Document ZJbQeaNp8OM53D1k8y8OJm11p
18 '
CHAPTER 2
Graphical Symbols for Drawings
1. Air Eliminator
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
1951 Guide Heating
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15i Unit Ventilator, Plan
Abbreviations and Symbols
*
Graphical Symbols' for Drawings
16. Valves 16.1 Check
1622 Diaphragm
16.3 Gate 16.4 Globe
16.5 Lock and Shield
16.6 Motor Operated 16.7 Reducing Pressure
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 22. Canvas Connections
19 Healing
A
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VENT
Ventilating
TL AD
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TR 20X12
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