CriticalRefrigeration
CO2 High Gas Cooler / Discharge Pressure
On a transcritical CO2 rack the high side runs above the optimum gas-cooler pressure target, hurting efficiency and risking high-pressure trips (relief ~1740 psi).
Symptoms
- High-side pressure above the calculated optimum for the gas-cooler outlet temp
- MT compressors loaded/overamping, poor COP
- High-pressure alarm or relief approaching (~1740 psi)
- Gas-cooler outlet (approach) temperature high
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