















Zone Air® Airframe 3 ZONE 28,500 BTU (9.5K+9.5K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System with 3x Pre-Charged Linesets - Up to 1,425 Sq Ft
At a Glance
Choose your lineset lengths
One pre-charged lineset per zone — 3 included at 16 ft. Pick a longer run for any zone that needs it.
Zone 1
Zone 2
Zone 3
Frequently Purchased Together
5 year parts, 7 year compressor warranty — 30 day returns — Live US support 9–5 MST
Payment & Security
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System Overview
Your Purchase Includes
Everything you need for a complete DIY installation





Summary
- Voltage: 208-230V
- Environmentally friendly R454B (pre-charged)
- Low ambient range operation: heating down to Independent zone control
- Variable-speed DC inverter driven performance
- Pre-charged lineset included for DIY installation
- Energy Star certified
Technical Information & Performance
SYSTEM KIT
| Connected Indoor Capacity | 28,500 BTU/h (3× 9,500) |
| Per Zone Capacity | 9,500 BTU/h each |
| Outdoor Unit Rated Cooling Capacity | 27,000 BTU/h (4,500-31,000 range) |
| Outdoor Unit Rated Heating Capacity | 28,000 BTU/h (4,500-33,000 range) |
| SEER2 Rating | 24 |
| EER2 Rating | 12.0 |
| HSPF2 (Region IV/V) | 10.5 / 8.8 |
| Voltage | 208-230V / 60Hz |
| Breaker Needed | 30A (double-pole) |
| Number of Zones | 3 |
| Refrigerant Type | R454B (pre-charged) |
| Indoor Units | 3× ceiling cassette units (24" × 24") |
| Air Distribution | 4-way (360°) per unit |
| Linesets Included | 3× 16 ft pre-charged |
| Operating Temperature | -13°F to 131°F |
| Sound Level (per unit) | 28–42 dB |
| Outdoor Sound Level | 62 dB(A) |
| Outdoor Unit Dimensions (WxDxH) | 38-1/2" x 16-1/2" x 31-5/8" |
| Outdoor Unit Weight | 119 lbs |
| Condensate Pumps | Integrated in each unit |
INDOOR UNIT
| Part Number | zdiy-cc-9I |
| Net Dimensions (WxDxH) | 25-5/8" x 25-5/8" x 22-1/2" |
| Carton Dimensions (WxDxH) | Coming soon |
| Net / Gross Weight | Coming soon |
OUTDOOR UNIT
| Part Number | zdiy-cc-27O |
| Breaker Needed | 30A (double-pole) |
| Net Dimensions (WxDxH) | 38-1/2" x 16-1/2" x 31-5/8" |
| Sound Level | 62 dB(A) |
| Carton Dimensions (WxDxH) | Coming soon |
| Net / Gross Weight | 119 lbs |
Airframe Ceiling Cassette Series
Zone Air® ceiling cassette systems provide 360-degree airflow from a flush-mounted ceiling unit. Ideal for offices, commercial spaces, and modern homes where wall space is limited. Each system includes a decorative panel, pre-charged lineset, and full installation hardware.
Quick-connect lineset installation
Product Warranty
Coverage applies to the original purchaser with proof of purchase. See our Warranty Policy.
- 5 years warranty on parts
- 7 years warranty on compressor
Manuals & Documents

Even Temperature Throughout
360° Air Distribution
Four-way distribution eliminates hot and cold spots, spreading conditioned air evenly throughout the entire space.
Year-Round Comfort
Smart Louver Control
Intelligent louvers auto-adjust: 10° angle for gentle cooling, 85° angle to push warm air downward in heating mode.


Control From Anywhere
Wi-Fi Smart Control
Control from anywhere with the Zone Air app. Adjust temperature, set schedules, and monitor energy usage from your phone.
Simple Upkeep
Easy Filter Access
Panel drops down for quick access to washable, reusable filters. No tools required.

Advanced Features
Smart Climate Control
- ✓Independent zone control
- ✓360° air distribution per zone
- ✓24-hour programmable timer
- ✓Turbo mode for rapid cooling/heating
- ✓Auto mode with intelligent temperature control
- ✓ECO mode for energy savings
Premium Components
- ✓High-efficiency rotary compressor
- ✓Premium indoor motors
- ✓4-speed variable fan control
- ✓R454B eco-friendly refrigerant
- ✓Fire-proof electrical enclosure
- ✓High-efficiency heat exchanger
Convenience & Safety
- ✓Auto-restart after power loss
- ✓Self-diagnostic system
- ✓Refrigerant leakage detection
- ✓Emergency manual operation
- ✓Ceiling panel indicator lights
- ✓Temperature display toggle (°C/°F)
Easy Maintenance
- ✓Drop-down panel for filter access
- ✓Washable air filters
- ✓Condensate pumps included
- ✓Self-cleaning function
- ✓Quick service access
- ✓Anti-cold wind protection
Operating Temperature Range
Three Recessed 9.5K Cassettes, One Outdoor Unit — Hidden 3 Zone Comfort You Install Yourself
This 3 zone ceiling cassette mini split conditions three separate rooms — up to 1,425 square feet total, about 475 sq ft per zone — with nothing on the walls. Each 9,500 BTU Airframe cassette recesses flush into the ceiling and washes air in four directions at once, covering each room evenly from the center instead of blowing from one wall. Every zone has its own thermostat, remote, and WiFi control.
Three pre-charged R454B linesets ship in the box, so the refrigerant circuit never opens — no vacuum pump, no gauges, and no EPA Section 608 license. The 27,000 BTU multi-zone condenser is rated 24 SEER2 with heating down to -13°F, and one outdoor unit means one set of penetrations, one circuit, and one condenser on the pad for all three recessed cassettes.
Why You'll Love It
- Three Rooms, Zero Wall Boxes — Three flush ceiling cassettes disappear into the architecture — only a slim grille shows in each room, leaving every wall free for art, shelving, and furniture.
- Even 4-Way Airflow — Centered in each ceiling, every cassette distributes air in all four directions for balanced temperatures with no hot or cold corners.
- Right-Sized 9.5K Zones — Each 9,500 BTU cassette covers up to 475 sq ft — ideal for bedrooms, offices, and finished rooms where a 12K head would be oversized.
- True DIY, Even for Cassettes — Three pre-charged, quick-connect linesets take the refrigerant work off your plate. With the included mounting frames and basic tools, the recessed install is a homeowner job.
- 5-Year Warranty Protection — Zone Air backs all three cassettes and the condenser with 5-year parts and 7-year compressor coverage, plus 30-day returns on uninstalled systems.
What Makes It Different
Most ceiling cassettes are sold strictly as pro-install equipment because they assume you will hire an HVAC tech to vacuum and charge three line runs. The Airframe pairs genuine recessed cassettes with pre-charged, quick-connect linesets so the hidden ceiling look no longer requires a contractor.
- Three Pre-Charged Linesets — Every line run arrives factory-sealed with R454B inside. Hand-connect the quick-connect fittings on each cassette, torque to spec, and the circuit is ready — no vacuum pump, no gauges, no HVAC license.
- Closely Matched Capacity — Three 9,500 BTU cassettes connect 28,500 BTU/h of indoor capacity to a 27,000 BTU/h rated condenser — a standard multi-zone ratio that works because three rooms rarely peak at once. Both numbers are in the spec table below.
- One Circuit, Not Three — A single 230V circuit on a 30A double-pole breaker powers all three cassettes, instead of three separate circuits for three single-zone units.
How It Works
- Frame and Mount — Open access above each room through a drop-ceiling tile or joist bay, secure each cassette into the ceiling opening with the included frame, and set the outdoor unit on a pad or bracket. Route the three pre-charged linesets and connect the quick-connect fittings, testing every joint with soapy water before startup.
- Power and Configure — Wire the condenser to a dedicated 208–230V circuit (a licensed electrician is recommended for the disconnect box), then configure each cassette in the WiFi app for room-by-room control.
- Even, Hidden Comfort — Each cassette heats or cools its room with balanced 4-way airflow — zoned, ductless comfort with the equipment tucked into the ceiling and no wasted energy on ductwork.
Who It's For
This 3 zone cassette system is for:
- Finished homes and offices where three rooms should stay wall-box-free with a clean, architectural look
- DIYers who want hidden ceiling cassettes without a $4,000-plus multi-zone install bill
- Bedrooms, offices, and living spaces around 350–475 sq ft each
- Cold climate homeowners who need dependable heat in every zone down to -13°F
Have larger rooms? The 3 zone 36K (12K×3) cassette system steps each zone up to 600 sq ft.
Frequently Asked Questions
How much space does each 9,500 BTU cassette cover?
How much ceiling depth do the cassettes need?
How can a 27,000 BTU condenser support three 9,500 BTU cassettes?
Is this really a DIY install?
Three Hidden Zones. One Weekend. Zero Contractors.
Recessed 4-way comfort in three rooms with one condenser, three pre-charged linesets, and an install you can do yourself.
Free shipping. 30-day returns on uninstalled systems.
