2 Zone 27,000 BTU OLMO Sierra Ductless Mini Split AC Wall Mounted 18k+18k | No Kit No Kit

OLMO5-Yr Warranty

OS-RMS27-230VOM18SRWM18SRW-NO/NO
Product specifications
Brand Olmo
Voltage 230V
SEER 21
WiFi Included
Type Wall Mount
Freon R454B
Compressor Inverter
$2,379.00
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18,000 Installation Kit: No Installation Kit
18,000 Installation Kit (2): No Installation Kit

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18,000 Installation Kit
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Sierra Wall Mount

OLMO's Multi-Zone Sierra Series is a versatile HVAC solution that provides efficient heating and cooling for multiple rooms, featuring advanced inverter technology for precise temperature control and significant energy savings. Using eco-friendly R410A refrigerant, the system delivers reliable performance with minimal environmental impact. Ideal for both residential and commercial applications, the Sierra Series combines quiet operation, flexible installation, and user-friendly controls, making it a perfect choice for maintaining year-round comfort across multiple zones with one efficient system.

White multi-zone sierra air conditioner with shield logo and checkmark.

Warranty and Tech Support Info

By selecting OLMO products for your home or business, you’ll receive expert technical support from heating and cooling specialist, including access to product manuals, troubleshooting guides and warranty information.

The manufacturer provides a Limited Warranty of 5 years for the compressor and 2 years for parts.

Warranty terms
White wall-mounted air conditioner with sleek design and modern aesthetic.

Main Features

OLMO's Multi-Zone Sierra Series delivers efficient multi-room comfort with advanced inverter technology for precise temperature control. Its eco-friendly R454B refrigerant reduces environmental impact, while quiet operation ensures minimal disruption. With flexible installation options, sleek design, and reliable heating and cooling, it’s the perfect solution for modern multi-zone climate control needs.

All Accessories Included

With your purchase, you receive a comprehensive MiniSplit system. MiniSplits4Less ensures you have everything needed for a seamless installation. Your package includes an Indoor Unit, Outdoor Unit, Remote Control, Manuals, optional LineSet, and a Smartkit (WIFI). We've meticulously thought of every detail to provide you with all the essentials for your installation.

Technical Specifications

Indoor Models OS-RM09SW-230VI OS-RM12SW-230VI OS-RM18SW-230VI OS-RM24SW-230VI
Power Supply (V-Ph-Hz) 208/230V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60
Cooling Capacity (Btu/h) 9000 12000 18000 23400
Heating Rated Capacity (Btu/h) 9500 13000 19000 26000
Output Power (W) 25 25 35 35
Rated Current (A) 0.11 0.11 0.17 0.17
Indoor Air Flow (CFM) 341 365 647 706
Indoor Noise Level (Hi/Mi/Lo) (dB(A)) 39/35/30 39/35/30 45/41/37 47/45/42
Net Dimensions (WxHxD) (in) 32.02x10.75x8.13 37.38x10.75x8.13 48x12.63x9.25 48x12.63x9.25
Packing (WxHxD) (in) 39.38x13.19x6.38 39.38x13.19x6.38 51.75x15.44x12.50 51.75x15.44x12.50
Net/Gross Weight (lbs) 19.84 / 24.25 19.84 / 24.25 31.97 / 37.48 31.97 / 37.48
Refrigerant Piping (Liquid Side / Gas Side) (in) 1/4" / 3/8" 1/4" / 3/8" 1/4" / 1/2" 3/8" / 5/8"
Outdoor Models OS-RMS18-230VO OS-RMS24-230VO OS-RMS36-230VO OS-RMS42-230VO
Power Supply (V-Ph-Hz) 208/230V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60
Cooling Capacity (Btu/h) 18000 27000 36000 42000
EER2 13.33 12.85 12.85 12.0
SEER2 22.0 23.0 22.0 22.0
Heating Rated Capacity (Btu/h) 18000 27000 36000 36000
HSPF2 10.0 10.0 10.0 9.5
COP2 (W/W) 3.82 3.60 3.91 3.60
Max Fuse (A) 30 40 50 60
Outdoor Air Flow (Hi) (CFM) 1850 3357 3357 3357
Outdoor Side Noise Level (dB(A)) 55 62 64 64
Dimensions (WxHxD) (in) 33.88x26.38x12.25 38.38x32.88x14.12 38.38x32.88x14.12 38.38x32.88x14.12
Outdoor Unit Packing (WxHxD) (in) 39x28.75x17.75 43.75x37.75x18.12 43.75x37.75x18.12 43.75x37.75x18.12
Net/Gross Weight (lbs) 101.4/112.4 160.6/183.2 169.8/191.8 172/194
Refrigerant Type/Quantity (oz) R454B/51.15 R454B/76.2 R454B/105.8 R454B/105.8
Refrigerant Piping (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 82/230 82/230 82/262
Ambient Outdoor (Cooling) (°F) 5~125 5~125 5~125 5~125
Ambient Outdoor (Heating) (°F) -13~75 -13~75 -13~75 4~75

Multiple Control Methods

Olmo’s Multi-Zone Sierra Series can be managed with a user-friendly remote control and the. This options offer precise temperature adjustments and optimal climate control for ultimate convenience.

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Frequently Asked Questions

What size mini split do I need for my home?

To determine the right size mini split for your space, consider that the Olmo 2 Zone 27,000 BTU system can effectively cool or heat areas totaling up to approximately 1,500 to 2,000 square feet, depending on insulation and layout.

Can I install a mini split myself, or do I need a professional?

While DIY installation of the Olmo 2 Zone 27,000 BTU mini split is possible, it requires knowledge of HVAC systems and proper tools. If you choose a 16ft, 25ft, or 50ft installation kit, ensure you follow the manufacturer's guidelines to avoid issues.

Does the mini split come pre-charged with refrigerant?

Yes, the Olmo 2 Zone mini split is pre-charged with R454B refrigerant for up to 25 ft of line set, which simplifies installation. However, additional refrigerant may be necessary for longer runs.

What voltage does the Olmo mini split require?

The Olmo 2 Zone 27,000 BTU mini split operates on a 230V electrical system, making it suitable for most residential installations in North America.

What warranty does the Olmo mini split offer?

The Olmo 2 Zone mini split comes with a comprehensive 5-year parts and compressor warranty, ensuring peace of mind for your investment in cooling and heating.

What is the SEER rating of the Olmo mini split, and is it efficient?

The Olmo 2 Zone 27,000 BTU mini split boasts an impressive SEER rating of 21.0, which indicates high energy efficiency, helping you save on energy costs while maintaining comfort year-round.