Unlocking HVAC Potential Optimizing High Pressure vs. Low Pressure Ports

You need to evacuate the system vacuum it and then recharge it . if the system has zero/low pressure and the can has high/higher pressure then ... The low pressure port is where you charge. The high pressure port is readily accessible, and thankfully it's made "stupid-proof" so that you ... My A/C is not cooling well so bought one of those do-it-yourself Freon kits and have it attached to the low pressure port. When the A/C is ... Start at the A/C compressor. It's attached to the front of the engine and powered by a belt and pulley. It can be at the top or down along the side of the ... Read the full gpd Tech Tip #29 in English, Spanish, or French at gpdtechtips.com In an automotive A/C system, the compressor is driven by a ... High side typically is about 200-250 PSI on a warm to hot day. Low side should be a minimum of 35-40 PSI and locked clutch on the compressor. No cycling. Both the low and high side ports are on the compressor itself rather than on the suction and pressure hoses as is more typical of modern cars. What were the pressure readings on the High and low side when you were charging the system? is your condenser clean and you can see thru it? The low side port, or the low-pressure service port, is important because it's the point where you connect to recharge the AC refrigerant. Its location varies ... The low-side service port is a quick-connect fitting that provides access to the low-pressure side of the A/C system.