上排风机组 Upper Exhaust Fan Unit

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• 国际领先的制冷压缩技☆术。性能可靠，结构紧凑，能效比高。

• 采用高效蝶形阀片，吸排※气气流通畅，大大减少吸排气阻力。

• 油泵强【制供油及独特油压差控制装置。

• 特有的喷液冷却设计更适应低温工况下可靠运▆行。

• 独特内置ω温度保护装置，对电□　机及压缩机的过热运转提供了有效保护。

• 带有曲轴∴箱PTC加热器，确保长时间停机或环温过低时压缩机安全『启动。

• International leading refrigeration and compression technology. It has reliable performance, compact structure and high energy efficiency ratio.

• The butterfly valve with high efficiency is adopted to smooth the suction and exhaust airflow and greatly reduce the suction and exhaust resistance.

• Compulsory oil supply of oil pump and unique oil pressure difference control device.

• The unique spray cooling design is more suitable for reliable operation at low temperature.

• Unique built-in temperature protection device provides effective protection for overheating operation of motor and compressor.

• PTC heater with crankcase ensures safe start of compressor when long shutdown or ring temperature is too low.

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