Objectives

• After studying this unit, you should be able to
• describe a standing pressure test.
• describe the six classes of leaks.
• explain the test procedures for evaporator and condenser section leaks.
• explain the test procedures for suction and liquid-line leaks.
• explain the test procedures for temperature-, pressure-, and vibration-dependent leaks.
• choose a leak detector for a particular type of leak.
• describe a deep vacuum.
• describe two different types of evacuation.
• describe a wireless, digital, micron vacuum gauge.
• describe two different types of vacuum measuring instruments.
• describe how wireless, Bluetooth technology can be used in an evacuation process.
• choose the correct high-vacuum pump.
• list some of the proper evacuation practices and techniques.
• describe a deep-vacuum single evacuation.
• describe a triple evacuation.
• explain the process involved in cleaning a system after a hermetic motor burnout.

Advance to the Learning Center dashboard and complete the lessons.