MRCOOL Olympus 18,000 BTU 1.5 Ton Ductless Mini Split Wall Mounted Air Handler 230V/60Hz, O-18-HP-WMAH-230C-O

Brand: MRCOOL
Model: O-18-HP-WMAH-230C-O
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Regular price $526.00
Sale price $526.00 Regular price $578.60
You save $52.60
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Mount type: Wall
BTU: 18,000
18,000
9,000
12,000
18,000
24,000
In stock - Ready to Ship
Free Curbside Delivery
Curbside shipping means your order will be delivered to the curb or driveway outside your home. The driver will not bring it inside or set it up. Please arrange for help if needed!
Estimated Arrival: Nov 01 to Nov 07
Regular price $526.00
Sale price $526.00 Regular price $578.60

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DESCRIPTION

The MRCOOL® OLYMPUS ESTAR® 18k Series air handler provides reliable heating and cooling for spaces up to 750 square feet, making it ideal for bedrooms, offices, or garages. Compact and easy to install, it offers smart Wi-Fi control through the MRCOOL® Smart HVAC app, plus a handheld remote for quick adjustments. With high-efficiency ratings—SEER2 21.4, EER2 12.5, and HSPF2-4 11.0—you can enjoy year-round comfort while saving on energy costs. Operating quietly at just 49.5 dB and using eco-friendly R-454B refrigerant, this unit combines powerful performance with modern convenience. It’s also compatible with Amazon Alexa and Google Assistant and backed by an industry-leading warranty for long-lasting reliability.

  • Compact Design: Perfect for smaller spaces up to 750 sq. ft., offering efficient comfort for bedrooms, offices, and garages.
  • Smart Control: Wi-Fi compatible with the MRCOOL® Smart HVAC app for remote access from your smartphone or tablet.
  • Voice Compatibility: Works seamlessly with Amazon Alexa and Google Assistant for hands-free operation.
  • Energy Efficient: Delivers SEER2 21.4, EER2 12.5, and HSPF2-4 11.0 performance ratings for lower utility costs.
  • Quiet Operation: Operates at a low 49.5 dB noise level, maintaining comfort without distraction.
  • Eco-Friendly Refrigerant: Uses R-454B, a next-generation refrigerant with reduced environmental impact.
  • Flexible Control Options: Includes a remote control for convenient manual operation.
  • Reliable Warranty: Covered by a 5-year parts warranty.

SPECIFICATIONS & DIMENSIONS

  • DIMENSIONS
  • Dimensions: 40.31" W x 9.69" D x 12.64" H
  • Mount Type: Wall
  • Weight: 27.34 lbs
  • CAPACITY & PERFORMANCE
  • Tonnage: 1.5 Ton
  • Capacity: 18,000 BTU
  • Coverage Area: 501 to 750 sq ft.
  • ELECTRICAL REQUIREMENTS
  • Voltage: 208-230V
  • Phase: 1
  • Cycle: 60 Hz
  • Max Fuse Breaker: 15A
  • Min Circuit Ampacity: 3A
  • REFRIGERANT & PIPING
  • Refrigerant Type: R-454B
  • Liquid Line Size: 1/4"
  • Suction Line Size: 1/2"
  • FEATURES
  • Fan Only Option: Yes
  • Quiet Mode: Yes
  • Auto Cool: Yes
  • Wifi Compatibility: Yes
  • App Compatibility: Yes
  • Works with IOS: Yes
  • Works with Android: Yes
  • Remote Control Included: Yes
  • CERTIFICATION & WARRANTY
  • Certifications: UL Listed, ETL Listed, AHRI Certified
  • Warranty: 5 Year Parts

INSTALLATION & GUIDES

SHIPPING POLICY

Free Curbside Delivery
MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.

Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.

See our full Shipping Policy here.

RETURN POLICY

MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.

Restocking Fee
Please note, a 35% restocking fee will be applied to all approved returns.

Non-Returnable Items
Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.

See our full Return Policy here.