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OLMO - R32 - 22.5 - 1 zone - Wall Mount - Sierra - 110-115V and 208-230V

Smart Single Zone Ductless Split AC & Heat Pump Wall Mount - Sierra

Smart Single Zone Ductless Split AC & Heat Pump Wall Mount - Sierra

$694.96 USD
$694.96 USD
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OLMO Sierra — Single-Zone R32 Wall Mount Mini Split (9k–36k BTU, 115/230V)

Efficient, quiet heating & cooling with inverter technology, Wi-Fi control, and up to 22.5 SEER2 performance. Line set kit included for streamlined installs.

R32 9k–36k BTU Up to 22.5 SEER2 115V / 230V Wi-Fi 16-ft Line Set Included Inverter Heat Pump

Watch: Overview

Why homeowners choose Sierra

  • Inverter efficiency: Variable-speed compressor matches output to demand for comfort and savings.
  • Quiet operation: Low indoor sound ratings for bedrooms and living spaces.
  • Smart control: Built-in Wi-Fi / “Smart Connect from Anywhere.”
  • All-season comfort: Heat pump performance for year-round use.
  • Complete kit: 16-ft pre-flared copper line set and communication cable included.
At-a-glance
Capacity Range
9k–36k BTU (≈0.75–3 Ton)
Efficiency
Up to 22.5 SEER2
Refrigerant
R32
Power
115V & 208/230V options

What’s included

  • (1) Indoor wall-mount unit (size selected)
  • (1) Outdoor condenser (matching size)
  • Wireless handheld remote
  • 16-ft pre-flared copper line set + communication cable
  • Basic install accessories & user/installation manuals

Professional installation by a licensed HVAC technician required for warranty.

Key features

  • Remote control included
  • Smart Connect from Anywhere (Wi-Fi)
  • Comfortable Sleep Mode
  • Turbo & Eco Modes
  • Multiple fan speeds
  • Timer
  • Louver auto swing
  • Self-clean mode
  • LED display

Manufacturer may change specifications without notice.

Comfort modes

  • Auto — maintains setpoint automatically
  • Cool / Heat — direct seasonal control
  • Dry — dehumidifies while holding temperature
  • Sleep — 8-hour energy-saving profile
  • Timer — schedule on/off

Warranty

5-Year Compressor and 2-Year Parts (brand terms apply; registration required).

Register within 60 days of installation; see manufacturer warranty for details.

Tech specs — Models & performance

All data below is from the manufacturer’s R32 Single-Zone wall-mount spec sheet.

Indoor / Outdoor Model Power Cooling (BTU/h) SEER2 Heating (BTU/h) HSPF4 / HSPF5 COP2 MCA / Max Fuse (A)
OS-09SRW-115VI / OS-SR09-115VO 115V-1Ph-60 9,000 20.0 9,500 9.0 / 7.0 4.1 14.6 / 25
OS-12SRW-115VI / OS-SR12-115VO 115V-1Ph-60 12,000 18.0 12,000 8.5 / 8.0 3.4 15.6 / 25
OS-09SRW-230VI / OS-SR09-230VO 208/230V-1Ph-60 9,000 22.5 9,000 8.5 / 8.0 4.12 9.5 / 15
OS-12SRW-230VI / OS-SR12-230VO 208/230V-1Ph-60 12,000 20.0 12,000 8.5 / 8.0 3.5 9.5 / 15
OS-18SRW-230VI / OS-SR18-230VO 208/230V-1Ph-60 18,000 21.0 18,000 9.8 / 9.0 3.91 14.5 / 20
OS-24SRW-230VI / OS-SR24-230VO 208/230V-1Ph-60 24,000 19.5 24,000 8.5 / 8.0 3.3 21 / 35
OS-36SRW-230VI / OS-SR36-230VO 208/230V-1Ph-60 34,500 20.0 35,000 8.4 / 8.2 3.2 26.8 / 35

Dimensions, airflow & connections

Size Indoor (W×D×H) Indoor Airflow (CFM) Indoor Sound (dB(A)) Outdoor (W×D×H) Outdoor Sound (dB(A)) Lines (Liq/Gas) Max Line (ft) Max Lift (ft)
9k / 12k (115V & 230V) 33.5 × 10.62 × 8.19 in 353–382–341–294–247 42/39/37/35 28.13 × 21.25 × 9.5 in 53 1/4" / 3/8" 65.6 49.2
18k 42.5 × 12.37 × 9 in 647–647–588–482–382 48/45/41/39 31.88 × 23 × 11 in 56 1/4" / 1/2" 98.4 49.2
24k 42.5 × 12.37 × 9 in 706–706–647–559–441 50/48/43/41 33.88 × 25.5 × 12.2 in 60 3/8" / 5/8" 98.4 49.2
36k 52.75 × 14.83 × 10.81 in 706–706–647–559–441/647 50/47/43/39 35.43 × 13.38 × 29.5 in 60 3/8" / 5/8" 98.4 49.2

Factory precharge ~24.6 ft; verify additional charge rules in the current install manual.

Operating ambient (typ.): Indoor 5–118 °F (cool) / −5–75 °F (heat). See manual for model-specific limits.

Full description

Tap to expand

The Sierra single-zone R32 series delivers efficient, quiet heating and cooling for individual rooms. Inverter technology right-sizes output to demand to cut energy use and noise. Choose from Auto, Dry, Sleep, Turbo, Eco, and multi-speed fan options, and control from the couch or your phone. The included 16-ft pre-flared kit streamlines installs when line lengths fall within the factory charge.

FAQs

Is this system for heating and cooling?
Yes. The Sierra series is a heat pump mini split that provides both efficient cooling and reliable heating year-round.
Is it 115V or 230V?
This model is available in both 115V and 230V options. Select your preferred voltage from the dropdown above to match your electrical setup.
Does it come with a 16-ft installation kit?
Yes. Every Sierra Single-Zone system includes a 16-ft pre-flared copper line set, communication wire, and basic installation accessories.
Is the outdoor unit pre-charged with refrigerant?
Yes. The condenser ships pre-charged with R32 refrigerant for standard line lengths (approximately 24.6 ft). Additional charge may be required for longer runs.
What’s the warranty?
All Sierra systems include a 5-Year Compressor and 2-Year Parts Warranty. Installation by a licensed HVAC technician and registration within 60 days are required for full coverage.
Is it smart or Wi-Fi enabled?
Yes — Smart Connect Wi-Fi control is built in. Manage your comfort from anywhere using the mobile app or the included handheld remote.
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