OLMO Sierra 24,000 BTU Indoor Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump
OLMO5-Yr WarrantySKU: OS-M24SRW-230VI
Product specifications
- Voltage
- 230V
- SEER
- 22.0
- WiFi
- Not Included
- Type
- Wall Mount
- Freon
R410A
Choose Your Configuration
“No Installation Kit” ships the units only.
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OLMO · SIERRA
Built for year-round comfort
OS-M24SRW-230VI
System Specs
| Cooling Capacity | 24,000 BTU/h |
|---|---|
| SEER2 | 22.0 |
| Voltage | 230V |
| Refrigerant | R410A |
| Compressor | Inverter |
|---|---|
| Sound Level (indoor) | 47/45/42 |
| Warranty | 5-Yr Compressor |
Indoor Unit Specs
| Unit Dimensions (WxDxH) | Net / Gross Weight | Remote Control |
|---|---|---|
| 42 3/4 × 12 3/8 × 9 5/16 in | 31.97 / 37.48 lb | L1-12 |
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.
Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed. Ideal for year-round use.
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
| Model | OS-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 type | R410A |
| Packing dimensions (WxDxH) | 46 1/16x15 3/8x12 7/16 |
| Unit dimensions (WxDxH) | 42 3/4x12 3/8x9 5/16 |
| Controller | L1-12 |
| Refrigerant piping Liquid/Gas side (inch) | 3/8 5/8 |
| BTU Rated | 23,400 |
| Power source | 208-230V, 1Ph, 60Hz |
Series Comparison Table
Technical specifications for every model in the series — this product is one of them.
Indoor Models
| Specification | OS-M24SRW-230VIThis model | OS-M09SRW-230VI | OS-M12SRW-230VI | OS-M18SRW-230VI |
|---|---|---|---|---|
| Power Supply V-Ph-Hz | 208/230V-1Ph-60 | 208/230V-1Ph-60 | 208/230V-1Ph-60 | 208/230V-1Ph-60 |
| Capacity Btu/h | 23400 | 9000 | 12000 | 18000 |
| Rated Capacity Btu/h | 26000 | 9500 | 13000 | 19000 |
| Output Power W | 35 | 25 | 25 | 35 |
| Rated Current A | 0.17 | 0.11 | 0.11 | 0.17 |
| Indoor Air Flow CFM | 706 | 341 | 365 | 647 |
| Indoor Noise Level (Hi/Mi/Lo) dB(A) | 47/45/42 | 39/35/30 | 39/35/30 | 45/41/37 |
| Net Dimensions (WxHxD) in | 48x12.63x9.25 | 32.02x10.75x8.13 | 37.38x10.75x8.13 | 48x12.63x9.25 |
| Packing (WxHxD) in | 51.75x15.44x12.50 | 39.38x13.19x6.38 | 39.38x13.19x6.38 | 51.75x15.44x12.50 |
| Net/Gross Weight lbs | 31.97 / 37.48 | 19.84 / 24.25 | 19.84 / 24.25 | 31.97 / 37.48 |
| Liquid Side / Gas Side in | 3/8" / 5/8" | 1/4" / 3/8" | 1/4" / 3/8" | 1/4" / 1/2" |
Outdoor Models
| Specification | OS-MSR18-230VO | OS-MSR24-230VO | OS-MSR36-230VO | OS-MSR42-230VO |
|---|---|---|---|---|
| Power Supply V-Ph-Hz | 208/230V-1Ph-60 | 208/230V-1Ph-60 | 208/230V-1Ph-60 | 208/230V-1Ph-60 |
| Capacity Btu/h | 18000 | 24000 | 32000 | 42000 |
| EER2 Btu/h | 12.5 | 12.5 | 12.5 | 10.5 |
| SEER2 Btu/h | 21.0 | 22.0 | 21.0 | 20.0 |
| Rated Capacity Btu/h | 18000 | 24000 | 36000 | 42000 |
| HSPF2 Btu/h | 9.50 | 9.05 | 9.00 | 8.95 |
| COP2 W/W | 3.45 | 3.66 | 3.37 | 3.17 |
| Minimum Circuit Ampacity A | 23 | 25 | 32.2 | 35 |
| Max Fuse A | 30 | 30 | 50 | 50 |
| Outdoor Air Flow (Hi) CFM | 1850 | 2350 | 3411 | 3411 |
| Outdoor Side Noise Level dB(A) | 55 | 55 | 59 | 63 |
| Dimensions (WxHxD) in | 33.88×26.38×12.25 | 37.38×33×13.38 | 37.38×41.38×13.38 | 37.38×41.38×13.38 |
| Outdoor Unit Packing (WxHxD) in | 39×17.75×28.75 | 43.75×18.13×36.25 | 43.75×18.13×47.25 | 43.75×18.13×47.25 |
| Net/Gross Weight lbs | 116.8/125.6 | 158.7/169.5 | 188.5/220.5 | 198.4/224.5 |
| Refrigerant Type/Quantity oz | R410A/63.49 | R410A/81.13 | R410A/105.82 | R410A/120 |
| Refrigerant Precharge ft | 50 | 75 | 98 | 98 |
| Liquid Side / Gas Side in | 1/4" / 3/8" | 1/4" / 3/8" | 1/4" / 3/8" | 1/4" / 3/8" |
| Max Refrigerant Pipe Length Each/Total ft | 82/164 | 66/197 | 66/246 | 66/262 |
| Outdoor (Cooling) °F | 14~114.8 | 14~114.8 | 14~114.8 | 14~114.8 |
| 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.
Manufacturer Technical Support
Reach your brand's tech support team directly
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OLMOOLMO Sierra 18,000 BTU Indoor Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump
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.

