4–8 Zone Systems

Whole-Building Zoning from a Single Platform - 4–8 Zone Multi-Zone Mini Split Systems

The 4–8 Zone Multi-Zone Systems category is where full-building ductless design comes together. These high-capacity multi-split systems allow you to connect four, five, six, seven, or eight indoor units to a single outdoor condenser, creating room-by-room temperature control across entire homes, condos, small offices, retail spaces, and light-commercial buildings while minimizing outdoor equipment footprint.

With inverter-driven compressors and advanced refrigerant distribution, 4–8 zone systems are designed to handle diverse loads: corner bedrooms, glass-heavy living rooms, conference rooms, server zones, and common areas that all see different usage and sun exposure. You can mix wall-mounted heads, ceiling cassettes, floor consoles, and slim-duct units within the same system (when OEM-approved), giving you flexibility to match aesthetics and airflow patterns in each space while the outdoor unit modulates capacity in the background for high efficiency and quiet operation.

• 4–8 zone outdoor condensers with inverter technology, optimized for multi-space residential and light-commercial projects.
• Compatible indoor units across multiple styles and capacities to match room size, layout, and design preferences.
• OEM branch boxes, distribution headers & communication components for complex piping trees and vertical stacking.
• High SEER2 / HSPF2 ratings and advanced controls that can integrate with apps, Wi-Fi, and building schedules.
• Accessory support for line sets, line hide, condensate management, surge protection, and snow / wind protection.

Designing a 4–8 zone multi-split system requires careful attention to capacity ratios, diversity, piping lengths, and elevation changes. Each manufacturer specifies limits for total connected indoor capacity versus outdoor capacity, maximum branch lengths, and allowable height differences. Use the Compare filters on this page to review zone count, BTU ranges per zone, combined capacity ratio, sound data, refrigerant type, and required branch-box configurations before finalizing a design.

Pro tip: Start with a zone schedule that lists every room, load estimate, desired setpoint, and hours of use. Sketch outdoor location, branch box placement, and line-set routes for each indoor unit, including vertical rises and overall piping length. Share your layout and target equipment family so we can help verify 4–8 zone condenser selection, indoor head mix, branch box model, and OEM accessories to keep the system within published limits and service-friendly for future maintenance.