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A scheduled delivery is available only Monday - Friday during normal business hours and used for heavy and oversized items (large TVs, large furniture and large appliances). This service includes delivery to the main entrance or garage (but does not include stairs). This service does not include unpacking, plugging in, installation or debris removal.

Note: Scheduled delivery services are available to most of the contiguous United States (available in parts of Alaska and Hawaii). Call 888-228-5800 for more information.

Friedrich WallMaster 12000 Btu 9.4 EER Wall Air Conditioner - WS12C30

Abt Model: WS12C30 | UPC Code: 724587429657
This product is no longer available.

Product Details

Energy Star Rated - Yes

Friedrich WallMaster 12000 Btu 9.4 EER Wall Air Conditioner, Model WS12C30

Whether you're replacing an existing air conditioner or working on a project that requires a more permanent installation, WallMaster is a perfect fit for existing 27" sleeves. Once installed, there is no discernible gap between the unit and the sleeve, for a clean, finished appearance and minimal intrusion of outdoor air. Built with the best commercial-grade materials and components, WallMaster is durable yet quiet. Its solid-side sleeve assures maximum performance in thicker wall applications and gives you multiple installation options. Plus, the Baffle Adapter Kit expands the depth of sleeves that can accommodate WallMaster. Choose from cooling-only, cooling with electric heat or a heat pump, including ENERGY STAR® qualified models. All WallMasters come with a wireless remote plus convenient top-mount controls, a 24-hour programmable timer, an energy-efficient MoneySaver® setting and many other premium features.


Commercial-grade components, superior construction
WallMaster is constructed with quality materials and rugged components that contribute to its longevity and quiet performance.

Components and Construction

  • Fan motors: Robust, commercial-grade and totally enclosed fan motors run at lower temperatures to prevent overheating
  • Non-rusting aluminum endplates: Won’t leave rusty condensate collecting in the drain pan and will prevent unsightly rust stains on buildings
  • High-tech, rifled copper tubing and slit fins: Greater surface area creates maximum heat exchange efficiency
  • Heavy 20-gauge steel cabinet: Strong and durable
  • Solid sleeve top: Protects the fan from falling debris that can damage the unit
  • Insulated plenum: Prevents outside air intrusion
  • EntryGard™ anti-intrusion protection uses a steel retaining wire to secure the chassis to the sleeve

Quiet performance

  • High-efficiency compressor: Mounted on large, vibration-absorbing grommets
  • Extra-thick rubber grommets: Absorb motion and sound
  • Motor mount with dual resilient rings: Prevents metal-to-metal contact that can cause noise and vibration
  • Solid steel blower wheel housing: Provides maximum sound reduction

Designed specifically for thicker wall installations
Unlike solid-side thru-the-wall air conditioners, window air conditioners have side vents. Covering an air conditioner’s side air vents (as shown to the right) can restrict air flow, diminish performance and potentially void your warranty so we strongly advise against it. Our solid-side sleeve has no side vents. You can install it through walls up to 15 5/16" deep without compromising performance.

Flexible options
WallMaster fits perfectly with any 27"Wx16 ¾"Hx16 ¾"D sleeve, including Friedrich’s WSD sleeve and Fedders’ A sleeve. It also can be installed in Fedders’ 19 ¾" B sleeve with the available Baffle Adapter Kit (BAK). The unit can be mounted flush with an exterior wall or closer to the interior wall for a slimmer indoor profile. And the optional architectural grille enhances the unit’s exterior appearance.

Models for a variety of commercial applications
WallMaster has models for any climate. Choose cooling-only, cooling plus electric heat, or a heat pump.

  • Cooling-only: Provides air conditioning without supplemental heat. Galvanized steel inner- and outer-weather panels (included with WSD sleeves) block cold winter air.
  • Cooling with electric heat: Provides air conditioning and electric heat in a single unit. Ideal in regions with colder winter temperatures.
  • Heat pump: Provides air conditioning and high-efficiency heating in a single unit. At peak efficiency heat pumps use 1/3 of the electricity used by an electric heat unit. Heat pumps are an excellent choice in regions where the average winter temperature remains above 45° F.

What's the difference between electric heat and a heat pump?
There are important operational differences that can impact your energy bill. Consider the average winter temperature in your area and consult your energy supplier about costs before you buy.

Electric heat, also known as electric resistance heat, is created when an element inside the unit is heated by an electric current. A fan sends the heat directly from the unit into the room; your hair dryer works the same way. Electric heat can be more comfortable in climates where the average winter temperature is below 45° F.

A heat pump is an air conditioner that can run in reverse to provide heat. In air conditioning mode, it removes heat from the indoor air and expels it outside. In heating mode, it extracts heat from the outdoor air and uses it to heat your indoor space. At peak efficiency, heat pumps use 1/3 of the electricity used by an electric heat unit. However, heat pumps heat most comfortably and efficiently when the average winter temperature stays above 45° F. They are not well suited to, or as energy efficient in, colder climates.

Comfort and Durability

  • Easy-to-reach top-mount controls
  • Remote control
  • 24-hour programmable timer
  • Smart Fan auto-adjusts fan speed to maintain desired temperature
  • 3-speed fan
  • Auto-restart
  • Electronic defrost control
  • Rotary compressors provide quiet, dependable performance
  • Premium stamped exterior grille
  • Rifled copper tubing
  • Impact-resistant front cover
  • Washable, antimicrobial filter

Sound Reduction Technology

  • Vibration-isolating design and components
  • Dense blower insulation
Energy Management and Compliance
  • MoneySaver® setting saves money by operating the fan only when needed.
  • ENERGY STAR® qualified models
  • High-tech fins with sine wave lanced louvers increase energy efficiency by increasing the surface area for heat exchange

Safety and Security

  • Insect barrier
  • Premium, stamped galvanized steel grille screws securely to the powder-coated galvanized steel sleeve for kick-in entry prevention (WSD sleeve sold and shipped separately)


  • Volts Rated 230 / 208
  • Cooling Amps 5.7 / 6.1
  • Cooling Watts 1275 / 1225
  • Plug Face (NEMA #) 6-15P
  • Power Cord Length 4 ft.
  • Air Circulation 320 CFM
  • Moisture Removal 3.6 pints / 24 hours
  • Cooling Capacity 12000 / 11500
  • EER 9.4 / 9.4
  • Energy Star Qualified Yes

Approximate Dimensions

  • Height: 15.75"
  • Width: 26.5"
  • Depth: 21"

Approximate Weight

  • Unit: 109 lbs
  • Shipping: 113 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 5 Years Limited
Key Features
Easy-To-Reach Top-Mount Controls/ 24-Programmable Timer/ 3-Speed Fan/ Auto-Restart/ Electronic Defrost Control/ Vibration-Isolating Design/ 12000 Btu Capacity/ 9.4 EER/ Washable Antimicrobial Filter/ 320CFM/ White Finish
More reasons to buy the Maytag WS12C30 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Maytag WS12C30 is Brand New.
  • The Maytag WS12C30 Ships in a Factory Sealed Box.
Amps5.7 / 6.1
Voltage230/208 V
Cooling BTU12,000
CFM Room Circulation320
Chassis TypeSlide Out
Control TypeElectronic
Remote IncludedYes
Wall Sleeve IncludedNo
Parts Warranty5 Years Limited
Labor Warranty5 Years Limited
Delivery is subject to reasonable access to the area without damaging the purchaser's property or the product, or jeopardizing the safety of the delivery personnel.
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