| 摘要 |
A refrigeration system comprises a display case having an exterior and an interior. A fan blows or draws air across an evaporator coil to cool the display case. The air is blowing over a viewing area to create an air curtain. At least one sensor obtains environmental data, which is fed to a control unit. The control unit communicates with the fan and adjusts the air curtain based on the sensed environmental data.
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