MRCOOL® 9k DIY 5th Generation Mini-Split Air Handler 230v
Component — Not a Complete System
This is the indoor unit only. To run, you also need a matching outdoor condenser and a refrigerant line set. Looking for the complete system instead? Browse complete systems.
SKU DIY-09-HP-WMAH-230D25-O
With Incentives
Save up to $3195th Generation system — meets CEE Tier 2 efficiency. Find your state's rebate
Customize it — compatible add-ons only
Diameter matched to this unit per MrCool's spec sheet.
Clean channel for the lines running down your exterior wall.
Universally compatible tools and care items — maintenance kit, coil cleaner, install tools.
MrCool DIY factory warranty — register after install to activate the full coverage tiers.
Sizing Help
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Proper sizing prevents short-cycling, high bills, and premature failure. Our sizing tool takes 60 seconds.
Resources
Brochures & Manuals
Description
MRCOOL® 9k DIY 5th Generation Mini-Split Air Handler 230v
What's in the Box
Here's what you'll receive with your order
Wall-Mount Air Handler
Indoor ductless mini-split unit
Wireless Remote Control
Handheld remote with temperature control
Mounting Plate & Hardware
Wall mounting bracket and screws
Owner Manual
Installation and operation guide
Key Specifications
400sq ft
Coverage Area
208/230V
Voltage
MRCOOL® 9k DIY 5th Generation Mini-Split Air Handler 230v — Model Details
What this specific model is sized for, how it installs, how it performs, and what it costs to run.
Power & Electrical Requirements
Power requirement: 208/230V 1-phase 60Hz (standard US residential 240V service).
Install Difficulty — DIY-Friendly
This DIY 5th gen Multi-Zone Mini-splits system ships with a pre-charged Quick Connect line set — no HVAC license, no vacuum pump, no refrigerant gauges. The pre-charged fittings use a hand-tightened mechanical seal that a homeowner completes in 15 minutes per connection. Typical install time from unboxing to first cool air is 4–8 hours for a single-head system.
Warranty & Certifications
Manufacturer warranty: 5 on parts, 7 on the compressor. AHRI certified and UL/ETL listed for North American electrical safety — required for most utility rebate and tax credit programs.
Product Details
The 5th Generation MRCOOL® DIY® 9K BTU 22.5 SEER Ductless Mini-Split Heat Pump is a highly efficient and powerful solution for heating and cooling areas up to 400 sq. ft. Designed specifically for easy DIY installation, this system removes the need for specialized tools or professional help, allowing for a quick, hassle-free, and budget-friendly setup. One of its most convenient features is the pre-charged 25-foot DIY® QuickConnect® line set, which comes filled with R-454B refrigerant. This line set is sold separately. This eliminates the need for vacuuming, reducing both installation time and labor costs. Additionally, the DIYPRO® cable replaces the need for electrical conduit, enhancing durability and protection against outdoor elements and wildlife. With multiple control options, adjusting your system is effortless. You can operate it using the wireless remote, the SmartHVAC app for Apple and Android devices, or voice commands via Amazon Alexa and Google Assistant. The Follow Me function enhances comfort by adjusting airflow based on the remote’s location, ensuring even temperature distribution. Dry Mode also helps regulate humidity, keeping indoor conditions comfortable. Built for long-term durability, the Gold Fin® Condenser offers superior corrosion resistance, making it ideal for coastal environments. Supported by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—this MRCOOL® DIY® system delivers reliable, year-round climate control with innovative features and easy installation.
Specifications
| Voltage | 208/230 V |
| Coverage Area | 400 sqft sq ft |
| Phase | 1 |
Features
- Intertek listed 5031495
- Easy DIY installation
- Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
- Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
- The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
Frequently Asked Questions
Everything you need to know about this product
Can I install this myself without an HVAC license?
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Ships Nationwide — Shop by State
We deliver the MRCOOL® 9k DIY 5th Generation Mini-Split Air Handler 230v to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.