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Mitsubishi Wall Mounted 4-Zone H2i System - 42,000 BTU Outdoor - 12k + 12k + 12k + 15k Indoor - 19.0 SEER

Mitsubishi Wall Mounted 4-Zone H2i System - 42,000 BTU Outdoor - 12k + 12k + 12k + 15k Indoor - 19.0 SEER
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Model: M4L42W12121215
(Based on expert analysis, manufacturer ratings and customer reviews)
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
Number of Reviews (4)
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$7,680.00
$7,065.60
In-Stock
Ships Wednesday, Oct 24th
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Free Lift Gate Service - 
Outdoor Unit BTU/h
Indoor Units Sizes 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. For example (9k + 12k) means the system includes a 9k BTU unit and a 12k BTU unit.
Hyper-Heating
Add-Ons
 
In-Stock
Ships Wednesday, Oct 24th
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Free Freight
Lift Gate Services
Lift Gate Service
*We currently CANNOT ship this product to Canada or any destination outside of the United States
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  • Product Description
  • 4
    Reviews
  • 3
    Product Q&A
  • Recommended Accessories
  • How-To Articles
  • Manuals
Product Description
+
Features
Features
    Mitsubishi's dedication to new technology means that multi-zone mini split systems are now a year-round comfort solution for homes in freezing climates. This low ambient system uses a hyper-heating H2i MXZ-5C42NAHZ outdoor condenser to provide efficient cooling and subzero heating through four advanced MSZ-FH wall mounted indoor units. These indoor units feature Mitsubishi's i-See sensor, which automatically detects where heating or cooling is needed. Four wireless remote controllers guarantee convenient comfort by allowing you to control the temperature in individual rooms. With multiple operating modes, multiple fan speeds, and multiple airflow directions, this is a system that fits the needs of nearly any home.
  • H2i Technology
  • Low and negative ambient temperatures don't bother the MXZ-5C42NAHZ. It is rated for 100% heating capacity at 5 degrees F and continues to provide heating in outdoor conditions as low as -13 degrees F.
  • Integrated Base Pan Heater
  • MXZ-C outdoor condensers have a factory-installed base pan heater in the drain pan. This prevents condensate from freezing and damaging the unit in frigid climates.
  • Precision Temperature Control Technology
  • This outdoor condenser is equipped with inverter technology and an electronic linear expansion valve. By adjusting compressor speed and refrigerant flow, these components provide precise temperature control and incredible efficiency.
  • i-see Sensor
  • Each MSZ-FH has an i-see Sensor 3D that monitors its zone for changes in temperature. If an underserved area is detected, an MSZ-FH will temporarily direct airflow to that zone. It also enters energy saving mode if no human heat signatures are detected.
  • Hot-Start
  • Mitsubishi's hot start technology prevents cold drafts by delaying indoor unit fan operation until the heat exchanger has warmed up.
  • Advanced Filtration System
  • With three unique filters inside the MSZ-FH indoor units, the air in your zones is not only being conditioned, but it is also actively being cleaned. These filters remove odors, nanoparticles, and bacteria from re-entering your home.
  • Smart Set
  • Mitsubishi's Smart Set function allows you to save a cooling and heating profile consisting of a temperature, a fan speed, and an airflow direction for each indoor unit. These are easily activated with the Smart Set button on the remote controller.
  • Powerful Mode
  • The powerful setting on the MSZ-FH indoor units makes it easy to get your zones to the perfect temperature quickly. When activated, a unit temporarily increases refrigerant flow and fan speed to provide quick comfort through rapid heating or cooling.
  • Econo Cool Mode
  • By slowly adjusting the cooling set point and swinging the horizontal vanes, an MSZ-FH mini split indoor unit can improve the efficiency of cooling operations without compromising the comfort provided.
  • Dehumidification
  • When an 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.
  • Vane Control
  • Optimal air flow can be achieved with the MSZ-FH units thanks to independent vane control and two vane control options, standard and wide. Auto mode selects the best vane position based on operating mode while swing mode cycles through each vane position.
  • Recommended line set sizes for indoor unit connectivity:
  • MSZ-FH12NA: 1/4" x 3/8" Line Set (Qty 3)
  • MSZ-FH15NA: 1/4" x 1/2" Line Set
  • A branch box with a 3/8" x 5/8" line set connection is also required. Additional branch boxes and line sets may be required based on your configuration.
  • Product Includes
    • (1) Mitsubishi - 42k BTU - M-Series H2i Outdoor Condenser - For 2-5 Zones (MXZ-5C42NAHZ)
    • (1) Mitsubishi FH-Series 15k BTU Wall Mounted Unit - For Multi or Single-Zone (MSZ-FH15NA)
    • (3) Mitsubishi FH-Series 12k BTU Wall Mounted Unit - For Multi or Single-Zone (MSZ-FH12NA)
    Product Note
    This product requires the following accessories for installation:

    • Branch Box - A Mitsubishi PAC-MKA30BC or PAC-MKA50BC branch box is required to connect the refrigerant and power lines from the outdoor condenser to the indoor units.
    • 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.
Specifications
General Information
Type
Wall Mounted
Product Line
M-Series
Product Sub-line
Hyper-Heating
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
Cooling + Heating
Number of Zones A zone is a room or area within a building that has its own temperature control.
4
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. For example (09 + 12) means the system includes a 9k BTU unit and a 12k BTU unit.
12 + 12 + 12 + 15
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
SEER SEER (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 SEER, the more energy efficient the system. Learn More
19.0
EER EER (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 EER, the more efficient the system. Learn More
13.4
HSPF HSPF (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 HSPF, the more efficient the system. Learn More
11.0
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
Certifications
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
7434477
MXZ-5C42NAHZ Specifications
General Information
Type
Outdoor Condenser
Product Line
M-Series H2i
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
Cooling + Heating
Maximum Number of Zones
5
Multi-Zone Compatible
Yes
Installation Location
Outdoor
Branch Box Required By making a single connection to the outdoor condenser, a branch box can supply the right amount of refrigerant to multiple indoor units. Learn More
Yes
Performance
Nominal Capacity
42000 BTU
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
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
50 Amps
Dimensions
Maximum Line Length
492 Feet
Liquid Connection Size
0.375 Inches
Gas Connection Size
0.625 Inches
Product Height
52.6875 Inches
Product Width
41.34375 Inches
Product Depth
14 Inches
Product Weight
276 Pounds
Certifications
Energy Star Listed
Yes
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Compressor Warranty
7 Years
MSZ-FH15NA Specifications
General Information
Type
Wall Mounted Unit
Product Line
FH-Series
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
Cooling + Heating
Multi-Zone Compatible
Yes
Remote Control
Wireless
Installation Location
Indoor
Performance
Nominal Capacity
15000 BTU
Moisture Removal
4 Pints/Hour
Minimum Air Flow
225 CFM
Maximum Air Flow
411 CFM
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
46 dB
Minimum Sound Level
25 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Liquid Connection Size
0.25 Inches
Gas Connection Size
0.5 Inches
Product Height
12.6875 Inches
Product Width
36.4375 Inches
Product Depth
9.1875 Inches
Product Weight
29 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
MSZ-FH12NA Specifications
General Information
Type
Wall Mounted Unit
Product Line
FH-Series
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
Cooling + Heating
Multi-Zone Compatible
Yes
Remote Control
Wireless
Installation Location
Indoor
Performance
Nominal Capacity
12000 BTU
Moisture Removal
1.9 Pints/Hour
Minimum Air Flow
137 CFM
Maximum Air Flow
398 CFM
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
Minimum Sound Level
21 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Liquid Connection Size
0.25 Inches
Gas Connection Size
0.375 Inches
Product Height
12.6875 Inches
Product Width
36.4375 Inches
Product Depth
9.1875 Inches
Product Weight
29 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Features
Features
    Mitsubishi's dedication to new technology means that multi-zone mini split systems are now a year-round comfort solution for homes in freezing climates. This low ambient system uses a hyper-heating H2i MXZ-5C42NAHZ outdoor condenser to provide efficient cooling and subzero heating through four advanced MSZ-FH wall mounted indoor units. These indoor units feature Mitsubishi's i-See sensor, which automatically detects where heating or cooling is needed. Four wireless remote controllers guarantee convenient comfort by allowing you to control the temperature in individual rooms. With multiple operating modes, multiple fan speeds, and multiple airflow directions, this is a system that fits the needs of nearly any home.
  • H2i Technology
  • Low and negative ambient temperatures don't bother the MXZ-5C42NAHZ. It is rated for 100% heating capacity at 5 degrees F and continues to provide heating in outdoor conditions as low as -13 degrees F.
  • Integrated Base Pan Heater
  • MXZ-C outdoor condensers have a factory-installed base pan heater in the drain pan. This prevents condensate from freezing and damaging the unit in frigid climates.
  • Precision Temperature Control Technology
  • This outdoor condenser is equipped with inverter technology and an electronic linear expansion valve. By adjusting compressor speed and refrigerant flow, these components provide precise temperature control and incredible efficiency.
  • i-see Sensor
  • Each MSZ-FH has an i-see Sensor 3D that monitors its zone for changes in temperature. If an underserved area is detected, an MSZ-FH will temporarily direct airflow to that zone. It also enters energy saving mode if no human heat signatures are detected.
  • Hot-Start
  • Mitsubishi's hot start technology prevents cold drafts by delaying indoor unit fan operation until the heat exchanger has warmed up.
  • Advanced Filtration System
  • With three unique filters inside the MSZ-FH indoor units, the air in your zones is not only being conditioned, but it is also actively being cleaned. These filters remove odors, nanoparticles, and bacteria from re-entering your home.
  • Smart Set
  • Mitsubishi's Smart Set function allows you to save a cooling and heating profile consisting of a temperature, a fan speed, and an airflow direction for each indoor unit. These are easily activated with the Smart Set button on the remote controller.
  • Powerful Mode
  • The powerful setting on the MSZ-FH indoor units makes it easy to get your zones to the perfect temperature quickly. When activated, a unit temporarily increases refrigerant flow and fan speed to provide quick comfort through rapid heating or cooling.
  • Econo Cool Mode
  • By slowly adjusting the cooling set point and swinging the horizontal vanes, an MSZ-FH mini split indoor unit can improve the efficiency of cooling operations without compromising the comfort provided.
  • Dehumidification
  • When an 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.
  • Vane Control
  • Optimal air flow can be achieved with the MSZ-FH units thanks to independent vane control and two vane control options, standard and wide. Auto mode selects the best vane position based on operating mode while swing mode cycles through each vane position.
  • Recommended line set sizes for indoor unit connectivity:
  • MSZ-FH12NA: 1/4" x 3/8" Line Set (Qty 3)
  • MSZ-FH15NA: 1/4" x 1/2" Line Set
  • A branch box with a 3/8" x 5/8" line set connection is also required. Additional branch boxes and line sets may be required based on your configuration.
  • Product Includes
    • (1) Mitsubishi - 42k BTU - M-Series H2i Outdoor Condenser - For 2-5 Zones (MXZ-5C42NAHZ)
    • (1) Mitsubishi FH-Series 15k BTU Wall Mounted Unit - For Multi or Single-Zone (MSZ-FH15NA)
    • (3) Mitsubishi FH-Series 12k BTU Wall Mounted Unit - For Multi or Single-Zone (MSZ-FH12NA)
    Product Note
    This product requires the following accessories for installation:

    • Branch Box - A Mitsubishi PAC-MKA30BC or PAC-MKA50BC branch box is required to connect the refrigerant and power lines from the outdoor condenser to the indoor units.
    • 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.
Specifications
General Information
Type
Wall Mounted
Product Line
M-Series
Product Sub-line
Hyper-Heating
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
Cooling + Heating
Number of Zones A zone is a room or area within a building that has its own temperature control.
4
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. For example (09 + 12) means the system includes a 9k BTU unit and a 12k BTU unit.
12 + 12 + 12 + 15
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
SEER SEER (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 SEER, the more energy efficient the system. Learn More
19.0
EER EER (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 EER, the more efficient the system. Learn More
13.4
HSPF HSPF (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 HSPF, the more efficient the system. Learn More
11.0
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
Certifications
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
7434477
MXZ-5C42NAHZ Specifications
General Information
Type
Outdoor Condenser
Product Line
M-Series H2i
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
Cooling + Heating
Maximum Number of Zones
5
Multi-Zone Compatible
Yes
Installation Location
Outdoor
Branch Box Required By making a single connection to the outdoor condenser, a branch box can supply the right amount of refrigerant to multiple indoor units. Learn More
Yes
Performance
Nominal Capacity
42000 BTU
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
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
50 Amps
Dimensions
Maximum Line Length
492 Feet
Liquid Connection Size
0.375 Inches
Gas Connection Size
0.625 Inches
Product Height
52.6875 Inches
Product Width
41.34375 Inches
Product Depth
14 Inches
Product Weight
276 Pounds
Certifications
Energy Star Listed
Yes
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Compressor Warranty
7 Years
MSZ-FH15NA Specifications
General Information
Type
Wall Mounted Unit
Product Line
FH-Series
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
Cooling + Heating
Multi-Zone Compatible
Yes
Remote Control
Wireless
Installation Location
Indoor
Performance
Nominal Capacity
15000 BTU
Moisture Removal
4 Pints/Hour
Minimum Air Flow
225 CFM
Maximum Air Flow
411 CFM
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
46 dB
Minimum Sound Level
25 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Liquid Connection Size
0.25 Inches
Gas Connection Size
0.5 Inches
Product Height
12.6875 Inches
Product Width
36.4375 Inches
Product Depth
9.1875 Inches
Product Weight
29 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
MSZ-FH12NA Specifications
General Information
Type
Wall Mounted Unit
Product Line
FH-Series
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
Cooling + Heating
Multi-Zone Compatible
Yes
Remote Control
Wireless
Installation Location
Indoor
Performance
Nominal Capacity
12000 BTU
Moisture Removal
1.9 Pints/Hour
Minimum Air Flow
137 CFM
Maximum Air Flow
398 CFM
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
Minimum Sound Level
21 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Liquid Connection Size
0.25 Inches
Gas Connection Size
0.375 Inches
Product Height
12.6875 Inches
Product Width
36.4375 Inches
Product Depth
9.1875 Inches
Product Weight
29 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Product Specs
+
Specifications
General Information
Type
Wall Mounted
Product Line
M-Series
Product Sub-line
Hyper-Heating
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
Cooling + Heating
Number of Zones A zone is a room or area within a building that has its own temperature control.
4
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. For example (09 + 12) means the system includes a 9k BTU unit and a 12k BTU unit.
12 + 12 + 12 + 15
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
SEER SEER (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 SEER, the more energy efficient the system. Learn More
19.0
EER EER (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 EER, the more efficient the system. Learn More
13.4
HSPF HSPF (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 HSPF, the more efficient the system. Learn More
11.0
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
Certifications
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
7434477
MXZ-5C42NAHZ Specifications
General Information
Type
Outdoor Condenser
Product Line
M-Series H2i
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
Cooling + Heating
Maximum Number of Zones
5
Multi-Zone Compatible
Yes
Installation Location
Outdoor
Branch Box Required By making a single connection to the outdoor condenser, a branch box can supply the right amount of refrigerant to multiple indoor units. Learn More
Yes
Performance
Nominal Capacity
42000 BTU
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
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
50 Amps
Dimensions
Maximum Line Length
492 Feet
Liquid Connection Size
0.375 Inches
Gas Connection Size
0.625 Inches
Product Height
52.6875 Inches
Product Width
41.34375 Inches
Product Depth
14 Inches
Product Weight
276 Pounds
Certifications
Energy Star Listed
Yes
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Compressor Warranty
7 Years
MSZ-FH15NA Specifications
General Information
Type
Wall Mounted Unit
Product Line
FH-Series
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
Cooling + Heating
Multi-Zone Compatible
Yes
Remote Control
Wireless
Installation Location
Indoor
Performance
Nominal Capacity
15000 BTU
Moisture Removal
4 Pints/Hour
Minimum Air Flow
225 CFM
Maximum Air Flow
411 CFM
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
46 dB
Minimum Sound Level
25 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Liquid Connection Size
0.25 Inches
Gas Connection Size
0.5 Inches
Product Height
12.6875 Inches
Product Width
36.4375 Inches
Product Depth
9.1875 Inches
Product Weight
29 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
MSZ-FH12NA Specifications
General Information
Type
Wall Mounted Unit
Product Line
FH-Series
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
Cooling + Heating
Multi-Zone Compatible
Yes
Remote Control
Wireless
Installation Location
Indoor
Performance
Nominal Capacity
12000 BTU
Moisture Removal
1.9 Pints/Hour
Minimum Air Flow
137 CFM
Maximum Air Flow
398 CFM
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
Minimum Sound Level
21 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Liquid Connection Size
0.25 Inches
Gas Connection Size
0.375 Inches
Product Height
12.6875 Inches
Product Width
36.4375 Inches
Product Depth
9.1875 Inches
Product Weight
29 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Reviews
(4)
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Mitsubishi M4L42W12121215 Reviews & Ratings
Product Q&A
(3)
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Search Product Q&A's Answered by Chris, the eComfort Product Expert
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What is hyper heating?
Dan P. 
from Texas 
August 05, 2016
Answer
Hyper-Heating (also called H2i) is Mitsubishi's low-ambient temperature (outdoor temperature) heating technology. H2i units are capable of delivering nearly 100% of their rated heating capacity down to 0 F, and are capable of running in temperatures as low as -13 F.
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Can this unit be used for a business?
Joe 
from New York 
December 30, 2015
Answer
Yes, there is no reason the Mitsubishi M-series units can't be used in an office or store front. However if you are using the unit to cool equipment, such as a server, that requires cooling 24 hours a day 365, I would suggest using a Mitsubishi P-Series unit. These are more robust and will perform better under these conditions than the M-Series units.
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Does this unit only provide heating? Or does it do both heating and cooling?
Anna 
from Illinois 
December 25, 2015
Answer
While the Mitsubishi Hyper-Heating units are designed to provide exceptional low temperature heating performance, like all heat pumps, they are capable of both heating and cooling.
Recommended Accessories
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Expert Recommended Accessories Hand Picked By Our Expert Chris
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Optional Accessories
How-To Articles
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Manuals
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Mitsubishi Wall Mounted 4-Zone H2i System - 42,000 BTU Outdoor - 12k + 12k + 12k + 15k Indoor - 19.0 SEER
Mitsubishi M4L42W12121215
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Mitsubishi M4L42W12121215
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Mitsubishi M4L42W12121215
Mitsubishi M4L42W12121215
Mitsubishi M4L42W12121215
Mitsubishi M4L42W12121215
Mitsubishi M4L42W12121215
Mitsubishi M4L42W12121215
Mitsubishi M4L42W12121215
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