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Mitsubishi M-Series One-Way Ceiling Cassette with Grille - Multi or Single-Zone - 12k BTU - R-454B
Model:
MLZ-KX12NL
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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
- Hot-Start
- Mitsubishi's hot-start technology prevents cold drafts by delaying fan operation until the heat exchanger has warmed up.
- Econo Cool Mode
- By slowly adjusting the cooling set point and swinging the horizontal vanes, the MLZ-KX can improve the efficiency of cooling operations without compromising the comfort provided.
- 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.
- 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.
- Condensate Removal System
- The MLZ-KX contains an internal drain mechanism capable of lifting condensate 19.6". This simplifies installation and prevents condensate overflow, which can damage or destroy your property.
- Serviceability
- The MLZ-KX is designed to fit between standard 16" joists and be serviced from below, making installation and maintenance easier than ever.
- (1) Mitsubishi M-Series One-Way Ceiling Cassette without Grille - Multi or Single-Zone - 12k BTU - R-454B (MLZ-KX12NL)
- (1) Mitsubishi MLP-449WU Ceiling Cassette Grille For Mitsubishi MLZ Mini Split Units (MLP-449WU)
- Line Set - This double insulated tubing transfers refrigerant efficiently between your outdoor condenser and indoor units.
- Connecting Wire - This durable, insulated wire provides power to your indoor units from your outdoor condenser.
The MLZ-KX12NL is a ceiling cassette indoor unit for use in multi or single-zone systems. The low-profile design is paired with quiet operations that provide comfort without disrupting your space. The only visible portion of the unit is its grille, which clocks in at a slender depth of 15/16". With multiple operating modes, multiple fan speeds, and the ability to fit between standard 16" joists, this unit can accommodate the needs of nearly any room. Whether you are designing a primary heating and cooling system or supplementing an existing one, the MLZ-KX12NL is an excellent addition.
Product Includes
Product Note
This product requires a compatible Mitsubishi mini split outdoor condenser and the following accessories for indoor unit installation:
Specifications
Product Includes
- (1) Mitsubishi M-Series One-Way Ceiling Cassette without Grille - Multi or Single-Zone - 12k BTU - R-454B (MLZ-KX12NL)
- (1) Mitsubishi MLP-449WU Ceiling Cassette Grille For Mitsubishi MLZ Mini Split Units (MLP-449WU)
MLZ-KX12NL

General Information
Type
Ceiling Cassette
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-454B
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
Grille
Included
Required Grille Model
MLP-449WU
Additional Model Numbers
MLZ-KX12NLG, MLZ-KX12NL
Performance
Cooling BTU
12000
Cooling Capacity
11300 BTU
Heating Capacity
14600 BTU
Moisture Removal
2.6 Pints/Hour
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
Shipping Weight
42 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
MLZ-KX12NL
General Information
Type
Ceiling Cassette
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-454B
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
Grille
Not Included
Required Grille Model
MLP-449WU
Performance
Cooling BTU
12000
Cooling Capacity
11300 BTU
Heating Capacity
14600 BTU
Moisture Removal
2.6 Pints/Hour
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
Shipping Weight
42 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
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Manuals
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