MRCOOL MC16-3858 - Installation Kit - 16 Feet (3/8 X 5/8) Line Set For 24k & 36k Indoor (16Ft Kit 03)

Complete Mini-Split Installation Kit — 16-Foot Line Set Included

Everything you need for a professional mini-split installation in one kit. The MRCOOL MC16-3858 includes a 16-foot pre-insulated 3/8×5/8 inch copper line set, communication wire, and drain hose — the three components needed to connect your indoor air handler to the outdoor condenser. Sized for 9K–18K BTU systems.

Technical Specifications

Installation & Product Tips

• The 3/8×5/8 diameter is for 9K–18K BTU systems — verify with your system's installation manual
• Measure the actual routing distance before ordering — 16 feet covers most through-wall installations
• The included communication wire connects the indoor and outdoor units for control signals
• Route the drain hose downward with a minimum 1/4-inch per foot slope for proper drainage
• A licensed HVAC technician must braze connections and evacuate the system before charging

Frequently Asked Questions

Warranty Information

All MRCOOL products sold by HVACProSales come with the full MRCOOL manufacturer warranty. Register your product at the MRCOOL registration portal within 30 days of installation to activate full warranty coverage. Residential products typically include a 7-year parts warranty and 5-year compressor warranty when registered. Commercial products carry a 5-year parts warranty.