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Description
This MRCOOL® DIY® 5th Generation 3-Zone Ductless Mini-Split system pairs a 55,000 BTU outdoor condenser with three indoor air handlers sized 9K + 9K + 9K BTU (9K BTU Ceiling Cassette, 9K BTU Ceiling Cassette, 9K BTU Ceiling Cassette), giving each zone its own coverage of up to 400, 400, and 400 sq. ft. respectively. The condenser is rated SEER2 up to 22 and HSPF2-4 up to 10.6, and the system is designed for do-it-yourself installation with no HVAC professional required.
Highlights
- No HVAC professional required — installs with pre-charged Quick-Connect® line sets and R-454B refrigerant, eliminating on-site evacuation and vacuuming
- Three independently controlled zones sized to the space they serve: 9K BTU Ceiling Cassette (up to 400 sq. ft.), 9K BTU Ceiling Cassette (up to 400 sq. ft.), 9K BTU Ceiling Cassette (up to 400 sq. ft.)
- SEER2 up to 22 and HSPF2-4 up to 10.6 for efficient year-round heating and cooling
- Controllable via the Smart HVAC app (iOS/Android), included wireless remote, and compatible with Amazon Alexa and Google Assistant
- Ceiling Cassette air handlers install flush between 16” ceiling joists with a low-profile design, two-stage DC motor, and an Elevation function for easy filter access
- Backed by a 5-year parts warranty and 7-year compressor warranty, with a Limited Lifetime Replacement warranty available upon MRCOOL® Care Program enrollment
Details
Avermont Direct is an authorized MRCOOL dealer. This 9K + 9K + 9K BTU 3-zone system pairs one 55,000 BTU outdoor condenser with three separately controlled indoor air handlers, suited to cooling and heating up to three rooms or areas of a home from a single outdoor unit. The system is backed by a 5-year parts warranty and a 7-year compressor warranty, with a Limited Lifetime Replacement warranty available once registered through the MRCOOL® Care Program. It's designed for DIY installation, with pre-charged Quick-Connect® line sets and a low-profile Ceiling Cassette design to simplify setup without requiring a licensed HVAC technician.
Need Help?
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
| Condenser Capacity | 55,000 BTU (3-Zone) |
| Efficiency | SEER2 up to 22 / HSPF2-4 up to 10.6 |
| Zone 1 | 9K BTU Ceiling Cassette — up to 400 sq. ft. |
| Zone 2 | 9K BTU Ceiling Cassette — up to 400 sq. ft. |
| Zone 3 | 9K BTU Ceiling Cassette — up to 400 sq. ft. |
| Refrigerant | R-454B (pre-charged Quick-Connect® line set) |
| Certification | Intertek Listed 5031495 |
| Parts Warranty | 5 years |
| Compressor Warranty | 7 years |
| Limited Lifetime Replacement | With MRCOOL® Care Program enrollment |
- Ceiling Cassette zones fit between 16” ceiling joists (including pre-manufactured I-joists) for a flush, low-profile appearance
- Ceiling Cassette zones feature a two-stage DC motor, Swing Technology, and an Elevation function that lowers the filter panel for easy cleaning
- Remote control included with each of the three indoor air handlers
Shipping
- Orders of $200 or more ship free within the contiguous United States. Orders under $200 ship for a flat $9.99.
- In-stock items (shown as “In Stock” on the product page) ordered before 1:00 PM Pacific Time on a business day typically ship within 1–3 business days. Delivery usually takes 3–7 business days after shipping.
- Backorder, Partial Backorder and Custom Order items are not covered by the 1–3 business day processing time. Their estimated restock or ship time is shown in the stock status on the product page before you order.
- Large items ship by freight and are typically delivered curbside. Smaller items ship by ground carrier such as FedEx or UPS.
- We ship to the 48 contiguous states. We do not ship to Alaska, Hawaii or P.O. boxes.
- Please inspect your delivery on arrival and report any concealed damage or missing parts within 24 hours.
Returns
- Returns can be requested within 30 days of delivery. Items must be unused, uninstalled, in new resalable condition and in their original packaging, including the pallet if delivered on one.
- Approved returns are subject to a 15% restocking fee, and return shipping costs are the customer’s responsibility unless the return is the result of our error.
- Installed or used products, custom and made-to-order items, clearance or final-sale items, and replacement parts and accessories are not eligible for return.
Full Shipping Policy Full Return Policy Questions? +1 (844) 455-3695







