What are the advantages of a hermetic compressor vs. an open drive compressor?
The hermetic 19XL compressor motor is cooled by the circulating liquid refrigerant. The motor operates in a clean and cool environment as opposed to a typical open drive compressor. The hermetic design eliminates heat rejection to the plant room which is characteristic of an air cooled open drive motor. The energy consumption to cool the motor is included in the 19XL power consumption. The heat rejected by an air cooled open motor must be accounted for in the building cooling or ventilation load. The hermetic compressor also eliminates the open drive shaft seal. Shaft seals wear and leak both oil and refrigerant and have to be replaced as the chiller ages. The 19XL hermetic design eliminates this operating concern.