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18 CHAPTER 2 Graphical Symbols for Drawings' :
1956 Guide Heating
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
-*r
-6=60-n
REC
JL
-Cfl=h
12.2 Blast Thermostatic 12.3 Float 12.4 Float and Thermostatic 12.5 Thermostatic 13. Unit Heater (Centrifugal Fan), Plan
-s-
-Hghfa--dr-tzfr
14. Unit Heater (Propeller), Plan
;i' -
15. Unit Ventilator, Plan' *
Abbreviations, Symbols, Conversion Factors Graphical Symbols for Drawings 16. Valves
16.1 Check 16.2 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
19 Heating
A-
ixh
<s>
-VENT
Graphical Symbols for Drawings 18. Access Door 19. Adjustable Blank Off
20. Adjustable Plaque
Ventilating
r........ :-:_3
t---- ad
TR 20X12
\ rT f|p-20xi2-7oocrm
3.'7LTZ7T
/P20V- 700 cf m
21. Automatic Dampers
22. Canvas Connections