Machinery's Handbook, 27th Edition

SYMBOLS FOR DRAFTING

Symbols For Drafting

Table 58: Standard Graphical Symbols for Air Conditioning

Capillary tube

Filter line

Compressor

Filter and strainer, line

Compressor, rotary (Enclosed crankcase, belted)

Float, high side

Compressor, reciprocating (open crankcase, belted)

Float, low side

Compressor, reciprocating (open crankcase, direct-drive)

Gage

Motor compressor, reciprocating (direct connected, enclosed crankcase)

Pressures tat

Motor compressor, rotary (direct connected, enclosed crankcase)

Pressure switch

Motor compressor, reciprocating (sealed crankcase)

Pressure switch (with high pressure cut-out)

Motor compressor, rotary (sealed crankcase)

Receiver, horizontal

Condensing Unit (air cooled)

Receiver, vertical

Condensing Unit (water-cooled)

Scale trap

Condenser air cooled (finned, forced air)

Spray pond

Condenser air cooled (finned, static)

Thermal bulb

Condenser water cooled (concentric tube in a tube)

Thermostat (remote bulb)

Condenser water cooled (shell and coil)

Valve, expansion, automatic

Condenser water cooled (shell and tube)

Valve, expansion, hand

Condenser evaporative

Valve, expansion, thermostatic

Valve, compressor suction pressure limiting (throttling type, compressor side)

Cooling unit, finned (natural convection)

Valve, constant pressure, suction

Cooling unit (forced convection)

Valve, evaporator pressure regulating (snap action)

Cooling unit, immersion

Valve, evaporator pressure regulating (thermostatic throttling type)

Cooling tower

Valve, evaporator pressure regulating (throttling type, evaporator side)

Dryer

Valve, magnetic stop

Evaporator, circular (Ceiling type, finned)

Valve, snap action

Evaporator, manifolded (Bare tube, gravity air)

Valve, suction vapor regulating

Evaporator, manifolded (finned, forced air)

Valve suction

Evaporator, manifolded (finned, gravity air)

Valve water

Evaporator, plate coils (headered or manifolded)

Vibration absorver, line

Table 59: Standard Graphical Symbols for Heating and Ventilation

Air eliminator

Access door

Anchor

Adjustable...

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