Document 5kyK0dxqNMy1DOz4d4vQLvkoD
HEATING VENTILATING AIR CONDITIONING GUIDE 1942
Graphical Symbols for Drawings
75. Heat Transfer Surface, Plan 76. Wall Radiator, Plan 77. Wall Radiator on Ceiling, Plan
Heating and Ventilating .
i " n
78. Unit Heater (Propeller), Plan
79. Unit Heater (Centrifugal Fan), Plan 80. Unit Ventilator, Plan
Traps 81. Thermostatic 82. Blast Thermostatic 83. Float and Thermostatic 84. Float 85. Boiler Return
Valves 86. Reducing Pressure 87. Air Line 88. Lock and Shield 89. Diaphragm 90. Air Eliminator 91. Strainer 92. Thermometer 93. Thermostat
0---------------------------
-------------------------- -
o-----------------------
----------------------- D
----------- ($3
--- ----------------------- -------------------------
----------------e----------- -- D
852
CHAPTER 47. TERMINOLOGY
Graphical Symbols for Drawings
94. Thermostat (Self Contained)
110. Low Side Float
Refrigerating
95. Thermostat (Remote Bulb)
<r 111. Gage
2.
96. Pressurestat
97. Hand Expansion Valve
98. Automatic Expansion Valve
99. Thermostatic Expansion Valve
-da
-j "
112. Finned Type Cooling Unit, Natural Convection
113. Pipe Coil
114. Forced Convection Cooling Unit
100. Evaporator Press. Regu lating Valve, Throttling
Type
-TP101. Evaporator Press,Regu lating Valve, Thermo static Throttling Type
102. Evaporator Press. Regu lating Valve, Snap-Ac
-(sp-
tion Valve
115. Immersion Cooling Unit
116. Ice Making Unit
117. Heat Interchanger 118. Condensing Unit,
*
-6=6-
103. Compressor Suction Pressure Limiting Valve, Throttling Type
-si 6-119. Condensing Unit, Water Cooled
104. Hand Shut Off Valve 105. Thermal Bulb 106. Scale Trap
120. Compressor -o- 121: Cooling Tower
8
78
107. Dryer 108. Strainer 109. High Side Float
-ra122. Evaporative Con denser
123. Solenoid Valve
124. Pressurestat With High Pressure Cut-
Out
-Qf.D-
853