MRCOOL Olympus 4th Gen Mini Split - 4-Zone 48,000 BTU Air Conditioner and Heat Pump Condenser with 12K + 12K + 9K + 9K Ceiling Concealed Ducted Air Handlers

MRCOOL Olympus 4th Gen Mini Split - 4-Zone 48,000 BTU Air Conditioner and Heat Pump Condenser with 12K + 12K + 9K + 9K Ceiling Concealed Ducted Air Handlers

SKU: OY4-4ZD-48HP-9K9K12K12K

Sale price$6,563.00 Regular price$8,500.00
Save 23%



Choose Line Set Lengths:

12K Air Handler Line Set:

12K Air Handler Line Set:

9K Air Handler Line Set:

9K Air Handler Line Set:


In Stock Estimated delivery: Nov 14th-23rd
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Package Overview

The MRCOOL® Olympus 48K Multi-Zone Ducted System provides efficient, high-performance comfort for homes up to 1900 sq. ft. Featuring one  BTU multi-zone inverter condenser paired with two 9K and two 12K ducted air handlers , this system delivers personalized heating and cooling across multiple rooms. Compact, quiet, and eco-friendly with R-454B refrigerant, it combines advanced technology with smart control for a seamless, whole-home comfort experience.

Features

  • Total coverage: up to 1900 sq. ft. across 4 indoor zones
  • 48,000 BTU multi-zone inverter condenser supports up to 6 zones
  • Up to 24 SEER2 / 10.6 HSPF2-4 efficiency ratings
  • Eco-friendly R-454B refrigerant with low global warming potential
  • Smart control via MRCOOL® SmartHVAC app, Alexa, or Google Assistant
  • Quiet operation and long-lasting, reliable performance
  • Warranty: Limited lifetime, 7-year compressor, 5-year parts

Package Includes:

Description
Product Specs
Manuals & Guides

The MRCOOL® Olympus 48,000 BTU multi-zone heat pump condenser is a heating and cooling powerhouse engineered to handle up to six indoor units at once. Ideal for larger homes or spaces with diverse climate needs, this ductless solution offers precise, room-by-room comfort without the complexity of traditional HVAC systems. At the heart of its performance is advanced inverter technology, which maximizes energy efficiency with SEER2 ratings as high as 24 and HSPF2-4 ratings up to 10.6. Whether it’s sweltering heat or freezing cold, this unit remains dependable—capable of operating in outdoor temperatures as low as 5°F.

Flexible compatibility with MRCOOL indoor unit styles—including sleek wall mounts, ceiling cassettes, and concealed duct models—ensures seamless integration with your home’s design. Ease of use is built into the experience. Control your climate with the intuitive MRCOOL SmartHVAC app, traditional remotes, or hands-free commands via Amazon Alexa and Google Assistant. Features such as sleep mode, auto restart, and refrigerant leak detection are designed to keep your system running smoothly, safely, and efficiently. With a 7-year compressor warranty and a 5-year parts warranty (when professionally installed), the Olympus MULTI6-48HP230C-O delivers high-capacity performance, intelligent control, and year-round reliability—perfect for those who need complete climate flexibility throughout a larger living space.

Features

  • Installation by a licensed professional required where applicable 7-Year Compresser, 5-Year Parts warranty when registered and installed by a licensed professional R-454B environmentally friendly friendly refrigerant Energy Star Certified

Works With

  • O-09-HP-WMAH-230C-O
  • DUCT-09HP-230B-O
  • CASSETTE09HP-230C-O
  • O-12-HP-WMAH-230C-O
  • DUCT-12HP-230B-O
  • CASSETTE12HP-230C-O
  • O-18-HP-WMAH-230C-O
  • DUCT-18-HP-230B-O
  • CASSETTE18HP-230C-O
  • O-24-HP-WMAH-230C-O
  • DUCT-24HP-230B-O
  • CASSETTE24HP-230C-O
Net Dimensions (In) 16.34 D x 52.48 H x 37.48 W
Net Weight (Lbs) 222
SEER2 Up to 24
EER2 Up to 12.5
HSPF2-4 10.3
HSPF2-5 8
Tonnage 4
Cooling Capacity (Btu) 47000
Heating Capacity (Btu) 48000
Voltage (V) 208/230
Phase 1
Cycle 60
Max Fuse Breaker (A) 40
Min Circuit Ampacity (A) 34
Color White
Max Coverage Area Up to 2000
Zone Capacity 6
Refrigerant Type R-454B
Refrigerant Volume (Oz) 148.15
Decibel Rating (Dba) 63
Inverter DC
Max Lineset Length (Ft) 262.4 total
Lineset Fitting Type Flare
Liquid Line Size 6 x 1/4
Suction Line Size 4 x 3/8 + 2 x 1/2
Compressor Motor Type Rotary
Condenser Fan Motor Rpm 800/700/650
Metering Device EXV
UL Listed Yes
CSA Listed Yes
ETL Listed Yes
Energy Star Certified Yes
AHRI Certified Yes
Base Warranty 5-Year Parts/7-Year Compressor
Base Parts Warranty 5-Year
Base Compressor Warranty 7-Year
Base Remote Warranty 5 Year
Registered Labor Warranty None
Base Labor Warranty None
Has Batteries Yes
Contains Electronics Yes
Contains Chemicals Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes
Restricted States GU, PR, VI
Gross Depth (In) 19.49
Gross Height (In) 58.27
Gross Width (In) 43.11
Gross Weight (Lbs) 254.19
Description
Product Specs
Manuals & Guides

The MRCOOL® OLYMPUS 12K DUCT Air Handler delivers efficient and reliable heating and cooling for spaces up to 550 square feet, making it a great choice for bedrooms, home offices, and similarly sized areas. Designed for a discreet ceiling installation, the unit offers a flush-mount finish that seamlessly integrates with your space, enhancing the room’s aesthetic with a clean, modern look. Its compact and versatile design suits both residential and commercial applications, providing an ideal climate solution without sacrificing valuable square footage. For added convenience, the system includes both a wired wall-mounted controller and a handheld remote. Whether you prefer adjusting settings from the wall or without leaving the comfort of your couch, climate control is always within easy reach. This model features R-454B refrigerant, a high-efficiency, environmentally friendly option that delivers outstanding performance while minimizing environmental impact. With a low global warming potential, R-454B supports sustainability and helps reduce your household’s carbon footprint, all without compromising system effectiveness or energy efficiency.

The MRCOOL® OLYMPUS 12K DUCT Air Handler is backed by a limited lifetime warranty, along with 7-year compressor protection and a 5-year parts warranty—ensuring long-lasting performance and peace of mind. For those seeking energy-conscious comfort, modern design, and reliable climate control, this unit offers a high-performance solution tailored to today’s demands.

Works With

  • O-ES-12-HP-C-230C-O1
  • MULTI3-18HP230C-O
  • MULTI4-27HP230C-O
  • MULTI5-36HP230C-O
  • MULTI6-48HP230C-O
Net Dimensions (In) 19.92 D x 7.87 H x 27.56 W
Net Weight (Lbs) 39.46
Tonnage 1
Voltage (V) 208/230
Phase 1
Cycle 60
Max Fuse Breaker (A) 15
Min Circuit Ampacity (A) 3
Mount Type Ducted
Color Metal
Max Coverage Area Up to 550
Refrigerant Type R-454B
Decibel Rating (Dba) 36/36/34.5/32.5/25.5
Decibel Rating Low (Dba) 25.5
Decibel Rating High (Dba) 36
Air Flow Direction Ducted
Number Of Speeds 5 (Variable)
Oscillation No
Lineset Fitting Type Flare
Liquid Line Size 1/4
Suction Line Size 3/8
Blower Motor Speeds 400.2/323.7/264.9/176.6/117.7
Blower Motor Rpm 780/680/580
Auxiliary Heater Included No
Auxiliary Heater Available No
Fan Only Option Yes
Sleep Mode Yes
Auto Cool Yes
Wifi Compatibility No
App Compatibility No
Works With Ios No
Works With Android No
Remote Control Included Yes
UL Listed Yes
CSA Listed Yes
ETL Listed Yes
Base Warranty 5-Year Parts
Base Parts Warranty 5-Year
Base Remote Warranty 5 Year
Registered Labor Warranty None
Base Labor Warranty None
Has Batteries Yes
Contains Electronics Yes
Contains Chemicals Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes
Restricted States GU, PR, VI
Gross Weight (Lbs) 46.74
Description
Product Specs
Manuals & Guides

The MRCOOL® OLYMPUS 9K DUCT Air Handler is a reliable solution for heating and cooling spaces up to 400 square feet, making it an excellent fit for bedrooms, home offices, or other compact areas. Its ceiling-integrated design allows for a discreet, flush installation that blends effortlessly into any interior, providing a sleek and contemporary appearance. This space-saving setup is ideal for both residential and light commercial environments where aesthetics and functionality are equally important.

For convenient operation, the unit includes both a wall-mounted wired controller and a handheld remote, allowing you to adjust your settings from across the room or right at your fingertips. Whether you're relaxing on the couch or managing temperature throughout the day, controlling your climate is simple and user-friendly. The air handler utilizes R-454B refrigerant, a next-generation, eco-conscious option that combines high performance with environmental responsibility. Its low global warming potential (GWP) significantly reduces the unit’s ecological impact while maintaining energy efficiency and reliable operation. For environmentally mindful homeowners, R-454B is a smart choice that supports sustainability without compromising performance. Backed by a limited lifetime warranty, 7-year compressor coverage, and a 5-year parts warranty, the MRCOOL® OLYMPUS 9K DUCT Air Handler is built to deliver dependable, long-term comfort. It’s a perfect solution for those who appreciate energy efficiency, quiet operation, and sleek design all in one dependable system.

Work With

  • O-ES-09-HP-C-230C-O1
  • MULTI3-18HP230C-O
  • MULTI4-27HP230C-O
  • MULTI5-36HP230C-O
  • MULTI6-48HP230C-O
Net Dimensions (In) 19.92 D x 7.87 H x 27.56 W
Net Weight (Lbs) 39.46
Tonnage 0.75
Voltage (V) 208/230
Phase 1
Cycle 60
Max Fuse Breaker (A) 15
Min Circuit Ampacity (A) 3
Mount Type Ducted
Color Metal
Max Coverage Area Up to 400
Refrigerant Type R-454B
Decibel Rating (Dba) 32.5/32.5/31/29.5/23
Decibel Rating Low (Dba) 23
Decibel Rating High (Dba) 32.5
Air Flow Direction Ducted
Number Of Speeds 5 (Variable)
Oscillation No
Lineset Fitting Type Flare
Liquid Line Size 1/4
Suction Line Size 3/8
Blower Motor Speeds 323.7/264.9/206/147.2/117.7
Blower Motor Rpm 850/680/450
Auxiliary Heater Included No
Auxiliary Heater Available No
Fan Only Option Yes
Sleep Mode Yes
Auto Cool Yes
Wifi Compatibility No
App Compatibility No
Works With Ios No
Works With Android No
Remote Control Included Yes
Ul Listed Yes
Csa Listed Yes
Etl Listed Yes
Base Warranty 5-Year Parts
Base Parts Warranty 5-Year
Base Remote Warranty 5 Year
Registered Labor Warranty None
Base Labor Warranty None
Has Batteries Yes
Contains Electronics Yes
Contains Chemicals Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes
Restricted States GU, PR, VI
Gross Weight (Lbs) 46.74

Mini Split FAQ

 

What BTU rating should I choose for my air handler?

  • This depends on the coverage area/room size you are trying to heat/cool
  • An Air Handler's BTU is how powerful the fan is. A higher BTU rating will be able to heat/cool a larger area
Air Handler BTU Coverage Area/Room Size (Sq. Ft.)*
6K
Up to 200 Sq. Ft.
9K
Up to 375 Sq. Ft.
12K Up to 500 Sq. Ft.
18K Up to 750 Sq. Ft.
24k Up to 1,000 Sq. Ft.
36k Up to 1,500 Sq. Ft.

 

*Ceiling height, insulation, and local climate may impact the coverage area. For example, an uninsulated room will require more power than a well insulated room.

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