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What Stands Out
Complete 2-Zone System
Heat or cool 2 rooms independently from one 24000 BTU outdoor unit (12K+12K) — every zone sets its own temperature, delivered by wall mount indoor units.
Inverter Efficiency — SEER2 22
A variable-speed inverter compressor ramps to match the load instead of cycling on/off, holding SEER2 22 on 230V — steady comfort with noticeably lower energy bills.
Right-Sized Coverage
Engineered to heat & cool up to 800–1200 sq ft across 2 zones — matched capacity so you never over- or under-size the space.
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.
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, a 16ft Line Set, 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 2 Zone 24,000 BTU mini split cool?
The Olmo 2 Zone 24,000 BTU mini split is designed to effectively cool up to 1,200 square feet, making it suitable for multiple rooms depending on their size and layout.
Can I mix BTU sizes in the Olmo mini split system?
Yes, you can mix BTU sizes when configuring your Olmo mini split system. However, it's important to ensure that the combined BTU output does not exceed the total capacity of the 24,000 BTU system.
Do all zones in the Olmo mini split run simultaneously?
In the Olmo 2 Zone mini split system, you have the flexibility to operate each zone independently. This means you can choose to run one zone or both zones at the same time, depending on your cooling needs.
How does the Olmo mini split's efficiency compare to multiple single-zone units?
The Olmo mini split has a high efficiency rating of 22.0 SEER, which often outperforms multiple single-zone units in terms of energy consumption. This makes it a cost-effective solution for cooling multiple areas.
What are the warranty terms for the Olmo mini split system?
The Olmo mini split system comes with a 5-year parts and compressor warranty, providing you with peace of mind regarding the durability and reliability of your investment.
Does the Olmo mini split come pre-charged with refrigerant?
Yes, the Olmo mini split system is pre-charged with R410A refrigerant for up to 25 ft of line set, facilitating easier installation and ensuring optimal performance right from the start.
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