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    • MRCOOL Olympus 18,000 Btu 1.5 Ton Ducted Mini Split Air Handler 230V/60Hz, DUCT-18HP-230B-O
    • MRCOOL Olympus 18,000 Btu 1.5 Ton Ducted Mini Split Air Handler 230V/60Hz, DUCT-18HP-230B-O
    • MRCOOL Olympus 18,000 Btu 1.5 Ton Ducted Mini Split Air Handler 230V/60Hz, DUCT-18HP-230B-O
    • MRCOOL Olympus 18,000 Btu 1.5 Ton Ducted Mini Split Air Handler 230V/60Hz, DUCT-18HP-230B-O
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    MRCOOL Olympus 18,000 Btu 1.5 Ton Ducted Mini Split Air Handler 230V/60Hz, DUCT-18HP-230B-O

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    Sale Price $847.00 Regular Price $1,058.75
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    MRCOOL® Olympus 18,000 BTU (1.5 Ton) Ducted Mini Split Air Handler 230 V/60 Hz | DUCT-18HP-230B-O

    The MRCOOL® Olympus Series stands at the peak of professional-grade comfort and performance. The Olympus 18,000 BTU (1.5 Ton) Ducted Mini Split Air Handler is designed for larger zones and whole-room ducted applications, delivering premium heating and cooling with quiet precision.

    Important Note: Olympus models are built for traditional installation and are NOT pre-charged. Professional HVAC installation is required — the system must be nitrogen evacuated, vacuumed and pressure-tested before releasing the refrigerant charge from the outdoor condenser to validate warranty coverage and ensure optimal performance.


    High-Capacity Comfort Meets Discreet Ducted Design

    This air handler integrates into your ductwork for seamless, hidden comfort. Whether for a spacious living area, open-plan zone, or light commercial space, the Olympus 18K handles the job with modern efficiency and minimal noise.

    • Coverage Area: Ideal for rooms, zones or areas up to approximately 800 – 1,500 sq ft (depending on insulation and conditions).
    • Low-Profile Installation: Ceiling or closet-mounted ducted configuration that disappears into your space.
    • Control Flexibility: Includes wired wall controller and handheld remote for full comfort control.
    • Eco-Friendly Refrigerant: Uses R-454B (or compatible R-410A version depending on region) for responsible heating & cooling performance.
    • Quiet Operation: Engineered blower and insulated cabinet means minimal audible noise, maximum comfort.
    • Warranty: Backed by a 5-Year Parts Warranty (and longer compressor warranty when installed professionally).

    Professional Installation Required

    As part of the Olympus professional series, this air handler must be installed by a licensed HVAC technician. Pre-charging, evacuation and pressure testing ensures the system’s refrigerant integrity, energy efficiency and warranty eligibility.

    Installation Reminder: Olympus systems must be installed by a qualified HVAC professional to maintain full warranty protection.

    Technical Specifications

    Model BTU / Ton Voltage / Hz Coverage Area* Refrigerant Warranty
    DUCT-18HP-230B-O 18,000 BTU (1.5 Ton) 230 V / 60 Hz Up to ~800-1,500 sq ft† R-454B (or R-410A depending on region) 5-Year Parts Warranty

    *Coverage varies based on insulation, climate, ceiling height and window area. †Refer to installer for sizing guidance.


    Why the Olympus Series is the Best Choice

    Within the “Good, Better, Best” lineup of MRCOOL® offerings, the Olympus Series is the Best. It’s designed for professional installations, larger zones, full comfort systems, and offers the highest tier of durability and performance. Ideal for homeowners and contractors seeking premium ducted mini-split solutions that deliver reliable long-term comfort.

    • Premium build for demanding comfort applications
    • Compatible with Olympus outdoor condensers for single- or multi-zone setups
    • Engineered for quiet, efficient performance
    • Full nationwide shipping from the USA’s most trusted MRCOOL® dealer

    Nationwide Shipping & Trusted Dealer Support

    Buy your MRCOOL® Olympus 18,000 BTU Ducted Mini Split Air Handler today from MRCOOLDIYDirect.com — the USA’s most trusted MRCOOL® dealer. We ship nationwide with fast delivery, factory-backed warranty and expert support.


    Model: DUCT-18HP-230B-O
    BTU: 18,000 (1.5 Ton)
    Voltage: 230 V/60 Hz
    Series: Olympus – Best Tier
    Warranty: 5-Year Parts (plus compressor warranty)
    Availability: Ships Nationwide from MRCOOLDIYDirect.com

    Popular keywords: MRCOOL Olympus 18K ducted mini split air handler, MRCOOL Olympus DUCT-18HP-230B-O, 1.5 Ton ducted air handler, professional install mini split, MRCOOL dealer USA, R-454B ducted HVAC system.

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    Service & Support

    Manufacturer Warranty

    This product is covered by the manufacturer’s warranty against defects in materials and workmanship when installed and used according to the manufacturer’s guidelines. Warranty terms and coverage periods vary by manufacturer and product type. Please refer to the official product documentation or contact our team if you need help verifying warranty details.

    Technical Support

    Freedom HVAC Supply is staffed by people who actually understand HVAC systems. If you need help confirming compatibility, selecting the correct replacement part, or understanding installation requirements, our team is available to assist before and after your purchase.

    Product Documentation

    Installation manuals, specification sheets, wiring diagrams, and other technical documentation are available whenever possible. These resources help ensure proper installation, system compatibility, and safe operation of your equipment.

    Parts Compatibility & Cross-Reference

    Many HVAC parts replace or supersede older manufacturer part numbers. We provide replacement part numbers and compatible model information on product pages to help technicians and homeowners verify the correct component before ordering.

    Replacement Parts & Accessories

    Freedom HVAC Supply carries genuine replacement components and compatible accessories to keep HVAC systems running reliably. From control boards and motors to sensors, line sets, and installation accessories, we supply the parts professionals depend on.

    Customer Support

    If you have questions about product compatibility, warranty coverage, or installation considerations, our support team is ready to help. Our goal is to make sure you get the right part the first time so your system can get back up and running quickly.

    FAQs About Our HVAC Products

    Quick answers to questions about ordering, compatibility, and installation.

    Ordering & Compatibility

    1. Do you sell HVAC equipment to homeowners and DIY installers?

    Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.

    2. How do I know if this HVAC product is compatible with my system?

    Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.

    3. Can HVAC contractors purchase from Freedom HVAC Supply?

    Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.

    Installation & Support

    1. Do HVAC systems require professional installation?

    Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.

    2. Can you help me choose the right HVAC system or part?

    Yes. Our support team can assist with product selection based on your application, space, and installation needs.

    3. Do you provide installation manuals or documentation?

    Manufacturer installation guides and documentation are included or available upon request for most products.

    Warranty & Shipping

    1. Do HVAC products include a manufacturer warranty?

    Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.

    2. Do you ship HVAC equipment nationwide?

    Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.

    3. What should I know about freight delivery for HVAC equipment?

    Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.

    Need HVAC Help?

    Get help with ordering, compatibility, or installation questions.

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