MRCOOL — Olympus E Star® 4th Gen (Single-Zone Ductless)
MRCOOL® Olympus E Star® 4th Gen 12,000 BTU (1 Ton) Ductless Mini Split Heat Pump — O-ES-12-HP-C-230C-O1 + O-12-HP-WMAH-230C-O
Overview
12,000 BTU Cooling12,000 BTU HeatingUp to 25.4 SEER2EER2 13.4HSPF2-4 10.5R-454BGold Fin®WiFi + AppAlexa / Google AssistantENERGY STAR®HVAC Tech Required
TheMRCOOL® Olympus E Star® 4th Gen 12kis a single-zone ductless mini split heat pump engineered forprofessional HVAC installation. It combines strong efficiency with quiet, steady inverter performance and includes aSmartHVAC WiFi control modulefor app control, scheduling, and monitoring. Voice control support withAmazon AlexaandGoogle Assistantis also available. The outdoor unit featuresGold Fin®corrosion protection and the system usesR-454Brefrigerant.
Highlights
- High efficiency:Up to25.4 SEER2with inverter-driven comfort.
- Wide operating range:Outdoor operation listed down to-22°F(heating and cooling).
- Gold Fin® condenser:Built to resist long-term corrosion (great for coastal applications).
- Smart control included:WiFi module + SmartHVAC app, plus Alexa/Google Assistant support.
- Comfort features:Sleep mode, louver position memory, and auto-restart.
- Installer-focused design:Compact outdoor unit and durable, enclosed condenser fan motor.
Coverage
351–500 sq ft*
351–500 sq ft*
Cooling / Heating
12,000 / 12,000 BTU
12,000 / 12,000 BTU
Efficiency
Up to 25.4 SEER2
Up to 25.4 SEER2
Sound
Indoor 22–36.5 dB(A)
Indoor 22–36.5 dB(A)
*Other provided notes indicate this 12k size is used for “up to 550 sq ft.” Real coverage varies by climate, insulation, and load.
What’s Included
- Outdoor Condenser:O-ES-12-HP-C-230C-O1
- Wall-Mounted Air Handler:O-12-HP-WMAH-230C-O
- SmartHVAC WiFi Control Module
- Remote Control
- Installation / service documentation (see Documents & Downloads)
Indoor Specs
Model:O-12-HP-WMAH-230C-O (Wall-Mounted Air Handler)
| System Type | Single-Zone Ductless Mini Split |
| Zone Capacity | 1 |
| Cooling / Heating Capacity | 12,000 BTU / 12,000 BTU |
| Coverage Area | 351–500 sq ft (see note in Highlights) |
| Indoor Noise (Hi/Mi/Lo) | 36.5 / 32.5 / 22 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 | 22.93 lb |
Outdoor Specs
Model:O-ES-12-HP-C-230C-O1 (Single-Zone Condenser)
| System Type | Single-Zone Ductless Mini Split Heat Pump |
| Cooling / Heating Capacity | 12,000 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 25.4 / 13.4 |
| HSPF2-4 / HSPF2-5 | 10.5 / 8 |
| 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
- HVAC technician required:This model is intended for installation by a licensed professional.
- Vacuum required:A licensed HVAC technician must pull a vacuum on the line set prior to commissioning.
- Refrigerant charge & line length:Factory charge supports line set; longer runs might require additional refrigerant.
- Coastal durability:Gold Fin® condenser helps resist corrosion.
FAQs
Does this system require professional installation?
Yes. Installation by a licensed HVAC technician is required for proper setup and performance.
Is WiFi control included?
Yes. A SmartHVAC WiFi control module is included, with app control plus Amazon Alexa and Google Assistant support.
How cold can it run?
Provided operating ranges list outdoor operation down to-22°Ffor 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 (extendable to a limited warranty upon registration, as provided).
