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The CAMBRIDGE 223456 is a pre-insulated refrigerant lineset designed for split-system air conditioning and heat pump installations. The EZ Pull construction simplifies routing through walls, ceilings, and chases, reducing labor time on residential and light commercial jobs. The lineset ships in a 30-foot length with a 3/8-inch suction line and a 7/8-inch liquid line, both wrapped in armored insulation to protect refrigerant lines from mechanical damage and thermal gain. HVAC technicians use this style of lineset as a complete, ready-to-install solution when connecting indoor and outdoor units.
This lineset fits typical split-system installations where a pre-insulated, armored line assembly is preferred over field-fabricating individual copper lines with separate insulation. The 30-foot run accommodates standard residential installations where the condensing unit is positioned near the structure. The EZ Pull design allows a single technician to feed the assembly through confined spaces without the lines binding or kinking during installation.
Designed as an OEM-style replacement or new-installation lineset for residential and light commercial split-system air conditioners and heat pumps requiring 3/8-inch x 7/8-inch pre-insulated line assemblies.
Installation should be performed by a licensed HVAC technician familiar with refrigerant line brazing, evacuation, and system commissioning procedures. Power down and lock out the indoor and outdoor units before connecting any refrigerant lines. Avoid kinking the copper lines during routing; support the lineset at intervals consistent with local mechanical codes. Leak-test all connections before charging the system with refrigerant.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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