Friedrich M18YH
18,000 BTU Single Zone Wall-Mount Ductless Split System with 21,600 BTU Heat Pump, 13.0 EER, Inverter Technology and R410A Refrigerant (MW18Y3H Indoor/MR18Y3H Outdoor)


No Longer Available

Only 3 left in stock.

Replaced by M18YJ   compare>>

Additional Options

Refrigeration Line Sets


15 ft. Insulated Refrigeration Line Set

(T53150) preview
+ $118.33 

35 ft. Insulated Refrigeration Line Set

(T53350) preview
+ $230.00 



Wired Wall Mounted Controller

(DWC) preview
+ $175.00 
Friedrich is known for manufacturing some of the world's most durable air conditioners. You won't believe some of the places you'll find them. Friedrich air conditioners are made from higher grade materials and components that delivery dependable operation for years. But don't take their word for it. Some of their customers are business that operate in harsh environments where equipment just has to work. Period. Oil companies rely on them to cool offshort oil rigs, and they can be found on military bases and in government offices all over the world. Friedrich air conditioners are in use at Northrop Grumman, Eastman Chemical and the Kennedy Space Center, just to name a few. If they can handle their jobs, just think how well they will perform in your home. Available at AJ Madison.

Ductless Split Systems Air Conditioning
No ductwork No problem. Incredibly quiet, sleek and energy-efficient, ductless split systems are the smart way to cool rooms without ductwork-even those without windows or exterior walls. And new for 2011, high-efficiency 115V models with Inverter Technology!

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. You need only a 2" clearance from the ceiling, so you'll have lots of placement options. 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 18,000 BTU.
Performance Ratings
System Model No.: M18YH
Indoor Model: MW18Y3H
Outdoor Model: MR18Y3H
Capacity Cooling: 18,000 BTU
Capacity Cooling Min. - Max.: 7,000 - 23,000 BTU
Cooling Amps: 6.3 Amps
Sensible Heat Ratio: 0.64
Capacity Heating @ 47°F: 21,600 BTU
Capacity Heating Min. - Max.: 7,000 - 29,000 BTU
Capacity Heating @ 17°F: 14,600 BTU
HSPF: 10.0
SEER: 19.2
EER: 13.0
Energy Star: Yes
Federal Tax Rebate: Yes
Moisture Removal: 5.9 Pts/H
Airflow (Quiet, Low, Med, High): 305/365/435/540 CFM
Sound Rating - Indoor: 28/33/37/43 dB-A
Sound Rating - Outdoor: 47 dB-A
Operating Range (Heat): 14 - 115°F (5 - 75°F)
Est. Yearly Operating Cost: $111
Electrical Data
Power Source: 230/208-60-1
Min. Ampacity: 16 Amps
Cooling Watts: 1,380 Watts
Max. TD Fuse/Breaker: 20 Amps
Refrigeration System
Refrigerant: R410A
Compressor Type: Inverter
Connections: Flare
Liquid Line O.D.: 3/8"
Suction Line O.D.: 5/8"
Factory Precharge: 66 Ft.
Max. Line Length: 164 Ft.
Max. Height Difference: 98 Ft.
Dimensions and Weights
Indoor Unit - Width: 39 1/4"
Indoor Unit - Depth: 9"
Indoor Unit - Height: 12 5/8"
Indoor Unit - Net Weight: 31 Lbs.
Indoor Unit - Shipping Weight: 40 Lbs.
Outdoor Unit - Width: 32 3/4"
Outdoor Unit - Depth: 13"
Outdoor Unit - Height: 35 3/8"
Outdoor Unit - Net Weight: 135 Lbs.
Outdoor Unit - Shipping Weight: 150 Lbs.
Total Net Weight: 166 Lbs.
Total Shipping Weight: 190 Lbs.
  • Comfort and Convenience
  • LCD wireless remote for each indoor unit and secured remote control holder.
  • 24-hour timer and sleep timer.
  • Four fan speeds cooling or heating.
  • High, medium, low, quiet, plus auto-fan.
  • Multiple operating modes.
  • Auto, cool, dry (dehumidification), fan only and heat.
  • Washable, reusable air filters for less maintenance.
  • Continuous "Air Sweep" for even distribution of air throughout the room.
  • Auto-shut flaps close when unit is off for a sleeker appearance.
  • Auto-restart after power interruptions.
  • Auto-changeover.
  • Remote controllers have four different transmitter codes to prevent unintentional adjustment or programing of nearby units when multiple units are installed.
  • Low temperature operation to 0°F.
Info and Guides

Adobe Acrobat FileBrochure

Adobe Acrobat FileWarranty

Adobe Acrobat FileOperation Manual

Adobe Acrobat FileService Manual

Adobe Acrobat FileSubmittal Sheet

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Product Reviews
Rated 4.3 out of 5 by 4 reviewers.
Rated 5 out of 5 by I should have buy this unit a long time ago for some items the french guide translation isn't too good so I had to refer to the english one to be sure about the instructions. 5/24/12
Rated 5 out of 5 by Great Product This is a great solution to heating and cooling. The product is energy efficient and does everything that AJ Madison said it would. I would recommend to anyone wanting to have a controlled heating and cooling unit for a given area. I am glad I listened to Grad at Madison and ordered this unit. I couldn't be more satisfied with the product and AJ Madison. I am very handy but would recommend a professional licensed HVAC contractor for the install. Do not attempt this installation yourself. Thanks Grace. D 12/28/11
Rated 5 out of 5 by Excellent Good product, cools ice cold, fan setting is great!, very happy with its performance 8/14/12
Rated 2 out of 5 tDub AJ Madison purchase and delivery exceeded expectations. Less than impressed with Friedrich lineset. Suction line was very difficult to work with given it's 5/8" diameter (larger than most ductless). Kinked 1st line when trying to route into exterior wall. Purchased a 2nd line set and that one kinked near connection to condenser. Finally gave up and ordered a replacement ductless unit from AJ Madison with more typical line set sizes. 1/4" and 3/8" lines are much easier to route and work with. 5/13/14
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Warranty Info

Warranties on mini split air conditioners only include parts and do not include labor. The licensed HVAC Technician who installs your air conditioner should always provide you with a labor warranty (preferably for at least a full year to compliment the manufacturers' parts warranty).

AJ Madison will only finalize a Mini Split (Ductless Split System) purchase with an authorized HVAC Technician. AJ Madison recommends the installation of a mini-split system to be performed by a trained and qualified HVAC technician with the proper knowledge and background. A trained technician will be able to judge the best location for the air handling (evaporator) unit and also the correct size for the area the unit will heat and/or cool. For assistance with all your technical needs please contact our technical department at

Should you experience an issue during the installation or the initial startup of a unit please do not contact the manufacturer. You should have the technician that installed your system contact either AJ Madison or the manufacturer. We cannot accept any service or warranty calls from anyone but a licensed HVAC technician. We have a full technical support team available to help you throughout the installation process.

AJ Madison, Inc. cannot be held liable for improper installation and operation of any product purchased from our company. Should a warranty issue arise in which parts will need to be replaced, an installation receipt will be required along with your AJ Madison sales receipt. Failure to provide a receipt or invoice may result in the warranty not being honored.

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Quick Specs
Quick Specs


  • AC System Type : Mini Split
  • Component Type : System
  • Operation : Cooling with Heat Pump
  • No. of Rooms : 1
  • Min No. of Connectible Indoor Units : 1
  • Max No. of Connectible Indoor Units : 1
  • Indoor Unit Placement Type : Wall Mount
  • Wireless Remote Control(s) Included : Included
  • Wired Remote Control(s) Included : No


  • BTU Class : 18,000 BTU
  • Heating Capacity : 21,600 BTU

Electrical Data

  • Running Current Cooling - Max. (Amps) : 6.3 Amps
  • Power Input Cooling - Max. (Watts) : 1,380 Watts


  • Energy Star Certified : Yes
  • EER (Energy Efficiency Rating) : 13
  • SEER (Seasonal Energy Efficiency Rating) : 19.2
  • Airflow Rate Medium (CFM) : 540 CFM

Technical Details

  • ADA Compliant : No
  • Voltage : 230/208 Volts

Dimensions & Weights

  • Net Weight : 166 Lbs.
  • Shipping Weight : 190 Lbs.
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