Why can’t screw-type chilled water chillers operate at low load for a long time
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As the title says~(￣▽￣～)~
It can also be used to explain why screw compressors are not suitable for operating at low load for extended periods of time
This one automatically adjusts the load; it stops automatically if the load is exceeded. There’s no such thing as \"not being suitable for operation at low load for long periods of time\"
It will not start if the conditions are not met.
It means that under normal operating conditions, the chiller unit operates at a reduced load due to the requirements of the operational conditions
Long-term operation at low load can result in excessively low suction pressure, which may lead to phenomena such as surge
The reason is that screw-type chilled water chillers operate in a contact mode and are protected by a medium; operating at low load levels can cause friction on the rotor, and prolonged use can damage the rotor
Long-term operation at low load levels results in reduced efficiency of the unit and affects the lifespan of the bearings, but it does not affect the lifespan of the rotor
Alas,,,, how could this happen? If you follow the instructions, why are there so many different ways to do it? ? Isn’t it just a chiller using Freon? All the settings are already set for the scene; you just need to operate it. It stops automatically when the load reaches a certain set value. That’s all there is. . . . . .
I saw in the instructions that it shouldn’t be operated at low load for long periods, as this can cause high exhaust temperatures