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						  VRV, MRV, MDV, VAV, VWV and KRV systems for air conditioningVRV, MRV, MDV, VAV, VWV and KRV systems for air conditioning
 KRV: Fresh air exchanger, full heat exchanger.
 VAV: Variable air volume air conditioning system, isREAD MOREdate:2024-01-19
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						  Several common air conditioning host formsSeveral common air conditioning host forms:
 Water cooling chiller:
 The water-cooled chiller belongs to the refrigeration unit part of the central air conditioniREAD MOREdate:2024-01-17
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						  heat exchanger classification1, heat exchanger classification
 By structure:
 ◆ Finned tube type (refrigerant/air, refrigerant/air)
 ◆ Shell and tube type (refrigerant/refrigerant)
 ◆ Tube tREAD MOREdate:2024-01-16
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						  Scroll compressor replacement operationScroll compressor replacement operation
 The first step: compressor electrical detection
 Voltage and current measurement: The output end of the AC contactor of tREAD MOREdate:2024-01-16
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						  Performance of insufficient refrigerant for air conditioningPerformance of insufficient refrigerant for air conditioning:
 ① The trachea valve is dry, and there is no obvious cold feeling when touched by hand
 ② Liquid pREAD MOREdate:2024-01-15
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						  Central air conditioning chiller maintenanceCentral air conditioning chiller maintenance
 1. Daily maintenance
 © Execute the startup and shutdown sequence according to the specified procedure every daREAD MOREdate:2024-01-15
