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Quiz 76 Heating and Air Conditioning Service

Engineering10 CardsCreated 4 months ago

This deck covers key concepts related to heating and air conditioning service, including tools, indicators, and system components.

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Electronic leak detector

Detects leaks by producing a sound or light signal.
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Key Terms

Term
Definition
Electronic leak detector
Detects leaks by producing a sound or light signal.
A/C system evacuation
Uses a vacuum pump to remove air and moisture from inside of the system.
Bubbling sight glass
Indicates the A/C system is low on refrigerant and that air is in the system.
Cloudy sight glass
May indicate the drying agent in the receiver-drier or accumulator has broken down and is circulating through the system.
Schrader service valve
Is a spring-loaded valve, similar to the air valve in a tire.
Pressure gauge assembly
Typically consists of two pressure gauges, a manifold, two on-off valves, and three service hoses.
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Quiz 76 Heating and Air Conditioning Service
TermDefinition
Electronic leak detector
Detects leaks by producing a sound or light signal.
A/C system evacuation
Uses a vacuum pump to remove air and moisture from inside of the system.
Bubbling sight glass
Indicates the A/C system is low on refrigerant and that air is in the system.
Cloudy sight glass
May indicate the drying agent in the receiver-drier or accumulator has broken down and is circulating through the system.
Schrader service valve
Is a spring-loaded valve, similar to the air valve in a tire.
Pressure gauge assembly
Typically consists of two pressure gauges, a manifold, two on-off valves, and three service hoses.
Performance test
Indicates A?C system condition by measuring system pressures with the engine running.
Charging System
Usually contains a vacuum pump, pressure gauge set, oil injection cylinder, and a charging tank of refrigerant.
Stem-type service valve
Manual valve that is opened and closed by screwing the valve stem in or out.
Oil -streaked sight glass
Denotes a low refrigerant level, which is allowing excessive compressor oil to circulate through the system.