Name: LG 45,000 BTU 20.9 SEER2 Five Zone Art Cool Mirror Wall Mounted Ductless Mini Split Heat Pump System 9+9+9+9+9 R32 Refrigerant | KUMXB541A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-PMBD3641ZR-PMBD3630ZR-ARBLN03321
Brand: LG
SKU: KUMXB541A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-PMBD3641ZR-PMBD3630ZR-ARBLN03321
Price: 14136.85 USD
Availability: InStock

LG 45,000 BTU 20.9 SEER2 Five Zone Art Cool Mirror Wall Mounted Ductless Mini Split Heat Pump System 9+9+9+9+9 R32 Refrigerant | KUMXB541A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-PMBD3641ZR-PMBD3630ZR-ARBLN03321

Description

Overview

This LG Multi F MAX heat pump system pairs the KUMXB541A outdoor unit with 5 LG Art Cool Mirror wall-mounted indoor units for five-zone heating and cooling. Every indoor unit in this system is the same style, so each room gets matching appearance, airflow and controls. The system runs on 208/230V, 1-phase, 60 Hz power and uses R-32 refrigerant.

What Is Included

1 x KUMXB541A multi-zone outdoor unit (up to 8 indoor units through branch distribution units, LG R1 twin rotary inverter compressor)
5 x KNUAK091A (9,000 BTU LG Art Cool Mirror wall-mounted indoor unit)
1 x PMBD3641ZR 4-port branch distribution unit
1 x PMBD3630ZR 3-port branch distribution unit
1 x ARBLN03321 Y-branch kit (connects the two branch distribution units)

Performance

LG rates Multi F MAX systems by total connected indoor capacity. At 45,000 BTU/h connected (non-ducted), this system is rated at 20.9 SEER2, 13.1 EER2 and 9.8 HSPF2, with a rated cooling capacity of 45,000 BTU/h and a rated heating capacity of 50,670 BTU/h. Heating operation is rated down to -4 F outdoor temperature (wet bulb) and cooling operation from 14 F to 118 F.

Comfort and Noise

Each zone has its own indoor unit and set point, so occupied rooms can be conditioned independently while unused rooms stay idle. The inverter compressor adjusts its speed to match the load, which holds temperatures steadily and reduces on/off cycling.

Smart Features

These indoor units have built-in Wi-Fi for control through the LG ThinQ app. Each indoor unit includes a wireless remote controller.

Use Case Fit

Wall-mounted indoor units suit bedrooms, offices, living rooms and additions where a high wall location is available. Confirm room loads, line set lengths and electrical requirements before ordering. Professional installation is recommended.

Value and Reliability

Bundling the outdoor unit with matched indoor units and branch distribution units in one product simplifies ordering. Warranty: 7 Years Compressor & 5 Years Parts | Registration Required within 60 Days of Purchase.

Key Features

Five-zone system: 9K + 9K + 9K + 9K + 9K
20.9 SEER2 / 9.8 HSPF2
R-32 refrigerant
Heating down to -4 F
Single indoor style throughout: LG Art Cool Mirror wall-mounted

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.

Quick sizing snapshot

Enter your home size and a few basics to see a quick HVAC365 sizing snapshot you can review with a Professional.

Home size (sq ft)

Enter at least 100 sq ft.

Use conditioned square footage only; skip garages and unfinished basements.

Climate

We’ll auto-detect for U.S. visitors.

Home type

Select your home type.

Shared walls and insulation levels change the load—pick what matches your structure.

System type

Choose a system type.

Match the system to your ductwork, fuel, or preferred heat source for best comfort.

This is a sizing estimate for general guidance only. Always confirm final size, duct design, and fuel type with a Professional before purchasing equipment or pulling permits.

Brand:

Weight:

339.70 LBS

Prop 65 Warning:

Yes

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.

Cooling Capacity (BTU):

50,500

Capacity (Tons):

4.5

Zones:

Mount Type:

Wall Mount

System Type:

Heat Pump

SEER2:

20+ SEER2

EER2:

13+ EER2

HSPF2:

9 HSPF2

Cold Climate:

Minimum Heating Temp (°F):

-4

Compressor Stages:

Variable Speed

DOE Regional Compliance:

Nationwide

Refrigerant Type:

R-32

Voltage / Phase:

208/230V 1-Phase

Sound Level Outdoor (dB):

53 / 55 (cool/heat)

Indoor Unit Combination:

9K + 9K + 9K + 9K + 9K

Wi-Fi Control:

Built-In (LG ThinQ)

Product Line:

LG Multi F MAX

AHRI Rating Basis:

Non-Ducted rating at this total connected capacity (LG Combination Data Manual)

Branch Boxes Included:

1 x PMBD3641ZR + 1 x PMBD3630ZR + 1 x ARBLN03321 Y-branch

Indoor Unit KNUAK091A - Quantity:

Branch Box PMBD3641ZR - Quantity:

Branch Box PMBD3630ZR - Quantity:

Y-Branch Kit ARBLN03321 - Quantity:

Outdoor Unit KUMXB541A - Unit Type:

Multi-Zone Outdoor Unit (Multi F MAX)

Outdoor Unit KUMXB541A - Cooling Capacity (BTU/h):

50,500

Outdoor Unit KUMXB541A - Heating Capacity (BTU/h):

58,000

Outdoor Unit KUMXB541A - Maximum Indoor Units:

Outdoor Unit KUMXB541A - Minimum Indoor Units:

Outdoor Unit KUMXB541A - Connected Indoor Capacity Range (BTU/h):

18,000 - 73,000

Outdoor Unit KUMXB541A - Connection Method:

Branch distribution unit(s) required

Outdoor Unit KUMXB541A - Compressor:

LG R1 Compressor - Twin Rotary Inverter

Outdoor Unit KUMXB541A - Voltage/Phase/Hz:

208-230 V / 1 Ph / 60 Hz

Outdoor Unit KUMXB541A - MCA / MOCP:

33.3 A / 40 A

Outdoor Unit KUMXB541A - Rated Amps Cool / Heat:

24.3 / 24.3 A

Outdoor Unit KUMXB541A - Unit Dimensions (W x D x H):

37.41 in x 13 in x 54.34 in

Outdoor Unit KUMXB541A - Liquid Line Size:

3/8 in

Outdoor Unit KUMXB541A - Vapor Line Size:

3/4 in

Outdoor Unit KUMXB541A - Cooling Operating Range:

14 to 118 F DB (-4 F with wind baffle kit)

Outdoor Unit KUMXB541A - Heating Operating Range:

-4 to 64 F WB

Outdoor Unit KUMXB541A - Sound Level (dB):

53 / 55 (cool/heat)

Outdoor Unit KUMXB541A - Maximum Total Piping Length:

475.7 ft

Outdoor Unit KUMXB541A - Unit Weight:

194 lb

Indoor Unit KNUAK091A - Unit Type:

Art Cool Mirror Wall Mounted Indoor Unit

Indoor Unit KNUAK091A - Cooling Capacity (BTU/h):

9,000

Indoor Unit KNUAK091A - Heating Capacity (BTU/h):

10,900

Indoor Unit KNUAK091A - Airflow (CFM):

268 / 218 / 169 (H/M/L)

Indoor Unit KNUAK091A - Sound Level (dB):

Indoor Unit KNUAK091A - Unit Dimensions (W x D x H):

32.94 in x 7.56 in x 12.12 in

Indoor Unit KNUAK091A - Liquid Line Size:

1/4 in

Indoor Unit KNUAK091A - Vapor Line Size:

3/8 in

Indoor Unit KNUAK091A - Voltage/Phase/Hz:

208-230 V / 1 Ph / 60 Hz

Indoor Unit KNUAK091A - Controller:

AKB76044208 wireless (included)

Branch Box PMBD3641ZR - Unit Type:

4-Port Branch Distribution Unit (R-32)

Branch Box PMBD3641ZR - Ports:

Branch Box PMBD3641ZR - Maximum Capacity per Port (BTU/h):

Ports A-C 24,000; Port D 36,000

Branch Box PMBD3641ZR - Maximum Total Capacity (BTU/h):

73,000

Branch Box PMBD3641ZR - Outdoor Side Connection:

3/8 in liquid / 3/4 in vapor (brazed)

Branch Box PMBD3641ZR - Voltage/Phase/Hz:

208-230 V / 1 Ph / 60 Hz

Branch Box PMBD3641ZR - Installation:

Indoor

Branch Box PMBD3630ZR - Unit Type:

3-Port Branch Distribution Unit (R-32)

Branch Box PMBD3630ZR - Ports:

Branch Box PMBD3630ZR - Maximum Capacity per Port (BTU/h):

24,000

Branch Box PMBD3630ZR - Maximum Total Capacity (BTU/h):

72,000

Branch Box PMBD3630ZR - Outdoor Side Connection:

3/8 in liquid / 3/4 in vapor (brazed)

Branch Box PMBD3630ZR - Voltage/Phase/Hz:

208-230 V / 1 Ph / 60 Hz

Branch Box PMBD3630ZR - Installation:

Indoor

Y-Branch Kit ARBLN03321 - Unit Type:

Y-Branch Kit for two branch distribution units (R-32)

Warranty Information

7 Years Compressor & 5 Years Parts | Registration Required within 60 Days of Purchase

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

LG 45,000 BTU 20.9 SEER2 Five Zone Art Cool Mirror Wall Mounted Ductless Mini Split Heat Pump System 9+9+9+9+9 R32 Refrigerant | KUMXB541A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-KNUAK091A-PMBD3641ZR-PMBD3630ZR-ARBLN03321

LG

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