5 zone mxz-8b48na + (5) sez-kd09na4 - 45,000 btu (4 ton)

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Model #: MXZ-8B48NA(9+9+9+9+9)CD
Brand : Mitsubishi

Availability: In stock

Product Highlights:

  • Air Conditioner/Heat Pump
  • 5 Zone Ceiling Concealed System
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5 Zone MXZ-8B48NA + (5) SEZ-KD09NA4 - 45,000 BTU (4 Ton)

What is a multi room system?

While a standard heat pump system consists of an indoor and outdoor unit, a multi room system allows you to connect multiple indoor units to a single outdoor unit. The World Health Organisation recommends a minimum indoor temperature of 18-20°C for living areas and 16°C overnight for bedrooms. With a multi room heat pump system you have the freedom to choose the ideal unit for each area to keep you comfortable, without cluttering the exterior of your home. Plus, you get the benefit of the superior efficiency and energy savings of Mitsubishi Electric heat pump technology.

Why choose a multi room system?

We know that every home is as individual as its owner. Mitsubishi Electric multi room heat pump systems allow you to choose the perfect model for each room without the need to install multiple outdoor units.

Multiple Rooms with Individual Control From a Single System

With a multi-room system, you can enjoy your ideal level of comfort in the most important rooms in your home. each room (zone) operates independently. People in difference rooms – the kitchen, master bedroom or living room – can enjoy temperature settings that make each of them most comfortable.

If you’re looking for a complete comfort solution for several different rooms, the MXZ multi-room system is the right choice. The system is flexible enough to conform to your particular cooling and heating needs, with over 40 different indoor unit combinations, up to four indoor units connected to one outdoor unit. And now, with a SEZ horizontal ducted unit, you can enjoy an even greater range of zoning options provided by an MXZ system.

An MXZ multi-room system is an excellent choice for supplementing capacity to your current system or to condition newly finished spaces or new additions. you can also benefit from lower energy costs year-round while staying comfortable, thanks to Mitsubishi’s energy-efficient technologies.

Component Overview

  • MXZ 8B48NA Multi Zone Ductless Outdoor Heat Pump 48,000 BTU (4 Ton)

    Mitsubishi MXZ 8B48NA Multi Zone 4 Ton Heating and Cooling Ductless System 48,000 BTU Outdoor Unit

    Multiple rooms with individual control from a single system

    Enjoy ideal levels of comfort in the rooms you use most with our multi–room system. Each room (zone) operates independently. People in different rooms – the kitchen, master bedroom, or living room – can enjoy temperature settings that make each of them most comfortable.

    If you’re looking for a complete comfort solution for several different rooms, the MXZ multi-room system is the right choice. The system is flexible enough to conform to a particular cooling and heating need and offers numerous different indoor unit combinations. In addition up to eight indoor units can be connected to one outdoor unit. Now with a SEZ horizontal ducted unit and a MFZ floorstanding unit homeowners can enjoy an even greater range of zoning options provided by an MXZ system.

    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. Homeowners can also benefit from lower energy costs year-round while staying comfortable thanks to Mitsubishi Electric’s energy-efficient technologies that are a part of every system that we make.

    To add to the level of energy efficiency, the MXZ-2B20NA and MXZ-3B24NA systems qualify for both ENERGY STAR® and the federal tax credit (See details on page 21 for applicable indoor unit combinations).


    Mitsubishi MXZ-8B48NA: The ultimate zoning solution

    Introducing the Mitsubishi Electric MXZ-8B48NA eight-zone unit. As a member of the expanding MXZ-B Series of multi-zone systems, the MXZ-8B outdoor unit incorporates branch boxes to connect up to eight indoor units.

    The INVERTER-driven compressor at the heart of the MXZ 8B outdoor unit provides variable capacity control for the compressor, allowing the system to adjust to the specific demands of the interior space as needed, not the hard start and stop of a traditional system that is installed in most U.S. homes.

    Unlike the other models of MXZ-B Series outdoor units, the MXZ-8B48NA has only one port on the outdoor unit for two insulated refrigerant lines, which run into the home or business to connect to a branch box or boxes. From there, branch box(es), gas, and liquid refrigerant piping run to each of the indoor units. The LEV in the branch box(es) is used to control the refrigerant flow as the load of each zone changes.

    Through the branch box(es) (the PAC-AKA31BC three-port and/or the PAC-AKA51BC five-port), the system can connect from as few as two indoor units up to eight indoor units, depending on application requirements.

    The flexibility of the system doesn’t stop there. The MXZ-8B48NA has rated capacities of 48,000 Btu/h for cooling and 54,000 Btu/h for heating. System operation, however, can range from a minimum 12,000 Btu/h to a maximum 54,000 Btu/h in cooling and a maximum of 60,000 Btu/h in heating. This type of performance supports a large variety of applications.

    The MXZ-8B48NA allows for further flexibility because it supports a connected indoor unit capacity from 22% to 130% or 12,000 Btu/h to a maximum 70,200 Btu/h, depending on diversity.

    Diamond Comfort Mitsubishi MXZ-8B48NA

    Mitsubishi MXZ-8B48NA systems provide personalized comfort control and energy efficiency in up to as many as eight rooms with indoor unit air handlers with only a single outdoor unit.

    The Mitsubishi MXZ-8B48NA system features include the following features:

    •  individual zone control
    •  mix and match flexibility of indoor unit styles and combinations
    •  a wide range of indoor unit capacities that match the room size and requirements
    •  flexible design options to tackle the most challenging multi-room installations
    •  efficient systems, including three systems that meet ENERGY STAR® and federal tax credit requirements
    •  simple, quick, and cost–effective installation keeps install costs down on new construction and disruption to a minimum on renovations and refits

    Efficiency and performance ratings are dependent upon the number, style, and capacity of the indoor units installed with each Multi-Zone System.

    Mitsubishi MXZ-8B48NA Features and Benefits:

    • Anti-allergy enzyme filter which uses artificial blue enzyme catalyst on the filter filaments to capture harmful microbes
    • Hybrid Catechin pre-filter fibers infused with a bioflavinoid found in green tea that has antiviral and antioxidant properties
    • A-Control for unit wiring allows communication and power between outdoor and indoor units on three wires
    • Pulse Amplitude modulation (PAM) Control aligns electrical input wave to improve electrical power factor up to 98%
    • Low-ambient Cooling Operation allows for efficient operation with outdoor temperatures as low as 14°F (for the inverter models)
    • Powerful Mode provides 15 minutes of extra high-power cooling or heating
    • Wide Airflow (MSY/Z-A24) using two vane motors provides for seven horizontal airflow directions
    • Econo-Cool mode, 1? F step temperature setting, self-diagnostic function, swing mode (up and down), auto restart, dry mode operation
    • 6 year warranty on compressor and 1 year warranty on parts
    • NEW R410A Refrigerant

    Innovative Compressor Technology

    INVERTER-driven compressor systems in the outdoor unit detect subtle changes in temperature and, like a car’s cruise control, automatically adjust compressor speed – unlike conventional units, which start and stop repetitively. Special components within the compressor increase the magnetic flux and reduce its weight, allowing the compressor to generate higher energy efficiencies with better performance than ever before – at low levels of sound during start-up and running

    Efficient. Quiet. Secure.

    That's right. Reliable Mitsubishi MS-A09WA Mr. Slim units deliver all of these. First its small design, smart functionality, and lack of ductwork plus INVERTER (Models MS-A090WA nad MS-A12WA are the only non-inverter type Mitsubishi systems ) technology make it energy-efficient. Second, the unit's fan is designed to deliver air quietly and continuously with only a gentle whoosh for constant circulation and filtration. (That's why Mr. Slim systems were the first choice for thousands of churches, schools, and libraries across the U.S. Shhh!) Third, because each systems installs with only a three-inch opening for connecting the indoor and outdoor units, you don't have to worry about thieves gaining access through an easy-to-remove window unit. With Mr. Slim systems you can sleep in quiet comfort with a sense of security.

    The Solution is Clear

    • Cool only the areas you want and not the areas where you are not
    • Individual zoning at the push of a button, putting you in total comfort control
    • Less then 5% cooling loss occurs in insulated refrigerant lines versus up to 40% through ducts
    • Requiring just a 3 to 4" diameter hole in the outside wall means less mess, better home aesthetics, and improved security, unlike a window unit
    • Mr. Slim models mount high on the wall so they don't disturb your view
    • Mitsubishi units add value to your home and are more efficient than old window units, saving you money

    Mitsubishi MXZ-8B48NA's Quiet Operation

    Do you hear that? No? You barely hear our systems because Mitsubishi indoor units operate with barely a whisper.

    For example:

    • Police siren 118 decibels
    • Circular saw 107 decibels
    • Vacuum cleaner 74 decibels
    • Library reading room 33 decibels
    • Whisper-tone voice 35 decibels
    • Our Indoor Units 19 - 34 decibels (at low speed)

    Did you hear that? We hope you did.

    System Control in the Palm of Your Hand

    Mitsubishi Electric offers a comprehensive remote controller that controls temperature, fan speed and more. Choose from four modes: COOL, HEAT, AUTO and DRY. The controller also has a 12-hour ON/OFF timer for one-button control of your personal comfort.

    Warm Air, No Drafts

    Our hot-start heat pump technology provides warmth from the beginning. The fan increases in speed as the coil is warmed, reducing drafts so when you want warm air, you’ll get it.

    The Mitsubishi MXZ-8B48NA is Easy to Maintain

    With easily accessible filters, little or no ductwork to clean, and uncomplicated wiring connection points between the indoor and outdoor units, Mitsubishi systems rely on minimal maintenance, providing another level of comfort.


  • SEZ KD09NA4 Concealed Ceiling Slim Duct Indoor Unit Air Handler 8,100 BTU (3/4 Ton)

    Mitsubishi SEZ KD09NA4 3/4 Ton Concealed Ceiling Slim Duct Heating / Air Conditioning System 8,100 BTU Indoor Unit

    Sleek Styling, Small footprint, Big Difference:

    If you’re looking for discreet zoned comfort, then a short run ducted unit might be the solution for you. Whether you require a stand alone system or are in the market for a connected MXZ multi room system, the SEZ ducted units combine energy efficiency with quiet operation. Extremely quiet, in fact with operation volume as low as 23 dBA, these systems are no louder than a whisper.

    Additionally, their compact design allows for installation either hidden in the ceiling or beneath the floor. Three of the 1:1 systems are ENERGY STAR certified and two systems qualify for the federal tax credit. These units provide you with an environmentally friendly option that also provides a clean, installed look. These models offer the added flexibility of working in tandem with ductless models on the same MXZ multi-zone system, providing multiple installation options to best fit any application.

    The temperature of any space with an indoor air handler can be controlled to provide the perfect temperature. Along with this unique benefit, this also allows you to control whether or not a particular room is being conditioned based on if it is being occupied or not.

    Whichever mini split system you decide, you’ll be choosing an intelligent and eco friendly system that can deliver precise and controlled comfort.

    Benefits of a Mitsubishi SEZ-KD09NA4:

    The mini split is an extremely quiet system in and out. As stated above, the operating volume is little more than a whisper and the outside component to the system is much quieter than conventional models The slim and unobtrusive nature of both the indoor and the outdoor components means you save space in every aspect using this system. Its small size matched with its quiet performance means you hardly know it’s there.

    The lack of necessity for large ductwork as would be required by a conventional system saves on interior space for your home. This also makes installation easier than a traditional system and small line sets make any exposed lines minimal and attractive. Traditional ductwork can collect dust, dust mites and pollutants. Due to the nature of the mini split system, no ductwork is required meaning no place for unwanted pollutants to collect in your home.

    These systems are extremely efficient as well, much more so than a conventional system which translates into energy savings for you and your family. The zone ability of the mini split means you can bring in climate control into separate areas of your home with the use of multiple air handlers.

    Optional Filter Box for Mitsubishi SEZ-KD09NA4 :

    The FBL1 filter box for this model includes 1” thick pleated MERV 8 filters that are tested in accordance with ANSI/ASHRAE standard 52.2 and rated Class 2 under U.L standard 900 The filter cabinet is a screw through design to ensure a secure attachment to the indoor unit and the return connection in the rear can be converted to a bottom return. Constructed of non-insulated 20 gauge G-60 galvanized steel, the filter cabinet has a foam gasket that provides an airtight connection to the indoor unit and access door

    Warm Air Without the Drafts

    Mitsubishi's hot start heat pump technology provides warmth right from the beginning. The fan increases in speed as the coil is warmed, reducing drafts. This means when you want warm air, you’ll get it.

    The Mitsubishi SEZ-KD09NA4  is Easy to Maintain

    Providing an additional level of comfort, Mitsubishi systems require minimal maintenance. There is little to no ductwork to clean and filters are readily accessible. Uncomplicated wiring connection points between the indoor and outdoor units make maintenance a breeze.

    Mitsubishi SEZ-KD09NA4 Highlights:

        • Ceiling concealed ducted indoor unit for residential applications
        • Ultra thin body 7 7/8" high
        • Built in drain mechanism for condensate removal
        • Air filter is included with the indoor unit
        • Whisper-tone voice 35 decibels
        • Our Indoor Units 19 - 34 decibels (at low speed)
        • Automatic fan speed control
        • Auto restart following a power outage
        • Limited Warranty: One year on parts and defects

    Mitsubishi SEZ-KD09NA4 Specifications:

        • Capacity BTU/h : Cooling 8100  Heating 10,900
        • Power Source: 208/230V (60Hz)
        • Finish: Galvanized
        • External Dimensions (IN): 7 ⅞ x 31  ⅛ x 27  9/16
        • Net Weight: 18kg
        • Sound Level Low/Medium/High dB <A> : 23 26 30
        • Air Filter: PP Honeycomb fabric (washable)
        • MHK1 Controller sold separately here
        • Optional Filter Box sold here

    Here are some terrific applications where a Mini Split system would be ideal:

    Residential Applications for Mitsubishi SEZ-KD09NA4:

        • Sun rooms
        • Wine cellars
        • Guest quarters
        • Garage workshops
        • Homes without duct work
        • Bedrooms and family rooms
        • Room additions and renovations

    Commercial Applications for Mitsubishi SEZ-KD09NA4:

        • Storage facilities
        • Hotels and other lodging
        • Computer rooms/server rooms
        • Offices in warehouse spaces
        • Restaurant kitchen and prep areas
        • Buildings where security concerns prevent the use of window units
        • Internal areas without exterior wall access applications
        • Commercial add on jobs where the existing air conditioning system cannot be stretched.
        • Historical renovations or any application where preserving the look of the original structure is crucial.
  • PAC-AKA51BC Branch Box For MXZ8B48NA 1-5 Indoor Units

    Mitsubishi PAC-AKA51BC Branch Box For MXZ8B48NA 1-5 Indoor Units



    • Multi Zoning solution used to connect up to 5 Indoor Units.
    • Compatible with MXZ8B48NA Outdoor Unit.
    • Required Branch Boxes for MXZ-8B48NA (Maximum of 2 branch boxes can be connected to one outdoor unit; requires joint MSDD-50AR-E or MSDD-50BR-E.)

    Branch Box

  • MHK1 Wireless Remote Controller Kit for INVERTER-driven Mr. Slim Systems

    MHK1 Wireless Remote Controller Kit Exclusive for INVERTER-driven Mr. Slim Systems


    Mitsubishi MRCH1 Wireless Remote Controllermitsubishi

    •  Backlit, easy–to–read display
    •  Dual setpoint control with system changeover
    •  Enabled with RedLINK™ reliability
    •  Compatible with MCCH1 Portable Central Controller
    •  Installs Anywhere

    Mitsubishi MFH1 Wireless Receiver

    • Required for MRCH1 Wireless Remote Controller
    • Enabled with RedLINK reliability

    Mitsubishi MHK1 Kit includes

    • MRCH1 Wireless Wall-Mounted Remote Controllers
    • MIFH1 Wireless Receiver
    • MRC1 Cable

    Mitsubishi MHK1 Functions:

    • ON/OFF On/Off operation for a single indoor unit
    • Operation Mode - Cool / Drying / Auto / Heat / Fan only Available operation modes dependant on connected system.
    • Temperature Setting - Set temperature from 50°F – 87°F depending on operation mode and connected system
    • System Changeover - Deadband Value 2-8°F
    • Schedule Operation 5-2, 5-1-1
    • Fan Speed Setting -  Hi/Mid-2/Mid-1/Low/Auto Available fan speed settings dependant on connected system.
    • Air Flow Direction Setting - Air flow angles: 100o - 80o - 60o - 40o and oscilate Available air flow direction settings dependant on connected system.
    • Permit/Prohibit Function - Individual prohibit operations for each remote controller function (ON/ OFF, Set Temperature, and Operation Mode).
    • Space Temperature - Displays the measured space temperature.
    • Error Indication - Displays error code.
    • Display Outside Temperature and Humidity - Requires optional MOS1 Outside Air Senso
    • Dimensions - (W x D x H) Remote Controller: 5-3/16" x 1-1/2" x 3-9/16" Receiver: 3-1/4" x 1-5/16" x 6-7/16"
    • Operating Ambient Temperature Remote Controller: 32 - 120°F Receiver: -40 – 165°F
    • Operating Ambient Humidity Remote Controller: 5% - 90% RH (non-condensing) Receiver: 5% - 90% RH (non-condensing)
    • Power Supply 2 AA batteries

Additional Information

SKU/MODEL MXZ-8B48NA(9+9+9+9+9)CD
Brand Mitsubishi
Mounting Type N/A
Outdoor Unit Type N/A
SEER Rating N/A
Zone 5 Zone
Application heating and cooling
Cooling Capacity 45,000
Heating Capacity 45,000
Lowest Operating Temperature (Cooling) No
Lowest Operating Temperature (Heating) No
Cooling Range No
Heating Range No
Rated Capacity No
amperage(amp0 No
Decibels (outdoor) No
Decibels high/med/low/quiet (indoor) N/A
Dimensions (indoor) (H x W x D) N/A
Dimensions (outdoor) (H x W x D) No
liquid_line_connection_size No
Suction Line Connection Size No
Moisture Removal (Indoor) No
Weight (Indoor) N/A
Weight (Outdoor) N/A
Inverter technology No
Energy Star Rated No
Auto Restart No
Sleep Timer No
Air Filter No
Warranty No