Advantage 5th Gen 18k BTU 230V Air Handler
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 A-18-HP-WMAH-230D-O
Customize it — compatible add-ons only
Copper pair in 1/4″ × 1/2″ — the diameter this unit's spec sheet calls for. Installed and charged by your HVAC tech.
Clean channel for the lines running down your exterior wall.
Universally compatible tools and care items — maintenance kit, coil cleaner, install tools.
Sizing Help
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Resources
Brochures & Manuals
Description
Advantage 5th Gen 18k BTU 230V Air Handler
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
208-230V
Voltage
36dBA
Noise Level
Advantage 5th Gen 18k BTU 230V Air Handler — 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). Minimum circuit ampacity is 3A with a maximum overcurrent protection of 15A. Wire the outdoor unit with 14 AWG copper on a dedicated 15A double-pole breaker (or single-pole at 120V), with a disconnect within sight of the condenser per NEC 440.14.
Install Difficulty — Professional Install
This is a professionally-installed condenser that requires a licensed HVAC technician with EPA 608 certification. The tech will pull a vacuum on the line set to 500 microns, pressure-test with nitrogen, release the factory charge, and commission per MrCool's startup procedure. Budget 1 full day for install on a single-zone system. The system supports line set lengths up to 98.4ft; longer runs are available as accessory kits. Plan the shortest practical route — every 10ft of line set adds roughly 2% capacity loss.
Sound Level & Comfort Features
Operating sound level ranges from 19 dB(A) on low to 50.5 dB(A) on high — the low end is whisper-quiet, below a normal conversation (60 dB) and comparable to a library reading room. The indoor blower offers 5 fan speeds plus auto mode, letting you trade airflow for quiet operation in bedrooms while running louder in living areas.
Warranty & Certifications
Manufacturer warranty: 1 Year on parts, 2 Years on the compressor. AHRI certified and UL/ETL listed for North American electrical safety — required for most utility rebate and tax credit programs.
What's in the Box & Compatibility
Ships as a Mini-Split Air Handler with remote control included.
Product Details
Discover dependable comfort with the 5th Generation MRCOOL® 18k BTU Advantage Air Handler, now featuring R454B refrigerant for improved energy efficiency and a lower Global Warming Potential (GWP). Ideal for larger spaces, this powerful air handler combines high performance with quiet operation, delivering year-round heating and cooling without the need for ductwork—making it an affordable, efficient choice for homeowners. The sleek Advantage air handler offers seamless temperature control. Thanks to its built-in Wi-Fi capability, you can manage the unitremotely from your smartphone, allowing you to customize comfort settings and even schedule temperature adjustments during the night for extra energy savings. Engineered with ease and convenience in mind, the Advantage Series is backed by an extensive warranty once the system is registered: 1 year on parts, 2 years on the compressor, and 1 year on the remote control. You can even enjoy a Limited Lifetime warranty if you enroll in the MRCOOL® Care Program. Say goodbye to comfort concerns—this advanced system is designed to keep your home’s temperature just right while lowering energy use. With the MRCOOL® Advantage, you get reliable, eco-conscious climate control tailored to your home’s unique needs, combining performance, durability, and user-friendly technology in one efficient solution. Experience ultimate comfort without the worry with the MRCOOL® Advantage Air Handler!
Specifications
| Voltage | 208-230 V |
| Noise Level | 36 dBA |
| Max Line Set | 98.4 ft |
| Tonnage | 1.5 Ton |
| Airflow | 429.7 / 388.5 / 259.0 / 217.8 / / CFM |
| Phase | 1 |
| Liquid Line Size | 1/4 |
| Suction Line Size | 1/2 |
Features
- Gold Fin® condenser: corrosion resistant - live on the coast? Don't worry, our condenser is built to resist long term corrosion
- Includes features such as timer mode, refrigerant leakage detection, and more
- 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.
- R-454B refrigerant
- AHRI certified
- NEEP ccASHP Listed
- CEE Tier1 - North
Frequently Asked Questions
Everything you need to know about this product
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Ships Nationwide — Shop by State
We deliver the Advantage 5th Gen 18k BTU 230V Air Handler to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.