MRCOOL® 24k DIY 5th Generation Mini-split Air Handler 230v
MODEL: DIY-24-HP-WMAH-230D25-O
Product Description
Heavy-Duty, High-Capacity Comfort for Spaces up to 1,000 sq. ft.
The MRCOOL® 24k BTU DIY® 5th Generation Mini-Split Air Handler delivers serious heating and cooling power with whisper-quiet, energy-efficient operation — perfect for large open-concept living rooms, basements, bonus rooms, workshops, or oversized master bedrooms up to 1,000 sq. ft.
Designed for fully DIY-friendly installation, this air handler pairs easily with your MRCOOL® DIY® 5th Gen Multi-Zone Condenser via a pre-charged 25-foot Quick Connect® line set with eco-friendly R-454B refrigerant. No vacuum pump, no gauges, no expensive HVAC installer.
Control your comfort with ease using the SmartHVAC® app, Amazon Alexa, Google Assistant, and the included wireless remote. Thanks to Follow Me® technology, your room stays perfectly adjusted to your exact location — delivering balanced, room-to-room temperature precision.
Built to last, this unit features a Gold Fin® corrosion-resistant coating and comes backed by one of the best warranties in the industry, ensuring long-term, reliable performance through every season.
Why You’ll Love It
✅ Perfect for Larger Spaces — Ideal for oversized bedrooms, open-plan living areas, finished basements, and large bonus rooms up to 1,000 sq. ft.
✅ Simple DIY Installation — Pre-charged Quick Connect® lines and included 25ft DIYPro™ Communication Cable mean no vacuuming, gauges, or HVAC tech needed.
✅ Smart-Home Compatible — Wi-Fi enabled for full control via the SmartHVAC® app, Alexa, or Google Assistant.
✅ Follow Me® Comfort Technology — Adjusts system output based on your exact location for personalized comfort.
✅ Ultra-Quiet Operation — Runs between 27 and 45 dBA for peaceful, unobtrusive performance.
✅ Gold Fin® Protection — Corrosion-resistant coating ensures long-lasting durability.
✅ Year-Round Performance — Cools down to 5°F and heats up to 86°F for dependable, all-season comfort.
✅ Industry-Leading Warranty — Limited Lifetime Compressor Warranty (with registration), 7-Year Compressor, and 5-Year Parts Warranty.
What’s Included:
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MRCOOL® 24K DIY® 5th Gen Mini-Split Air Handler
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25ft DIYPro™ Communication Cable
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Wireless Remote Control
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Installation Accessories
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MRCOOL® Warranty
Specifications at a Glance
| Attribute | Details |
|---|---|
| BTU Capacity | 24,000 BTU |
| Voltage | 208-230V |
| Coverage Area | 750 – 1,000 sq. ft. |
| Sound Rating (dBA) | 27 – 45 |
| Wi-Fi Compatibility | Yes (SmartHVAC App, Alexa, Google Assistant) |
| Line Set Compatibility | MRCOOL® Quick Connect® |
| Cooling Operating Range | 5°F – 122°F |
| Heating Operating Range | 5°F – 86°F |
| Air Filter | Washable, reusable |
| Warranty | Limited Lifetime Compressor (registered), 7-Year Compressor, 5-Year Parts |
Installation & Guides
Room Size & BTU Coverage Guide
Choosing the right BTU (British Thermal Unit) output ensures your space stays consistently comfortable year-round. Use this quick reference chart to match your room size with the recommended cooling and heating capacity for your MRCOOL® DIY® 5th Gen Mini-Split Air Handler.
| BTU Rating | Ideal Room Size (Approx.) |
|---|---|
| 24,000 | 750 – 1,000 sq. ft. — ideal for large open-concept living areas, basements, or oversized bedrooms |
Important:
Always consider ceiling height, insulation, sun exposure, number of windows, climate, and heat-generating appliances when choosing the right system.
Still unsure which size is right?
Our MRCOOL-certified experts are happy to help — message us anytime!
What You Need for a Complete System
For full heating and cooling performance, pair this indoor air handler with:
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MRCOOL® DIY® 5th Gen Multi-Zone Condenser — Powers your climate control system by transferring heat outdoors for reliable heating and cooling.
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MRCOOL® Quick Connect® Pre-Charged Line Set — Connects the air handler to the condenser with pre-charged refrigerant for clean, easy installation.
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DIYPro™ Communication Cable (25ft included) — Provides secure, efficient communication between the air handler and condenser.
Optional Accessories:
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MRCOOL® Wall Mount Bracket
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Additional Quick Connect® Line Sets (for extended distances)
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Coupler Kits (if line set extension is needed)
Important:
This air handler is not a stand-alone unit. It requires connection to a compatible MRCOOL® DIY® 5th Generation Multi-Zone Condenser for full operation.
It is not compatible with 3rd or 4th Generation MRCOOL® systems.
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.
👉 Click here for our full Shipping Policy
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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