AT
AT
AT
AT Air
Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
- 165 -
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Testing
Testing
Testing
Testing
Operating
Operating
Operating
Operating principle
principle
principle
principle
1. During operation, low pressure gaseous refrigerant
from evaporator transforms into high pressure and
high temperature gas after passing through
compressor, which transforms into high pressure
and low temperature liquid after being cooled by
condenser radiating pipe; the liquid, after being
dehumidified and buffered by receiver drier, flows
into expansion valve at stable pressure and flow
rate, and finally flows into evaporator through
throttling and depressurization ; the refrigerant
evaporates and absorbs abundant heat once
encountering low pressure condition.
2. High-pressure side of refrigerating system .
3. Low-pressure side of refrigerating system .
4. Compression process.
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