MRCOOL® 9k DIY 5th Generation Mini-Split Condenser 115v
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Warranty Protection
Trusted Returns Policy
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.
What’s Included:
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MRCOOL® 9K DIY® 5th Gen Mini-Split Condenser (115V)
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25ft DIYPro™ Communication Cable
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Installation Accessories
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MRCOOL® Warranty Documents
Specifications
Specifications at a Glance
| Attribute | Details |
|---|---|
| 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 |
Room Size & BTU Coverage Guide
Choosing the right BTU (British Thermal Unit) output ensures your space stays consistently comfortable all year round.
| BTU Rating | Ideal Room Size |
|---|---|
| 9,000 BTU | 250 – 400 sq. ft. |
| 12,000 BTU | 400 – 600 sq. ft. |
| 18,000 BTU | 600 – 1,000 sq. ft. |
| 24,000 BTU | 1,000 – 1,300 sq. ft. |
| 36,000 BTU | 1,300 – 1,800 sq. ft. |
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.
Installation
Installation & Manuals
Shipping & Returns
Shipping Policy
At Cool Heat Direct, we offer free curbside delivery on all MRCOOL product orders via FedEx Ground, FedEx Freight, or trusted carriers depending on order size.
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Deliveries are made to the curbside — please arrange assistance for heavy or large items, as drivers do not carry items indoors or upstairs.
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Tracking details will be sent within 3–5 business days after placing your order.
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Freight shipments are scheduled directly by the carrier using the contact information you provide at checkout.
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Please inspect your shipment upon delivery and report any visible damage on the delivery receipt.
Return Policy
We want you to love your purchase from Cool Heat Direct. If you need to return an item:
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Contact us within 30 days of delivery.
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Items must be unused, uninstalled, and in their original packaging.
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A 35% restocking fee applies to all approved returns.
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Accessories such as line sets, wall mounts, and couplers are non-returnable.
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Return shipping is the customer’s responsibility unless the item is damaged or defective on arrival.
To start a return, please email us at support@coolheatdirect.com with your order number and reason for return.
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