Before installing the lineset insulation, what should be done to seal the ends of the lineset?

To effectively prevent moisture infiltration and ensure the integrity of the lineset insulation, sealing the ends of the lineset is essential. Taping the exposed ends is a common practice that provides a straightforward, effective barrier. This method helps to keep contaminants, dirt, and moisture out of the lineset, which is crucial for maintaining system efficiency and preventing potential damage over time.

The process of sealing with tape is advantageous because it creates a snug fit around the lineset, minimizing exposure to the elements. It also allows for easier installation and can be done using materials specifically designed for HVAC applications, ensuring durability.

Other methods, while they may offer some degree of protection, do not provide the same level of assurance or practicality. For example, painting the exposed areas may only coat the surface but will not effectively seal the ends from moisture ingress. Wrapping in duct tape, although providing some level of sealing, often does not have the same longevity or temperature resistance as proper HVAC tape. Using heat-shrink tubing can be effective in certain cases, but it may not be suitable for all environments or for ease of application during installation.