Zone Air® Airframe 3 ZONE 33,500 BTU (12K+12K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System with 3x Pre-Charged Linesets - Up to 1,675 Sq Ft

Two 12K Cassettes Plus a 9.5K Cassette — Recessed 3 Zone Comfort for Larger Rooms

This 3 zone Airframe system recesses 12,000 BTU ceiling cassettes into two larger spaces and a 9,500 BTU cassette into a third — up to 1,675 square feet total (600 + 600 + 475) from a single outdoor condenser. Each 24" × 24" cassette mounts flush with the ceiling and distributes air 4 ways, keeping walls and sightlines clear in every zone. Every zone runs independently with its own thermostat, remote, and WiFi app control.

Three pre-charged R454B linesets ship in the box with hand-tight quick-connect fittings, so the refrigerant circuit stays sealed — no vacuum pump, no manifold gauges, no EPA Section 608 license. Rated 24 SEER2 with heating down to -13°F. The condenser is rated 27,000 BTU/h with 33,500 BTU/h of indoor capacity connected, a standard multi-zone ratio, and each cassette includes an integrated condensate pump.

Why You'll Love It

• Most Capacity in the Cassette Range — Two 600 sq ft zones plus a 475 sq ft zone — the largest indoor capacity of any Zone Air 3 zone cassette bundle.
• Nothing on the Walls — All three cassettes recess into the ceiling and blow 4 ways, so wall space, sightlines, and furniture placement stay untouched.
• Sealed Refrigerant Circuit — Three pre-charged linesets with hand-tight quick-connect fittings mean no vacuum pump, no gauges, and no EPA license for the refrigerant side of the job.
• Condensate Pumps Included — Each cassette has an integrated condensate pump, so drainage can be routed up and out rather than relying on gravity below the ceiling.
• 5-Year Warranty Protection — Zone Air backs all three cassettes and the condenser with a 5-year parts and 7-year compressor warranty, plus 30-day returns on uninstalled systems.

What Makes It Different

Ceiling cassettes are usually a contractor-only product because the refrigerant work and the ceiling work arrive together. Zone Air removes the refrigerant half.

• Three Pre-Charged Linesets — Every line run arrives factory-sealed with R454B inside. Connect each cassette by hand, torque to spec, and check the joints — the circuit never opens.
• Understood Connection Ratio — A condenser rated 27,000 BTU/h carries 33,500 BTU/h of connected indoor capacity. Three zones seldom demand full output together, so the inverter compressor shifts capacity to the zones calling for it. Both figures appear in the spec table below.
• One Circuit, Not Three — A single 230V circuit on a 30A double-pole breaker powers all three zones.

How It Works

1. Open Three Ceiling Locations — Confirm plenum depth for each cassette, then frame the 24" × 24" openings — a drop-ceiling grid or joist bay with adequate clearance.
2. Set Cassettes and Connect — Lift each cassette into its frame (plan for a helper), route the pre-charged lineset back to the condenser, hand-thread the couplings, and torque to spec.
3. Power, Drain, and Pair — Wire the outdoor unit to a dedicated 230V circuit (a licensed electrician is recommended for the disconnect), route condensate from each pump, then pair every zone to the WiFi app.

Who It's For

This 9.5K + 12K + 12K cassette system is for:

• Offices, clinics, restaurants, and retail floors with two larger rooms plus one smaller one
• Open-concept homes where wall-mounted heads would interrupt sightlines
• Rooms with drop ceilings or joist bays deep enough to recess a 24" × 24" cassette
• DIYers willing to take on ceiling work in exchange for skipping the refrigerant trade

Only one large room? The 3 zone 31K cassette system pairs one 600 sq ft zone with two 475 sq ft zones.