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The DIRECTEDAIR da03r-08x06 is a copper reducing coupling fitting designed to connect two copper refrigerant or HVAC lines of different diameters. It transitions a 7/8-inch connection to a 5/8-inch connection, both in copper, making it a standard field fitting for refrigerant piping work. HVAC technicians and plumbers use this type of fitting when upsizing or downsizing line sets during installation, repair, or system modification. The all-copper construction ensures compatibility with refrigerant service and meets industry dimensional standards for reliable, leak-free joints.
This reducing coupling is suited for residential and light commercial HVAC refrigerant line applications where a diameter change is required between copper tubing runs. It is appropriate for use in split system installations, line set modifications, and service calls that require splicing or reconfiguring copper refrigerant piping. Licensed HVAC technicians performing brazing work on sealed refrigerant systems are the primary installers of this fitting.
Designed as an OEM-style replacement and field fitting for copper refrigerant line applications requiring a 7/8-inch to 5/8-inch diameter reduction in residential and light commercial HVAC systems.
Installation should be performed by a licensed HVAC technician. Recover all refrigerant from the system before cutting or opening any refrigerant lines, in compliance with EPA Section 608 regulations. This fitting is intended for brazing; use appropriate flux and alloy for copper-to-copper joints and follow local mechanical code requirements. Allow the joint to cool fully before pressurizing and leak-checking the system.
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