OLMO Sierra 18,000 BTU Outdoor Condenser, 230V, R454B - Mini Split Air Conditioner Heat Pump

Name: OLMO Sierra 18,000 BTU Outdoor Condenser, 230V, R454B - Mini Split Air
Brand: OLMO
SKU: OS-RMS18-230VO
Price: 1165.5 USD
Availability: InStock

OLMO Sierra series 18k BTU R454B outdoor unit with grille and fan

OLMO5-Yr Warranty

OS-RMS18-230VO

Product specifications

Brand	Olmo
Voltage	230V
SEER	22
WiFi	Not Included
Type	Outdoor Unit
Freon	R454B
Compressor	Inverter

$1,165.50

Shipping Policy calculated at checkout.

Product variants

⛔ Wait! This is an Individual Component To build a working system, this unit must match your other equipment in two ways:

Same Brand Only: Only pair with other same Brand and Series.
Same Refrigerant: Both units must use the exact same gas type (R454B, R32, or R410A).

Mixing different brands or refrigerant types will cause the system to fail and void your warranty.

Quantity

Pickup available at 3550 Northwest 113th Court

Usually ready in 2-4 days

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.

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.

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.

Frequently Asked Questions

What size mini split do I need for my home?

For effective cooling and heating, the Olmo Sierra 18,000 BTU unit is suitable for spaces up to 850 square feet. This capacity makes it ideal for medium-sized rooms or open areas.

Can I install a mini split myself?

While some homeowners may attempt a DIY installation, it's essential to note that the Olmo Sierra requires proper setup to ensure optimal performance. Professional installation is recommended, especially for the electrical and refrigerant connections.

Does the mini split come pre-charged with refrigerant?

Yes, the Olmo Sierra is pre-charged with R454B refrigerant for up to 25 ft of line set, allowing for easier installation. Ensure that your installation does not exceed this length to maintain efficiency.

What voltage does the Olmo Sierra mini split require?

The Olmo Sierra ductless mini split operates on a standard voltage of 230V. This makes it compatible with most residential electrical systems.

What warranty does the Olmo Sierra offer?

The Olmo Sierra comes with a solid 5-year parts and compressor warranty, providing peace of mind for your investment. This warranty ensures you are covered for any defects in materials or workmanship.

What SEER rating do I need for energy efficiency?

The Olmo Sierra boasts an impressive SEER rating of 22.0, which indicates high energy efficiency. A SEER rating above 16 is generally recommended for optimal energy savings, making this unit a great choice.