How to Pick the Perfect Mitsubishi Mini-Split Condenser
If you're struggling to keep your home or office comfortable, you are not alone...
Local Pickup FAQ's
On Sale
Hover to zoom
1 of 5
LG Multi-Position LGRED° Air Handler Mini Split Heat Pump System - Single-Zone - 42k BTU - 19.0 SEER2 - R-32
Model:
KSSLA421A
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
8
These accessories are required to properly setup/install this product.
$20.00
In-Stock
Model: UC2448-3
$77.00
In-Stock
Model: MLS385812-15
Length (ft)
$184.00
In-Stock
Model: 20650
$19.00
In-Stock
Model: ICM517A
$70.00
In-Stock
$13.94
In-Stock
$105.62
In-Stock
Optional Accessories
13
Model: ASP-MW-UNI
$296.32
In-Stock
Model: 84099
$5.30
In-Stock
Model: ZRTBS01
$57.00
In-Stock
Model: PDRYCB100
$104.00
Backordered
Model: PWFMDD200
$99.00
In-Stock
Model: PZCWRC1
$29.00
In-Stock
Model: PREMTBVC3
$269.00
Only 2 In-Stock
$320.00
In-Stock
Model: PQSH1200
$228.00
In-Stock
Model: PREMTBVC2
$249.00
In-Stock
Model: PREMTC00U
$167.00
In-Stock
Features
- Enhanced Connectivity
- LG's new R-32 mini split units require a 5-conductor cable (Not Included) instead of the standard 4-conductor, improving communication reliability and enabling a new leak detection feature.
- Inverter Technology
- LG's heat pump systems are designed with efficient inverter technology. An electronic expansion valve and a variable speed compressor carefully regulate the refrigerant flow, reducing energy consumption and allowing for consistent, accurate temperatures.
- Quiet Design
- The KNSLA421A indoor unit features a cross flow fan that restricts the pressure of air flow and lowers sound levels. Both the outdoor and indoor units enjoy reduced electrical and mechanical sound thanks to their brushless direct current fan motors.
- Integrated Base Pan Heater
- The KUSXA421A Outdoor Condenser features a factory-installed base pan heater in the drain pan. This prevents condensate from freezing and damaging the unit in frigid climates.
- Dehumidify
- LG's indoor units include a dehumidifying operation mode. In this mode, the unit's internal sensors monitor temperature and modify the set point and fan speed to remove moisture from the air.
- Multi-Position
- The KNSLA421A can be installed in either a vertical or a horizontal orientation, making it a versatile solution for all manners of duct systems.
- Sleep Mode
- With the Sleep Mode and Timer functions, you can set the indoor unit to save energy at night. Sleep Mode will incrementally adjust temperature for an hour before the Timer function automatically deactivates the unit.
- Gold Fin Protection
- To ensure the reliability and longevity of the KUSXA421A's heat exchanger, LG employs a Gold Fin coating that prevents corrosion and improves durability.
- Line Set - This double insulated tubing transfers refrigerant efficiently between your outdoor condenser and indoor units.
- Drain Tubing - Drain tubing facilitates the reliable and effective removal of condensate from your system. It connects your indoor units to drain locations of your choosing.
- Disconnect Box & Electrical Whip Kit - The Disconnect Box & Whip Kit provides a safe and simple way to connect your outdoor condenser to your fuse box.
- Connecting Wire - LG's new R-32 mini split units require a 14 AWG 5-conductor cable. This cable provides power to your indoor units from your outdoor condenser.
- Outdoor Condenser Plastic Pad or Wall Bracket - We recommend outdoor condensers should not be placed directly on the ground. An outdoor condenser pad or wall bracket will provide a stable way to mount your condenser free from obstructions and debris. Adding these accessories to your order will provide a complete, ready-to-install mini split system. All Mini Split Systems require one Primary Mini Split Installation Kit.
LG continues to demonstrate global leadership in innovation and technology with their advancements in home comfort solutions. The LGRED° Heat ductless heat pump system boasts superior heating performance in extreme cold weather climates. The KSSLA421A is a multi-position air handling system that can be installed with nearly any pre-existing duct work. LG's air handlers are designed to provide powerful heating and cooling for the larger rooms in your home. Capable of managing high air speeds and volumes effortlessly, the KSSLA421A is an impressive solution to your home's heating and cooling needs.
Product Includes
Product Note
This product requires the following accessories for installation:
Specifications
Product Includes
KSSLA421A
General Information
Type
Ducted Vertical Air Handler
Product Line
LGRED Heat
Product Category
Mini Split Heat Pump System
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Heating and Cooling
Number of Zones
Number of Zones
A zone is a room or area within a building that has its own temperature control.
1
Refrigerant Type
R-32
Indoor Unit Size(s)
Indoor Unit Size(s)
Mini split systems can have one or more indoor units connected to a single outdoor unit. Indoor Unit Size(s) specifies what indoor unit sizes are used in a system. We have combined 6k and 7k indoor units to enhance searchability.
42
Outdoor Unit Size
42000 BTU
DOE Regional Compliance
DOE Regional Compliance
In 2015, the US Department of Energy broke the country into three regions - North, Southeast, and Southwest - and set legal standards for energy efficiency within each region. Learn More
Nationwide
Line Set Size
3/8" x 5/8"
Performance
Cooling BTU
42000
Cooling Capacity
42000 BTU
Heating Capacity
46000 BTU
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
41 dB
Low Ambient Heating
Yes
Minimum Outdoor Temperature for Heating
Minimum Outdoor Temperature for Heating
This is the lowest rated outdoor temperature for heating operation. Because heat pumps rely on heat available in outdoor air, the amount of heat they are able to supply decreases with outdoor temperatures. Learn More
-13 F
Minimum Outdoor Temperature for Cooling
5 F
SEER2
SEER2
The U.S Department of Energy has raised the minimum rating requirements starting in 2023 that include updated testing conditions and metrics to better reflect real-world conditions. SEER2 (Seasonal Energy Efficiency Ratio) is a measurement of cooling efficiency over a typical cooling season. It is useful for comparing energy efficiency of cooling systems. The higher the SEER2, the more energy efficient the system.
19.0
EER2
EER2
The U.S Department of Energy has raised the minimum rating requirements starting in 2023 that include updated testing conditions and metrics to better reflect real-world conditions. EER2 (Energy Efficiency Ratio) is a measurement of cooling efficiency under fixed conditions. It is useful for comparing units that will operate consistently under one set of conditions (e.g. server room). The higher the EER2, the more efficient the system.
12.5
HSPF2
HSPF2
The U.S Department of Energy has raised the minimum rating requirements starting in 2023 that include updated testing conditions and metrics to better reflect real-world conditions. HSPF2 (Heating Seasonal Performance Factor) is a measure of heating efficiency for heat pumps. It is useful for comparing energy efficiency of heat pumps. The higher the HSPF2, the more efficient the system.
9.8
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Minimum Circuit Ampacity
32 Amps
Recommended Breaker Size
40 Amps
Dimensions
Suction Connection Size
5/8 Inch
Liquid Connection Size
3/8 Inch
Product Weight
359.4 Pounds
Shipping Weight
392.4 Pounds
Certifications
Energy Star Listed
Yes
CSA Listed
Yes
AHRI Certified
Yes
KUSXA421A
General Information
Type
Outdoor Condenser
Product Line
LGRED Heat
Product Category
Mini Split System Components
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Heating and Cooling
Maximum Number of Zones
1
Multi-Zone Compatible
No
Refrigerant Type
R-32
Installation Location
Outdoor
Base Pan Heater Included
Yes
Performance
Cooling BTU
42000
Cooling Capacity
42000 BTU
Heating Capacity
48000 BTU
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
56 dB
Low Ambient Heating
Yes
Minimum Outdoor Temperature for Heating
Minimum Outdoor Temperature for Heating
This is the lowest rated outdoor temperature for heating operation. Because heat pumps rely on heat available in outdoor air, the amount of heat they are able to supply decreases with outdoor temperatures. Learn More
-13 F
Minimum Outdoor Temperature for Cooling
5 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Minimum Circuit Ampacity
32 Amps
Recommended Breaker Size
40 Amps
Dimensions
Maximum Line Length
246 Feet
Gas Connection Size
5/8 Inch
Liquid Connection Size
3/8 Inch
Product Height
54 17/48 Inches
Product Width
37 19/48 Inches
Product Depth
13 Inches
Product Weight
217.6 Pounds
Shipping Weight
238.1 Pounds
Certifications
Energy Star Listed
Yes
CSA Listed
Yes
AHRI Certified
Yes
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Compressor Warranty
7 Years
KNSLB421A
General Information
Type
Ducted Vertical Air Handler
Product Category
Mini Split System Components
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Heating and Cooling
Multi-Zone Compatible
No
Refrigerant Type
R-32
Indoor Unit Size(s)
Indoor Unit Size(s)
Mini split systems can have one or more indoor units connected to a single outdoor unit. Indoor Unit Size(s) specifies what indoor unit sizes are used in a system. We have combined 6k and 7k indoor units to enhance searchability.
42
Installation Location
Indoor
Performance
Cooling BTU
42000
Cooling Capacity
42000 BTU
Heating Capacity
46000 BTU
Moisture Removal
7.9 Pints/Hour
Maximum Air Flow
1225 CFM
Minimum Air Flow
1000 CFM
Minimum Sound Level
36 dB
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
41 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
5/8 Inch
Liquid Connection Size
3/8 Inch
Product Height
55 7/8 Inches
Product Width
21 Inches
Product Depth
21 3/8 Inches
Product Weight
146 Pounds
Shipping Weight
160 Pounds
Certifications
CSA Listed
Yes
AHRI Certified
Yes
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
PREMTC00U
General Information
Type
Mini Split Controller
Product Category
Mini Split Accessories
Maximum Number of Zones
16
Power Source
Hard-Wired
Dimensions
Product Height
4 3/4 Inches
Product Width
5/8 Inch
Product Length
2 3/4 Inches
Product Weight
0.18 Pounds
Overview
Product Category
Mini Split Accessories
PZCWRC1
General Information
Type
Wire Kit
Product Category
Mini Split Accessories
Dimensions
Product Length
33 Feet
Product Weight
0.25 Pounds
Certifications
Country of Origin
Korea
Overview
Product Category
Mini Split Accessories
Reviews
LG KSSLA421A Reviews & Ratings
Be the First to Write a Review
Do you own this product?
Please share your insights with fellow shoppers.
Please share your insights with fellow shoppers.
How-To Articles
What You Should Know About Mini-Split Wiring
Although they are easier to install than central air conditioning systems, mini...
How to Pick the Perfect Mini Split Wall Mounted Indoor Unit
Wall-mounted units are the most commonly found, most affordable option for indo...
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
LG Multi-Position LGRED° Air Handler Mini Split Heat Pump System - Single-Zone - 42k BTU - 19.0 SEER2 - R-32
Customer Review Images
