Discharge pressure

Discharge pressure(also calledhigh side pressureorhead pressure) is thepressuregenerated on the output side of agas compressorin arefrigerationorair conditioningsystem. The discharge pressure is affected by several factors: size and speed of the condenser fan, condition and cleanliness of the condenser coil, and the size of the discharge line. An extremely high discharge pressure coupled with an extremely low suction pressure is an indicator of a refrigerant restriction.