This MRCOOL DIY 5th Gen Multi-Zone Mini-Split pairs a 48,000-BTU outdoor condenser with 4 wall-mount indoor air handlers (18K + 12K + 9K + 9K BTU), giving you 4 independently controlled zones from a single DIY-installed system with pre-charged Quick Connect line sets and R-454B refrigerant.
Highlights
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4-zone DIY system — one 48,000 BTU outdoor condenser runs 4 indoor wall-mount air handlers (18K + 12K + 9K + 9K BTU), each with independent temperature control.
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No professional installation required — patented pre-charged Quick Connect line sets let you skip the evacuating/charging process an HVAC pro would normally handle.
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High-efficiency R-454B refrigerant system — rated at 21.8 SEER2 and an HSPF2-4 of 10 for efficient year-round heating and cooling.
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DIYPro cable included — future-proofs the installation by eliminating the need for electrical conduit.
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Follow Me function — the included remote tracks the temperature around you for more consistent comfort, plus Dry Mode for humidity control and a Gold Fin condenser coil for added corrosion resistance.
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Smart controls — operate via wireless remote, the SmartHVAC app (iOS/Android), or hands-free through Amazon Alexa and Google Assistant.
Specs & Features
| Spec |
Value |
| Condenser Capacity |
48,000 BTU |
| Zones |
4 (18K + 12K + 9K + 9K BTU) |
| Indoor Air Handler Type |
Wall Mount |
| Efficiency |
21.8 SEER2 / HSPF2-4 of 10 |
| Refrigerant |
R-454B (pre-charged Quick Connect line sets) |
| Combined Indoor Coverage |
Up to 2,150 sq. ft. across all zones |
| Installation |
DIY — no HVAC professional required |
| Parts Warranty |
5 years |
| Compressor Warranty |
7 years |
| Extended Warranty |
Limited Lifetime Replacement with MRCOOL Care Program subscription |
| Certification |
Intertek listed 5031495 |
Per-zone coverage: 18K BTU (up to 800 sq. ft.), 12K BTU (up to 550 sq. ft.), 9K BTU (up to 400 sq. ft.), 9K BTU (up to 400 sq. ft.).
- Smart HVAC Controller Module and app support Google Assistant and Amazon Alexa out of the box.
- Individual indoor-unit BTU ratings are sized independently of the outdoor condenser's rated capacity, which is standard for MRCOOL multi-zone system design.
Details
Avermont Direct is an authorized MRCOOL dealer, and this 4-zone DIY mini-split system is built for homeowners who want ductless heating and cooling in multiple rooms without hiring an HVAC contractor. The 48,000 BTU condenser and 4 wall-mount air handlers are backed by a 5-year parts warranty and a 7-year compressor warranty, with a Limited Lifetime Replacement warranty available through the MRCOOL Care Program. It's a practical fit for covering several rooms or an entire home from one outdoor unit.
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
