• Refrigeration agent (R134a) is compressed to 15kg/cm2213psiwithin sight view.
• Compressed refrigeration agent flows into condenser under high temperature (about 80176°F).
• Refrigeration agent of condenser is cooled down by condensation fan to about 60. At the same time,
refrigeration agent is changed from gas state to liquid state, even if the temperature is reduced from
80°— 60176°— 140°Fto 2068°F.
• Refrigeration agent is sprayed ubti evaporator in gas state through expansion valve. And pressure is
reduced for 2 kg/cm228psi, and temperature is reduced, too. The result is refrigeration agent
absorbs heat from surrounding air to create refrigeration effect, refrigeration agent is changed from gas
state to liquid state.
• Refrigeration agent flows into compressor in gas state again and repeat the above process.
Refrigeration agent is compressed and sealed in AC system. Special protective measures are needed when
injecting or releasing refrigeration agent correctly. It is strictlly controlled by laws to release refrigeration
agent into air. Before maintaining or repair AC, please obey the orders of all federation, states and districts,
refrigeration agent used in the system must reach or exceed R134a specifications or environmental standards
issued later.
Air Conditioner SPC000024
Page 5
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