MrCool Olympus 4-Zone 27,000 BTU Mini-Split Heat Pump System for Up to 4 Rooms – Choose Your Indoor Units, 4th Generation, R454B
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Outdoor Unit
1 × MrCool Olympus 4-Zone 27,000 BTU Mini-Split Heat Pump Condenser - Up to 25 SEER2, 4th Generation, R454B (MULTI4-27HP230C-O)
$1,932.00
$1,932.00
Heat pumps lose efficiency below ~25°F. A heat kit adds electric backup for the coldest days. Most homes this size choose 8–10 kW.








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0% Interest — for orders over $3000
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No Credit Needed — Offered at checkout
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7 night Luxury Resort Stay — For orders over $3000
What's Included
What's Included
This system includes one fully charged MrCool Olympus 4th Generation multi-zone mini-split heat pump condenser (outdoor unit) rated for up to 27,000 BTUs and supports up to 4 indoor units. A minimum of 2 indoor units is required for proper operation. Approved indoor unit combinations may exceed the condenser’s nominal BTU rating; however, total system output will not exceed the rated capacity of the outdoor unit when multiple indoor units operate simultaneously.
MrCool Olympus 4-Zone 27,000 BTU Mini-Split Heat Pump Condenser – Up to 25 SEER2, 4th Generation, R454B
Model Number
MULTI4-27HP230C-O
Dimensions
37.24" W x 16.14" D x 31.89" H
Documents
MULTI4-27HP230C-O Specifications
Warranty
5-Year Parts | 7-Year Compressor
Wall Mount Indoor Units
Ceiling Cassette Indoor Units
Horizontal Ducted Indoor Units
Line Sets for MrCool Olympus Mini-Split Systems
Ducted: 217291696
Non-Ducted: 217291695
Ducted: 21
Non-Ducted: 25
Outdoor Unit Details
Outdoor Unit Details
MRCOOL Olympus 27K 4-Zone Multi-Zone Heat Pump Condenser
Flexible Multi-Room Heating & Cooling for Up to 4 Zones
The MRCOOL Olympus 4th Generation 27,000 BTU Multi-Zone Heat Pump Condenser is engineered to deliver efficient comfort across up to 4 separate rooms or zones. Ideal for larger homes, additions, and spaces with varying comfort needs, this system allows individualized temperature control while eliminating the energy loss associated with traditional ducted systems.
With advanced inverter-driven performance and efficiency ratings up to 25.0 SEER2, this condenser provides dependable year-round operation while helping lower utility costs. Compatible with multiple MRCOOL indoor unit styles, including wall-mounted, cassette, and ducted air handlers, the Olympus system offers installation flexibility for virtually any residential application.
Features & Benefits
- 27,000 BTU heating and cooling capacity (2.25 Ton)
- Supports up to 4 indoor air handlers for zoned comfort
- Up to 25.0 SEER2 | 13.0 EER2 | 9.5 HSPF2-4 efficiency ratings
- Advanced inverter compressor technology for consistent comfort
- Compatible with Olympus wall mount, ceiling cassette, and ducted indoor units
- Heating operation down to 5°F outdoor temperature
- Uses environmentally friendly R-454B refrigerant
- SmartHVAC app compatibility for remote access and scheduling
- Works with Amazon Alexa and Google Assistant
- 208/230V single-phase power supply
- Outdoor unit dimensions: 37.24" W x 16.14" D x 31.89" H
- 7-Year Compressor Warranty and 5-Year Parts Warranty
How MRCOOL Multi-Zone Systems Work
MRCOOL Olympus multi-zone systems allow multiple indoor air handlers to connect to a single outdoor condenser for customized comfort throughout the home. Each indoor unit should be properly sized for the specific room or area it serves, while the outdoor condenser should be sized for the home's overall heating and cooling needs.
When multiple indoor units operate at the same time, the system shares the condenser’s available heating or cooling capacity across all active zones. Multi-zone systems also operate in one mode at a time, meaning all connected indoor units must run in either heating mode or cooling mode simultaneously.
Indoor Unit Details
Indoor Unit Details
MRCOOL Olympus Wall Mount Air Handlers for Multi-Zone Mini-Split Systems
Energy-Efficient Zoned Heating & Cooling with Smart Inverter Comfort
The MRCOOL Olympus 4th Generation Wall Mount Air Handlers deliver efficient, room-by-room heating and cooling for homes and light commercial applications using compatible Olympus multi-zone condensers. Available in 9,000 BTU, 12,000 BTU, 18,000 BTU, and 24,000 BTU capacities, these ductless indoor units provide flexible comfort solutions for bedrooms, offices, garages, additions, living rooms, and other individualized comfort zones.
Designed with advanced inverter technology and eco-friendly R-454B refrigerant, Olympus wall mount air handlers help maintain consistent indoor temperatures while reducing energy consumption and operating noise. Built-in WiFi compatibility allows convenient control through the MRCOOL SmartHVAC app, Amazon Alexa, Google Assistant, or the included wireless remote for customizable year-round comfort.
Features & Benefits
- Available in 9K, 12K, 18K, and 24K BTU heating and cooling capacities
- Compatible with MRCOOL Olympus 4th Generation multi-zone condensers
- Wall-mounted ductless design saves floor space and simplifies installation
- Advanced inverter technology for energy-efficient comfort and temperature consistency
- Ultra-quiet operation with sound levels as low as 16 dB(A)
- Built-in WiFi SmartHVAC app compatibility for remote system control
- Works with Amazon Alexa and Google Assistant
- Eco-friendly R-454B refrigerant with lower global warming potential
- Ideal for bedrooms, offices, garages, additions, living rooms, and open spaces
- Individual room temperature control for customized zoned comfort
- Multiple fan speed and airflow settings for personalized comfort
- 208/230V single-phase electrical operation
- Wireless remote control included
- Backed by a 7-Year Compressor Warranty and 5-Year Parts Warranty with professional installation
MRCOOL Olympus Ceiling Cassette Air Handlers for Multi-Zone Mini-Split Systems
Discreet Ceiling-Mounted Heating & Cooling with Quiet Inverter Performance
The MRCOOL Olympus 4th Generation Ceiling Cassette Air Handlers provide efficient, low-profile heating and cooling for residential and light commercial applications using compatible Olympus multi-zone condensers. Available in 9,000 BTU, 12,000 BTU, 18,000 BTU, and 24,000 BTU capacities, these ceiling-mounted indoor units deliver personalized comfort while maintaining a clean, built-in appearance that blends seamlessly into modern interiors.
Designed for installation within suspended or finished ceilings, Olympus cassette air handlers distribute conditioned air evenly throughout the room without occupying valuable wall or floor space. Advanced inverter technology, eco-friendly R-454B refrigerant, built-in WiFi compatibility, and quiet operation make these systems an excellent choice for bedrooms, offices, conference rooms, living spaces, retail environments, and other applications where aesthetics and comfort are equally important.
Features & Benefits
- Available in 9K, 12K, 18K, and 24K BTU heating and cooling capacities
- Compatible with MRCOOL Olympus 4th Generation multi-zone condensers
- Flush-mount ceiling cassette design for a clean, built-in appearance
- Advanced inverter technology for energy-efficient comfort and temperature consistency
- Quiet indoor operation ideal for residential and commercial spaces
- Built-in WiFi SmartHVAC app compatibility for remote system control
- Works with Amazon Alexa and Google Assistant
- Eco-friendly R-454B refrigerant with lower environmental impact
- Even airflow distribution for improved room comfort coverage
- Multiple fan speed and airflow settings for personalized comfort
- Ideal for spaces where wall-mounted systems are not preferred
- 208/230V single-phase electrical operation
- Wireless remote control included for convenient operation
- Suitable for bedrooms, offices, additions, living rooms, retail spaces, and open floor plans
MRCOOL Olympus Horizontal Ducted Air Handlers for Multi-Zone Mini-Split Systems
Concealed Ducted Heating & Cooling with Quiet Inverter-Driven Comfort
The MRCOOL Olympus 4th Generation Horizontal Ducted Air Handlers provide discreet, energy-efficient heating and cooling for residential and light commercial applications using compatible Olympus multi-zone condensers. Available in 9,000 BTU, 12,000 BTU, 18,000 BTU, and 24,000 BTU capacities, these concealed ducted indoor units deliver personalized comfort while keeping HVAC equipment hidden above ceilings, inside soffits, or within compact mechanical spaces.
Designed to combine the flexibility of traditional ducted airflow with advanced ductless inverter technology, Olympus horizontal ducted air handlers help maintain consistent indoor temperatures while reducing energy consumption and operating noise. Built-in WiFi compatibility, eco-friendly R-454B refrigerant, and flexible duct connections make these systems ideal for bedrooms, offices, living rooms, additions, open floor plans, and applications where visible indoor equipment is not preferred.
Features & Benefits
- Available in 9K, 12K, 18K, and 24K BTU heating and cooling capacities
- Compatible with MRCOOL Olympus 4th Generation multi-zone condensers
- Concealed horizontal ducted installation for a clean, hidden appearance
- Advanced inverter technology for energy-efficient operation and comfort consistency
- Quiet indoor performance for residential and light commercial spaces
- Flexible duct connections for customized airflow distribution
- Built-in WiFi SmartHVAC app compatibility for remote system control
- Works with Amazon Alexa and Google Assistant
- Eco-friendly R-454B refrigerant with lower environmental impact
- Low-profile cabinet design for tight installation spaces
- Even airflow distribution for improved room-to-room comfort
- Ideal for applications where wall-mounted or ceiling cassette units are not preferred
- 208/230V single-phase electrical operation
- Wireless remote control included for convenient operation
MRCOOL Olympus Mini-Split Line Sets for Multi-Zone and Single-Zone Systems
Insulated Copper Refrigerant Line Sets for Reliable Ductless HVAC Installations
MRCOOL Olympus Line Sets are designed to provide dependable refrigerant connections between compatible indoor air handlers and outdoor condensers for ductless mini-split systems. Available in multiple tubing sizes and lengths, these insulated copper line sets support a wide range of Olympus wall mount, ceiling cassette, and concealed ducted applications for both residential and light commercial installations.
Designed for reliable refrigerant flow and installation flexibility, Olympus line sets are available in 16 ft, 25 ft, and 50 ft lengths to accommodate various equipment layouts and installation requirements. Select 16 ft and 25 ft models include communication wire for simplified setup, while 50 ft line sets are designed for extended-distance installations and do not include communication wire.
Features & Benefits
- Compatible with MRCOOL Olympus mini-split systems
- Available in multiple tubing sizes for 9K, 12K, 18K, and 24K indoor units
- Offered in 16 ft, 25 ft, and 50 ft lengths for installation flexibility
- Insulated copper tubing supports efficient refrigerant transfer
- Designed for single-zone and multi-zone mini-split applications
- Flexible copper construction for easier routing and installation
- Supports reliable heating and cooling system performance
- 16 ft and 25 ft line sets include communication wire for simplified installation
- 50 ft line sets do not include communication wire
- Ideal for residential and light commercial HVAC installations
- Suitable for wall mount, ceiling cassette, and concealed ducted indoor units
- Designed for professional HVAC installation applications
Specifications Sheets
Specifications Sheets
Warranty Information
Warranty Information
Shipping & Returns
Shipping & Returns
Fast nationwide fulfillment from the USA. Free shipping on qualifying orders over $1,500. See our shipping and returns policy for full details.