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The influence of commercial refrigeration refrigeration compressor (5)
The influence of commercial refrigeration refrigeration compressor (5)
(4) When the high-pressure cylinder discharge temperature reaches 60 ℃, the intercooler should be supplied with liquid.
(5) According to the warehouse load, appropriately open the relevant liquid supply valve. If the ammonia pump is used for liquid supply, the ammonia pump should be started in accordance with the commercial refrigeration ammonia pump operation steps.
Freon compressor operation The operation of Freon compressor is basically the same as that of ammonia compressor. Because R12 can dissolve with lubricating oil, you should always check the oil return to ensure that the crankcase has enough lubricating oil.
1. The preparation for starting the Freon compressor is the same as the preparation before starting the ammonia compressor, the Freon compressor should also check the following aspects.
(1) If the condenser is water-cooled, the water valve should be opened for water supply, and the air-cooled condenser should be turned on.
(2) Check the temperature relay, low voltage relay, high voltage relay, oil pressure relay, and the system with solenoid valve should also pay attention to check whether the solenoid valve and other parts are normal.
2. Start-up operation of Freon compressor
(1) Open the exhaust valve, suction valve and other related valves of commercial refrigeration Freon compressor.
(2) Turn the coupling of the compressor to check if it is too heavy.
(3) Start the compressor and monitor whether the compressor's running sound is normal. If there is no noise, it can run normally.
(4) Open the expansion valve and determine the opening size according to your needs (if the system uses a thermal expansion valve, it can be automatically opened after startup).
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