This MRCOOL Olympus 4th Gen 2-zone system pairs a 27,000 BTU multi-zone heat pump condenser with an 18,000 BTU and a 9,000 BTU wall-mount ESTAR air handler, giving two separate rooms independent heating and cooling from one outdoor unit.
Highlights
- Inverter-driven condenser rated up to SEER2 25 and HSPF2-4 9.5 for efficient year-round performance
- Rated to operate in outdoor temperatures as low as 5°F for dependable cold-weather heating
- 18K wall-mount air handler rated SEER2 23.5 / EER2 12.7 / HSPF2-4 10.8; 9K wall-mount air handler rated SEER2 25.8 / EER2 14.9 / HSPF2-4 12.5
- Both indoor units run quiet — 49 dB (18K) and 47 dB (9K)
- Wi-Fi connectivity through the MRCOOL SmartHVAC app plus an included remote for each unit, with voice control via Amazon Alexa and Google Assistant
- Built-in sleep mode, auto restart, and refrigerant leak detection
Specs & Features
| Condenser Model |
MULTI4-27HP230C-O |
| Total System Capacity |
27,000 BTU |
| Zones Supported by Condenser |
Up to 4 (2 used in this system) |
| System SEER2 |
Up to 25 |
| System HSPF2-4 |
Up to 9.5 |
| Min. Outdoor Operating Temp |
5°F |
| Refrigerant |
R-454B |
| Compressor Warranty |
7 years (registered, professionally installed) |
| Parts Warranty |
5 years (registered, professionally installed) |
| Zone 1 Indoor Unit |
18,000 BTU Wall Mount (ESTAR), covers up to 800 sq. ft., SEER2 23.5 / EER2 12.7 / HSPF2-4 10.8, 49 dB |
| Zone 2 Indoor Unit |
9,000 BTU Wall Mount (ESTAR), covers up to 400 sq. ft., SEER2 25.8 / EER2 14.9 / HSPF2-4 12.5, 47 dB |
- Energy Star Certified condenser
- Each indoor air handler ships with a handheld remote and connects to the MRCOOL SmartHVAC app over Wi-Fi
- Limited lifetime warranty on covered components, in addition to the compressor/parts terms above
Details
Avermont Direct is an authorized MRCOOL dealer. This Olympus 4th Gen 27,000 BTU 2-zone system is backed by MRCOOL's 7-year compressor warranty and 5-year parts warranty when registered and professionally installed. With an 18,000 BTU and a 9,000 BTU wall-mount air handler, it's suited to conditioning two rooms of different sizes — such as a larger living area alongside a bedroom or office — from a single outdoor condenser. As with all ductless mini-split systems, professional HVAC installation is required.
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
