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Zone Air HVAC Mini Split - Professional HVAC, DIY Prices
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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

$5,599.99$7,299.99
Save $1700 (23% OFF)
Or as low as $467/mo with Affirm
Zone Air customers saved over $3,000 on average with our DIY units in 2025, compared to contractor installation.
USA based testing, inspection, and final assembly

At a Glance

Power: 208-230V / 30A, dedicated circuit, electrician recommended
Room size: Up to 1,425 sq ft in mild climates
Install: DIY install, pre-charged quick connect systems mean no vacuum pump or contractor needed
Lineset: 3x 16 ft pre-charged included, each can be extended up to 50 ft (custom lengths available)
Room size varies by climate, insulation, and window exposure. Use our calculator for an exact recommendation. Do not use an extension cord.
Free shipping · Estimated delivery: Thursday, Aug 6

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

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Lineset Cover Kit
16 ft. Decorative Lineset Cover
Hide exposed lines — paintable PVC · up to 3
$99.99
Mounting Bracket
Wall Mount Bracket
Heavy-duty, holds up to 550 lbs
+$109.99
1
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Zone Air Guarantee

5 year parts, 7 year compressor warranty — 30 day returns — Live US support 9–5 MST

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System Overview

28,500 BTU
Capacity
208-230V / 30A
Power
24 SEER2
Efficiency
Independent zone control
Cold climate performance
30 dB per unit
Sound
Up to 1,425 sq ft
Max room size

Your Purchase Includes

Everything you need for a complete DIY installation

Indoor Unit
3x Indoor Air Handlers
Outdoor Condenser
Outdoor Condenser
Pre-Charged Lineset
Pre-Charged Linesets
Installation Kit
Installation Kit
Remote Control
3x Remote Controls

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 Capacity28,500 BTU/h (3× 9,500)
Per Zone Capacity9,500 BTU/h each
Outdoor Unit Rated Cooling Capacity27,000 BTU/h (4,500-31,000 range)
Outdoor Unit Rated Heating Capacity28,000 BTU/h (4,500-33,000 range)
SEER2 Rating24
EER2 Rating12.0
HSPF2 (Region IV/V)10.5 / 8.8
Voltage208-230V / 60Hz
Breaker Needed30A (double-pole)
Number of Zones3
Refrigerant TypeR454B (pre-charged)
Indoor Units3× ceiling cassette units (24" × 24")
Air Distribution4-way (360°) per unit
Linesets Included3× 16 ft pre-charged
Operating Temperature-13°F to 131°F
Sound Level (per unit)28–42 dB
Outdoor Sound Level62 dB(A)
Outdoor Unit Dimensions (WxDxH)38-1/2" x 16-1/2" x 31-5/8"
Outdoor Unit Weight119 lbs
Condensate PumpsIntegrated in each unit

INDOOR UNIT

Part Numberzdiy-cc-9I
Net Dimensions (WxDxH)25-5/8" x 25-5/8" x 22-1/2"
Carton Dimensions (WxDxH)Coming soon
Net / Gross WeightComing soon

OUTDOOR UNIT

Part Numberzdiy-cc-27O
Breaker Needed30A (double-pole)
Net Dimensions (WxDxH)38-1/2" x 16-1/2" x 31-5/8"
Sound Level62 dB(A)
Carton Dimensions (WxDxH)Coming soon
Net / Gross Weight119 lbs
Zone Air® Product Series

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

0:00 / 0:00

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

360° Air Distribution

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.

Smart Louver Control
Wi-Fi Smart Control

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.

Easy Filter Access

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

Indoor Temperature (Cooling)
62-89°F (17-31°C)
Indoor Temperature (Heating)
32-86°F
Outdoor Temperature (Cooling)
5-131°F (-15 to 55°C)
Outdoor Temperature (Heating)
-13 to 86°F (-25 to 30°C)

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 BoxesThree 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 AirflowCentered in each ceiling, every cassette distributes air in all four directions for balanced temperatures with no hot or cold corners.
  • Right-Sized 9.5K ZonesEach 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 CassettesThree 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 ProtectionZone 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 LinesetsEvery 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 CapacityThree 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 ThreeA 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

  1. Frame and MountOpen 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.
  2. Power and ConfigureWire 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.
  3. Even, Hidden ComfortEach 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?

Each Airframe cassette heats and cools up to 475 sq ft with even 4-way airflow, so three zones cover up to 1,425 sq ft total — ideal for three bedrooms, offices, or finished rooms.

How much ceiling depth do the cassettes need?

Each Airframe cassette is a 24" × 24" unit designed to recess into a drop-ceiling grid or between joists with adequate plenum depth. Confirm your ceiling cavity against the spec sheet before ordering.

How can a 27,000 BTU condenser support three 9,500 BTU cassettes?

Multi-zone systems use a connection ratio: the outdoor unit is rated 27,000 BTU/h while 28,500 BTU/h of indoor capacity is connected. Three zones rarely demand full output at once, so the inverter compressor shifts capacity to the zones calling for it.

Is this really a DIY install?

The refrigerant side is — all three linesets are pre-charged R454B with hand-tight quick-connect fittings, so no vacuum pump or EPA license is needed. Each cassette recesses into the ceiling with the included frame; plan for ceiling access, a helper for lifting, and a licensed electrician for the 230V disconnect.
View all FAQs

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.