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MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Air Handler 230V, DIY-18-HP-WMAH-230D25-O
Regular Price
$940.00
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MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Air Handler – 230V
Model: DIY-18-HP-WMAH-230D25-O
Ideal Coverage: Up to 750 sq. ft. • Power: 230V • Refrigerant: R-454B
The MRCOOL® DIY 5th Generation 18K BTU Multi-Zone Wall Mount Air Handler offers year-round comfort for larger areas such as great rooms, bonus rooms, garages, and more. Engineered to pair with MRCOOL® DIY® multi-zone condensers, this indoor unit ensures efficient heating and cooling, modern controls, and simple DIY installation.
🔥 Key Features
- DIY Installation: No vacuuming or special tools needed. Perfect for homeowners and pros alike.
- QuickConnect® Line Set: Pre-charged with R-454B refrigerant for fast, mess-free hookup
- Green Refrigerant: Lower Global Warming Potential (GWP) than R-410A for reduced environmental impact
- DIYPRO® Cable: Outdoor-rated armored cable for superior durability without electrical conduit
- Smart Wireless Control: Includes remote and integrates with the SmartHVAC App, Amazon Alexa, and Google Assistant
- Follow Me Technology: Maintains your target temperature based on where the remote is located
- Dry Mode: Reduces humidity and improves indoor air quality
📏 Room Size Coverage
This unit is ideal for larger rooms up to 750 sq. ft., including open-concept living areas or oversized bedrooms.
🛡️ Industry-Leading Warranty
- Compressor: 7-Year Warranty
- Parts: 5-Year Warranty
- Lifetime Replacement: Available through MRCOOL® Care Program Enrollment
⚠️ Compatibility Notice
This air handler is pre-charged with R-454B refrigerant and is not compatible with older R-410A systems. Always pair with MRCOOL® 5th Gen R-454B multi-zone condensers and components for proper function.
Buy from MRCOOL DIY Direct – America’s most trusted source for DIY HVAC systems and parts.
Specifications & Dimensions
| Specification | Details |
|---|---|
| Model Number | DIY-18-HP-WMAH-230D25-O |
| Cooling Capacity | 18,000 BTU/h |
| Heating Capacity | 18,000 BTU/h |
| Recommended Coverage Area | Up to 750 sq. ft. |
| Power Supply | 208–230V, 60Hz, 1 Phase |
| Minimum Circuit Ampacity | 5 A (est.) |
| Maximum Fuse | 15 A (est.) |
| Refrigerant Type | R-454B |
| Line Set Size | 1/4" Liquid x 1/2" Gas |
| Communication Cable Included | Yes, 4-conductor |
| Wireless Control | Remote, SmartHVAC App, Alexa, Google Assistant |
| Remote Sensor (Follow Me) | Yes |
| Dry Mode Function | Yes |
| Mounting Type | Wall-Mounted |
| Dimensions (WxDxH) | Approx. 39" x 8.5" x 12.5" |
| Net Weight | Approx. 26 – 30 lbs |
| ETL Listing Number | 5031495 |
FAQs About Our HVAC Products
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.
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