MRCOOL Olympus 18,000 BTU Ductless Mini Split Heat Pump System, 230V – 4th Generation | Single Zone, 21.4 SEER2, R454B

MrCool Olympus ENERGY STAR 18,000 BTU Mini Split Heat Pump Condenser Overview

Premium Outdoor Unit, ENERGY STAR Certified, Eco-Friendly R-454B

The MrCool Olympus ENERGY STAR 4th Generation 18,000 BTU Mini Split Heat Pump Condenser delivers dependable year-round heating and cooling for spaces up to 800 sq. ft. — perfect for bedrooms, home offices, garages, and other mid-sized spaces. Its space-saving design makes outdoor installation fast and straightforward for a licensed HVAC professional, even in tight or unconventional spaces.

ENERGY STAR Certified Efficiency

With a 23.5 SEER2 rating, 12.7 EER2, and 10.8 HSPF2-4, this condenser delivers excellent energy efficiency — helping you reduce utility costs while qualifying for state and federal energy rebates and heat pump tax credits. ENERGY STAR certification means it meets strict EPA efficiency guidelines.

Smart Control, Your Way

Pair with a compatible MRCOOL Olympus indoor unit to unlock full smart control through the MRCOOL Smart HVAC app (iOS & Android) via built-in WiFi. Adjust temperature, set schedules, and monitor your system from anywhere. Works hands-free with Amazon Alexa and Google Assistant, and includes a wireless remote for traditional control.

Advanced Inverter Compressor

DC inverter-driven rotary compressor adjusts output to match your exact heating and cooling demand — eliminating the temperature swings and energy waste of traditional single-stage HVAC while delivering quieter, more consistent comfort.

Quiet Outdoor Operation

Operating at just 58 dB, the Olympus condenser runs quietly enough to install close to bedrooms, patios, and outdoor living spaces without disruption — a significant upgrade over traditional central AC compressors.

Eco-Friendly R-454B Refrigerant

Built for the future, the Olympus 4th Gen uses next-generation R-454B refrigerant — a low-GWP (global warming potential) option that meets upcoming EPA refrigerant transition requirements while delivering strong heating and cooling performance.

Built to Last

Corrosion-resistant construction stands up to coastal and humid climates. Premium components and rigorous quality control mean years of reliable operation in any environment.

Multi-Zone Compatible

Use as a single-zone condenser paired with a matching Olympus wall-mount air handler, or expand your system with compatible MRCOOL ducted and cassette indoor units for whole-home comfort.

Peace of Mind

Backed by an industry-leading warranty when registered and installed by a licensed professional:

• Limited Lifetime Warranty on the unit
• 7-Year Compressor Warranty
• 5-Year Parts Warranty

Features

• 18,000 BTU cooling & heating capacity (1.5 Ton) — covers up to 800 sq. ft.
• 23.5 SEER2 | 12.7 EER2 | 10.8 HSPF2-4 — ENERGY STAR certified
• 230V (208/230V) power supply, single-phase, 60 Hz
• R-454B refrigerant — next-generation, low-GWP, eco-friendly
• DC inverter-driven rotary compressor
• Quiet outdoor operation at 58 dB
• Corrosion-resistant construction for coastal & humid climates
• Electronic expansion valve (EXV) metering for precise refrigerant control
• Flare lineset fittings — professional install required
• Multi-zone compatible with MRCOOL wall-mount, ducted, and cassette indoor units
• ENERGY STAR certified | AHRI certified | ETL listed

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