What is the purpose of service ports on refrigerant lines?

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Multiple Choice

What is the purpose of service ports on refrigerant lines?

Service ports provide access to the refrigerant circuit so you can connect measurement and service tools. They let you attach a manifold gauge set and charging or recovery equipment, which is how you read system pressures and add or remove refrigerant as needed. The ports are on both the high and low sides, giving access to the two parts of the cycle for accurate diagnosis and charging. Inside, a valve (often Schrader-type) seals the port when nothing is connected, and caps help keep dirt out. This setup keeps refrigerant contained while you measure pressures or perform charging or recovery, rather than venting or sealing the system during transport.

Service ports provide access to the refrigerant circuit so you can connect measurement and service tools. They let you attach a manifold gauge set and charging or recovery equipment, which is how you read system pressures and add or remove refrigerant as needed. The ports are on both the high and low sides, giving access to the two parts of the cycle for accurate diagnosis and charging. Inside, a valve (often Schrader-type) seals the port when nothing is connected, and caps help keep dirt out. This setup keeps refrigerant contained while you measure pressures or perform charging or recovery, rather than venting or sealing the system during transport.

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