We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
1-800-397-1392
Today's Hours 8am - 11pm estMitsubishi 42,000 BTU SEZ-AD-Series 21.5 SEER2 5 Zone Ceiling Cassette Mini Split Hyper Heat Pump System R454B | 230V - 9 + 9 + 12 + 12 + 12
Required Fields *
By
Mitsubishi
In stock
Model
MXZ-SM42NLHZ / 2-MLZ-KX09NL / 3-MLZ-KX12NL
ID
200835
Was $20,766.57
Your Low Price $14,385.75
42,000 BTU Mitsubishi M-Series 21.5 SEER2 Five Zone Ceiling Cassette Mini Split Hyper Heat Pump System - R454B | 9 + 9 + 12 + 12 + 12
This high-efficiency system is ideal for homes with multiple zones, offering ceiling cassette units that provide seamless integration into any room design.
- Total Capacity: 42,000 BTU
- SEER2 Rating: 21.5
- Indoor Unit Sizes: 9,000 + 9,000 + 12,000 + 12,000 + 12,000 BTU
- Refrigerant: R454B - Environmentally-friendly refrigerant for better efficiency
- Ideal For: Homes or commercial spaces with multi-zone setups requiring discreet, high-performance cooling and heating
Combines the sleek design of ceiling cassette units with powerful performance to cover multiple zones efficiently.
42,000 BTU Mitsubishi Multi Zone Condenser - R454B
Create efficient, year-round comfort with a compact multi-zone outdoor condenser designed to simplify home climate upgrades and pair seamlessly with compatible indoor air handlers.
Upgrade your comfort with the Mitsubishi MXZ-SM42NLHZ Outdoor Multi-Zone Heat Pump Condenser—a hyper-heating inverter-driven outdoor unit designed to deliver efficient heating and cooling for multiple connected indoor spaces. Built for homeowners who want flexible comfort, quiet operation, and easier installation, this condenser pairs effortlessly with compatible Mitsubishi indoor units for reliable, year-round performance.
Key Features
- Multi-Zone Comfort — Supports up to five indoor units for independent temperature control in separate rooms.
- Hyper-Heating Performance — Helps maintain strong heating output in cold weather for added comfort through the winter.
- Quiet Outdoor Operation — Engineered for low-noise performance to help preserve a comfortable home environment.
- Built for Durability — Features a corrosion-resistant outdoor coil coating for added protection in challenging environments.
Warranty
Mitsubishi offers a limited warranty of 10-Year Compressor / 10-Year Parts Warranty when installed according to manufacturer guidelines and registered properly.
9,000 BTU Mitsubishi M Series Ceiling Cassette Air Handler - R454B
Enjoy discreet, efficient comfort with the Mitsubishi Electric MLZ-KX09NL ceiling cassette air handler.
Transform the comfort of your space with the Mitsubishi Electric MLZ-KX09NL Ceiling Cassette Mini Split Air Handler. Designed to deliver reliable heating and cooling for smaller rooms, this indoor unit combines a low-profile ceiling-mounted design with quiet performance for bedrooms, offices, finished spaces, and other compact areas.
Key Features
- Efficient Performance You Can Feel — When paired with a compatible Mitsubishi condenser, it helps maximize comfort while supporting efficient energy use.
- Right-Sized Comfort for Smaller Spaces — The 9,000 BTU capacity is ideal for bedrooms, offices, and other compact residential areas.
- Low-Profile Ceiling Design — Recesses into the ceiling for a clean look and space-saving installation.
- Ultra-Quiet Operation — Helps maintain a comfortable environment with low-noise performance.
Warranty
10-year limited parts warranty with online registration.
12,000 BTU Mitsubishi M Series Ceiling Cassette Air Handler - R454B
Enjoy discreet, efficient comfort with the Mitsubishi Electric MLZ-KX12NL ceiling cassette air handler.
Transform the comfort of your space with the Mitsubishi Electric MLZ-KX12NL Ceiling Cassette Mini Split Air Handler. Designed to deliver reliable heating and cooling for moderately sized rooms, this indoor unit combines a low-profile ceiling-mounted design with quiet performance for bedrooms, living areas, offices, and other everyday spaces.
Key Features
- Efficient Performance You Can Feel — When paired with a compatible Mitsubishi condenser, it helps maximize comfort while supporting efficient energy use.
- Right-Sized Comfort for Everyday Spaces — The 12,000 BTU capacity is well suited for larger bedrooms, living rooms, and other residential areas.
- Low-Profile Ceiling Design — Recesses into the ceiling for a clean look and space-saving installation.
- Ultra-Quiet Operation — Helps maintain a comfortable environment with low-noise performance.
Warranty
10-year limited parts warranty with online registration.
Mitsubishi M-Series - 5 Ports - Branch Box
Mitsubishi Electric PAC-LMA50BC Branch Box Overview
The Mitsubishi Electric PAC-LMA50BC Branch Box is a key component in multi-zone HVAC systems, designed to efficiently distribute refrigerant and optimize the performance of connected indoor units. Supporting up to five indoor units, this branch box is ideal for both residential and commercial applications where reliable and balanced operation is required.
Key Features
- Supports Multiple Indoor Units: Connects up to five indoor units, allowing flexible system configurations for a variety of spaces.
- Balanced Refrigerant Flow: Ensures consistent refrigerant distribution to each connected indoor unit, enhancing overall system efficiency and performance.
- Durable Construction: Made with galvanized steel, the PAC-LMA50BC offers long-lasting durability and resistance to environmental factors.
- Compact, Space-Saving Design: Its small footprint allows installation in areas with limited space, making it suitable for tight mechanical rooms or ceilings.
- Low Power Usage: Operates efficiently with minimal energy consumption, reducing operating costs.
Technical Specifications
- Power Supply: Single-phase, 208/230V, 60Hz
- Input Power: 0.003 kW
- Running Current: 0.15A
- Dimensions:
- Width: 17-3/4 inches (450 mm)
- Depth: 11-1/16 inches (280 mm)
- Height: 6-3/4 inches (170 mm)
- Weight: 16.0 lbs (7.4 kg)
Piping Connections
- Indoor Unit Connections:
- Liquid Line: 1/4" (6.35 mm) x 5 [A, B, C, D, E]
- Gas Line: 3/8" (9.52 mm) x 4 [A, B, C, D], 1/2" (12.7 mm) x 1 [E]
- Outdoor Unit Connections:
- Liquid Line: 3/8" (9.52 mm)
- Gas Line: 5/8" (15.88 mm)
Optional Accessories
- Branch Box Enclosure (BBE-1): Provides extra protection for the branch box in exposed or demanding installations.
- Port Adapters: Facilitate connection to various pipe diameters, including:
- ADP3812: 3/8" to 1/2"
- PAC-SK88RJ-E: 1/2" to 3/8"
- PAC-SK89RJ-E: 1/2" to 5/8"
- PAC-493PI: 1/4" to 3/8"
- PAC-SK90RJ-E: 3/8" to 5/8"
- ADP5834: 5/8" to 3/4"
Applications
- Residential Multi-Zone Systems: Ideal for homes requiring multiple indoor units, ensuring consistent performance and comfort throughout the space.
- Light Commercial Use: Suitable for offices, retail shops, or small commercial buildings where multiple indoor units are connected to a single outdoor unit.
Overall, the PAC-LMA50BC Branch Box is a reliable and versatile component that simplifies multi-zone HVAC installations. Its durable construction, compact design, and efficient refrigerant distribution make it an essential part of residential and commercial HVAC systems.
Mitsubishi MLP-449WU Grille for MLZ-KP Cassettes
The Mitsubishi MLP-449WU is one of the grille options required to complete a KP cassette installation.
Features:
- Allows for direct service of unit from below.
- Overlaps a 1.5' x 4' area to hide the ceiling cassette body in a drop ceiling or recessed between 16" on center joists.
Compatible Indoor Units:
Ceiling Cassette
- KP Series: MLZ-KP09NA, MLZ-KP12NA, MLZ-KP18NA
Installation Kit for Condensers
Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.
What’s Included:
- 3/4" x 6' Electrical Whip – SKU: 84138
- 60A Non-Fused Disconnect – SKU: 83335
- Surge Protector – SKU: ICM517
- CPS Charging Adapter – SKU: 87-AD87
- Telescoping Wall Sleeve – SKU: NFP-75
Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!
Mitsubishi MHK2 Wireless Remote Controller
The Mitsubishi MHK2 is the second revision of Mitsubishi's most popular wireless controller set, now available for M & P Series residential and light commercial units. This controller offers in-depth 7-day scheduling and an easy to read, backlit display.
The updated MHK2 can now be used in tandem with the Kumo Cloud wi-fi adapter, sold separately. No longer do you have to choose between internet and wireless control: you can use both!
The MRCH2 is the main body of the thermostat. This can be placed anywhere within 200 feet of the indoor unit and does not require line of sight. The ;MRC2 cable will connect to the CN105 connector on the indoor unit's control board. The other end of this cable will connect to the MIFH2 receiver. The MIFH2 should be placed on the right side of a wall mounted unit, in the pocket of a MLZ-KP cassette, or anywhere near the control side of a ducted or square cassette unit.
Features:
- Includes MRCH2 thermostat, MIFH2 wireless receiver, and MRC2 cable
- Backlit display
- Can sense temperature at indoor unit (default) or at controller
- Fahrenheit °F / Celsius °C
- No batteries required
- Single zone compatible
- Multi zone compatible
- English, French, Spanish
Compatible Indoor Units:
Wall Mounted
- GL Series: MSZ-GL06NA-U1, MSZ-GL09NA-U1, MSZ-GL12NA-U1, MSZ-GL15NA-U1, MSZ-GL18NA-U1, MSZ-GL24NA-U1, MSY-GL09NA-U1, MSY-GL12NA-U1, MSY-GL15NA-U1, MSY-GL18NA-U1, MSY-GL24NA-U1
- FH Series: MSZ-FH06NA, MSZ-FH09NA, MSZ-FH12NA, MSZ-FH15NA, MSZ-FH18NA2
- EF Series: MSZ-EF09NAB-U1, MSZ-EF09NAS-U1, MSZ-EF09NAW-U1, MSZ-EF12NAB-U1, MSZ-EF12NAS-U1, MSZ-EF12NAW-U1, MSZ-EF15NAB-U1, MSZ-EF15NAS-U1, MSZ-EF15NAW-U1, MSZ-EF18NAB-U1, MSZ-EF18NAS-U1, MSZ-EF18NAW-U1
- JP Series: MSZ-JP09WA-U1, MSZ-JP12WA-U1
- WR Series: MSZ-WR09NA-U1, MSZ-WR12NA-U1, MSZ-WR18NA-U1, MSZ-WR24NA-U1
- D Series: MSZ-D30NA-8, MSZ-D36NA-8, MSY-D30NA-8, MSY-D36NA-8
- P Series: PKA-A12HA7, PKA-A18HA7,PKA-A24KA7, PKA-A30KA7, PKA-A36KA7
Ducted
- KD Series: SEZ-KD09NA4R1.TH, SEZ-KD12NA4R1.TH, SEZ-KD15NA4R1.TH, SEZ-KD18NA4R1.TH
- P Series: PEAD-A09AA7, PEAD-A12AA7, PEAD-A15AA7, PEAD-A18AA7, PEAD-A24AA7, PEAD-A30AA7, PEAD-A36AA7, PEAD-A42AA7
Ceiling Cassette
- KF Series: SLZ-KF09NA, SLZ-KF12NA, SLZ-KF15NA, SLZ-KF18NA
- KP Series: MLZ-KP09NA, MLZ-KP12NA, MLZ-KP18NA
- P Series: PLA-A12EA7, PLA-A18EA7, PLA-A24EA7, PLA-A30EA7, PLA-A36EA7, PLA-A42EA7
Floor Mounted
- MFZ-KJ09NA-U1, MFZ-KJ12NA-U1, MFZ-KJ15NA-U1, MFZ-KJ18NA-U1
Multi Position Air Handler
- KP: SVZ-KP12NA, SVZ-KP18NA, SVZ-KP24NA, SVZ-KP30NA, SVZ-KP36NA
- P Series: PVA-A12AA7, PVA-A18AA7, PVA-A24AA7, PVA-A30AA7, PVA-A36AA7, PVA-A42AA7
Ceiling Suspended
- P Series: PCA-A24KA7, PCA-A30KA7, PCA-A36KA7, PCA-A42KA7
15 feet - 1/4" and 3/8" Line Set & Control Wire
Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 15-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 15 ft. insulated refrigerant line set
- 15 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
25 feet - 1/4" and 3/8" Line Set & Control Wire
Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 25-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 25-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 25 ft. insulated refrigerant line set
- 25 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
30 feet - 1/4" and 3/8" Line Set & Control Wire
Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 30-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 30-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 30 ft. insulated refrigerant line set
- 30 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
Equipment Pad and Risers Kit
E Lite Condenser Pad and Risers
E Lite Condenser Pad
E Lite Condenser Pad is designed to provide solid support for air conditioning condensers. It's made from sturdy polypropylene, striking a balance between lightness and stability. Its robust design ensures a level ground without the need for extra components.
Key Features:
- Reliable Support: Abundance of ridges for stable ground support.
- Durable and Lightweight: Tough yet not excessively heavy, thanks to polypropylene construction.
- Anti-Slip: The surface prevents slipping, and rounded edges enhance safety.
- Simple Appearance: Gray color with size labels.
- Versatile Use: Suitable for condensers, pipes, ducts, cables, and more.
E Lite Risers
E Lite Risers complement the Condenser Pad, allowing you to adjust your setup as needed. They are constructed from weather-resistant PVC for outdoor use.
Key Features:
- Weather Resistance: Made from tough PVC for long-lasting performance.
- Secure Setup: The track securely holds bolts in place.
- Bolts Included: Each set comes with two bolts.
- Strong Support: Capable of handling loads of up to 397 pounds.
E Lite Condenser Pad and Risers offer reliable support without any complications. They are built to last and deliver efficient performance. Consider E Lite for your support needs – it's a practical solution for your projects.
No Return Policy
All sales of this product are final and are non-refundable.
35 feet - 1/4" and 3/8" Line Set & Control Wire
Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 35-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 35-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 35 ft. insulated refrigerant line set
- 35 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
30" Wall Mount Bracket
This wall mount bracket is perfect for outdoor condensers. The length of the wall bracket arms are 30" long. The condensing unit is mounted onto the L-shaped brackets and fastened using bolts and anti-vibration washers (not included with brackets).
Features:
- Steel: 10 GA
- Powder-coated grey Finish
- Load rating: 600 lbs per pair
- Holes will accommodate anchors for installation
- Warranty: 1 year
- ACB line of wall brackets are approved by the Florida Building Commission and are High Velocity Hurricane Zone (HVHZ) approved. (See product certification documentation for complete details.)
No Return Policy
All sales of this product are final and are non-refundable.
50 feet - 1/4" and 3/8" Line Set & Control Wire
Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 50-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 50-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.
The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.
What's Included
- 50 ft. insulated refrigerant line set
- 50 ft. 14/4 mini-split control wire
- 1/4" liquid line with flared ends
- 3/8" suction line with flared ends
Features
- 1/2" thick insulation for improved efficiency
- Heavy-duty refrigerant line construction
- Stranded copper wire for reliable conductivity
- Flexible and durable installation materials
- Compatible with most mini-split systems
- Ideal for HVAC installations and replacements
Write Your Own Review
Customer Questions
Why Choose Mitsubishi Mini Splits?
Mitsubishi mini split air conditioners and heat pumps provide exceptional comfort, energy efficiency, and ultra-quiet performance in any climate. Engineered for reliability and precision, these systems offer year-round heating and cooling while reducing energy costs and enhancing indoor air quality.