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Heating and Cooling System Refrigerant Line Set

You might be replacing the refrigerant line set on your heating or cooling system for a couple of reasons, including damaged lines, compressor burnout failure where acid is created, and leaking lines. It’s also a good idea to replace your refrigerant lineset when upgrading or installing a new hvac system.

Time to Replace Your HVAC Line Set

Your HVAC system works hard to keep your home comfortable, and your HVAC line set has a big part to play there. Also known as the refrigerant line set, this is a set of copper tubes that carries refrigerant from your system’s condenser to its evaporator, which is what transfers heat into and out of your home. When your system’s lines are damaged, that heating function will suffer.

Signs It’s Time for a New HVAC Refrigerant Line Set

If your HVAC refrigerant line set is damaged, you’ll need to have it replaced. Look out for the following signs of damage:

  • Dents in the copper tubing

  • Tiny pinholes in the copper (there will be evidence of oil at the leak location)

How Does an HVAC Line Set Replacement or Installation Work?

Get an assessment of your HVAC system

An HVAC specialist will take a close look at your heating or cooling system and find the source of your issue. If they locate damaged lines, they’ll let you know it’s time to replace them. If you’re having a new HVAC system installed, you'll need to also install new lines.

Review the estimate with the specialist

You’ll be quoted based on the type of HVAC system you have, and the type of refrigerant line set it requires. Line sets come with two lines: liquid lines and suction lines, each which come in various diameters and lengths. Every system is different, so your technician will assess what your system needs to perform at its best. You have options, so don’t be afraid to ask questions!

Change your HVAC line set

An HVAC technician will come to your house to replace your system’s line set with a new one. This typically takes somewhere between 5-7 hours, depending on the service provider.

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