How to Pick the Perfect Mini Split Floor Mounted Indoor Unit
If you are installing a mini split system but you don't have enough clearance f...
Local Pickup FAQ's
Hover to zoom
1 Of 5
Mitsubishi One-Way Ceiling Cassette 4-Zone System - 42,000 BTU Outdoor - 6k + 6k + 12k + 18k Indoor - 19.7 SEER2
Model:
MXZ-5C42NA4 2-MLZ-KY06 MLZ-KP12 MLZ-KP18
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
Features
- Precision Temperature Control Technology
- The outdoor condenser is equipped with inverter technology and an electronic linear expansion valve. These components improve temperature accuracy and system efficiency through precise adjustments of both compressor speed and refrigerant flow.
- Hot-Start
- Mitsubishi's hot-start technology prevents cold drafts by delaying fan operation until the heat exchanger has warmed up.
- Vane Control
- Optimal air flow can be achieved with the MLZ thanks to the vane control option. This function provides access to an auto mode and a swing mode.
- Condensate Removal System
- The MLZ contains an internal drain mechanism capable of lifting condensate 19-11/16". This simplifies installation and prevents condensate overflow, which can damage or destroy your property.
- Serviceability
- The MLZ is designed to fit between standard 16" joists and be serviced from below, making installation and maintenance easier than ever.
- Dehumidification
- When the indoor unit runs in dry mode, the coil's temperature stays just below the dew point of the return air, removing unwanted moisture. This improves comfort and reduces the chance of mold growth and other property damage in the conditioned space.
- Recommended Line Set:
- MLZ-KY06NA: 1/4" x 3/8" Line Set (Qty 2)
- MLZ-KP12NA2: 1/4" x 3/8" Line Set
- MLZ-KP18NA2: 1/4" x 1/2" Line Set
- (1) Mitsubishi - 42k BTU - M-Series Outdoor Condenser - For 2-5 Zones (MXZ-5C42NA4)
- (1) Mitsubishi - 18k BTU - M-Series One-Way Ceiling Cassette without Grille - For Multi or Single-Zone (MLZ-KP18NA2)
- (1) Mitsubishi - 12k BTU - M-Series One-Way Ceiling Cassette without Grille - For Multi or Single-Zone (MLZ-KP12NA2)
- (2) Mitsubishi - 6k BTU - EZ Fit® One-Way Ceiling Cassette without Grille - For Multi-Zone (MLZ-KY06NA-NG)
- (2) Mitsubishi MLP-448WU Ceiling Cassette Grille For Mitsubishi MLZ-KY Mini Split Units (MLP-448WU)
- (2) Mitsubishi MLP-444W Ceiling Cassette Grille For Mitsubishi MLZ-KP Mini Split Units (MLP-444W)
- Line Set - This double insulated tubing transfers refrigerant efficiently between your outdoor condenser and indoor units.
- 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 - This durable, insulated wire provides power to your indoor units from your outdoor condenser.
- Base Pan Heater - The base pan heater prevents ice from building up on the outdoor unit. Excessive ice build will lead to performance issues and could damage your unit.
- 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.
For over 50 years, Mitsubishi has remained at the forefront of the mini split industry thanks to their dedication to providing efficient, user-friendly comfort solutions. This is a four-zone mini split system designed to give you individual control over the temperature in multiple rooms. An efficient MXZ-5C42NA4 outdoor condenser, built with advanced technology, is combined with quiet ceiling cassette MLZ indoor units and four wireless remote controllers for the perfect marriage of convenience and comfort. An MXZ multi-room system is an excellent choice for supplementing capacity to a current system, conditioning newly furnished spaces, or new additions and replacing a system within a home. With multiple operating modes and multiple fan speeds, this is a system that fits the needs of nearly any home.
Product Includes
Product Note
This product requires the following accessories for installation:
Specifications
Product Includes
- (1) Mitsubishi - 42k BTU - M-Series Outdoor Condenser - For 2-5 Zones (MXZ-5C42NA4)
- (1) Mitsubishi - 18k BTU - M-Series One-Way Ceiling Cassette without Grille - For Multi or Single-Zone (MLZ-KP18NA2)
- (1) Mitsubishi - 12k BTU - M-Series One-Way Ceiling Cassette without Grille - For Multi or Single-Zone (MLZ-KP12NA2)
- (2) Mitsubishi - 6k BTU - EZ Fit® One-Way Ceiling Cassette without Grille - For Multi-Zone (MLZ-KY06NA-NG)
- (2) Mitsubishi MLP-448WU Ceiling Cassette Grille For Mitsubishi MLZ-KY Mini Split Units (MLP-448WU)
- (2) Mitsubishi MLP-444W Ceiling Cassette Grille For Mitsubishi MLZ-KP Mini Split Units (MLP-444W)
MXZ-5C42NA4 2-MLZ-KY06 MLZ-KP12 MLZ-KP18
General Information
Type
Ceiling Cassette
Product Line
M-Series
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.
4
Refrigerant Type
R-410A
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.
7 + 7 + 12 + 18
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
Performance
Low Ambient Heating
No
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
5 F
Minimum Outdoor Temperature for Cooling
14 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.
19.7
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.
9.2
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.
9.2
Electrical Data
Voltage
208/230 Volts
Dimensions
Product Weight
305.6 Pounds
Shipping Weight
354.4 Pounds
Certifications
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
212925465
MXZ-5C42NA4
General Information
Type
Outdoor Condenser
Product Line
M-Series
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
5
Multi-Zone Compatible
Yes
Refrigerant Type
R-410A
Installation Location
Outdoor
Base Pan Heater Included
No
Performance
Cooling BTU
42000
Cooling Capacity
43000 BTU
Heating Capacity
53600 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
58 dB
Low Ambient Heating
No
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
5 F
Minimum Outdoor Temperature for Cooling
14 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Minimum Circuit Ampacity
32.5 Amps
Recommended Breaker Size
40 Amps
Dimensions
Maximum Line Length
262 Feet
Line Set A Liquid Connection
1/4 Inch
Line Set A Gas Connection
1/2 Inch
Line Set B Liquid Connection
1/4 Inch
Line Set B Gas Connection
3/8 Inch
Line Set C Liquid Connection
1/4 Inch
Line Set C Gas Connection
3/8 Inch
Line Set D Liquid Connection
1/4 Inch
Line Set D Gas Connection
3/8 Inch
Line Set E Liquid Connection
1/4 Inch
Line Set E Gas Connection
3/8 Inch
Product Height
41 13/48 Inches
Product Width
37 19/48 Inches
Product Depth
13 Inches
Product Weight
189 Pounds
Shipping Height
48 7/16 Inches
Shipping Width
41 3/8 Inches
Shipping Depth
17 3/8 Inches
Shipping Weight
218 Pounds
Certifications
ETL Listed
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
MLZ-KP18NA2
General Information
Type
Ceiling Cassette
Product Line
M-Series
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
Yes
Refrigerant Type
R-410A
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.
18
Installation Location
Indoor
Grille
Not Included
Required Grille Model
MLP-444W
Performance
Cooling BTU
18000
Cooling Capacity
18000 BTU
Maximum Air Flow
417 CFM
Minimum Air Flow
212 CFM
Minimum Sound Level
26 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
48 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
1/2 Inch
Liquid Connection Size
1/4 Inch
Product Height
7 5/16 Inches
Product Width
43 3/8 Inches
Product Depth
14 3/16 Inches
Product Weight
35 Pounds
Grille Depth
15/16 Inch
Grille Width
16 11/16 Inches
Grille Length
47 1/4 Inches
Certifications
ETL 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
MLZ-KP12NA2
General Information
Type
Ceiling Cassette
Product Line
M-Series
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
Yes
Refrigerant Type
R-410A
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.
12
Installation Location
Indoor
Grille
Not Included
Required Grille Model
MLP-444W
Performance
Cooling BTU
12000
Cooling Capacity
12000 BTU
Maximum Air Flow
350 CFM
Minimum Air Flow
212 CFM
Minimum Sound Level
26 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
40 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/8 Inch
Liquid Connection Size
1/4 Inch
Product Height
7 5/16 Inches
Product Width
43 3/8 Inches
Product Depth
14 3/16 Inches
Product Weight
34 Pounds
Grille Depth
15/16 Inch
Grille Width
16 11/16 Inches
Grille Length
47 1/4 Inches
Certifications
ETL 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
MLZ-KY06NA-NG
General Information
Type
Ceiling Cassette
Product Line
M-Series
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
Yes
Refrigerant Type
R-410A
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.
6
Installation Location
Indoor
Grille
Not Included
Required Grille Model
MLP-448WU
Performance
Cooling BTU
6000
Cooling Capacity
6000 BTU
Maximum Air Flow
212 CFM
Minimum Air Flow
152 CFM
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/8 Inch
Liquid Connection Size
1/4 Inch
Product Height
7 11/16 Inches
Product Width
33 3/16 Inches
Product Depth
11 7/8 Inches
Product Weight
24.3 Pounds
Grille Depth
1 3/8 Inches
Grille Width
14 9/16 Inches
Grille Length
36 1/16 Inches
Certifications
ETL 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
MLP-448WU
General Information
Type
Grille
Product Line
M-Series
Dimensions
Product Weight
5 Pounds
Grille Depth
1 3/8 Inches
Grille Width
14 9/16 Inches
Grille Length
36 1/16 Inches
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
MLP-444W
General Information
Type
Grille
Product Line
M-Series
Dimensions
Product Weight
5 Pounds
Grille Depth
15/16 Inch
Grille Width
16 11/16 Inches
Grille Length
47 1/4 Inches
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
Reviews
Mitsubishi MXZ-5C42NA4 2-MLZ-KY06 MLZ-KP12 MLZ-KP18 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.
Product Q&A
Be the First to Ask A Question
Answered by Ken, the eComfort Product Expert
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 Mitsubishi Mini-Split Condenser
If you're struggling to keep your home or office comfortable, you are not alone...
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts
Manuals
MXZ-5C42NA4
MLZ-KP12NA2
MLZ-KY06NA-NG
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
Mitsubishi One-Way Ceiling Cassette 4-Zone System - 42,000 BTU Outdoor - 6k + 6k + 12k + 18k Indoor - 19.7 SEER2
Customer Review Images
