Product Description
Homes with several living areas often experience inconsistent comfort because a single system cannot adjust temperatures independently for each space. The MULTI3-18HP230C-O helps resolve this by supporting multi-zone operation, allowing different rooms to maintain their own climate settings while using one efficient outdoor unit.
As part of the MRCOOL Olympus 4th Gen Multi-Zone Condensers series, this system delivers efficient, customizable climate management for modern homes. Its ductless design supports wall-mounted units, ceiling cassettes, and concealed duct options, allowing homeowners to tailor the system to their layout while maintaining a clean, streamlined appearance.
An efficient outdoor unit is essential when multiple rooms require reliable heating and cooling. The MRCOOL MULTI3-18HP230C-O delivers 18K BTU and supports up to three indoor units, enabling individualized temperature control across separate zones. Advanced inverter technology adjusts compressor speed based on demand, reaching up to 25.1 SEER2 and 10 HSPF2-4 while maintaining stable comfort. The unit uses environmentally friendly R-454B refrigerant and carries Energy Star Certification for responsible energy use. The MRCOOL Olympus 18K BTU condenser also operates in outdoor temperatures as low as 5°F, helping ensure dependable heating and cooling year-round.
Managing indoor comfort is easier with built-in smart control options. The system operates through the SmartHVAC® app on Apple or Android devices for remote adjustments or voice commands using Amazon Alexa and Google Assistant. Features such as sleep mode, auto restart, and refrigerant leak detection support reliable operation. Installation by a licensed professional is required where applicable, and registered professionally installed systems include a 7-year compressor and 5-year parts warranty.
One customer noted, “Comfortable temperatures were hard to maintain with our previous system, and we were constantly adjusting thermostats. After installing this system, each space feels more balanced and managing the settings throughout the day has become much simpler.”
This feedback reflects how multi-zone systems provide more precise climate management. Consistent performance and flexible control help maintain stable comfort throughout the home.
Created for efficiency, adaptability, and dependable performance, the MRCOOL Olympus condenser delivers long-term comfort for homes requiring flexible multi-room temperature control.
Product Highlights
| Highlight | Details |
|---|---|
| Multi-Zone Operation | Powers up to three indoor units for room-by-room climate control |
| Advanced Inverter Technology | Maintains efficient, stable heating and cooling performance |
| High Efficiency Ratings | SEER2 up to 25.1 and HSPF2-4 up to 10 for energy-saving operation |
| R-454B Refrigerant | Environmentally friendly refrigerant with lower environmental impact |
| SmartHVAC® App Control | Manage temperature from Apple or Android devices |
| Voice Assistant Integration | Control settings using Amazon Alexa or Google Assistant |
| Cold Climate Operation | Operates in outdoor temperatures as low as 5°F |
| Energy Star Certified | Meets strict efficiency standards |
MRCOOL Olympus 4th Gen Multi-Zone Condenser (MULTI3-18HP230C-O) – flexible multi-room climate control with advanced energy efficiency Specs
| Category | Specification | Details |
|---|---|---|
| General | Type | Mini-Split |
| Performance | Tonnage | 1.5 |
| Cooling Capacity( BTU) | 18000 | |
| Heating Capacity( BTU) | 19000 | |
| Maximum Coverage Area (sq ft) | Up to 750 | |
| Inverter (Yes/No) | DC | |
| Decibel Rating - dba | 59.5 | |
| Zone Capacity | 3 | |
| Condenser Fan Motor | RPM: 750/600/500 | |
| Efficiency | SEER2 | Up to 25.1 |
| EER2 | Up to 14 | |
| HSPF2-4 / HSPF2-5 | 9.8 / 7.8 | |
| Refrigeration | Metering Device | EXV + Capillary |
| Refrigerant Type | R-454B | |
| Max Line Set Length (ft) | 196.8 total | |
| Liquid Line Size | 3 x 1/4 | |
| Suction Line Size | 3 x 3/8 | |
| Electrical | Phase | 1 |
| Cycle (Hz) | 60 | |
| Voltage | 208/230 | |
| Max Fuse Breaker (A) | 20 | |
| Min Circuit Ampacity (A) | 16 | |
| Certifications | Certifications | AHRI / Energy Star |
| Warranty | Warranty | 5-Year Parts / compressor 5-Years / Remote 5 Years |
| Safety | Contains Compressed Gas (Yes/No) | Yes |
| Has Batteries (Yes/No) | Yes | |
| Restricted States | GU, PR, VI | |
| Dimensions | Net (D×W×H) inches | 13.46x35.04x26.5 |
| Net Weight (lbs) | 100.53 | |
| Gross (D×W×H) inches | 17.24x40.55x29.53 | |
| Gross Weight (lbs) | 109.35 |
Frequently Asked Questions
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The system is designed to power up to three compatible MRCOOL indoor units, allowing individual temperature control across multiple rooms.
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