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MRCOOL

MRCOOL Olympus 18,000 BTU Mini-Split Condenser - 230V/60Hz

MULTI3-18HP230C-O

18,000 BTU · up to 3 zones · 25.1 SEER2 · 208/230V · R-454B

Part of Olympus 4th Gen – Multi-Zone Condensers

Cooling capacity
18,000 BTU1.5 tons
Zones
Up to 3
Efficiency
25.1 SEER29.8 HSPF2
Power
208/230V20A breaker
Refrigerant
R-454B

$1,473.00 each

Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. Professional installation by a licensed HVAC contractor is required for the manufacturer warranty.

Build a multi-zone system with this condenser →

Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.

About this product

The MRCOOL® Olympus MULTI3-18HP230C-O is a high-performance 18,000 BTU multi-zone heat pump condenser designed to power up to three indoor units simultaneously. Perfect for homeowners looking to efficiently manage temperatures in multiple spaces, this ductless system offers individualized climate control for each connected zone, making it a flexible solution for modern living environments. Built with advanced inverter technology, the unit delivers impressive efficiency, with SEER2 ratings up to 25.1 and HSPF2-4 up to 10. It performs reliably in diverse conditions, operating in outdoor temperatures as low as 5°F, ensuring comfort in both summer and winter months. This model is compatible with various MRCOOL indoor units, including wall-mounted, ceiling cassette, and concealed duct options, giving users the freedom to tailor the system to their home’s layout and aesthetics. Smart features elevate user convenience, with control options that include the MRCOOL SmartHVAC app, traditional remotes, or even voice commands via Amazon Alexa and Google Assistant. Additional functions such as sleep mode, auto restart, and refrigerant leak detection contribute to enhanced safety and comfort. Backed by a 7-year warranty on the compressor and 5 years on parts (with professional installation), the MRCOOL®Olympus MULTI3-18HP230C-O is a reliable and energy-efficient choice for those seeking customized, zone-specific heating and cooling.

Documents & manuals

Specifications

Capacity & efficiency
TypeCondenser (outdoor unit) — heat pump (heats & cools)
SeriesOlympus 4th Gen
Cooling capacity18,000 BTU
Heating capacity19,000 BTU
Nominal size1.5 tons
ZonesUp to 3
SEER225.1
EER214
HSPF29.8
Sound level59.5 dBA
Electrical
Voltage208/230V
Phase1-phase
Min. circuit ampacity (MCA)16 A
Max. breaker (MOP)20 A
Inverter compressorYes
Refrigerant & line set
RefrigerantR-454B
Factory charge61.73 oz
Max. line length196.8 ft
Liquid line3 x 1/4"
Suction line3 x 3/8"
Physical
Dimensions (in)35.04 W × 13.46 D × 26.5 H
Weight100.53 lb
Shipping weight109.35 lb
ColorWhite
Certifications, warranty & ordering
ENERGY STARYes
AHRI certifiedYes
Safety listingUL, ETL
Compressor warranty7 years
Parts warranty5 years
UPC840255587785

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