. Lock and Shield V 23. Indirect Radiator Plan 12. Reducing Valve 24. Indirect Radiator Elevation 13. Diaphragm Valve -do- Jj- 25. Supply Duct, Section 14. Thermostat 15. Radiator Trap Elevation 9 16. Radiator Trap Plan 17. Tube Radiator Plan -i . EZ1 18. Tube Radiator Elevation np 19. Wall Radiator Plan ii 20. Wall Radiator Elevation | | [] 21. Pipe Coil Plan i---->-- 26. Exhaust Duct, Section 27. Butterfly Damper Plan (or Elevation) 28. Butterfly Damper Elevation (or Plan) \ 29. Deflecting Damper Rectangular Pipe 30. Vanes 31. Air Supply Outlet 22. Pipe Coil Elevation 32. Exhaust Inlet El3 IEI 0 t 1 . From A.S.H.V.E. .Code of Minimum Requirements for the Heating and Ventilation of Buildings, edition of 1929, and American Standard Drawings and Drafting Room Practice Graphical'Symbols {American Standards-Association, Z14.2--1935). - -- 836 Chapter 45. Terminology 33. Joint 34. Elbow--90 deg 35. Elbow---45 deg 36. Elbow--Turned Up 37. Elbow--Turned Down 38. Elbow--Long Radius 39. Side Outlet Elbow--Outlet Down 40/ Side Outlet Elbow--Outlet Up 41. Base Elbow 42. Double, Branch Elbow 43. Single Sweep Tee 44. Double Sweep Tee 45. Reducing Elbow 46. Tee 47. Tee--Outlet Up 48. Tee--Outlet Down Flanged 5crrcd Bd and Spigot Welded Soldered -tf- --1-- -e- GO r f*- r f4f4( GHf-- Of- 0-2- Ox- G>-- GHf-- Gf- o >- Ox- O-- r rr 7? U Y r-H-j+ T r X rL-i- je -X3*- -KDH -xOx- -o- -ItOtt- -tet- -xx-. 49. Side Outlet Tee--Outlet Up 50. Side Outlet Tee--Outlet Down 51. Cross X-tit- - * 837