The MRCOOL Olympus 4th Gen MULTI4-27HP230C-O is a 27,000 BTU multi-zone heat pump condenser paired here with two 12,000 BTU and one 9,000 BTU wall-mount indoor air handlers, delivering independent, zone-by-zone heating and cooling in three separate rooms from a single outdoor unit.
Highlights
- Three wall-mounted indoor air handlers (12,000 BTU + 12,000 BTU + 9,000 BTU) provide independent heating and cooling in three separate rooms
- 27,000 BTU MULTI4-27HP230C-O condenser supports up to 4 indoor units total, leaving room to add a fourth zone later
- Condenser rated up to SEER2 25 and HSPF2-4 9.5 for efficient cooling and heating performance
- Rated for reliable heating performance down to 5°F outdoor temperatures
- The 12K wall-mount units cover up to 550 sq ft each (SEER2 25.5, EER2 13, HSPF2-4 10.6, 46 dB); the 9K wall-mount unit covers up to 400 sq ft (SEER2 25.8, EER2 14.9, HSPF2-4 12.5, 47 dB)
- Controlled via the MRCOOL SmartHVAC app, included remote controls, or voice commands through Amazon Alexa and Google Assistant
Specs & Features
| Condenser Model |
MULTI4-27HP230C-O |
| Condenser Capacity |
27,000 BTU |
| Zones |
3 |
| Indoor Units |
12,000 BTU Wall Mount x2 + 9,000 BTU Wall Mount |
| Max Indoor Units Supported by Condenser |
Up to 4 |
| Condenser SEER2 |
Up to 25 |
| Condenser HSPF2-4 |
Up to 9.5 |
| Minimum Outdoor Operating Temperature |
5°F |
| 12K Wall Mount Coverage / Efficiency |
Up to 550 sq ft; SEER2 25.5, EER2 13, HSPF2-4 10.6; 46 dB |
| 9K Wall Mount Coverage / Efficiency |
Up to 400 sq ft; SEER2 25.8, EER2 14.9, HSPF2-4 12.5; 47 dB |
| Refrigerant |
R-454B |
| Warranty |
Limited lifetime on indoor units; 7-year compressor and 5-year parts coverage on the system when registered and installed by a licensed professional |
| Energy Star |
Certified |
- Wall-mounted air handlers install high on an interior wall for straightforward technician access and airflow
- Controlled via the MRCOOL SmartHVAC app, included remote control(s), or voice commands through Amazon Alexa and Google Assistant
- Sleep mode, auto restart, and refrigerant leak detection built in
Details
Avermont Direct is an authorized MRCOOL dealer. This Olympus 4th Gen 3-zone system pairs a 27,000 BTU heat pump condenser with two 12,000 BTU wall-mount units and one 9,000 BTU wall-mount unit, giving each room independent heating and cooling control — such as two larger bedrooms plus a smaller office or bonus room. The system is covered by a limited lifetime warranty on the indoor units plus a 7-year compressor warranty and 5-year parts warranty on the condenser when registered and installed by a licensed professional, and it runs on R-454B refrigerant. 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
