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Today's Hours 8am - 11pm estLG 4 Zone Mini Split Systems
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SAVE $1,587.00LG 36,000 BTU Multi F 21.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 9 + 12 + 15Model: KUMXB361A / 2-KNUAB091A / KNUAB121A / KNMAB151AWas $7,922.00Special Price $6,335.00 -
SAVE $1,590.00LG 36,000 BTU Multi F 21.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 9 + 9 + 18Model: KUMXB361A / 3-KNUAB091A / KNUAB181AWas $7,937.00Special Price $6,347.00 -
SAVE $1,591.00LG 36,000 BTU Multi F 21.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 15 + 15Model: KUMXB361A / 2-KNMAB071A / 2-KNMAB151AWas $7,943.00Special Price $6,352.00 -
SAVE $1,593.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 9 + 9 + 9Model: KUMXB481A / KNMAB071A / 3-KNUAB091AWas $7,953.00Special Price $6,360.00 -
SAVE $1,597.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 9 + 12Model: KUMXB481A / 2-KNMAB071A / KNUAB091A / KNUAB121AWas $7,975.00Special Price $6,378.00 -
SAVE $1,608.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 9 + 9 + 9Model: KUMXB481A / 4-KNUAB091AWas $8,027.00Special Price $6,419.00 -
SAVE $1,612.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 9 + 9 + 12Model: KUMXB481A / KNMAB071A / 2-KNUAB091A / KNUAB121AWas $8,049.00Special Price $6,437.00 -
SAVE $1,616.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 7 + 15Model: KUMXB481A / 3-KNMAB071A / KNMAB151AWas $8,070.00Special Price $6,454.00 -
SAVE $1,616.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 12 + 12Model: KUMXB481A / 2-KNMAB071A / 2-KNUAB121AWas $8,071.00Special Price $6,455.00 -
SAVE $1,627.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 9 + 9 + 12Model: KUMXB481A / 3-KNUAB091A / KNUAB121AWas $8,123.00Special Price $6,496.00 -
SAVE $1,631.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 9 + 15Model: KUMXB481A / 2-KNMAB071A / KNUAB091A / KNMAB151AWas $8,144.00Special Price $6,513.00 -
SAVE $1,631.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 9 + 12 + 12Model: KUMXB481A / KNMAB071A / KNUAB091A / 2-KNUAB121AWas $8,145.00Special Price $6,514.00 -
SAVE $1,638.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 7 + 18Model: KUMXB481A / 3-KNMAB071A / KNUAB181AWas $8,181.00Special Price $6,543.00 -
SAVE $1,646.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 9 + 9 + 15Model: KUMXB481A / KNMAB071A / 2-KNUAB091A / KNMAB151AWas $8,218.00Special Price $6,572.00 -
SAVE $1,646.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 9 + 12 + 12Model: KUMXB481A / 2-KNUAB091A / 2-KNUAB121AWas $8,219.00Special Price $6,573.00 -
SAVE $1,650.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 12 + 15Model: KUMXB481A / 2-KNMAB071A / KNUAB121A / KNMAB151AWas $8,240.00Special Price $6,590.00 -
SAVE $1,650.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 12 + 12 + 12Model: KUMXB481A / KNMAB071A / 3-KNUAB121AWas $8,241.00Special Price $6,591.00 -
SAVE $1,653.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 9 + 18Model: KUMXB481A / 2-KNMAB071A / KNUAB091A / KNUAB181AWas $8,255.00Special Price $6,602.00 -
SAVE $1,655.00LG 54,000 BTU Multi F 20.6 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 7 + 7Model: KUMXB541A / 4-KNMAB071AWas $8,265.00Special Price $6,610.00 -
SAVE $1,661.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 9 + 9 + 15Model: KUMXB481A / 3-KNUAB091A / KNMAB151AWas $8,292.00Special Price $6,631.00 -
SAVE $1,665.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 9 + 12 + 15Model: KUMXB481A / KNMAB071A / KNUAB091A / KNUAB121A / KNMAB151AWas $8,314.00Special Price $6,649.00 -
SAVE $1,665.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 9 + 12 + 12 + 12Model: KUMXB481A / KNUAB091A / 3-KNUAB121AWas $8,315.00Special Price $6,650.00 -
SAVE $1,668.00LG 48,000 BTU Multi F 20.5 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 9 + 9 + 18Model: KUMXB481A / KNMAB071A / 2-KNUAB091A / KNUAB181AWas $8,329.00Special Price $6,661.00 -
SAVE $1,668.00LG 36,000 Multi F LGRED 22 SEER2 4 Zone Wall Mount Mini Split Heat Pump System - R32 | 230V - 7 + 7 + 7 + 7Model: KUMXA361A / 4-KNMAB071AWas $8,331.00Special Price $6,663.00
What is an LG 4 zone mini split system?
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LG 4 zone mini split systems are ductless heating and cooling systems that circulate treated air through four separate rooms or isolated zones in a residential or light commercial space. LG’s line of quad zone mini splits is called the Multi F series.
These systems work by connecting one outdoor condenser unit to four indoor air handling units. Each air handler, which is connected to the condenser unit by individual line sets containing charged refrigerant lines and electrical wiring, pulls warm air from the living space and replaces it with cool air. For LG mini splits with heat pump capability, this process is reversed when heating is desired instead.
What spaces are best for LG 4 zone mini split systems?
An LG quad zone mini split system is ideal for home additions, workshops, small businesses, outbuildings, or smaller whole homes ranging from 1,200 to 3,000+ square feet with 8- to 10-foot ceilings and good insulation. Some examples are:
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Small, Older Homes With No Ductwork: For smaller homes constructed before the 1960s and ‘70s, when ductwork became common, setting up an LG 4 room mini split can be a preferable solution to installing ductwork and central air, which is more difficult and costly. Farmhouses, older suburban homes, cottages, and small historic buildings are all suitable candidates for this setup.
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Small Business Shops or Offices: Small business owners can use LG 4 zone systems to heat and cool their places of business, provided they contain four separate areas. A storefront with two adjacent offices and a storeroom; a small office with a reception area, a conference room, and two shared workspaces; or a small doctor’s office suite with a reception/waiting area, office, and two examining rooms are all example use cases. You can turn off zones that aren’t in use for energy savings.
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Split-Level or Multi-Story Homes: For homes with multiple floor levels, upper-story rooms are often uncomfortably hot due to the naturally rising warm air while rooms at ground level have lower cooling demands. Using an LG quad zone mini split can give you targeted temperature control per room for a variety of room configurations, such as four upstairs bedrooms; three upstairs bedrooms and a ground-level living area; or a split-level home with a raised kitchen and dining room and lowered living room and guest room. Each bedroom can be set to its own temperature, providing personalized comfort.
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Home Additions: An LG quad zone system is a great option for home additions containing four separate spaces. Whether it’s an expanded living area and dining room plus two bedrooms or an entire mother-in-law suite, this mini split system can heat and cool added-on living spaces that your existing HVAC system isn’t designed to serve.
Environmental factors such as high ceilings, high exposure to sunlight, large open-concept layouts, and poor insulation can impact the effectiveness of mini splits, so be sure to consider these when choosing an LG mini split.
What BTU sizes are available for LG 4 zone mini split systems?
LG 4 zone mini splits are available in sizes from 30,000 BTU to 60,000 BTU, which can serve spaces from 1,250 to 3,000+ square feet:
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30,000 to 36,000 BTU (1,250 to 2,000 sq. ft.): These smaller 4 zone systems work well for compact homes, an upstairs level with four rooms, or several bedrooms and living areas. Because these applications often include frequently used residential spaces, compatible LG ThinQ controls make it easier to adjust temperatures and schedules from a smartphone. LG’s sleek wall mounted indoor units also fit well in bedrooms and other rooms where the equipment will remain visible.
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42,000 to 48,000 BTU (1,800 to 2,700 sq. ft.): This range is a strong fit for large additions, workshops, mother-in-law suites, and homes with rooms that vary in size and layout. At this capacity, the ability to mix LG wall mounted units, ceiling cassettes, and concealed duct air handlers becomes especially useful because each of the four zones may have different installation requirements. LG’s Twin-Rotary Inverter Compressor technology also helps the system adjust output as demand changes across multiple occupied spaces.
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54,000 to 60,000 BTU (2,500 to 3,000+ sq. ft.): Higher-capacity systems are designed for larger applications such as duplexes, multi-unit residences, storefronts, and medium-sized office suites. These buildings often place heavier and more varied demands on the system, making LGRED° Heat a valuable option in colder climates with 100% rated heating capacity at 5°F and continued operation down to -13°F. The larger capacity also provides more flexibility for distributing heating and cooling among four zones with different room sizes, occupancy levels, and sun exposure.
Choosing the correct BTU capacity to fit your space is crucial to ensure your LG mini split runs efficiently and has a long life. A system that is too small will struggle to maintain target temperature in each zone, running constantly and causing excessive wear on the equipment. Installing a mini split that is too powerful will also cause problems, including frequent short-cycling and poor dehumidification of the space.
How much do LG 4 zone mini split systems cost?
The cost of an LG quad zone mini split ranges between $8,500 and $14,000+, including professional installation by a certified HVAC contractor. A sample breakdown of this cost includes:
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Equipment Cost: An LG 4 zone mini split system typically costs from $5,200 to $8,500. This includes one outdoor condenser unit, four air handling units, and depending on the retailer, line sets to connect each air handler to the condenser.
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Installation and Labor Cost: Hiring a licensed HVAC contractor to install your LG quad zone mini split will likely cost between $3,000 and $6,000+, depending on the complexity of your layout and system setup.
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Operation and Maintenance Cost: Depending on your local climate, monthly operation costs for an LG 4 zone system generally run from $60 to $240 during cooling seasons and $100 to $350 during heating seasons. If you live in an area with exceptionally cold winters, opting for a mini split with LGRED° heating technology could help you maintain consistently lower heating costs.
In addition to the major cost categories above, you may also need to purchase critical accessories for your mini split, such as line set covers, mounting equipment or a mounting pad, and electrical connection equipment. You can expect to spend between $500 and $1,300 on these if they are not included in your installation cost.
Can I install an LG 4 zone mini split system myself?
LG quad zone mini splits can only be installed by a certified HVAC contractor, so there is no DIY-compatible option:
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DIY Installation: LG does not manufacture a 4 zone mini split system that can be self-installed by homeowners. This is due to legal restrictions on non-licensed consumers handling refrigerants.
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Professional Installation: Installing this type of system requires professional installation by a licensed HVAC contractor. Homeowners can also choose an LG Pro Dealer, whose technicians have access to ongoing LG training and service tools. Qualified, registered LG systems installed by an LG Pro Dealer may be eligible for a cumulative 12-year limited parts and compressor warranty, compared with shorter standard coverage. Warranty eligibility varies by product and does not include labor.
Before having your mini split installed, you should ensure you’re abiding by all local and municipal building codes. This involves obtaining the necessary permits and following National Electrical Code stipulations. Your contractor can assist you with this.
What indoor unit styles are available for LG 4 zone mini splits?
You can choose from five different air handler types for your LG quad zone system, including wall mount, ceiling cassette, slim (one-way) ceiling cassette, concealed duct, or floor mount:
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Wall Mounted: This type of air handler is mounted high on the wall and is the most common type used in mini split systems. LG makes a variety of wall mount styles, including the LG ARTCOOL series, designed to seamlessly blend in with your home’s decor.
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Ceiling Cassette: This air handler is recessed into the ceiling and distributes conditioned air in four directions through a series of louvers. It’s a great choice for large, open spaces where even air distribution is desired.
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Slim Ceiling Cassette: This style is similar to the standard ceiling cassette but is a lower profile option, as it’s narrow enough to place between standard ceiling joists. It directs air in one direction and is a good LG-specific option for bedrooms, offices, and narrow spaces where a four-way cassette may be unnecessary.
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Concealed Duct: Mounted within drop ceilings or behind walls, this air handler is ultra discreet, with only a decorative grille visible to deliver conditioned air through short, flexible duct runs. LG concealed duct units are useful when you want the zoned control of a Multi F system without a visible indoor air handler.
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Floor Mounted: Placed just above floor level or low on a wall, these air handling units resemble radiators and are suitable for spaces without enough wall space to accommodate wall mounted units. They are especially useful beneath windows, in rooms with sloped ceilings, or where there is not enough open wall or ceiling space for another unit style; select LG models also include Jet Cool/Jet Heat and Smart Diagnosis features.
LG air handlers are intentionally designed with a sleek, stylish appearance meant to enhance the aesthetic of your home’s interior, and most styles can be conveniently controlled through the LG ThinQ app on your smartphone or mobile device.
What power requirements do LG 4 zone mini split systems need?
Depending on the BTU capacity of your LG quad zone system, breaker size, wire gauge size, and branch box necessity may vary, but in general, these systems need:
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Circuit Voltage: LG 4 zone mini splits require a dedicated 208/230V, single-phase, 60 Hz electrical circuit. This is standard for 4 zone mini splits, which will not operate safely on a standard 110V household circuit.
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Amperage/Breaker Size: Depending on the BTU capacity of your system, the electrical connection requires a double-pole breaker with either 20- to 30-amp capacity or 30- to 40-amp capacity.
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Wire Gauge: LG 4 zone systems typically need 10 or 12 AWG stranded copper wiring for the main power supply connection, as well as 14 to 18 AWG copper wiring to connect communication lines between the indoor air handlers and outdoor condenser unit.
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Disconnect Box: All LG mini splits must have an outdoor-grade disconnect box located within sight of the condenser unit. These are usually weatherproof to withstand climate changes.
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Branch Box: This depends on the LG condenser model, as some LG condenser units require a branch box, and some do not. A branch box connects the outdoor condenser to multiple indoor units and helps distribute refrigerant between the system’s different zones. Verify this information before purchasing your system.
All LG mini split systems have a Minimum Circuit Ampacity (MCA) and Maximum Overcurrent Protection (MOP) stated on the condenser unit’s nameplate, as well as other critical information regarding electrical requirements. You will need assistance from a licensed electrician to set up the electrical connections.
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FAQs about LG 4 zone mini split systems
Yes, these mini splits are highly energy efficient, with Seasonal Energy Efficiency Ratio 2 (SEER2) ratings between 20 and 22, much higher than the standard 14 SEER2 of most central air conditioning systems. LG’s patented dual inverter compressor ensures that the system rarely operates on maximum power, instead running on low to medium capacity to maintain consistent temperatures.
These systems are manufactured by LG Air Conditioning Solutions, a division of LG Electronics, based in Seoul, South Korea. The LG brand is known for products with a unique balance of style, convenience, and affordability. LG Air Conditioning Solutions’ U.S. headquarters is located in Alpharetta, Georgia.
No, LG does not produce quad zone mini splits that can be installed by homeowners. You must contract a licensed HVAC professional to install this type of system, as they are trained and certified in handling refrigerants.
LG mini splits include a 10-year limited warranty on parts and the compressor, as long as a licensed contractor installs the system and the product is registered on the manufacturer’s website within 60 days of installation. Customers who choose LG Pro Dealer contractors can extend their warranty to 12 years.
Most LG 4 zone mini splits are equipped with a heat pump and can provide both heating and cooling. In cooling mode, the system removes heat from the indoor spaces and transfers it outside; in heating mode, it reverses the refrigerant cycle and moves heat from the outdoor air into the home. Some LG condensers are cooling-only, so buyers should verify the specific model before purchasing if year-round heating is needed.
LG quad zone mini split systems typically last 15 to 20 years, and sometimes up to 25 years, if they are regularly maintained. To ensure maximum life span, have your mini split serviced annually by a professional HVAC technician and check the condenser unit and air handlers once every season, clearing away any leaves, dander, or debris that may be clogging the vents.
Yes, these systems run at noise levels as low as 21 dB, which is about the same as a soft whisper. LG air handlers typically operate between 21 and 47 dB, while the condenser units run slightly louder around 55 dB, the noise equivalent of moderate rainfall.
Yes, these mini splits are designed to dehumidify with or without air conditioning. In mild weather, LG mini splits can be set to “Dry Mode,” which runs the compressor and fan at low speeds to remove humidity from the air without over-cooling your living space.
It’s recommended to check your condenser and air handling units every 4 to 6 weeks and remove any debris that may have accumulated in the vents or grates. Additionally, having a certified HVAC contractor do annual maintenance on your mini split will help maximize your system’s lifespan.
LG 4 zone mini split systems are intended to provide heating and cooling for four distinct zones, which usually equates to four separate rooms. However, it’s possible to use multiple air handlers for a large, open space, such as an expansive living room and dining area. An LG quad zone system should not be used for more than 4 rooms.