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Electric Heat
Theory
Random
Gas
Troubleshooting
100
heat
What is force that activates a sequencer after 24 volts has applied to it?
100
absorbing or expelling heat
What is heat transfer?
100
Heating Ventilation Air Conditioning
What is HVAC stand for?
100
senses an improper flame flow(safety)
What is a roll-out switch?
100
Repertoire
What is the first thing that you as technician need to establish with the customer?
200
only one leg is broken through the contactor
What is a pole and a half contactor?
200
O volts
What is the voltage across a contactor that is "made"?
200
the state of refrigerant after it passes through metering device.
What is flash gas?
200
The temperature sensor on the heat exchanger
What is the on off controller for the ID fan?
200
thermostat
What is first location that you start your troubleshooting from?
300
change the cool to heat with refrigeration
What is the reversing valves purpose?
300
heat rises naturally
What is natural convection?
300
Harley Davidson Ultra Classic
What is the make and model of the motorcycle Mr.Turnbow rides?
300
recognizes the presence of flame and sends signal to electronic board to leave the gas valve on.
What is the purpose of the flame sensor?
300
Difference of temperature from the supply and return..DT
What is DT?
400
120 Volts
What is the voltage on a set of heat banks without the sequencer activated?
400
removing heat where it is unwanted and expelling it where it doesn't matter.
What is the definition of refrigeration?
400
intermittent flame on and then lock out.
What is an example of a bad flame sensor?
400
flue to exhaust to the outside
What is the purpose of the inducer motor?
400
lack of airflow or lack of refrigerant.
What is the issue with a frozen evaporator coil?
500
30/45/90 you set it.
What is time between defrost cycles on a heat pump?
500
Low pressure vapor
What is the state of refrigerant as it leaves the evaporator coil?
500
cracked heat exchanger/blocked exhaust flue.
What is the causes of a roll-out switch to activate?
500
Pressure of natural gas coming from the gas valve to the spuds.
What is 4.5 in.wc?
500
the voltage difference between two conductors.(different legs)
What is difference of potential?