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Mitsubishi Floor Mounted 3-Zone H2i System - 42,000 BTU Outdoor - 12k + 18k + 18k Indoor - 21.5 SEER2
Model:
MXZ-SM42NAMHZ2 MFZ-KJ12NA 2-MFZ-KJ18NA
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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.
- Smart Set
- Mitsubishi's Smart Set function allows you to save a cooling profile and a heating profile, each consisting of a temperature, a fan speed, and an airflow direction. These profiles can be activated easily with a press of the Smart Set button on the remote.
- Econo Cool Mode
- By slowly adjusting the cooling set point and swinging the horizontal vanes, the MFZ-KJ can improve the efficiency of cooling operations without compromising the comfort provided.
- Powerful Mode
- The powerful setting on the MFZ-KJ makes it easy to get your zone to the perfect temperature quickly. When it is activated, the unit temporarily increases refrigerant flow and fan speed to provide quick comfort through rapid heating or cooling.
- Multiple Vane Control Options
- Auto mode selects the best vane position based on operating mode, and the Swing modes cycle through all positions for maximum coverage.
- Multiple Airflow Options
- When 2 Flow is selected the unit will blow air from the top and front of the unit. When 1 Flow is selected, air only blows from the top of the unit.
- 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 your comfort and reduces the chance of mold growth and other property damage in the room.
- Hot-Start
- Mitsubishi's Hot-Start technology prevents cold drafts by delaying fan operation until the heat exchanger has warmed up.
- H2i Technology
- H2i Hyper Heat performance offers 100% heating capacity at 5 degrees and 75% heating capacity at -13 degrees Fahrenheit.
- Integrated Base Pan Heater
- Factory-installed base pan heater in the drain pan. This prevents condensate from freezing and damaging the unit in frigid climates.
- Recommended line set sizes for indoor unit connectivity:
- MFZ-KJ12NA: 1/4" x 3/8" Line Set
- MFZ-KJ18NA: 1/4" x 1/2" Line Set (Qty 2)
- Recommended line set sizes for branch box connectivity:
- MXZ-SM42NAMHZ2: 3/8" x 5/8" Line Set
- (1) Mitsubishi - 42k BTU - M-Series Smart Multi H2i Outdoor Condenser - For 2-5 Zones (MXZ-SM42NAMHZ2)
- (2) Mitsubishi M-Series 18k BTU Floor Mounted Unit - For Multi or Single-Zone (MFZ-KJ18NA-U1)
- (1) Mitsubishi M-Series 12k BTU Floor Mounted Unit - For Multi or Single-Zone (MFZ-KJ12NA-U1)
- (1) Mitsubishi M-Series - 3 Ports - Branch Box (PAC-MKA33BC)
- (2) Mitsubishi 3/8" Condenser x 1/2" Line Set - Port Adapter - Flare Connections (MAC-A454JP-E)
- 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 - This durable, insulated wire 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. You will need a Secondary Installation Kit for each additional indoor unit.
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. Mitsubishi's floor mounted indoor units are a great alternative for rooms where you don't have the ceiling height or wall space to allow for a wall mounted unit. 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 three included wireless remote controllers, this system is the perfect combination of convenience and comfort for any heating or cooling application.
Product Includes
Product Note
This product requires the following accessories for installation:
Specifications
Product Includes
- (1) Mitsubishi - 42k BTU - M-Series Smart Multi H2i Outdoor Condenser - For 2-5 Zones (MXZ-SM42NAMHZ2)
- (2) Mitsubishi M-Series 18k BTU Floor Mounted Unit - For Multi or Single-Zone (MFZ-KJ18NA-U1)
- (1) Mitsubishi M-Series 12k BTU Floor Mounted Unit - For Multi or Single-Zone (MFZ-KJ12NA-U1)
- (1) Mitsubishi M-Series - 3 Ports - Branch Box (PAC-MKA33BC)
- (2) Mitsubishi 3/8" Condenser x 1/2" Line Set - Port Adapter - Flare Connections (MAC-A454JP-E)
MXZ-SM42NAMHZ2 MFZ-KJ12NA 2-MFZ-KJ18NA
General Information
Type
Floor Mounted
Product Line
M-Series H2i
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.
3
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 + 18 + 18
Base Pan Heater Included
Yes
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
Cooling Power Input
3135 Watts
Heating Power Input
3435 Watts
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
23 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.
21.5
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.
13.4
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.
11.1
Dimensions
Product Weight
377 Pounds
Shipping Weight
431 Pounds
Certifications
ETL Listed
Yes
Energy Star Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
213248834
MXZ-SM42NAMHZ2
General Information
Type
Outdoor Condenser
Product Line
M-Series H2i
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
Yes
Outdoor Unit Size
42000 BTU
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
54 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
23 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Minimum Circuit Ampacity
42 Amps
Recommended Breaker Size
45 Amps
Dimensions
Maximum Line Length
492 Feet
Gas Connection Size
5/8 Inch
Liquid Connection Size
3/8 Inch
Product Height
52 11/16 Inches
Product Width
41 17/48 Inches
Product Depth
13 Inches
Product Weight
278 Pounds
Shipping Weight
302 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
MFZ-KJ18NA-U1
General Information
Type
Floor Mounted
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
Multi-Zone Compatible
Yes
Refrigerant Type
R-410A
Remote Control
Wireless
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
Performance
Cooling BTU
18000
Cooling Capacity
18000 BTU
Maximum Air Flow
470 CFM
Minimum Air Flow
168 CFM
Minimum Sound Level
28 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
49 dB
Electrical Data
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
1/2 Inch
Liquid Connection Size
1/4 Inch
Drain Outlet Diameter
5/8 Inch
Product Height
23 5/8 Inches
Product Width
29 25/48 Inches
Product Depth
8 23/48 Inches
Product Weight
33 Pounds
Shipping Height
27 3/4 Inches
Shipping Width
32 3/4 Inches
Shipping Depth
12 Inches
Shipping Weight
43 Pounds
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
Overview
Product Category
Mini Split System Components
MFZ-KJ12NA-U1
General Information
Type
Floor Mounted
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
Multi-Zone Compatible
Yes
Refrigerant Type
R-410A
Remote Control
Wireless
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
Performance
Cooling BTU
12000
Cooling Capacity
12000 BTU
Maximum Air Flow
343 CFM
Minimum Air Flow
117 CFM
Minimum Sound Level
21 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
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/8 Inch
Liquid Connection Size
1/4 Inch
Drain Outlet Diameter
5/8 Inch
Product Height
23 5/8 Inches
Product Width
29 25/48 Inches
Product Depth
8 23/48 Inches
Product Weight
33 Pounds
Shipping Height
27 3/4 Inches
Shipping Width
32 3/4 Inches
Shipping Depth
12 Inches
Shipping Weight
43 Pounds
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
Overview
Product Category
Mini Split System Components
PAC-MKA33BC
General Information
Type
Branch Box
Product Line
M-Series
Product Category
Mini Split Accessories
Ports Quantity
3
Electrical Data
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
5/8 Inch
Suction Connection Size
3/8 Inch
Line Set A Liquid Connection
1/4 Inch
Line Set A Gas Connection
3/8 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
Product Height
6 11/16 Inches
Product Width
17 35/48 Inches
Product Depth
11 1/48 Inches
Product Weight
15 Pounds
Warranty Information
Parts Warranty Days
90
MAC-A454JP-E
General Information
Type
Port Adapter
Product Category
Mini Split Accessories
Connection Type
Flared
Dimensions
End 1 Connection Size
3/8 Inch
End 2 Connection Size
1/2 Inch
Product Weight
0.5 Pounds
Warranty Information
Parts Warranty Days
90
Overview
Product Category
Mini Split Accessories
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Mitsubishi Floor Mounted 3-Zone H2i System - 42,000 BTU Outdoor - 12k + 18k + 18k Indoor - 21.5 SEER2
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