MRCOOL 4th Gen Olympus E Star 9,000 BTU Single Zone Mini Split with Ducted Air Handler and Heat Pump Condenser— O-ES-09-HP-C-230C-O1 + CASSETTE09HP-230C-P-O
Overview
The MRCOOL® Olympus E Star® 9k ceiling cassette system pairs a compact inverter-driven condenser with a flush-mount cassette indoor unit for clean aesthetics and dependable comfort in smaller spaces. The cassette is designed to blend into the ceiling while delivering quiet, multi-speed operation and downflow air distribution with oscillation. The system uses R-454B refrigerant.
Note: Some listings describe Wi-Fi/app + Alexa/Google control on the condenser platform, while the cassette indoor unit fields list Wi-Fi/app compatibility as “No.” If app/voice control is required, confirm the exact controller/module included for this pairing.
Highlights
- High efficiency: Up to 27.4 SEER2, up to 15.4 EER2, and 12.5 HSPF2-4.
- Flush ceiling design: Cassette mount keeps walls clear and delivers a clean, modern look.
- Quiet comfort: Indoor sound levels listed as low as 24 dB(A).
- 5 variable speeds: Multi-speed indoor fan with oscillation for better mixing and comfort.
- Eco-forward refrigerant: R-454B refrigerant with lower GWP than legacy options.
- Professional install where applicable: Designed for licensed installation to support performance and warranty requirements.
Up to 400 sq ft*
9,000 / 12,000 BTU
82 ft
Outdoor 56 dB(A)
*Coverage depends on climate, insulation, and room load. Outdoor sound is listed as 56 dB(A) in specs; some marketing text may show a slightly lower figure.
What’s Included
- Outdoor Condenser: O-ES-09-HP-C-230C-O1
- Ceiling Cassette (with panel): CASSETTE09HP-230C-P-O
- Remote control (batteries included)
- Installation and service documentation (see Documents & Downloads)
Indoor Specs
Model: CASSETTE09HP-230C-P-O (Ceiling Cassette Indoor Unit)
| Brand / Series | MRCOOL • Olympus Cassette |
| Type | Mini-Split (Indoor Unit) |
| Max Coverage | Up to 400 sq ft |
| Indoor Noise (multi-speed) | 42.5 / 40 / 37.5 / 26 / 24 dB(A) |
| Speeds / Oscillation | 5 (Variable) • Oscillation: Yes |
| Air Flow Direction | Downflow |
| Refrigerant | R-454B |
| Line Set Fittings | Flare • Liquid 1/4" • Suction 3/8" |
| Electrical | 208–230V • 1-Phase • 60 Hz • Max Breaker 15A • MCA 3A |
| Mount / Color | Ceiling • White |
| Filter | Reusable |
| Dimensions (W×D×H) | 22.44" × 22.44" × 9.65" |
| Weight | 35.27 lb (net) • 41.89 lb (gross) |
| Control Options | Remote included • Wi-Fi/App: No • iOS/Android: No |
| Aux Heat | Not included • Not available |
| Restrictions | Restricted states: GU, PR, VI • Proposition 65: Yes |
| Identifiers | UPC: 840255587945 • GTIN: 00840255587945 |
Outdoor Specs
Model: O-ES-09-HP-C-230C-O1 (Single-Zone Condenser)
| Brand / Series | MRCOOL • Olympus 4th Gen Single-Zone Condensers |
| Cooling / Heating Capacity | 9,000 BTU / 12,000 BTU |
| Efficiency | SEER2: Up to 27.4 • EER2: Up to 15.4 • HSPF2-4: 12.5 • HSPF2-5: 9.5 |
| Outdoor Noise | 56 dB(A) |
| Electrical | 208–230V • 1-Phase • 60 Hz • Max Breaker 15A • MCA 15A |
| Refrigerant | R-454B • 35.27 oz |
| Line Set | Flare • Liquid 1/4" • Suction 3/8" • Max length 82 ft |
| Inverter / Metering | DC inverter • Metering: EXV |
| Compressor | Rotary |
| Dimensions (W×D×H) | 31.69" × 12.99" × 21.81" |
| Weight | 72.75 lb (net) • 78.7 lb (gross) |
| Certifications | ENERGY STAR® • AHRI Certified • UL Listed • CSA Listed • ETL Listed |
| Restrictions | Restricted states: GU, PR, VI • Proposition 65: Yes |
| Identifiers | UPC: 840255587624 • GTIN: 00840255587624 |
Documents & Downloads
Outdoor Condenser: O-ES-09-HP-C-230C-O1
Indoor Cassette: CASSETTE09HP-230C-P-O
Important
- Installation: Licensed HVAC installation is required where applicable.
- Refrigerant and piping: R-454B refrigerant with flared connections (1/4" liquid, 3/8" suction).
- Line length: Maximum line set length is 82 ft. Longer runs can reduce performance and may require design adjustments.
- Electrical: 208–230V, 1-phase, 60 Hz. Outdoor unit: 15A max breaker and 15A MCA.
- Warranty: Specs list 5-year parts and 7-year compressor (condenser). Some materials reference extended or lifetime coverage with registration—use the Warranty document for the exact terms for this model pairing.
FAQs
Is professional installation required?
Licensed installation is required where applicable and is recommended for performance and warranty eligibility.
What size space does this cover?
Up to 400 sq ft, depending on climate, insulation, and room load.
Does it support app and voice control?
The system includes a remote. Some condenser-platform descriptions reference Wi-Fi/app and Alexa/Google support, while cassette fields list Wi-Fi/app as “No.” If app/voice control is required, confirm the included controller/module for this exact pairing.
What line sizes does it use?
Flared connections with 1/4" liquid and 3/8" suction lines.
What electrical circuit is required?
208–230V, 1-phase, 60 Hz. Outdoor unit: 15A max breaker and 15A MCA.
