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18 CHAPTER'2 Graphical Symbols'for--Drawings ; iOd W,'
1958 Guide Heating
.1. Air Eliminator
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2,-Anchor 3. Expansion Joint -4. -Hanger or Support
5. Heat Exchanger 6. Heat Transfer Surface, Plan
(Indicate Type Such as Convector) 7. Pump
(Indicate Type Such as Vacuum) 8. Strainer -9. Tank (Designate Type)
10. Thermometer 11. Thermostat 12. Traps
12.1 Boiler Return
12.2 Blast Thermostatic 12.3 Float 12.4 Float and Thermostatic 12.5 Thermostatic 13. Unit Heater (Centrifugal Fan), Plan
14. Unit Heater (Propeller), Plan
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15. Unit Ventilator, Plan
Abbreviations, Symbols, Conversion Factors 0
Graphical Symbols for Drawings
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16.; Valves
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H6.1 Check . -
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16.2 Diaphragm
16.3 Gate . 16.4 Globe- -
16.5 Lock and Shield
16.6 Motor Operated
16.7 Reducing Pressure
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16.8 Relief (Either Pressure or Vacuum) 17. Vent Point Graphical Symbols for Drawings 18. Access Door 19. Adjustable Blank Off '
20. Adjustable Plaque
21. Automatic Dampers
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Ventilating
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22* Canvas Connections
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