4 Zone 36,000 BTU OLMO Sierra Ductless Mini Split AC Wall Mounted 9k+9k+9k+9k | No Kit

White Installation Kit OLMO 36000 BTU Ductless Mini Split Air Conditioner with R410A refrigerant 230V SEER 21.0 Inverter

White Outdoor Unit OLMO 36000 BTU Ductless Mini Split Air Conditioner with R410A refrigerant 230V SEER 21.0 Inverter

White Remote Control OLMO 36000 BTU Ductless Mini Split Air Conditioner with R410A refrigerant 230V SEER 21.0 Inverter

Installation Kit OLMO 36000 BTU Ductless Mini Split Air Conditioner with R410A refrigerant 230V SEER 21.0 Inverter

Drainage System OLMO 36000 BTU Ductless Mini Split Smart WiFi Control with R410A refrigerant 230V SEER 21.0 Inverter

Components OLMO 36000 BTU Ductless Mini Split Air Conditioner with R410A refrigerant 230V SEER 21.0 Inverter

OLMO5-Yr Warranty

OS-MSR36-230VO09WM09WM09WM09WM-NO

Product specifications

Brand	Olmo
Voltage	230V
SEER	21
WiFi	Included
Zone	Four Zone
Type	Wall Mount
Freon	R410A
Compressor	Inverter

~~$2,381.26~~ $2,214.57 Save 7% Sold out

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All Zones Installation Kit: No Installation Kit

No Installation Kit 16FT Installation Kit 25FT Installation Kit 50FT Installation kit

Product variants

Pickup currently unavailable at 3550 Northwest 113th Court

Hurry to buy! Get your mini-split system with R-410A refrigerant (offer valid until November 27)

Important info

R-410A is being phased down in favor of newer refrigerants; inventory is limited.
Existing R-410A systems remain serviceable; parts and qualified service are widely available.
Check local codes and rebates. Some incentives prioritize high-efficiency heat pumps (R-32/R-454B).
We stock both R-410A and next-gen options—choose what fits your timeline and budget.

Browse: R-410A systems · R-32 · R-454B

Sierra Wall Mount

OLMO's Multi-Zone Sierra Series is a versatile HVAC solution designed to provide efficient heating and cooling for multiple rooms, equipped with advanced inverter technology for precise temperature control and significant energy savings. Using eco-friendly R410A refrigerant, the system ensures reliable performance with minimal environmental impact. Perfect for residential or commercial applications, the Sierra Series offers quiet operation, flexible installation, and user-friendly controls, making it an ideal choice for maintaining year-round comfort across multiple zones with one efficient system.

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 R410A 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-M09SRW-230VI	OS-M12SRW-230VI	OS-M18SRW-230VI	OS-M24SRW-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-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
Cooling
EER2 Btu/h	12.5	12.5	12.5	10.5
SEER2 Btu/h	21.0	22.0	21.0	20.0
Heating
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
Refrigerant Type/Quantity oz	R410A/63.49	R410A/81.13	R410A/105.82	R410A/120
Refrigerant Precharge ft	50	75	98	98
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	66/197	66/246	66/262
Ambient Temperature
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

Multiple Control Methods

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

Frequently Asked Questions

How many rooms can the Olmo 4 Zone 36,000 BTU mini split cool?

The Olmo 4 Zone 36,000 BTU system is designed to efficiently cool up to four separate rooms, making it ideal for multi-zone applications. With a coverage area of up to 1,500 sq ft, this system provides targeted comfort throughout your home.

Can I mix BTU sizes with the Olmo mini split system?

Yes, you can mix BTU sizes when using the Olmo 4 Zone mini split system, although it is recommended to maintain balanced loads for optimal performance. The total BTU capacity of 36,000 allows for flexible configurations across the zones, as long as the combined demand does not exceed this limit.

Do all zones in the Olmo mini split run simultaneously?

The Olmo 4 Zone mini split allows for independent control of each zone, meaning you can choose to heat or cool all zones simultaneously or operate them individually based on your needs. This feature provides both energy efficiency and personalized comfort.

Why should I choose the Olmo mini split over multiple single-zone units?

Choosing the Olmo 4 Zone 36,000 BTU mini split can be more efficient than multiple single-zone units, thanks to its higher SEER rating of 21.0, which indicates superior energy efficiency and potential cost savings on your utility bills.

What warranty does the Olmo mini split offer?

The Olmo 4 Zone mini split system comes with a generous 5-year parts and compressor warranty, ensuring peace of mind with your investment. This warranty covers essential components, providing you with reliable support for years to come.

Does the Olmo mini split come pre-charged with refrigerant?

Yes, the Olmo 4 Zone mini split system is pre-charged with R410A refrigerant for up to 25 ft of line set, simplifying the installation process. This means you can install it without the need for additional refrigerant under typical conditions.