The MRCOOL Olympus 4th Gen MULTI4-27HP230C-O is a 27,000 BTU multi-zone heat pump condenser that conditions up to four indoor zones from a single outdoor unit. DC inverter technology holds each zone at its own setpoint while sipping power — up to 25 SEER2 — and keeps heating down to 5°F outdoor temperature.
Mix and match wall-mount, ceiling cassette, and concealed duct indoor units to suit the space. Control everything from the MRCOOL SmartHVAC app, the included remotes, or by voice through Amazon Alexa and Google Assistant.
Highlights
- 27,000 BTU cooling and heating — 2.25 ton, covers up to 1,125 sq. ft.
- Supports up to 4 indoor zones from one condenser
- Up to 25 SEER2, 13 EER2, 9.5 HSPF2 (Region 4)
- Rotary DC inverter compressor — 61 dB(A) operation
- Heats reliably down to 5°F outdoor temperature
- Next-gen R-454B refrigerant (low-GWP)
- Wi-Fi ready — MRCOOL SmartHVAC app, Alexa and Google Assistant
- Works with wall-mount, cassette, and concealed duct indoor units
Specifications
| Model |
MULTI4-27HP230C-O |
| Cooling Capacity |
27,000 BTU/h |
| Heating Capacity |
27,000 BTU/h |
| Tonnage |
2.25 Ton |
| Zones Supported |
Up to 4 |
| SEER2 |
Up to 25 |
| EER2 |
Up to 13 |
| HSPF2 (Region 4 / 5) |
9.5 / 7.0 |
| Power Supply |
208/230V, 1 Phase, 60 Hz |
| Min. Circuit Ampacity |
23 A |
| Max. Fuse / Breaker |
25 A |
| Refrigerant |
R-454B, 84.66 oz factory charge |
| Max. Total Lineset Length |
262.4 ft |
| Line Sizes |
Liquid 4 x 1/4 in. · Suction 3 x 3/8 in. + 1 x 1/2 in. (flare fittings) |
| Compressor |
Rotary DC inverter |
| Metering Device |
EXV |
| Fan Motor Speeds |
800 / 700 / 650 RPM |
| Sound Level |
61 dB(A) |
| Min. Operating Temp (Heat) |
5°F |
| Net Dimensions (W x H x D) |
37.24" x 31.89" x 16.14" |
| Net Weight |
138.89 lbs |
| Shipping Dimensions |
42.91" x 34.84" x 19.68" |
| Shipping Weight |
149.69 lbs |
| Color |
White |
| Certifications |
UL, CSA, ETL, ENERGY STAR, AHRI Certified |
Compatible Indoor Units
Pair with MRCOOL Olympus 4th Gen indoor units: O-09-HP-WMAH-230C-O, DUCT-09HP-230B-O, CASSETTE09HP-230C-O, O-12-HP-WMAH-230C-O, DUCT-12HP-230B-O, CASSETTE12HP-230C-O, O-18-HP-WMAH-230C-O, DUCT-18-HP-230B-O, CASSETTE18HP-230C-O, O-24-HP-WMAH-230C-O, DUCT-24HP-230B-O, and CASSETTE24HP-230C-O.
Warranty
- 7-year compressor warranty
- 5-year parts warranty
- 5-year remote warranty
Warranty requires professional installation and product registration.
Shipping
Ships free curbside via freight carrier. Returns accepted within 30 days of delivery; item must be unused, uninstalled, and in original packaging.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.