What's in the box
- MRCOOL® 9K DIY® 5th Gen Mini-Split Condenser (115V)
- 25ft DIYPro™ Communication Cable
- Installation Accessories
- MRCOOL® Warranty Documents
Manuals & documents
MODEL: DIY-09-HP-C-115D25-O
Effortless, Ultra-Efficient Heating & Cooling for Spaces up to 350 sq. ft.
Take total control of your indoor comfort with the MRCOOL® 9k BTU DIY® 5th Generation Mini-Split Condenser. Specifically designed for easy, tool-free, and no-vacuum installation, this compact but powerful unit is perfect for bedrooms, home offices, dens, or workshops up to 350 sq. ft..
Paired with the pre-charged 25-foot Quick Connect® line set filled with eco-friendly R-454B refrigerant, this condenser makes setup fast, safe, and simple — no professional HVAC service required. The included DIYPro™ Communication Cable eliminates the need for electrical conduit, offering extra durability against outdoor elements, animals, and yardwork mishaps.
Connect and control your system from anywhere with the SmartHVAC® app, Amazon Alexa, or Google Assistant. The built-in Auto Restart function restores your previous settings after a power outage, while multiple operating modes and energy-saving features keep your space perfectly balanced year-round.
Protected by a Gold Fin® anti-corrosion coating, this condenser is built to withstand harsh coastal and humid climates. It’s backed by one of the strongest warranties in the business for total peace of mind.
Why You’ll Love It
✅ Pererfect for Smaller Spaces — Ideal for bedrooms, offices, or small apartments up to 350 sq. ft.
✅ DIY-Friendly Installation — Quick Connect® pre-charged line sets and DIYPro™ cable simplify setup.
✅ Smart-Home Ready — Wi-Fi enabled and compatible with the SmartHVAC® app, Alexa, and Google Assistant.
✅ Auto Restart Function — Automatically restores previous settings after a power outage.
✅ Anti-Mildew Protection — Helps reduce moisture buildup and prevent mold inside your air handler.
✅ Gold Fin® Condenser Protection — Resists corrosion in coastal and high-humidity areas.
✅Ultra-Quiet Operation — Runs as low as 54 dBA outdoors for a peaceful environment.
✅ Industry-Leading Warranty — Limited Lifetime Compressor Warranty (with registration), 7-Year Compressor, 5-Year Parts.
Important:
Always consider additional factors such as ceiling height, insulation quality, sun exposure, number of windows, climate, and the number of heat-producing appliances in your space when choosing the right system.
What You Need for a Complete System
To achieve full heating and cooling performance, pair this condenser with:
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MRCOOL® DIY® 5th Gen Air Handler (115V Compatible)
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MRCOOL® Quick Connect® Pre-Charged Line Set (25ft included)
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DIYPro™ Communication Cable (25ft included)
Optional Accessories:
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MRCOOL® Wall Mount Bracket
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Additional Quick Connect® Line Sets
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Coupler Kits for line set extensions
Note: This condenser is compatible exclusively with MRCOOL® DIY® 5th Gen Single-Zone Air Handlers (115V). Not compatible with 3rd or 4th Gen systems.
| Voltage | 115V |
| Phase | 1 |
| Cycle | 60 Hz |
| Color | White |
| Max Coverage Area | Up to 350 sq. ft. |
| Cooling Capacity (BTU) | 9,000 |
| Heating Capacity (BTU) | 10,000 |
| SEER2 | 23.6 |
| EER2 | 14 |
| HSPF2-4 | 11.5 |
| HSPF2-5 | 8.6 |
| Decibel Rating (Outdoor) | 54 dBA |
| Inverter | DC |
| Refrigerant Type | R-454B |
| Refrigerant Volume (oz) | 30.34 |
| Max Line Set Length (ft) | 82 |
| Compressor Motor Type | Rotary |
| Wi-Fi Enabled | Yes |
| App Compatibility | iOS & Android |
| UL/ETL Listed | Yes |
| AHRI Certified | Yes |
| Warranty | Lifetime Limited*, 7-Year Compressor, 5-Year Parts |
| Net Dimensions (WxHxD) | 30.12" x 21.85" x 11.93" |
| Gross Dimensions (WxHxD) | 36.22" x 27.56" x 16.54" |
| Net Weight | 83.11 lbs |
| Gross Weight | 65.48 lbs |
| Contains Electronics / Chemicals / Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
Questions, answered
Everything homeowners ask before buying a MRCOOL® system.
Installation
What installation requirements apply to this product?
Installation requirements vary by product type. Selected complete MRCOOL® DIY systems are designed for homeowner installation when fitted in line with the manufacturer’s instructions, local codes and permit requirements.
Central HVAC systems, including Universal®, VersaPro®, Central Ducted Hyper Heat and packaged systems, are intended for professional installation by a qualified HVAC contractor. Licensed electrical work may also be required.
Components, thermostats, controls, line sets and accessories should be installed according to their product documentation and compatibility requirements. Always review the product page, manufacturer guidance and warranty conditions before installation.
Will I need any additional parts, tools or professional services?
Additional requirements vary by product and installation. Tools, electrical materials, mounting hardware, connecting components or other installation supplies may be required unless specifically stated as included.
Review the product description, specifications, installation information and What’s Included section, where available, before ordering.
Where can I find product documents or installation instructions?
Available specifications, installation instructions, owner’s manuals and manufacturer documents are provided on the product page where applicable.
Some simple accessories may not have a separate installation manual. Contact our team if you need help locating documentation for a particular product or model.
Sizing & Compatibility
How do I confirm this product is compatible with my equipment?
Review the product type, model number, dimensions, voltage, capacity, refrigerant type, connection sizes and compatibility information shown on the product page, where applicable.
Components, thermostats, controls and accessories must be matched to compatible equipment. Contact our team before ordering if you are uncertain about compatibility.
What should I check before ordering?
Confirm the product name and model number, together with any relevant dimensions, voltage, capacity, refrigerant type, connections and installation requirements.
For replacement components and accessories, compare the product specifications with your existing equipment and the relevant manufacturer documentation before placing your order.
What is included with this product?
The supplied items are listed in the What’s Included section or product description, where applicable. Only the products, components and accessories specifically stated are included.
Electrical materials, mounting equipment, connecting components or other installation supplies may need to be purchased separately unless expressly stated otherwise.
Warranty & Support
What warranty coverage applies to this product?
Warranty coverage varies by product and model. Eligible MRCOOL® products are covered according to the manufacturer’s warranty terms, registration requirements and installation conditions.
Accessories and individual components may have different coverage. Cool Heat Direct can provide available warranty documentation and general guidance, while warranty eligibility and claim decisions are determined by the manufacturer.
How can I get help before ordering?
Email support@coolheatdirect.com with the product name or model number and details about your project or existing equipment.
For compatibility questions, include the model numbers of any products you intend to connect, control, replace or use together.
Support hours: Monday–Friday, 9 AM–6 PM ET.
Shipping & Returns
How will my order be shipped?
Free standard shipping is available on eligible orders to the Lower 48 states and Washington, D.C.
Orders are generally processed within 3–5 business days, followed by approximately 5–12 business days in transit. Delivery timing varies by product availability, destination and carrier scheduling.
Smaller products may ship by parcel carrier. Larger equipment may be delivered curbside by freight carrier. The carrier may contact you to arrange a delivery appointment.
Can I return this product?
Return requests may be submitted within 30 calendar days of delivery. Products must be new, unused and uninstalled and, where applicable, unpowered. They must also be complete and in their original manufacturer packaging. Prior written authorization is required.
For approved change-of-mind returns, incorrect sizing or customer ordering errors, the customer is responsible for return freight and a 15% restocking fee applies.
Verified damaged, defective, incorrect or incomplete orders are handled separately under our full policy.
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