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
- Brochure (EN)
- Installation Manual (EN)
- Service Manual (EN)
- Warranty (EN)
- AHRI Certificate
- Energy Guide
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.
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We will prepare your order within 24 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION: Please be kindly informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery. To AVOID delays, please check if the provided phone number in the order details is a current number where you can be reached. You can also contact the carrier directly and refer to your tracking number to set up a date and time for your appointment. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. PLEASE verify your shipping address, as changes to the address after freight has shipped can result in an additional 15% or higher fee depending on freight weight and dimensions.
SMALLWARES INFORMATION: Please be informed that for smaller items, such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves, when these items are ordered individually, they may be shipped via FedEx without a signature requirement. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING: Please inspect your boxes thoroughly when you receive them. They should arrive shrink-wrapped and on a pallet. If you notice any damages or imperfections (e.g. crushed box or forklift hole), please write comments on the receipt before signing for delivery, no matter how small damages seem. Contact us immediately to assist you.
Shipping & Delivery
We will prepare your order within 24–48 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION
Please be informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery.
To AVOID delays, please make sure the phone number in your order details is accurate and one where you can be reached. You may also contact the carrier directly using your tracking number to schedule your delivery.
It is your responsibility to ensure a safe and secure delivery environment. We are not liable for any packages that are stolen or lost after delivery is confirmed.
Please verify your shipping address carefully. Changes to your shipping address after the freight has been shipped may result in additional fees of 15% or more, depending on freight weight and dimensions.
SMALLWARES INFORMATION
Smaller items such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves may be shipped via FedEx without a signature requirement if ordered individually.
It is your responsibility to ensure a safe delivery location. We are not liable for packages lost or stolen after delivery confirmation. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING
Please inspect your boxes carefully upon delivery. Shipments should arrive shrink-wrapped and on a pallet. If you notice any damage or signs of mishandling (such as a crushed box or forklift puncture), write comments on the delivery receipt before signing, even if the damage appears minor.
Contact us immediately if any issues arise so we can assist you promptly.
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