OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump

Name: OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump
Brand: HVAC Mart
SKU: OS-MSR24-230VO18WM18WM-NO/NO
Price: 1490.66 USD
Availability: InStock

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 2

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 3

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 4

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 5

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 6

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 7

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 8

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 9

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 10

OLMO Sierra 24,000 BTU 2-Zone 18k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump — photo 11

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SEER2 22.0Heats & CoolsR410A

OLMO5-Yr WarrantySKU: OS-MSR24-230VO18WM18WM-NO/NO

$1,490.66

As low as $125/mo withaffirm

Product specifications

Voltage: 230V
SEER: 22.0
WiFi: Included
Zone: Dual Zone
Type: Wall Mount
Freon: R410A

See full Tech Specs

Choose Your Configuration

Indoor unit 1 · 18,000 BTU — installation kit: No Installation Kit

Indoor unit 2 · 18,000 BTU — installation kit: No Installation Kit

Choose a line-set kit length for each indoor unit. “No Installation Kit” ships the units only.

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ARMBRIDGE Non-Metallic A/C Whip 3/4" x 6 ft – Pre-Wired Liquid tight Conduit with 8/2 & 10/1 Wires for HVAC & Air Conditioner Power Connection-10%$34.00

FREE Delivery

Ships from the nearest of our three US warehouses, leaves in 1–2 business days. Shipping policy

Warranty Included

30-Day Returns

OLMO · SIERRA

Built for year-round comfort

OS-MSR24-230VO18WM18WM-NO/NO

System Specs

Cooling Capacity	24,000 BTU/h
SEER2	22.0
Voltage	230V
Refrigerant	R410A

Compressor	Inverter
Sound Level (indoor)	45/41/37 dB
Warranty	5-Yr Compressor

Indoor Unit Specs

Unit Dimensions (WxDxH)	Net / Gross Weight
48 × 12.63 × 9.25 in	31.97 / 37.48 lb

Sierra Series Description

The OLMO Sierra 2-zone ductless mini split system pairs the OS-MSR24-230VO outdoor unit with a 18,000 BTU wall-mount indoor unit and a 18,000 BTU wall-mount indoor unit. This 24,000 BTU inverter heat-pump system cools and heats 2 rooms independently, each on its own remote.

Tech Specifications

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.

WHEREVER YOU ARE

Control your comfort, your way

Easy scheduling & timer
Multiple ways to control your comfort
Smart geo location
In-app support & assistance
Voice control

IN THE BOX

Everything included with this system

OLMO Sierra 24,000 BTU Outdoor Condenser, 230V, R410A - Mini Split Air Conditioner Heat Pump
OLMO Sierra 18,000 BTU Indoor Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat Pump × 2

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

Outdoor Unit Specs— OS-MSR24-230VO

Outdoor Unit — OS-MSR24-230VO
Model	OS-MSR24-230VO
Net/Gross Weight	158.7/169.5 lb
Power Supply	208-230V, 1Ph, 60Hz
Maximum Fuse Size	30 A
Min. Circuit Ampacity	25 A
Copper Line Size (Liquid/Gas)	1/4"/3/8"
Noise Level	59 dB
Airflow	2.35 CFM

Indoor Unit Specs— OS-M18SRW-230VI

Indoor Unit — OS-M18SRW-230VI
Model	OS-M18SRW-230VI
Unit Dimensions (WxDxH)	48x12.63x9.25 in
Net/Gross Weight	31.97/37.48 lb
Packing Dimensions (WxDxH)	51.75x15.44x12.50 in
Power Supply	208-230V, 1Ph, 60Hz
Noise Level (Hi/Med/Lo)	45/41/37 dB

Series Comparison Table

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

Indoor Models

Specification	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
Capacity Btu/h	9000	12000	18000	23400
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
Liquid Side / Gas Side in	1/4" / 3/8"	1/4" / 3/8"	1/4" / 1/2"	3/8" / 5/8"

Outdoor Models

Specification	OS-MSR24-230VOThis model	OS-MSR18-230VO	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	24000	18000	32000	42000
EER2 Btu/h	12.5	12.5	12.5	10.5
SEER2 Btu/h	22.0	21.0	21.0	20.0
Rated Capacity Btu/h	24000	18000	36000	42000
HSPF2 Btu/h	9.05	9.50	9.00	8.95
COP2 W/W	3.66	3.45	3.37	3.17
Minimum Circuit Ampacity A	25	23	32.2	35
Max Fuse A	30	30	50	50
Outdoor Air Flow (Hi) CFM	2350	1850	3411	3411
Outdoor Side Noise Level dB(A)	55	55	59	63
Dimensions (WxHxD) in	37.38×33×13.38	33.88×26.38×12.25	37.38×41.38×13.38	37.38×41.38×13.38
Outdoor Unit Packing (WxHxD) in	43.75×18.13×36.25	39×17.75×28.75	43.75×18.13×47.25	43.75×18.13×47.25
Net/Gross Weight lbs	158.7/169.5	116.8/125.6	188.5/220.5	198.4/224.5
Refrigerant Type/Quantity oz	R410A/81.13	R410A/63.49	R410A/105.82	R410A/120
Refrigerant Precharge ft	75	50	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	66/197	82/164	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.

How many rooms can the Olmo 2 Zone 24,000 BTU mini split cool?

The Olmo 2 Zone 24,000 BTU mini split can effectively cool two rooms, with coverage up to 1,200 sq ft. This makes it an ideal solution for multi-room applications.

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

Yes, you can mix BTU sizes in a dual zone setup like the Olmo 2 Zone 24,000 BTU system, which includes a 12k BTU unit and an 18k BTU unit. Just ensure the total BTU does not exceed the system's capacity for optimal performance.

Do all zones of the Olmo mini split run simultaneously?

No, the Olmo mini split allows you to control each zone independently. This means you can run one zone while the other remains off, which can enhance energy efficiency.

Is the Olmo mini split more efficient than multiple single-zone units?

The Olmo 2 Zone 24,000 BTU mini split features a SEER rating of 22.0, which indicates superior energy efficiency compared to using multiple single-zone units. This can lead to lower energy bills and a more streamlined installation.

What is the warranty on the Olmo mini split system?

The Olmo mini split system comes with a comprehensive 5-year parts and compressor warranty, ensuring you have reliable coverage for your investment.

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

Yes, the Olmo mini split is pre-charged with R410A refrigerant for up to 25 ft of line set. This simplifies installation and ensures optimal performance from the start.

Manufacturer Technical Support

Reach your brand's tech support team directly

Cooper & Hunter

(888) 201-2119

Olmo Comfort

(800) 977-0724

AC Bravo

(786) 953-6706

Key Features

2-zone system — the OS-MSR24-230VO outdoor unit powers 2 independently controlled wall-mount indoor units
24,000 BTU nominal capacity across 2 zones, each room on its own remote
Inverter heat pump — efficient variable-speed cooling and heating from one system
R410A refrigerant; optional Wi-Fi control, remote included per zone

This System’s Zones

Zone	Type	Cooling
1	Wall Mount	18,000 Btu/h
2	Wall Mount	18,000 Btu/h