MRCOOL Olympus 4th Gen 18,000 BTU R-454B Wall Mount Air Handler 208/230V O-18-HP-WMAH-230C-O
Questions? Call Us Today
Call Us on (888)-897-6153
Enjoy peace of mind and reliable comfort with the MRCOOL® Olympus 4th Gen 18K Wall Mount Air Handler, designed to efficiently heat and cool areas up to 800 square feet—making it an ideal choice for large rooms, offices, garages, and more.
Control your comfort from anywhere with the MRCOOL® Smart HVAC app, which allows Wi-Fi connectivity for remote access via your smartphone or tablet. The unit also includes a wireless remote control, giving you flexible options to manage your indoor climate.
Engineered for energy efficiency, this system features a SEER2 rating of 23.5, EER2 of 12.7, and HSPF2-4 of 10.8, helping you lower utility costs while staying comfortable year-round. Multiple fan speed settings and whisper-quiet operation deliver powerful performance with minimal noise.
Now using R-454B refrigerant, a more eco-friendly choice, this unit supports environmentally conscious living without sacrificing performance. Voice control compatibility with Amazon Alexa and Google Assistant gives you personalized comfort at your fingertips.
Backed by a 7-year compressor warranty and 5-year parts warranty, the MRCOOL® Olympus 4th Gen 18K Wall Mount Air Handler offers dependable performance, smart technology, and lasting comfort throughout the seasons.
Technical Specifications
| Tonnage | 1.5 Ton |
| Voltage | 208/230 V |
| Phase | 1 |
| Frequency | 60 Hz |
| Max Fuse/Breaker | 15 A |
| Min Circuit Ampacity | 3 A |
| Refrigerant Type | R-454B |
| Max Coverage Area | Up to 800 sq ft |
| Liquid Line Size | 1/4" |
| Suction Line Size | 1/2" |
| Wi-Fi Compatible | Yes |
| App Compatible | Yes |
| Net Dimensions (D×H×W) | 9.69" × 12.64" × 40.31" |
| Net Weight | 27.34 lbs |
| Gross Dimensions (D×H×W) | 12.8" × 15.75" × 43.11" |
| Gross Weight | 36.6 lbs |
Certifications
- UL Listed
- CSA Listed
- ETL Listed
Warranty
- 5-Year Parts Warranty
- 7-Year Compressor Warranty
Product Documentation
- MRCOOL Olympus 4th Gen 18K Wall Mount Air Handler Installation Manual (PDF)
- MRCOOL Olympus 4th Gen 18K Wall Mount Air Handler Warranty Document (PDF)
- MRCOOL Olympus 4th Gen 18K Wall Mount Air Handler Brochure (PDF)
- MRCOOL Olympus 4th Gen 18K Wall Mount Air Handler Service Manual (PDF)
- MRCOOL Olympus 4th Gen 18K Wall Mount Air Handler Performance Specification Sheet (PDF)
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.