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    MRCOOL Olympus 18,000 BTU 1.5 Ton Ductless Mini Split Ceiling Cassette with Panel 230V/60Hz, CASSETTE18HP-230C-P-O

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    Sale Price $666.00 Regular Price $832.50
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    MRCOOL® Olympus 18,000 BTU (1.5 Ton) Ductless Mini Split Ceiling Cassette with Panel 230 V / 60 Hz | CASSETTE18HP-230C-P-O

    The MRCOOL® Olympus Series defines premium “Best Tier” comfort—built for professional installation, quiet performance, and elegant ceiling integration. The Olympus 18,000 BTU (1.5 Ton) Ceiling Cassette provides powerful, energy-efficient heating and cooling for spaces up to 800 sq. ft., making it ideal for larger bedrooms, living areas, and light commercial applications.

    Important: Olympus indoor units are not pre-charged. Professional HVAC installation is required. The system must be nitrogen-evacuated and vacuumed prior to releasing the refrigerant charge from the outdoor condenser to maintain performance and warranty coverage.


    Premium Ceiling Comfort with Modern Style

    • Seamless Ceiling Integration: Flush-mount recessed 4-way design blends with modern interiors and maximizes usable space.
    • Even Airflow Distribution: 360° discharge pattern ensures balanced heating and cooling throughout the room.
    • Quiet Operation: Low-noise fan (~44 dB) keeps environments peaceful while maintaining strong airflow.
    • Efficient Coverage: Ideal for rooms up to 800 sq. ft.—perfect for living rooms, open layouts, or office spaces.
    • Eco-Friendly Refrigerant: Uses advanced R-454B with low global warming potential (GWP).
    • Energy-Smart Performance: Engineered for efficiency to deliver year-round comfort while reducing utility costs.
    • Comprehensive Warranty: Limited Lifetime / 7-Year Compressor / 5-Year Parts Coverage for lasting confidence.

    Technical Specifications

    Model Capacity Voltage / Hz Coverage Area* Air Distribution Sound Level Refrigerant Warranty
    CASSETTE18HP-230C-P-O 18,000 BTU (1.5 Ton) 230 V / 60 Hz Up to 800 sq. ft.* Recessed 4-Way 360° Airflow ≈ 44 dB (Quiet Mode) R-454B Lifetime (Limited) / 7 Compressor / 5 Parts

    *Actual coverage varies based on climate, insulation, and ceiling height.


    Professional Installation Required

    Olympus cassettes are professional-grade systems that require licensed installation. Technicians must perform a full nitrogen leak check and vacuum the lines before releasing the outdoor unit’s charge. Proper setup ensures peak efficiency, reliability, and valid warranty coverage.

    Reminder: Olympus Series = Best Performance + Professional Installation Required.

    What’s Included

    • MRCOOL® Olympus 18K Ceiling Cassette Indoor Unit
    • Decorative Flush Panel
    • Installation Hardware and User Manual

    Recommended Accessories

    • Compatible Olympus Outdoor Condenser (properly sized)
    • Refrigerant Line Set and Communication Cable (installer supplied)
    • Condensate pump, drain hose, and surge protection kit

    Nationwide Shipping & Trusted Support

    Order from MRCOOLDIYDirect.com — the USA’s most trusted MRCOOL® dealer. Enjoy fast nationwide shipping, authentic Olympus products, and expert HVAC support.


    SKU: CASSETTE18HP-230C-P-O
    Series: Olympus – Best Tier
    Type: Ductless Mini Split Recessed 4-Way Ceiling Cassette with Panel
    BTU: 18,000 (1.5 Ton)
    Coverage: Up to 800 sq. ft.
    Refrigerant: R-454B
    Warranty: Lifetime (Limited) / 7 Year Compressor / 5 Year Parts
    Availability: Ships Nationwide from MRCOOLDIYDirect.com

    Popular keywords: MRCOOL Olympus 18K ceiling cassette, 1.5 ton recessed mini split, CASSETTE18HP-230C-P-O, MRCOOL 4-way ceiling cassette, quiet 44 dB mini split, R-454B refrigerant, professional installation MRCOOL, nationwide shipping MRCOOL dealer.

    Product Specifications
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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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