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48,000 BTU 23 SEER Mitsubishi Multi-Zone Ductless H2i Hyper Heat Pump Condenser w/ Base Pan Heater



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The Mitsubishi MXZ-SM48NAMHZ-U1 is a heat pump condenser designed to be used in multi zone system setups. As one air handler is needed per room that you are trying to heat and cool, multiple single zone condensers can take up a lot of space in your yard, making a multi zone unit more practical in many applications. With its integrated drain pan heater allowing it to heat down to -13°F, the MXZ-SM48NAMHZ-U1 will keep you warm even through the coldest months of the year.


  • 48,000 BTU multi zone heat pump condenser
  • Variable speed Inverter-driven compressor with quiet operation features
  • Requires a branch box
  • Hyper Heat technology, supporting enhanced comfort down to -13°F
48,000 BTU

The Mitsubishi MXZ-SM48NAMHZ-U1 is rated to handle a total of 48,000 BTU, which generally should be the same or greater than the total BTU count across all air handlers that this unit is paired with. In some instances, a certified pairing will have a higher BTU count total than this condenser’s rating. This is intentional, as the condenser can easily handle more, however anything higher than this rating can potentially lower the speed that the unit can heat and cool, as well as limit the functional outputs of each air handler if they are all running at the same time.


Mitsubishi offers a 5 year parts and 7 year compressor warranty on all of its products. When the unit is registered online through the manufacturer after an installation that follows your state and local codes, the warranty is upgraded to a 10 year parts and compressor warranty.

Required Equipment

The Mitsubishi MXZ-SM48NAMHZ-U1 is designed with only one set of line set ports, allowing it to support a higher BTU output than units with multiple sets. As such, at least one branch box is required for this unit to function to allow it to connect to multiple air handlers. Along with branch boxes, this condenser requires air handlers, controllers, and other basic installation equipment to function, all of which are available at an additional cost.

Enhanced Comfort

With its variable speed compressor, the MXZ-SM48NAMHZ-U1 can provide more precise adjustments to the covered spaces with the right air handlers. This also slightly improves electrical efficiency by ramping the compressor up and down based on the unit’s air handlers’ needs, as well as providing a more stable temperature output from the connected air handlers to provide superior comfort.

Intelligent Control

For ease of control, many air handlers that are compatible with the MXZ-SM48NAMHZ-U1 can use any Mitsubishi-brand thermostat or adapter. The most convenient to control—the Kumo cloud WiFi adapter, found herethe Kumo cloud WiFi adapter, found here—allows each air handler to be accessed from anywhere that you have Internet. Please note that in most applications, you will need one thermostat or adapter per indoor air handler that you want to be able to control with it.

Product Specifications

More Information
48,000 BTU 23 SEER Mitsubishi Multi-Zone Ductless H2i Hyper Heat Pump Condenser w/ Base Pan Heater
Weight (in lbs)278.000000
Cooling BTU48,000
Heating BTU54,000
SEER1 (Efficiency)23-24
Liquid Line3/8"
Suction Line5/8"
Electrical208 / 230 V. 1 Phase 60 Hz
Max Breaker Size45 amps
Min. Breaker Size40 amps
Tonnage4 Ton
BTU/Tonnage48,000 BTU/4 Ton
Zone CompatibilityMulti Zone
Height52 11/16"
Width41 11/32"
WarrantyLimited warranty: five years parts and seven years compressors
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING

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Questions and Answers

Customer Questions
Which air handler will work best with this heat pump condenser? Our air handler is horizontal.
For this system it will require two or more air handlers to connect to the outdoor condenser. We also have multiple options in sizes and styles. Please give us a call and our experts go over your project specifics.
How many kw of electricity would this unit use if it was used all year
We are unable to estimate the kw usage for a year because of the several factors that impact this such as climate and usage patterns. For this particular unit they do list a guaranteed voltage range of 187-253. If you have any further questions please feel free to give us a call! Thanks.
Compressor FLA?
Thank you for your question. This outdoor condenser has a voltage of 208/230, it has 1-phase and it has a frequency of 60 Hz. It has a guaranteed voltage range of 198-253. The recommended fuse/breaker size for this outdoor unit is 45A. We strongly recommend that a licensed technician handle all aspects of electric during installation. To review this electrical information and more, please review the submittal for this product. This submittal can be found on the product page toward the end of the specifications, under resources. For more assistance, please give us a call.
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