Key Performance Features

• Seamless Deoxidized Copper – Manufactured from premium-grade copper tubing that is highly ductile, bendable, and resistant to oxidation or corrosion.
• Pre-Flared with Brass Nuts – Features accurately machined factory flares with heavy-duty hex nuts, eliminating the need for complex on-site flaring tools.
• 3/8" Thickened PE Insulation – Embossed polyethylene foam insulation provides excellent heat preservation and prevents pipe sweating, reducing energy loss.
• All-Weather Protection – The white UV-resistant outer sleeve protects the core lines from direct sunlight, harsh wind, and freezing cold temperatures.
• 25-Foot Universal Length – Provides ample distance for versatile indoor and outdoor unit placement during residential or commercial setups.

Technical Specifications

Installation Guidelines

For a flawless, leak-proof setup, follow these key steps:

1. Unrolling: Unroll the twin line set slowly and carefully in a straight path to avoid kinking the inner copper tubes.
2. Bending: Use a proper spring bender or tube bending tool if tight angles are required near walls or line covers.
3. Threading: Align the flared ends squarely with the mini-split service valves and hand-tighten the nuts first to prevent cross-threading.
4. Torque Spec: Use a torque wrench to tighten the nuts to manufacturer specifications. Over-tightening can crack the copper flare.
5. Leak Testing: Always pressure test with nitrogen or perform a vacuum evacuation before releasing the system's refrigerant.

Why Choose ZBIAOJNU Line Sets?

When it comes to HVAC systems, reliable piping is non-negotiable. Poor quality tubing can crack, leading to costly refrigerant leaks and compressor damage. ZBIAOJNU line sets offer a reliable, professional alternative with high-strength walls and superior insulation. Save time on installation and protect your climate control investment with an industry-standard fit.