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OLMO Sierra 24,000 BTU Indoor Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump

SEER2 22.0Heats & CoolsR410A

OLMO5-Yr WarrantySKU: OS-M24SRW-230VI

$315.00
As low as $27/mo withaffirm
Product specifications
Voltage
230V
SEER
22.0
WiFi
Not Included
Type
Wall Mount
Freon
R410A
See full Tech Specs

Choose Your Configuration

Installation Kit: No Installation Kit

“No Installation Kit” ships the units only.

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OLMO · SIERRA

Built for year-round comfort

Indoor unit

OS-M24SRW-230VI

System Specs

Cooling Capacity24,000 BTU/h
SEER222.0
Voltage230V
RefrigerantR410A
CompressorInverter
Sound Level (indoor)47/45/42
Warranty5-Yr Compressor

Indoor Unit Specs

Unit Dimensions (WxDxH)Net / Gross WeightRemote Control
42 3/4 × 12 3/8 × 9 5/16 in31.97 / 37.48 lbL1-12

Sierra Series Description

The OLMO 24,000 BTU wall mount is a wall mount indoor unit for OLMO ductless mini split systems, running on R410A refrigerant. It mounts in a single room or zone and is controlled independently with its included remote — pair it with a compatible outdoor condenser to complete your system.

6 Modes for Maximum Comfort

Engineered to adapt to every season, every room, every need.

Auto mode

Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed. Ideal for year-round use.

5YEAR COMPRESSOR
WARRANTY

BACKED BY OLMO COMFORT

Industry-leading protection on every unit

  • Compressor: 5-year coverage

    With product registration after professional installation.

  • Parts & components: 3-year coverage

    All major components and refrigerant circuit parts.

Technical Specifications

Indoor Unit Specs— OS-M24SRW-230VI

Indoor Unit — OS-M24SRW-230VI
ModelOS-M24SRW-230VI
Net/Gross weight (lb)31.97/37.48
Indoor noise level (Hi/Med/Lo) (dB)47/45/42
Indoor Airflow (Turbo/Hi/Mi/Lo) (CFM)706
Refrigerant typeR410A
Packing dimensions (WxDxH)46 1/16x15 3/8x12 7/16
Unit dimensions (WxDxH)42 3/4x12 3/8x9 5/16
ControllerL1-12
Refrigerant piping Liquid/Gas side (inch)3/8 5/8
BTU Rated23,400
Power source208-230V, 1Ph, 60Hz

Series Comparison Table

Technical specifications for every model in the series — this product is one of them.

Indoor Models

SpecificationOS-M24SRW-230VIThis modelOS-M09SRW-230VIOS-M12SRW-230VIOS-M18SRW-230VI
Power Supply V-Ph-Hz208/230V-1Ph-60208/230V-1Ph-60208/230V-1Ph-60208/230V-1Ph-60
Capacity Btu/h2340090001200018000
Rated Capacity Btu/h2600095001300019000
Output Power W35252535
Rated Current A0.170.110.110.17
Indoor Air Flow CFM706341365647
Indoor Noise Level (Hi/Mi/Lo) dB(A)47/45/4239/35/3039/35/3045/41/37
Net Dimensions (WxHxD) in48x12.63x9.2532.02x10.75x8.1337.38x10.75x8.1348x12.63x9.25
Packing (WxHxD) in51.75x15.44x12.5039.38x13.19x6.3839.38x13.19x6.3851.75x15.44x12.50
Net/Gross Weight lbs31.97 / 37.4819.84 / 24.2519.84 / 24.2531.97 / 37.48
Liquid Side / Gas Side in3/8" / 5/8"1/4" / 3/8"1/4" / 3/8"1/4" / 1/2"

Outdoor Models

SpecificationOS-MSR18-230VOOS-MSR24-230VOOS-MSR36-230VOOS-MSR42-230VO
Power Supply V-Ph-Hz208/230V-1Ph-60208/230V-1Ph-60208/230V-1Ph-60208/230V-1Ph-60
Capacity Btu/h18000240003200042000
EER2 Btu/h12.512.512.510.5
SEER2 Btu/h21.022.021.020.0
Rated Capacity Btu/h18000240003600042000
HSPF2 Btu/h9.509.059.008.95
COP2 W/W3.453.663.373.17
Minimum Circuit Ampacity A232532.235
Max Fuse A30305050
Outdoor Air Flow (Hi) CFM1850235034113411
Outdoor Side Noise Level dB(A)55555963
Dimensions (WxHxD) in33.88×26.38×12.2537.38×33×13.3837.38×41.38×13.3837.38×41.38×13.38
Outdoor Unit Packing (WxHxD) in39×17.75×28.7543.75×18.13×36.2543.75×18.13×47.2543.75×18.13×47.25
Net/Gross Weight lbs116.8/125.6158.7/169.5188.5/220.5198.4/224.5
Refrigerant Type/Quantity ozR410A/63.49R410A/81.13R410A/105.82R410A/120
Refrigerant Precharge ft50759898
Liquid Side / Gas Side in1/4" / 3/8"1/4" / 3/8"1/4" / 3/8"1/4" / 3/8"
Max Refrigerant Pipe Length Each/Total ft82/16466/19766/24666/262
Outdoor (Cooling) °F14~114.814~114.814~114.814~114.8
Outdoor (Heating) °F-13~75.2-13~75.2-13~75.2-4~75.2

Frequently asked questions.

What size mini split do I need for my room?

For optimal performance, the OLMO Sierra 24,000 BTU model is suitable for spaces up to 1200 sq ft. This makes it ideal for larger rooms or open floor plans.

Can I install a mini split system myself?

While DIY installation is possible, it is recommended to have a professional install the OLMO Sierra for best results. This unit operates at 230V and involves connecting up to 25 ft of line set, which can be complex for inexperienced users.

Does the mini split come pre-charged with refrigerant?

Yes, the OLMO Sierra comes pre-charged with R410A refrigerant for up to 25 ft of line set. This allows for easier installation, though additional refrigerant may be necessary for longer runs.

What voltage does the mini split require?

The OLMO Sierra operates on a 230V electrical system, which is standard for residential mini split installations. Ensure your electrical setup matches this voltage for proper operation.

What warranty does the OLMO Sierra offer?

The OLMO Sierra comes with a 5-year parts and compressor warranty, providing peace of mind for your investment. This warranty covers essential components, ensuring long-term reliability.

What SEER rating do I need for energy efficiency?

The OLMO Sierra boasts an impressive SEER rating of 22.0, which exceeds the minimum efficiency standards. A higher SEER rating means lower energy costs and better overall performance, making it a great choice for energy-conscious consumers.

Talk to a Sales Specialist

Not sure which system is right for your space? Our experts help with sizing and installation questions.

Mon – Fri, 8 AM – 5 PM (PST)

Get Support

Manufacturer Technical Support

Reach your brand's tech support team directly

Cooper & Hunter


(888) 201-2119

Olmo Comfort


(800) 977-0724

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The OLMO 24,000 BTU wall mount is a wall mount indoor unit for OLMO ductless mini split systems, running on R410A refrigerant. It mounts in a single room or zone and is controlled independently with its included remote — pair it with a compatible outdoor condenser to complete your system.

Key Features

  • Wall Mount indoor unit for OLMO multi-zone / single-zone systems
  • 24,000 BTU nominal capacity
  • Individually controlled with included remote — set its own temperature per room
  • R410A refrigerant
  • Inverter heat pump — cools and heats when paired with a compatible condenser

Works With

Connects to a compatible OLMO outdoor condenser (multi-zone or single-zone), sold separately. Choose a copper line-set kit length at checkout, or supply your own.

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