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Friedrich WallMaster Series WS12C10C

11,500 BTU Through-the-Wall Air Conditioner with 9.4 EER, R-410A Refrigerant, 3.1 Pts/Hr Dehumidification, Money Saver Setting and Remote Control


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Replaced by WS12D10   compare>>

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Additional Options


Architectural Grille

(AG) preview
+ $91.00 

Baffle Adapter Kit

(BAK) preview
+ $15.00 

Drain Kit

(DK) preview
+ $28.00 

Internal Drain Kit

(IDK) preview
+ $36.00 

Wall Sleeve

(WSE) preview
+ $122.00 
The Perfect Fit For A 27" Sleeve
Whether you're replacing an existing 27" air conditioner or just want the ultimate thru-the-wall unit, WallMaster is the perfect fit. Built with the finest 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. Choose from cooling-only, cooling with electric heat or heat pump models. All WallMasters have a wireless remote plus convenient top-mount controls, a 24-hour programmable timer, an energy-efficient Money Saver setting and other premium features.

Why Choose Friedrich
As you shop for the perfect room air conditioner, you may encounter some familiar brand names. You've seen them on toasters, refrigerators, microwaves and washing machines.

Not the Friedrich name. Because air conditioners are the sole focus of their company. They don't manufacture light bulbs or televisions. They make air conditioners.

You'll find a range of choices: room, portable, ductless split systems, to name just a few. For quality, performance, efficiency, choice and service, Friedrich is the name to know.

How to Choose a Room Air Conditioner
Compared to large capacity central units, room air conditioners have several advantages. The initial cost of a room air conditioning unit is significantly lower than the cost of central air. Because room air conditioners are designed for cooling small spaces, operating costs are reduced. And, room air conditioners can provide personalized temperature and humidity controls that central systems cannot.

Calculating Cooling Capacity
Cooling capacity is the critical factor in properly selecting a room air conditioner. Cooling capacity is measured in British Thermal Units (BTUs) and typical models will range in capacity from 5,000 BTUs to 28,500 BTUs.

Choosing an undersized unit will overwork the unit and it will not cool properly. Choosing an oversized unit will cost more to buy and operate and it will not dehumidify properly.

We can help you to calculate capacity. Be prepared to provide specific information on:
  • Room Dimensions
  • A simple floor plan to show the location of doors and north-facing windows
  • The number of people it will serve
  • Sources of heat such as lamps, TV and appliances
  • An explanation of what's above the intended room
  • Your insulation provisions

Cooling Capacity by Room Size
Measure the length and width of the area to be cooled. Multiply the length by the width to determine square footage or square meters. When cooling rooms with uninsulated ceilings, great rooms, or southern or western sun exposures - step up to the next BTU size.

Room SizeBTU
Sq. Ft.Sq. m
15014 up to 5,000
16515 5,200
Energy Info
This air conditioner has an Energy Efficiency Rating of 9.4 and has an estimated yearly operating cost of $101.76.

The estimated yearly operating cost is based on the 2011 national average cost of $.1109 cents per kWh for electricity and an estimated number of operating hours of 750 hours. Your operating cost will depend on your utility rates and usage.
Cooling Capacity: 11,500 BTU
Heating Capacity: N/A
Volts Rated: 115 Volts
Cooling Amps: 11.5 Amps
Cooling Watts: 1,223 Watts
Heating Amps: N/A
Heating Watts: N/A
Energy Efficiency Ratio (ERR): 9.4
Moisture Removal: 3.1 Pints/Hr.
Room Side Air Circulation: 320 CFM
Sleeve Type: WSD
Net Weight: 112.0 Lbs.
Ship Weight: 116.0 Lbs.
Circuit Rating/Breaker
Circuit Rating Breaker or T-D Fuse: 125V - 15A
Plug Face (NEMA#): 5-15P
Power Cord Length: 6 Ft.
Chassis Width: 26 1/2"
Chassis Depth: 21"
Chassis Depth with Front: 22"
Chassis Height: 15 3/4"
WSD Sleeve Width: 27"
WSD Sleeve Depth: 16 3/4"
WSD Sleeve Depth with Front: 23"
WSD Sleeve Height: 16 3/4"
WSD Sleeve Min. Extension Into Room: 7 1/2"
WSD Sleeve Min. Extension Outside: 6/16"
Thru-the-Wall Finished Hole Width: 27 1/4"
Thru-the-Wall Finished Hole Depth: 15 5/16" Max.
Thru-the-Wall Finished Hole Height: 17 1/4"
  • Comfort and Convenience
  • Easy-to-reach, top mount controls.
  • Remote control.
  • 24-hour timer.
  • Smart Fan auto-adjusts fan speed to maintain desired temperature.
  • 3-speed fan.
  • Auto restart.
  • Electronic defrost control.
  • Reversible louver allows a second airflow option.
  • Energy Management and Compliance
  • Money Saver setting saves money by operating the fan only when needed.
  • ENERGY STAR qualified.
  • R-410A refrigerant.
  • Health and IAQ
  • Washable, antimicrobial filter.
  • Durability and Quality
  • Rotary compressors provide quiet, dependable performance.
  • Premium aluminum exterior grille.
  • Dense blower insulation.
  • Rifled copper tubing.
  • Impact resistant front cover.
  • High tech fins with sine wave lanced louvers increase energy efficiency by increasing surface area for heat exchange.
  • Safety and Security
  • EntryGard anti-intrusion protection secures chassis to sleeve to deter 'kick-in' intrusion.
  • Power cord current leakage protected.
  • Insect barrier.
  • Maintenance and Installation Features
  • Mounts flush with the exterior wall for a neat appearance.
  • Ideal for thicker wall installations, where side fins don't fit.
  • Reversible louver allows for a second airflow option.
  • A high efficiency replacement for 27" sleeves including Fedders A and B.
  • Sleeve measures 27" W x 16-3/4" H.
  • Accessories (Optional)
  • WSD sleeve, ships with inside and outside weather panel and standard grille.
  • AG architectural grille for use with WSD sleeve.
  • Baffle adapter kit for use with deep sleeve installations.
  • Drain kit for condensate disposal.
  • Internal drain kit for new construction applications where condensate drain system is built-in.
Current Rebates
Friedrich Room Air Conditioner Rebates - Save up to $50

Save Up to $50

Receive up to $50 off your Friedrich Room Air Conditioner purchase via mail-in rebate when you submit your rebate claim online. Print the online confirmation page and send it with a Rebate will be delivered as a check in the mail.

Terms and Conditions:
Apply at Print the online confirmation page and send it with a copy of your sales receipt to the address shown. Your mail must be postmarked no later than January 31st, 2016.

Download Download Rebate Form
Calendar Valid: 09/15/2015 - 12/31/2015

Available Rebates - May be Combined

Note: It is the sole responsibility of the customer to download and mail in the rebate form by the respective closing date. AJ Madison cannot be held responsible for non-compliance of the afore-mentioned.

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Quick Specs
Quick Specs


  • Width : 26 1/2"
  • Depth : 22"
  • Height : 15 3/4"


  • Type : Wall
  • Chassis Type : Thru the Wall
  • Wall Sleeve Included : No
  • Cooling Capacity (BTU) : 11,500 BTU
  • Maximum Cooling Amps : 11.5 Amps
  • Maximum Cooling Watts : 1,223 Watts
  • Heat : No
  • CFM Room Circulation : 320 CFM
  • Energy Efficiency Rating : 9.4
  • Control Type : Digital
  • Remote Control Included : Yes
  • PTAC : No

Technical Details

  • Energy Star Rated : Yes
  • ADA Compliant : No
  • Plug Type : 5-15P
  • Voltage : 115 Volts
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