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The Copper Tees & Wyes category includes the essential branch fittings used to split, join or redistribute refrigerant flow in HVAC line sets. These fittings are critical when routing refrigeration piping around structural elements, connecting branch circuits on multi-head mini-split systems, or merging multiple drain or suction lines into a common route. Proper tee and wye selection ensures smooth flow, consistent oil return and system reliability—especially on inverter-driven and high-efficiency heat pump systems.
This section includes standard copper tees, reducing tees, side-outlet tees, wye fittings, branch split fittings and specialized tees for mini-split refrigerant distribution. Options are offered in common HVAC sizes, including 1/4", 3/8", 1/2", 5/8", 3/4" and 7/8", allowing contractors to build branch circuits that meet manufacturer specifications and maintain refrigerant balance across multi-zone systems.
When choosing tees and wyes, evaluate system type, refrigerant pressure, line diameter, installation layout and manufacturer-approved routing requirements. For multi-zone mini-splits and heat pumps, using wyes instead of tees may reduce turbulence and maintain better refrigerant distribution across heads. Always maintain proper slope for suction and liquid lines and avoid unnecessary directional changes that may trap oil or restrict refrigerant flow.
Pro tip: Whenever possible, position tees and wyes where they are accessible for brazing and future service. Use long-radius fittings before or after branch fittings to maintain stable refrigerant velocity and ensure proper oil migration.
Copper HVAC tees and wyes are used for splitting, joining and branching refrigerant lines. Options include standard tees, reducing tees, wye fittings and specialty branch fittings for mini-splits in sizes from 1/4 to 7/8 inch.
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