Tools of the Trade
This tool is used to measure refrigerant pressure in a system.
What are gauges (manifold set)?
he unit of electrical pressure.
What is a volt?
This component absorbs heat from inside the building.
What is the evaporator coil?
Always wear these to protect your eyes when brazing.
What are safety glasses?
Refrigerants must never be released into the atmosphere. What is this process called?
What is venting (illegal venting)?
This tool checks the amount of current flowing through a wire without disconnecting it.
What is a clamp meter?
A device that opens a circuit when current is too high.
also known as "trips"
What is a circuit breaker?
The refrigerant is a high-pressure, high-temperature gas when it leaves this component.
What is the compressor?
his gas must never be used to pressure-test refrigerant lines.
What is oxygen?
the ozone layer protects life on earth by absorbing most of this type of radiation.
What is ultraviolet (UV) radiation?
The tool used to measure airflow in ducts.
What is an anemometer?
The relationship: Voltage = Current × Resistance.
What is Ohm’s Law?
The component that rejects heat to the outdoor air.
What is the condenser coil?
This chemical hazard is released if refrigerant contacts open flame.
What is phosgene gas?
The EPA requires technicians to pass Section 608 certification to do this type of work.
What is handling refrigerants?
This tool cuts copper tubing cleanly without flattening it
What is a tubing cutter?
A capacitor stores this form of energy.
What is electrical energy?
The device that reduces refrigerant pressure before entering the evaporator.
What is a metering device (TXV/cap tube)?
The minimum evacuation level required before charging a system (per EPA).
What is 500 microns?
this scale measures a refrigerant’s potential to damage the ozone layer compared to R-11.
What is Ozone Depletion Potential (ODP)?
This tool is used to remove air and moisture from a system before charging.
What is a vacuum pump?
This electrical component switches the compressor from start winding to run winding.
What is a start relay?
Name the four major components of the refrigeration cycle.
What are the compressor, condenser, metering device, and evaporator?
The color of an oxygen cylinder compared to an acetylene cylinder.
What is green (oxygen) and red (acetylene)?
This type of certification is required to service any system, regardless of size or type.
What is Universal Certification?