OLMO Sierra 9,000 BTU Single Zone Wall Mount, 115V, R32 - Ductless Mini Split Air Conditioner Heat Pump

The OLMO Sierra 9,000 BTU (0.75 Ton) single-zone wall-mount mini split is an air conditioner and heat pump running on R32 refrigerant with a 20.0 SEER2 inverter compressor on 115V power. A 16 ft copper line set and communication cable ship in the box, Smart Connect Wi-Fi app control is included, and the Blue Fin coated condenser resists corrosion. Heating operation continues down to −5°F outdoor ambient.

Key Features

• 9,000 BTU cooling / 9,500 BTU heating — inverter compressor, 115V
• 20.0 SEER2 / 12.5 EER2 / 9.0 HSPF2 — current R32-generation ratings
• 16 ft line set + communication cable INCLUDED (25 ft or 50 ft kit optional)
• Smart Connect Wi-Fi included — app control + IR remote
• Heats to −5°F outdoor ambient; cooling operation 5–118°F
• Blue Fin coated condenser — corrosion protection
• Self-clean, Turbo/Eco, Sleep mode, auto-swing louver, LED display
• UL Listed, AHRI Certified — distributed in the USA by Comfortside LLC

Included in Your Order

• Outdoor unit (condenser): OS-SR09-115VO — 9,000 BTU, pre-charged for up to 24.6 ft of line
• Indoor unit (air handler): OS-09SRW-115VI, wall mount, with IR remote control
• 16 ft installation kit in the box (copper line set + communication cable) — or choose a 25 ft / 50 ft kit
• Smart Connect Wi-Fi app control

Specifications — OS-09SRW-115VI + OS-SR09-115VO

Power Supply	115V, 1Ph, 60Hz
Cooling / Heating Capacity	9,000 / 9,500 Btu/h
SEER2 / EER2	20.0 / 12.5
HSPF2 (Region IV / V) / COP	9.0 / 7.0 / 4.1
Minimum Circuit Ampacity (MCA)	14.6 A
Max. Fuse / Breaker	25 A
Indoor Air Flow (Turbo/Hi/Mid/Lo/Silent)	353 / 382 / 341 / 294 / 247 CFM
Indoor Noise Level	42 / 39 / 37 / 35 dB(A)
Indoor Unit Dimensions (W×D×H)	33.5 × 10.62 × 8.19 in
Indoor Unit Net / Gross Weight	18.5 / 23.1 lbs
Outdoor Air Flow	470 CFM
Outdoor Noise Level	53 dB(A)
Outdoor Unit Dimensions (W×D×H)	28.13 × 21.25 × 9.5 in
Outdoor Unit Weight	52.9 / 61.7 lbs
Refrigerant Type / Charge	R32 / 21.2 oz
Design Pressure	620 PSIG
Pre-charged Line Length	up to 24.6 ft
Line Set (Liquid / Gas)	1/4" / 3/8"
Max. Pipe Length	65.6 ft
Max. Elevation Difference	49.2 ft
Operating Range — Cooling / Heating	5–118°F / −5–75°F outdoor ambient

OLMO Sierra Single-Zone (R32) Lineup

Capacity	Model (Indoor + Outdoor)	Voltage	SEER2
9,000 BTU	OS-09SRW-115VI + OS-SR09-115VO	115V	20.0
12,000 BTU	OS-12SRW-115VI + OS-SR12-115VO	115V	18.0
9,000 BTU	OS-09SRW-230VI + OS-SR09-230VO	208/230V	22.5
12,000 BTU	OS-12SRW-230VI + OS-SR12-230VO	208/230V	20.0
18,000 BTU	OS-18SRW-230VI + OS-SR18-230VO	208/230V	21.0
24,000 BTU	OS-24SRW-230VI + OS-SR24-230VO	208/230V	19.5
36,000 BTU	OS-R36SRW-230VI + OS-RSR36-230VO	208/230V	20.0

Warranty & Support

Covered by OLMO’s 5-year compressor / 2-year parts warranty — installation by a licensed HVAC professional and registration at olmo-comfort.com within 60 days required. OLMO is distributed in the USA by Comfortside LLC, so replacement parts and English-speaking support are readily available.

Questions about sizing or line-set length? Our HVAC specialists will help you pick the right system before you order.

Frequently Asked Questions

What’s included in this system?

A complete single-zone system: the indoor unit and its matching outdoor condenser. Choose a line-set kit length at checkout, or supply your own.

What size room does it suit?

It is rated at 9,000 BTU — size it to your room’s square footage and insulation for the best match.

Does it heat as well as cool?

Yes — it is an inverter heat pump that both cools and heats. See the specifications for this model’s heating range.

What refrigerant does it use?

R32. The system ships factory pre-charged; a licensed installer adjusts the charge for your line length.

Who should install it?

A licensed HVAC professional — required for the refrigerant, electrical, and startup work, and to keep the manufacturer warranty valid. Many customers buy the equipment here and hire a local installer.

What warranty does it come with?

It is backed by OLMO’s limited manufacturer warranty — 5-year compressor, 2-year parts, and 1-year remote; professional installation and registration at olmo-comfort.com within 60 days are required to keep coverage valid.