OLMO Outdoor Units for MiniSplits

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The outdoor unit, commonly referred to as the condenser or heat pump, is the hardworking mechanical core of any ductless or ducted mini split system. It is responsible for absorbing or rejecting thermal energy from the outside environment, compressing refrigerant efficiently, and powering the indoor air handlers that keep your home perfectly comfortable. Choosing a premium outdoor unit ensures your system delivers reliable heating and cooling, drops utility costs, and performs flawlessly in extreme weather conditions.

At South Mini Splits, we offer a premier inventory of single-zone and multi-zone outdoor condensers built for long-term reliability and peak efficiency. Whether you are creating a simple single-room zone or looking for a heavy-duty multi-zone core to power an entire home, our catalog features the industry's most trusted manufacturers. Explore specialized DIY equipment from MRCOOL, high-efficiency systems from ACiQ, commercial-grade engineering from Cooper&Hunter or Cooper&Hunter B2B, cost-effective OLMO hardware, value-driven Bravo lines, and gold-standard Mitsubishi climate platforms.

💡 Why Source Your Mini Split Outdoor Units From Us?

Understanding OLMO Outdoor Units for MiniSplits

Our US-based support team helps contractors, builders, and DIY enthusiasts select outdoor condensers equipped with the precise inverter profiles, chassis heating elements, and anti-corrosive coatings needed to withstand distinct regional microclimates:

The West Coast & Mountain Regions: Engineering hyper-heating inverter profiles that easily handle sudden mountain drops and damp coastal air for projects in Los Angeles, CA, San Diego, CA, San Francisco, CA, Sacramento, CA, San Jose, CA, Fresno, CA, Boise, ID, Denver, CO, Colorado Springs, CO, Las Vegas, NV, Reno, NV, Albuquerque, NM, and Santa Fe, NM.

  • The Southwest & Texas Plains: Supplying high-ambient cooling assemblies designed to operate smoothly under blazing sun and intense heatwaves across Phoenix, AZ, Tucson, AZ, Houston, TX, Dallas, TX, Fort Worth, TX, Austin, TX, San Antonio, TX, Colleyville, TX, and Little Rock, AR.

  • The Midwest & Great Lakes: Providing rugged sub-zero outdoor heating units featuring factory-installed base pan heaters to prevent ice buildup in Chicago, IL, Aurora, IL, Joliet, IL, Naperville, IL, Rockford, IL, Springfield, IL, Detroit, MI, Grand Rapids, MI, Minneapolis, MN, St. Paul, MN, Indianapolis, IN, Fort Wayne, IN, Des Moines, IA, Wichita, KS, Kansas City, MO, St. Louis, MO, Omaha, NE, and Lincoln, NE.

  • The Northeast & New England: Delivering versatile multi-zone condensers ideal for space-constrained property lines and historical homes in New York City, NY, Buffalo, NY, Yonkers, NY, Rochester, NY, Syracuse, NY, Albany, NY, Boston, MA, Worcester, MA, Springfield, MA, Cambridge, MA, Lowell, MA, Manchester, NH, Hartford, CT, New Haven, CT, Newark, NJ, Jersey City, NJ, and Baltimore, MD.

  • The South & Gulf Coast: Utilizing high-grade, salt-air resistant gold or blue fin coatings to ensure continuous humidity control for installations in Miami, FL, Tampa, FL, Orlando, FL, St. Petersburg, FL, Jacksonville, FL, Atlanta, GA, Savannah, GA, Birmingham, AL, Montgomery, AL, Jackson, MS, New Orleans, LA, Baton Rouge, LA, and Wilmington, DE.

  • The Pacific & Non-Contiguous Regions: Delivering extreme-weather-treated outdoor setups built to survive freezing sub-zero fronts or tropical climates in Seattle, WA, Spokane, WA, Tacoma, WA, Portland, OR, Eugene, OR, Louisville, KY, Lexington, KY, Billings, MT, Portland, ME, Honolulu, HI, and Anchorage, AK.

    • Explore Our Specialized Outdoor Condenser Lineup

    Achieving the perfect balance of comfort, energy savings, and performance means selecting an outdoor unit configuration built precisely for your structural needs. We stock a diverse selection of condenser styles:

    Single-Zone Outdoor Condensers

    Designed to power a single dedicated indoor air handler, our single-zone units provide high efficiency and whisper-quiet operation. They are perfect for master suites, home additions, or detached garages. If you want top-tier performance, explore specialized options like the Cooper&Hunter 18k BTU Outdoor Condenser or the Cooper&Hunter 28k BTU Condenser Unit. For severe winter climates, check out the specialized Cooper&Hunter Hyper Heat 9,000 BTU Single Zone, 12,000 BTU Single Zone, and 48,000 BTU Single Zone lines, which provide continuous thermal output even when ambient outdoor temperatures plunge.

    Multi-Zone Outdoor Condensers

    Multi-zone condensers are the ultimate option for complete residential zoning. They allow a single outdoor unit to power up to five or six independent indoor zones via dedicated refrigerant ports. This lets you combine high-wall mount units, recessed cassettes, and floor air handlers onto one efficient outdoor footprint. We supply highly adaptable platforms, including the Bravo Milano 18k BTU Multi-Zone Condenser and the Milano Outdoor 24k, 30k, and 36k units.

    For high-capacity multi-room systems, explore the versatile OLMO Multi-Zone 24k BTU (2-Ton), 36k BTU (2.5-Ton), or 42k BTU (3.5-Ton) lines. Additionally, we stock new, environmentally compliant R454B options, such as the OLMO Multi-Zone R454B 18k BTU, 27k BTU, 36k BTU, and 42k BTU units. Professional installers will also appreciate the high-efficiency Cooper&Hunter Hyper Heat Multi-Zone R454B 19k BTU, 28k BTU, 36k BTU, and 48k BTU models, engineered with advanced electronic expansion valves and no-cut-off-valve architecture.

    DIY-Ready Multi-Zone Condensers

    If you prefer to install the system yourself without specialized trade tools like vacuum pumps or refrigerant gauges, the 5th Generation MRCOOL DIY series is the ultimate choice. These condensers pair seamlessly with pre-charged quick-connect linesets. We stock the complete multi-zone lineup: MRCOOL DIY 5th Gen 18k BTU (3-Zone), 27k BTU (4-Zone), 36k BTU (5-Zone), 48k BTU (6-Zone), and the high-capacity 55k BTU (6-Zone) multi-split units. If you are updating an older system, we also carry classic configurations like the MRCOOL Olympus 18k, 27k, and 36k 4th Generation multi-zone condensers.

    Central Ducted & Inverter Heat Pump Condensers

    If you want to upgrade your home's traditional duct network to a high-efficiency inverter setup, look no further than our central ducted heat pump condensers. These side-discharge units feature compact designs that save space compared to bulky, top-discharge central air conditioners. Explore high-efficiency options like the MRCOOL VersaPro 1.5-Ton, 2-Ton, or 4-Ton units.

    For outstanding heating performance in cold climates, check out the MRCOOL Hyper Heat Central Ducted 2.5-Ton, 30k BTU R454B, 36k BTU, or 48k BTU systems. We also stock the incredibly versatile MRCOOL Universal R454B 3-Ton and 4-Ton inverter condensers, alongside the premium ACiQ 4-Ton 15-SEER High-Efficiency Central Heat Pump.

    Technical Engineering & System Compatibility

    Building an efficient, long-lasting climate system requires matching your outdoor condenser to the correct indoor equipment, structural constraints, and optional components:

     

    Mini Split BTU Sizing & Application Guide

    Use our quick reference chart to match your room size with the ideal system capacity.

    Capacity Sq. Footage Application
    6,000 BTU150–250Small bedrooms & offices
    9,000 BTU250–450Standard bedrooms
    12,000 BTU450–600Kitchens & studios
    18,000 BTU600–1,000Living rooms & garages
    24,000 BTU1,000–1,200Open floor plans
    36,000 BTU1,500–1,700Commercial & fitness
    48,000 BTU1,900–2,100Large warehouses
    60,000 BTU2,400–2,800+Commercial estates

    When to "Size Up"

    High Ceilings (10ft+)

    If your ceilings are 10 feet or higher, you are cooling a larger volume of air. We recommend increasing your BTU choice by 20%.

    Poor Insulation

    For older homes or buildings with single-pane windows, opt for the next size up to ensure the unit can maintain the set temperature.

    Kitchen Environments

    Appliances generate significant heat. If the unit is for a kitchen, add 4,000 BTUs to your square footage calculation.

    Heavy Sun Exposure

    Rooms with large south-facing windows or "sunrooms" act like greenhouses. Increase your BTU capacity by 10-15%

    Occupancy

    If the area regularly hosts more than two people (like a conference room or classroom), add 600 BTUs per additional person..

    Need Help Sizing?

    If you aren't sure which unit is right for your project, use our BTU Calculator or contact our USA-based support team for a custom recommendation.

    Open BTU Calculator

    Frequently Asked Questions

    A: Yes. Most multi-zone outdoor units allow you to connect fewer indoor air handlers than the maximum number of available ports. For example, you can connect two or three indoor units to a 4-zone condenser and leave the remaining port plugged for future expansions. However, you must ensure that the combined BTU capacity of the connected indoor units meets the minimum operational capacity required by the outdoor condenser.

    A: Standard heat pump condensers lose efficiency and heating capacity when outdoor temperatures drop below freezing. "Hyper-Heat" or high-efficiency low-ambient units feature advanced inverter compressors and base pan heaters designed to maintain up to 100% of their heating capacity in temperatures as low as 5°F (and continue operating down to -15°F or lower). You should choose a Hyper-Heat model if you live in northern regions that experience severe freezing winter fronts.

    A: While a poured concrete pad is an excellent option, it is not strictly required. You can install an outdoor unit on a level, heavy-duty composite plastic equipment pad placed over a stable gravel base. Alternatively, if ground space is limited or you want to keep the unit safe from deep snowdrifts, you can mount the condenser directly to an exterior wall using heavy-duty steel wall brackets.

    A: Because mini split condensers utilize a side-discharge fan design, they draw air through the back of the chassis and blow it out the front. For optimal airflow and system efficiency, you should maintain at least 6 to 12 inches of clear space behind the unit (facing the wall) and roughly 24 to 36 inches of unobstructed space in front of the fan discharge grill. Always consult your specific product manual for exact clearance requirements.

    A: No. DIY-series outdoor condensers (like the MRCOOL DIY lineup) feature specialized, pre-charged quick-connect mechanical couplings designed specifically to work with matching pre-charged linesets and DIY indoor heads. Standard professional-series outdoor units utilize traditional mechanical flare fittings that require professional HVAC line cutting, flaring, vacuuming, and nitrogen testing. Mixing DIY components with pro-series hardware will cause system failure and void the manufacturer's warranty.