Electricity
The opposition of current flow.
What is resistance?
After leaving the evaporator, the refrigerant is in this state.
What is low-pressure, low-temperature vapor?
I take high voltage and lower it to the voltage needed for the control circuit.
What is a transformer?
I am attached to both the supply and return sides of the air handler.
What are plenums?
I am used to measure the pressure in a system.
What is a manifold gauge set?
For electric motors, 1 hp is equal to _______ watts.
What is 746?
The refrigerant leaves the compressor in this state.
I am responsible for pulling the air over the evaporator and returning it the home.
What is the blower assembly?
The supply register is attached to me.
What is a boot?
I am used to measure voltage, amperage, resistance, microfarads and temperature.
What is a multimeter?
These are measured in Microfarads and Volts.
What is a capacitor?
In the condenser, refrigerant changes state into this.
What is high pressure, high temperature liquid?
It is my job to reject the heat that was absorbed by the evaporator.
What is the condenser?
Many ducts can be attached to me.
What s a distribution box?
I am used to remove refrigerant from a system.
What is a recovery machine?
This is generally accepted as within allowable supply line voltage.
What is 5% ?
I create the pressure drop needed for refrigerant to flash off before entering the evaporator.
What is the metering device?
It is my job to reverse the flow of refrigerant in a heat pump.
What is the reversing valve?
The resistance to airflow in the ducts.
What is static pressure?
I am used to evacuate a system.
What is a vacuum pump?
This can create a signal based on pressure.
What is a transducer?
When there is both liquid and vapor refrigerant present.
What is a saturated state?
I receive the signal and tell the reversing valve when to switch positions.
What is the solenoid coil?
Required CFM's per ton (in FL) is ______.
I am used to measure very high resistance values.