MRCOOL
MRCOOL Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Heat Pump Complete System (Condenser + Wall Mount Air Handler) - 230V/60Hz
SEER2 23.5 | R-410A | 208-230V
- 18000 BTU cooling capacity
- Up to 23.5 SEER2 rated efficiency
- ROTARY compressor
- Uses R-410A refrigerant
Key Specifications
Product Overview
A complete single-zone Olympus ENERGY STAR heat pump system under one part number, O-ES-18-HP-230B. One order covers the outdoor condenser and the wall-mount indoor head; there is no second unit to buy.
What ships
- Outdoor condenser — O-ES-18-HP-C-230B
- Wall-mount indoor air handler — the head MRCOOL certifies with this condenser (O-18-HP-WMAH-230B)
- A 25 ft line set, per MRCOOL’s own description of this part number.
Performance
- Cooling capacity: 18,000 BTU (1.5 Ton)
- Heating capacity: 19,000 BTU
- SEER2 23.5 · HSPF2 10.8 (Region IV)
- AHRI certified reference 208552815
- R-410A refrigerant · 208–230V, single phase, 60 Hz
- Maximum overcurrent protection: 30 A
- Line sizes: 1/4" liquid, 1/2" suction
Buying the halves separately
If you only need one side of the system, order the part for it rather than this one: O-ES-18-HP-C-230B is the condenser on its own, and O-18-HP-WMAH-230B is the wall-mount head on its own. This part number is the pair and a 25 ft line set together.
Professional installation required. Refrigerant line connections must be made by a licensed technician.
Technical Specifications
Performance
| System Type | Mini-Split |
|---|---|
| Capacity | 18000 BTU |
| Compressor / Stages | ROTARY |
| SEER2 | 23.5 |
| EER2 | 12.5 |
| HSPF2 | 10.8 |
| Sound Level | 43 dBA |
Electrical & Fuel
| Voltage | 208-230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-410A |
| Connection Size | Liquid 1/4" / Suction 1/2" |
Shipping & Delivery
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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Still deciding on the right equipment?
Our HVAC specialists can help you confirm sizing and compatibility before you buy.