The A/C discharge hose pipe handles the highest temperatures and pressures in the system. When the compressor pumps refrigerant, it exits as a hot gas under pressures that can exceed 300 PSI on hot days. The discharge line carries this gas to the condenser. It uses heavy-duty rubber and crimped aluminum fittings.
Mechanic Glossary
A/C Discharge Hose Pipe
The high-pressure hose that carries hot, gaseous refrigerant from the compressor outlet to the condenser inlet.
Frequently Asked Questions
The smaller of the two lines connected to the compressor. It runs directly to the top of the condenser and feels hot to the touch when the A/C is running.
Extreme heat cycles and high system pressures cause the rubber to dry out and crack over time.
Yes, but the A/C won't work and you should disconnect the compressor clutch plug to prevent the dry pump from turning.