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Friedrich FMZ24TJ19-9W-12D-12D

24,000 BTU (2.0 Ton) 19 SEER Ductless Mini-Split Tri-Zone Heat Pump System

(3 Reviews)

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Professional installation now available in Ashburn, VA!

  • Free online quotes
  • No home visit
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Want to know more about ductless mini-split systems? View our video:

"Ductless Mini-Split Air Conditioning (and Heating) Systems"


Why Choose Wall-Mounted?

If you have one or more rooms without exterior walls or windows, a wall-mounted ductless split system will work beautifully. The indoor air handler is sleek, unobtrusive and quiet. All systems come with a remote control, so even units high on the wall are easy to operate. There’s also an optional wired, wall-mounted controller for models over 18000 Btu. See our selection of wall-mounted ductless split systems.

Choose from single-zone cooling models, single-zone heat pumps that cool and heat, and multizone heat pumps that individually cool and heat multiple rooms.

*Wireless LCD Remote is included with each Indoor Wall Mount Unit.


Why Choose a Ceiling Cassette?

The indoor air handler mounts completely flush with the ceiling and only the grille is visible. However, a minimum of 9 ¼" of clearance above the ceiling is required, which makes it a great solution for drop ceilings.  Each ceiling cassette has two branch ducts that can be run to adjoining rooms; an additional fan is required for each branch. So if there’s adequate clearance in only one space, a ceiling cassette can still cool and heat up to 3 rooms from a single system.  Friedrich ceiling cassettes have an energy-efficient SEER of 15.0, yet provide up to 2 tons of cooling capacity and over 24000 Btu of heat. They come with a wired, programmable remote that can control up to 16 units individually or by zones.  

*Wireless LCD Remote is included with each Ceiling Cassette Unit.


Why Choose a Concealed Duct?

Concealed duct units are mounted in the ceiling of rooms where minimal visibility of the heating and cooling system is desired. Ideally suited for applications where wall space is limited or the ceiling is the preferred installation location with only a small vent opening visible in the ceiling. Powerful, quiet compact and energy efficient, the installation will require minimal ductwork.

*Wired, 7-Day Programmable Controller is included with each Concealed Duct Unit.





  • LCD remote for each indoor unit
  • 24-hour timer and sleep timer
  • Automatic, cooling, fan and heating* modes
  • 4 fan speeds heating* or cooling, including a “quiet” setting
  • Continuous ‘Air Sweep’
  • Auto-restart after power interruptions
  • Auto-shut flaps close when unit is off for a sleeker appearance
  • Washable, reusable air filters
  • Removable front grille
  • Auto-changeover*
  • Low ambient operation
  • Secured remote control holder
  • 4 different transmitter codes to prevent unintentional interference with nearby units
  • Optional wired, wall-mounted controller available for models rated 18000 Btu or higher

* Heat pump models only


Cool and heat up to four zones

Like other ductless models, a wall-mounted system consists of an outdoor condensing unit and 1–4 indoor air handlers connected by refrigerant and electrical lines that run through a 3" opening in an exterior wall. 

  • Single-zone cooling: This system has one outdoor condenser and one indoor air handler that cools one room. The new 115V models have cooling capacities of 9000 and 12000 Btu, and the 230/208V models range from 18000 to 33000 Btu.

  • Single-zone heat pumps: This system has one outdoor condenser and one indoor air handler that cools and heats one room. Cooling capacities range from 8500 to 22000 Btu, and heating capacities range from 10000 to 27600 Btu.

  • Multizone heat pumps: This system has one outdoor condenser and up to four indoor air handlers that cool and heat individual rooms. Each indoor unit is separately controlled for customized comfort settings, and units can be turned off in unoccupied rooms to save energy. Multizone systems are available in numerous configurations, with total system capacities between 18000 and 36000 Btu. 




The advantages of Inverter Technology

Friedrich wall-mounted ductless split systems feature variable speed compressors and fans (called Inverter Technology), which reach the desired temperature faster, maintain it more accurately and reduce energy consumption with fewer compressor startups.  Our wall-mounted ductless split systems can cool and cool/heat 1-4 zones. Multizone systems let occupants independently set the temperature for individual comfort. Units in unoccupied rooms can be turned off to save energy.


Available in cooling-only and cooling plus heat pump models

  • Cooling from: 8500-33000 Btu
  • Heating: 10000-27600 Btu
  • Hard-to-find 115V 9000 and 12000 Btu/h models are available.
  • Capacities up to 3 tons.



Wall Mounted Zone Diagram


Complete your system by selecting a line set from the Accessories tab above.  Line sets come in 15 foot, 25 foot, 35 foot, and 50 foot lengths.

Included in the Friedrich FMZ24TJ19-9W-12D-12D Box:

(1) MR24DY3JM 24kBTU Outdoor Condenser

(1) MW09Y3J Wall Mount Air Handler

(2) MD12Y3JM Concealed Duct Air Handler

(1) LCD Remote Control

(2) Wired, 7-Day Programmable Controller

Cooling Capacity

Not sure what size you need? Feel free to use our easy sizing calculator.

Cooling Capacity
28800 BTU
Maximum Heating Output BTU

The amount of heat, rated in British Thermal Units (BTUs), that the unit can deliver into the space. Not sure how many BTUs you need? Try our easy Equipment Sizing Estimator.

Maximum Heating Output BTU
38400 BTU

Seasonal Energy Efficiency Ratio (SEER) is a measure of cooling over an entire season. It is determined by comparing the amount of cooling produced in BTUs in relation to the amount of electricity used. A higher SEER means a system is more energy efficient and would provide comfort at a lower utility cost than a lower SEER system.

19.05 SEER
Energy Efficiency Ratio

The measure of air conditioner efficiency at its maximum load

Energy Efficiency Ratio
12.6 EER
Coefficient of Performance

Coefficient of Performance is the efficiency ratio of the amount of heating or cooling provided by a heating or cooling unit to the energy consumed by the system. The higher the Coefficient of Performance the more efficient the system. Resistance electrical heating (such as electric baseboards) for example has a Coefficient of Performance of 1.0

Coefficient of Performance
3.5 COP
Heating Seasonal Performance Factor

A measure of heat pump efficiency while in a heating mode. The higher the number the better the energy efficiency.

Heating Seasonal Performance Factor
9.0 HSPF

Inside air conditioning systems are liquid/gas refrigerant. There are two types of this refrigerant available for use, R-22 (more commonly known as Freon), and a newer alternative R-410A.

An air conditioning system does not consume refrigerant, but reuses it. As long as there are no leaks in the refrigerant circuit, there is no need to ever add more refrigerant to an air conditioning system.

Although R-22 is an effective refrigerant, if it is released into the atmosphere it can contribute to the depletion of the Earth’s ozone layer. The EPA has mandated the phasing out the use of R-22. It is being replaced by R-410A.

As of 2010, manufacturers are required to make all new air conditioners with R-410A. However, R-22 is still available for sale in existing pre-2010-manufactured equipment, and for use in servicing existing R-22 equipment. By 2020, R-22 will no longer be manufactured, but will still be recycled and available for sale.

Minimum Ampacity
15.4 Amps
Maximum Fuse/Breaker

The maximum capacity breaker that the unit can be connected to (This is the best option for consistent performance)

Maximum Fuse/Breaker
25 Amps
Wiring Requirement for Indoor Unit

The wiring recommended to connect the outdoor unit to the interior air handler.

Wiring Requirement for Indoor Unit
4 Conductor / 18 Gauge
Maximum Line Length

The maximum length of line set approved for use with this product.

Maximum Line Length
246.1 Feet
Maximum Height Difference

The maximum vertical distance between the condensing unit and the air handler.

Maximum Height Difference
49.2 Feet
Line Set Connection Type

There are two main types of connections for HVAC products brazed and flared. Brazed connections are typically used in standard split systems, and flare connections are typically used on mini splits and can be connected using a wrench.

Line Set Connection Type
Compressor Type

Reciprocating compressors use a piston to compress the refrigerant.

Rotary compressors utilize a roller rotating eccentrically inside a cylinder and a spring mounted blade always rubbing against the roller. As the eccentric rotates towards the blade, the space is decreased and the refrigerant is compressed. Rotary compressors are very efficient.

Scroll compressors consists of 2 scrolls to pressurize refrigerant. Often 1 scroll is fixed and the other orbits eccentrically compressing the gas between the scrolls. Scroll compressors are quiet, smooth and offer highest efficiency ratio of all compressor types.

Scroll Ultratech™ compressors are advanced scroll compressors which offer more features and better diagnostics.

Compressor Type
ENERGY STAR® Qualified

Products earn the ENERGY STAR label by meeting the energy efficiency requirements set forth in ENERGY STAR specifications. The EPA establishes these specifications based on the following set of principles:

  • Product categories must contribute significant energy savings nationwide.
  • Qualified products must deliver the features and performance demanded by consumers, in addition to increased energy efficiency.
  • If the qualified product costs more than a conventional, less-efficient counterpart, purchasers will recover their investment in increased energy efficiency through utility bill savings, within a reasonable period of time.
  • Energy efficiency can be achieved through broadly available, non-proprietary technologies offered by multiple manufacturers.
  • Product energy consumption and performance can be measured and verified with testing.
  • Labeling would effectively differentiate products and be visible for purchasers.

ENERGY STAR® Qualified

The number of interior air handlers connected to the condensing unit. Typically one, two, or three zones.

Liquid Line Connection Size

The outside diameter of the liquid line pipe (the inside diameter of the connection on the equipment).

Liquid Line Connection Size
(3) 1/4 Inches
Suction Line Connection Size

The outside diameter of the suction line (the inside diameter of the connection on the equipment).

Suction Line Connection Size
(3) 3/8 Inches
Total Weight
257 Lbs
208 / 230 Volts
60 Hz
Voltage Phase
Compressor Warranty
7 Years
Parts Warranty
5 Years
*Any accessories purchased with the Friedrich FMZ24TJ19-9W-12D-12D, are eligible for free shipping.
Alpine Mini Split Wire
Alpine MW4/25

25' 14/4 Stranded Ductless Mini-Split Wire - Non-Shielded (600 Volt)

$28.99 Qty:
Alpine Mini Split Wire
Alpine MW4/50

50' 14/4 Stranded Ductless Mini-Split Wire - Non-Shielded (600 Volt)

$47.99 Qty:
Diversitech Mini-Split Condenser Pad
DiversiTech EL1838-3

E-Lite 18" x 38" x 3" Mini-Split Condenser Pad

$33.99 Qty:
Rectorseal 83003

5/8in Inner Diameter Drain Hose, 20ft Length

$27.99 Qty:
 Yellow Jacket 19173
Yellow Jacket 19173

19173 Adapter 5/16" x 1/4" for Ductless Mini-Split Systems

$17.99 Qty:
DiversiTech EDS-60U
Alpine AG-DCT

Safety Non-Fused Electrical Disconnect

$12.99 Qty:
Electrical Whip 4
Alpine AG-WHP10

1/2 x 48 Inches, #10 Gauge Electrical Whip

$17.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40680150B3B6

15 Foot 3/8 SL 1/4 LL Ductless Mini-Split Line Set

$99.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40680250B3B6

25 Foot 3/8 SL 1/4 LL Ductless Mini-Split Line Set

$107.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40680350B3B6

35 Foot 3/8 SL 1/4 LL Ductless Mini-Split Line Set

$126.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40680500B3B6

50 Foot 3/8 SL 1/4 LL Ductless Mini-Split Line Set

$167.99 Qty:
Diveritech ACB-30
Diversitech ACB-30

Wall Bracket for Ductless Mini-Split Condensers, 600 lbs Weight Capacity

$59.99 Qty:
Diversitech IQP-KUBE Front
DiversiTech IQP-KUBE

ClearVueKübe 120 Volt or 230 Volt Condensation Pump for Ductless Mini-Split Systems

$94.99 Qty:
Rectorseal 83002

5/8in Coil Standard Drain Hose 164ft Length

$67.99 Qty:
Rectorseal 83004

5/8in Coil UV Resistant Drain Hose 164ft Length

$80.99 Qty:
Rectorseal 87743 2
Rectorseal 87743

Slab Stand for Ductless Mini-Split Condensers, 176 lbs Weight Capacity

$84.99 Qty:
Product Image
Rectorseal 97705

Rectorseal 97705 Mighty Bracket

$99.99 Qty:
Diversitech CGB-AER Main
Diversitech CGB-AER

Coil Guard - Aerosol, Blue

$21.99 Qty:
Diversitech 230-CP
DiversiTech 230-CP6

Coupling for 6" SpeediChannel™ Line Set Covers

$7.99 Qty:
Diversitech 230-D6
DiversiTech 230-D6

78" Long, 6" SpeediChannel™ Line Set Cover

$42.99 Qty:
Diversitech 230-D6
DiversiTech 230-D6 (5-Pack)

(5-Pack) 78" Long, 6" SpeediChannel™ Line Set Cover

$193.99 Qty:
Diversitech 230-DC
DiversiTech 230-DC6

End Cap for 6" SpeediChannel™ Line Set Covers

$5.99 Qty:
Diversitech 230-DCLIP
DiversiTech 230-DCLIP-10

(10-Pack) SpeediClips™

$4.99 Qty:
Diversitech 230-DE
DiversiTech 230-DE6

End Fitting for 6" SpeediChannel™ Line Set Covers

$8.99 Qty:
Diversitech 230-EB
DiversiTech 230-EB6

90° Inside Elbow for 6" SpeediChannel™ Line Set Covers

$19.99 Qty:
Diversitech 230-EIN
DiversiTech 230-EIN6

90° Outside Elbow for 6" SpeediChannel™ Line Set Covers

$19.99 Qty:
Diversitech 230-FB45
DiversiTech 230-FB456

45° Flat Bend for 6" SpeediChannel™ Line Set Covers

$17.99 Qty:
Diversitech 230-FB
DiversiTech 230-FB6

90° Flat Bend for 6" SpeediChannel™ Line Set Covers

$17.99 Qty:
Diversitech 230-FR
DiversiTech 230-FR6

Flat Wall Escutcheon for 6" SpeediChannel™ Line Set Covers

$5.99 Qty:
Diversitech 230-LFB
DiversiTech 230-LFB6

90° Long Bend for 6" SpeediChannel™ Line Set Covers

$18.99 Qty:
Diversitech 230-TJ
DiversiTech 230-TJ6

T-Joint for 6" SpeediChannel™ Line Set Covers

$37.99 Qty:
Diversitech 230-WC
DiversiTech 230-WC6

Wall Connection Piece for 6" SpeediChannel™ Line Set Covers

$19.99 Qty:
Diversitech 230-WR
DiversiTech 230-WR6

Non-Flat Wall Escutcheon for 6" SpeediChannel™ Line Set Covers

$5.99 Qty:
Rectorseal 83017
Rectorseal 83017

Telescoping Wall Sleeve 3in x 5in x 7 3/4in

$9.99 Qty:
Diversitech 358-20
Diversitech 358-20

Foam-Plus™ Foaming Coil Cleaner – 19 oz. Aerosol

$9.99 Qty:
Diversitech HDT303K

Deluxe Digital Thermometer

$24.99 Qty:
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