LG 9,000 BTU 18 SEER2 Wall Mounted Ductless Mini Split Heat Pump System R32 Refrigerant Standard Efficiency Series with Wi-Fi | KSSAE091A

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KUSAE091A-KNSAE091A
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Condition:
New
Width:
30.31 (in)
Height:
21.26 (in)
Depth:
11.81 (in)

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Overview

LG 9,000 BTU 18 SEER2 Wall Mounted Ductless Mini Split Heat Pump System R32 Refrigerant Standard Efficiency Series with Wi-Fi | KSSAE091A

LG 9,000 BTU 18 SEER2 Wall Mounted Ductless Mini Split Heat Pump System R32 Refrigerant Standard Efficiency Series, model KSSAE091A
Product details

Description

The LG Viero KUSAE091A-KNSAE091A mini split delivers 9,000 BTU of high-efficiency heating and cooling, making it a smart option for smaller rooms or zoned comfort control. This wall-mounted unit uses eco-friendly R-410A refrigerant and features inverter technology for dynamic performance. Rated up to 26.0 SEER2 and 11.5 HSPF2, it meets the highest standards in energy efficiency and is designed for quiet, year-round operation.

Performance
Equipped with a variable-speed inverter compressor, this LG system maintains stable indoor temperatures with minimal cycling and improved energy use. It features a durable, corrosion-resistant outdoor coil and a compact indoor heat exchanger for reliable performance in both summer and winter. The airflow capacity of up to 330 CFM ensures rapid temperature adjustment, while advanced control logic improves overall operational efficiency.

Smart Features
The KUSAE091A-KNSAE091A integrates with LG ThinQ, allowing for app-based control via Wi-Fi and voice command compatibility with Google Assistant and Amazon Alexa. It supports smart scheduling, energy usage tracking, and zone-based comfort settings. These features make it easy for homeowners and property managers to maintain comfort while reducing energy consumption.

Comfort & Noise
This model emphasizes ultra-quiet operation, with indoor sound levels as low as 19 dBA—ideal for bedrooms, offices, or studio spaces. The multi-speed fan, auto-swing louvers, and precise temperature control create a consistent and draft-free indoor environment. LG’s comfort-enhancing features, including Auto Operation and Sleep Mode, enhance usability and convenience.

Use Case Fit
Optimized for single-zone applications, this 9,000 BTU system suits compact residential rooms, accessory dwelling units (ADUs), home offices, and retrofitted commercial spaces. It performs exceptionally in both hot and cold climates, offering a dependable solution in regions with seasonal extremes. This system is a preferred choice for zoning upgrades or standalone applications that demand efficiency and quiet performance.

Value & Reliability
Built with premium components and backed by LG's engineering quality, the KUSAE091A-KNSAE091A offers exceptional reliability and longevity. The inverter system reduces mechanical stress and power draw, enhancing overall durability. With its corrosion-resistant design, smart diagnostics, and optimized airflow management, this model is engineered for low maintenance and long-term value.

Summary Wrap-Up
The LG Viero KUSAE091A-KNSAE091A mini split system delivers efficient, whisper-quiet performance in a compact 9,000 BTU design. Its high SEER2/HSPF2 ratings, smart control features, and durable build make it a compelling solution for small residential or light commercial applications. Whether upgrading a bedroom, office, or standalone space, this LG system provides intelligent comfort with minimal energy impact.

Key Features

  • 9,000 BTU Capacity: Ideal for compact spaces like bedrooms, home offices, or guest suites.

  • Up to 26.0 SEER2 / 11.5 HSPF2 Efficiency: Delivers exceptional energy savings and optimal year-round performance.

  • LG ThinQ Wi-Fi Control: Enables smartphone scheduling, remote control, and smart home integration.

  • Ultra-Quiet Operation at 19 dBA: Maintains a peaceful environment, perfect for noise-sensitive areas.

  • Inverter Compressor Technology: Adjusts output to demand, ensuring efficient, stable temperature control.

  • High Airflow (Up to 330 CFM): Rapidly cools or heats the zone for quick comfort without overshooting.

  • Corrosion-Resistant Design: Built to withstand varied environmental conditions for long-term reliability.

White Paper

Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Brand:
LG
Width:
30.31 (in)
Height:
21.26 (in)
Depth:
11.81 (in)
Weight:
82.00 LBS
Connection Type:
Flared
AHRI Certified:
Yes
Configuration:
Wall Mount
Compressor Type:
Inverter
Capacity (Tons):
0.75
Cooling Capacity (BTU):
9,000
Electrical Phase:
1-Phase
Electrical Frequency:
60 Hz
Heating Output (BTU):
Under 10,000 BTU
Zones:
1
Refrigerant Type:
R-32
Product Category:
Ductless Mini Split Single Zone
Safety Information:
⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Prop 65 Warning:
Yes
Mount Type:
Wall Mount
System Type:
Heat Pump
SEER2:
18 SEER2
EER2:
12 EER2
HSPF2:
8 HSPF2
Cold Climate:
No
Minimum Heating Temp (°F):
5
Wi-Fi Control:
Built-In
Sound Level Indoor (dB):
21
Sound Level Outdoor (dB):
50
Voltage / Phase:
208/230V 1-Phase
Outdoor Unit KUSAE091A - Nominal Capacity (Tons):
0.75
Outdoor Unit KUSAE091A - Cooling Capacity (BTU/h):
9,000
Outdoor Unit KUSAE091A - Heating Capacity (BTU/h):
10,900
Outdoor Unit KUSAE091A - Refrigerant:
R-32
Outdoor Unit KUSAE091A - Voltage/Phase/Hz:
208-230 V / 1 Ph / 60 Hz
Outdoor Unit KUSAE091A - Minimum Circuit Ampacity (MCA):
10 A
Outdoor Unit KUSAE091A - Maximum Overcurrent Protection (MOP):
15 A
Outdoor Unit KUSAE091A - Compressor Type:
Inverter Twin Rotary
Outdoor Unit KUSAE091A - Minimum Heating Temp (F):
5 F
Outdoor Unit KUSAE091A - Sound Level (dB):
50
Outdoor Unit KUSAE091A - Liquid Line Size:
1/4 in
Outdoor Unit KUSAE091A - Suction Line Size:
3/8 in
Outdoor Unit KUSAE091A - Unit Dimensions (W x D x H):
28.22 in x 9.06 in x 19.5 in
Outdoor Unit KUSAE091A - Unit Weight:
55.3 lb
Outdoor Unit KUSAE091A - Shipping Weight:
60 lb
Indoor Unit KNSAE091A - Type:
Wall Mounted
Indoor Unit KNSAE091A - Nominal Capacity (Tons):
0.75
Indoor Unit KNSAE091A - Cooling Capacity (BTU/h):
9,000
Indoor Unit KNSAE091A - Heating Capacity (BTU/h):
10,900
Indoor Unit KNSAE091A - Refrigerant:
R-32
Indoor Unit KNSAE091A - Airflow (CFM):
148-459
Indoor Unit KNSAE091A - Sound Level (dB):
21-42
Indoor Unit KNSAE091A - Liquid Line Size:
1/4 in
Indoor Unit KNSAE091A - Suction Line Size:
3/8 in
Indoor Unit KNSAE091A - Unit Dimensions (W x D x H):
32.94 in x 7.44 in x 12.13 in
Indoor Unit KNSAE091A - Unit Weight:
19.2 lb
Indoor Unit KNSAE091A - Shipping Weight:
22 lb
Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.

2023 Energy Standards

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Documents & warranty
Warranty
10 Years Compressor & 10 Years Parts | Registration Required within 60 Days of Purchase
Videos2 videos
Introduction to LG Ductless Mini Split Systems
Frequently asked questions
What size is the ?
The is a 0.75 ton unit.
How much cooling does the provide?
It is rated for 9,000 BTU of cooling.
How many zones does the support?
It supports 1 zone(s).
What refrigerant does the use?
It uses R-32 refrigerant.
What is the SEER2 rating of the ?
The is rated at 18 SEER2 SEER2.
What is the HSPF2 heating efficiency of the ?
It is rated at 8 HSPF2 HSPF2.
How cold can it be outside for the to keep heating?
It is rated to heat down to 5 °F outdoors.
Can the be controlled over Wi-Fi?
Built-In.
How loud is the outdoors?
The rated outdoor sound level is 50 dB.
What power supply does the need?
It requires 208/230V 1-Phase power.
What warranty comes with the KUSAE091A-KNSAE091A?
10 Years Compressor & 10 Years Parts | Registration Required within 60 Days of Purchase
Who makes the KUSAE091A-KNSAE091A?
The KUSAE091A-KNSAE091A is made by LG.