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  1. nightmareyan

    compressor low suction pressure

    In my opinion, if both suction and discharge pressure is low, it would be refrigerant charging low.But, if suction side is low and discharge is very high, it may block something in condenser tube and exp valve.
  2. nightmareyan

    positive and negative pressure percent

    hi everyone, I would like to know the max tolerate percent of different between positive and negative pressure in building.Sometime we need to extract some air flow if there are too much positive. Sometime negative.But i don't know exactly when we need to add and extract air flow by...
  3. nightmareyan

    Pressure Relief valve on a chiller

    In my opinion,I don't think the PRV(Pressure relief valve) is only for fire protection. HSP/LSP is for refrigerant circuit and pressure relief valve is for water circuit. The purpose of the PRV is to discharge the pressure(by discharge water) if some instrument in chiller system system is false...
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