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Electrical Component

QuestionAnswer
automatic changeove term used to describe thermostats that switch automatically between the heating and cooling modes of operation
bimetal or bimetal overloads metal strips made up of two dissimilar metals that expand and contract at different rates at different temperatures; see also bimetal strips
bimetal strips metal strips made up of two dissimilar metals that expand and contract at different rates at different temperatures
control circuit circuit that is made up of control devices such as thermostats, relay coils, pressure controls, and safety switches
control transformer device that creates the voltage supply for the control circuit
fan-limit switch control device that incorporates both the fan switch and the limit switch
in-line fuse low amperage fuse in the control circuit that protects the control transformer from excessive current
limit switch safety device that de-energizes heating equipment if unsafe temperature conditions exist
manual reset device feature that requires an individual to physically reset the device
multistage thermostat thermostat that can control more than one heating or cooling device at any given time
multitap transformer control transformer that is wired for use with multiple primary voltages
negative temperature coefficient (NTC) thermistor that experiences a decrease in resistance as its temperature increases
positive temperature coefficient (PTC) thermistor that experiences an increase in resistance as its temperature increases
power circuit circuit that carries power to main system components, such as compressors and fan motors
set point temperature at which a thermostat is set
subbase mounting plate for a thermostat where the electrical conections are made
temperature differential term used to describe the difference between two temperatures
primary winding winding of the transformer that generates the magnetic field that induces the voldate on the secondary side of the transformer
secondary winding winding of the transformer tha texperiences the effects of the magnetic field generated in the primary winding, producing the voltage used in the control circuit
Created by: DHeptner
 

 



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