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HVAC Electrical Symbols
Electrical symbols for HVAC NOCTI exam
39
Other
12th Grade
03/02/2012
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Term
capacitor
 Definition
[image]
Term
coil
 Definition
[image]
Term
fuse
 Definition
[image]
Term
fusible link
 Definition
[image]
Term

ground connection

(earth)

 Definition
[image]
Term
multiple conductor cable
 Definition
[image]
Term
thermocouple
 Definition
[image]
Term
bimetal switch
 Definition
[image]
Term
solenoid
 Definition
[image]
Term

temperature switch

(opens on rise)

 Definition
[image]
Term

contacts

Normally Open (N. O.)

 Definition
[image]
Term

contacts

Normally Closed (N. C.)

 Definition
[image]
Term
switches disconnect
 Definition
[image]
Term
single pole single throw switch
 Definition
[image]
Term
single pole double throw switch
 Definition
[image]
Term

push button

(normally open)

 Definition
[image]
Term

Push Button

(normally closed)

 Definition
[image]
Term

temperature switch

(closed on rise)

 Definition
[image]
Term

ground connection

(mechanical)

 Definition
[image]
Term
transformer
 Definition
[image]
Term
thermister
 Definition
[image]
Term
resistor
 Definition
[image]
Term
resistance heater
 Definition
[image]
Term
male connector
 Definition
[image]
Term
female connector
 Definition
[image]
Term
light
 Definition
[image]
Term
female recepticle
 Definition
[image]
Term
male plug
 Definition
[image]
Term
thermal overload
 Definition
[image]
Term
single phase motor
 Definition
[image]
Term
permanent split capacitor motor
 Definition
[image]
Term
double pole double throw switch
 Definition
[image]
Term
small motor
 Definition
[image]
Term
ac power source
 Definition
[image]
Term
dc power source
 Definition
[image]
Term
centrifugal switch
 Definition
[image]
Term
three phase motor
 Definition
[image]
Term

pressure switch

opens on pressure rise

 Definition
[image]
Term

pressure switch

opens on pressure drop

 Definition
[image]
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