MRCOOL® Olympus E Star® 4th Gen 9,000 BTU (3/4 Ton) Ductless Mini Split Heat Pump — O-ES-09-HP-C-230C-O1 + O-09-HP-WMAH-230C-O
Overview
The MRCOOL® Olympus E Star® 4th Gen 9k is a high-efficiency single-zone ductless mini split heat pump built for professional HVAC installation. It delivers quiet, precise comfort with inverter-driven performance and supports WiFi control via the SmartHVAC app, plus voice control with Amazon Alexa and Google Assistant. The system uses R-454B refrigerant and includes corrosion-resistant Gold Fin® protection on the condenser for improved durability—especially in coastal environments.
Highlights
- Ultra-high efficiency: Up to 27.4 SEER2 with strong heating performance (HSPF2-4 12.5).
- Cold-climate capable: Operates down to -22°F for both heating and cooling (per provided ranges).
- Gold Fin® condenser: Enhanced corrosion resistance for harsh environments.
- Smart control included: WiFi module + SmartHVAC app, plus Alexa/Google Assistant support.
- Comfort features: Sleep mode, louver position memory, and auto-restart.
- Installer-friendly design: Compact outdoor unit and durable, enclosed condenser fan motor.
151–350 sq ft*
9,000 / 12,000 BTU
Up to 27.4 SEER2
Indoor 20.5–38 dB(A)
*Coverage varies by climate, insulation, and load. Some provided notes reference “up to 400 sq ft” for this size.
What’s Included
- Outdoor Condenser: O-ES-09-HP-C-230C-O1
- Wall-Mounted Air Handler: O-09-HP-WMAH-230C-O
- SmartHVAC WiFi Control Module
- Remote Control
- Installation / User documentation (see Documents & Downloads)
Indoor Specs
Model: O-09-HP-WMAH-230C-O (Wall-Mounted Air Handler)
| System Type | Single-Zone Ductless Mini Split |
| Zone Capacity | 1 |
| Cooling / Heating Capacity | 9,000 BTU / 12,000 BTU |
| Coverage Area | 151–350 sq ft (see note in Highlights) |
| Indoor Noise (Hi/Mi/Lo) | 38 / 33 / 20.5 dB(A) |
| WiFi / App | Yes / Yes (SmartHVAC) |
| Voice Control | Amazon Alexa / Google Assistant |
| Electrical | 208–230V • 1-Phase • 60 Hz |
| Dimensions (W×D×H) | 33.74" × 9.09" × 11.81" |
| Weight | 23.37 lb |
Outdoor Specs
Model: O-ES-09-HP-C-230C-O1 (Single-Zone Condenser)
| System Type | Single-Zone Ductless Mini Split Heat Pump |
| Cooling / Heating Capacity | 9,000 BTU / 12,000 BTU |
| Outdoor Temp Range (Cooling) | -22°F to 122°F |
| Outdoor Temp Range (Heating) | -22°F to 75°F |
| SEER2 / EER2 | Up to 27.4 / 15.4 |
| HSPF2-4 / HSPF2-5 | 12.5 / 9.5 |
| Outdoor Noise | 56 dB(A) |
| Electrical | 208–230V • 1-Phase • 60 Hz |
| MCA / Max Breaker | 15A / 15A |
| Refrigerant | R-454B • 35.27 oz factory charge |
| Line Set | Flared fittings • Liquid 1/4" • Suction 3/8" |
| Max Line Set Length | 82 ft |
| Dimensions (W×D×H) | 31.69" × 12.99" × 21.81" |
| Weight | 72.75 lb |
Documents & Downloads
Important
- Professional installation required: Designed for installation by a licensed HVAC professional.
- Vacuum required: A licensed tech must pull a vacuum on the line set prior to commissioning.
- Refrigerant charge & line length: Factory charge support, longer runs might require additional refrigerant.
- Coastal durability: Gold Fin® condenser helps resist corrosion.
FAQs
Does this system require professional installation?
Yes. This Olympus E Star® 4th Gen model is intended for installation by a licensed HVAC professional.
Is WiFi control included?
Yes. A SmartHVAC WiFi control module is included, and the system supports app control plus Amazon Alexa and Google Assistant.
How cold can it run?
Provided operating ranges list outdoor operation down to -22°F for both cooling and heating.
What electrical circuit is required?
208–230V, 1-phase, 60 Hz with a 15A max fuse/breaker and 15A minimum circuit ampacity.
What warranty comes with it?
5-year parts and 7-year compressor warranty (with an option to extend to limited lifetime upon registration, as provided).
