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Smart Wi-Fi Through-the-Wall Air Conditioner

WallMaster®

Our WallMaster® Through-the-Wall ACs offer the ONLY perfect fit for existing 27" sleeves, including Fedders A and B (requires a baffle kit), but it also has advanced and sustainability features—providing you precise comfort and significant energy cost savings. Unrivaled commercial-grade construction, engineered with QuietMaster® technology, Precision Inverter®, and integrated Wi-Fi control. As part of our commitment to offering sustainable products, the WallMaster line now utilizes A2L-compliant R-32 refrigerant and features inverter compressors, helping you contribute to decarbonization goals while enjoying more energy cost savings. Available in 10,000 - 15,500 Btu/h. in Cooling only and 10,000 Btu/h in Heat Pump models.

More About This Product

Learn about product features, tech specs, product documents & downloads, model sizing and accessories. Still need help? Check out our Consumer Service & Support Page for product support, common FAQs or to contact a product specialist.

Features

Precise Comfort with Precision Inverter®

Traditional room air conditioners have on/off compressors that result in wild temperature swings, inefficient energy use, and hard stops/starts that may shorten the life of the unit. Friedrich’s Precision Inverter® variable speed compressor adjusts up or down based on need, providing the user precise temperature control, exceptional energy efficiencies, and dependably quiet operation. Additionally, the frequent on/off operation of traditional units puts strain on both the unit and the power grid during hot summers. Friedrich Soft-Start™ technology starts the compressor with significantly less strain at start up, saving energy.

Quietmaster® Technology

Engineered for quiet performance with superior components. As much as 45% quieter than competitor’s products.

  • Steel inner wall and extra dense insulation blocks outdoor noise
  • Vibration isolating design and components reduce operating noise
  • Precision engineering delivers maximum air flow and air dispersion at low sound levels

Smart Wi-Fi Control with Voice Command

Integrated Wi-Fi control from your smartphone and voice command compatible. New intuitive platform. Simplified 7-day programmability. With our advanced grouping program, you can control multiple units to work independently or as a single system. You can even invite other users to manage one or more of your units. Adjust set point, schedule, control multiple units, and more—at home or remotely via the FriedrichLink® app.

Installation & Built to Last

WallMaster units mount flush with the exterior wall. Firm grip handles on the chassis allow for easy installation and removal from wall sleeve.

Enjoy peace of mind with a durable, commercial grade design built to perform in the extreme conditions of industrial and commercial applications.

Commercial Grade Quality & Durability

Each WallMaster unit is designed with a rotary compressor to provide quiet, dependable performance. Dense blower insulation blocks outside noise. A premium aluminum exterior grille and impact resistant front cover come standard with each model.

Comfort & Convenience

Replace old, inefficient 27” sleeve units with WallMaster—a perfect fit in Fedders A and B (requires a baffle kit). Plus, the unit mounts flush with the exterior wall for a seamless installation.

Units are equipped with a three-speed fan, 24-hour timer, and electronic defrost control. Individually adjustable louvers direct airflow to where it’s needed most. The unit’s Money Saver® setting cycles the fan with the compressor.

Smart & Sustainable Heat Pump

WallMaster® offers both electric and heat pump options. Heat Pumps provide energy-efficient heating by extracting heat from the outside air. They can be used for primary heating in moderate climates and as supplemental heating in colder climates. 230-volt models have backup electric heat that will activate when outside temperatures are too cold for efficient heat pump operation. The WallMaster (WHV14B33A) Air Conditioner also functions as a heat pump, heating effectively down to 45 degrees—eliminating the need for a second unit to provide warmth. In addition to all the great features you can expect from WallMaster ACs, heat pump-enabled units offer:

  • Increased efficiency
  • Year-round comfort
  • Decreased cost
  • ENERGY STAR® certified model

Friedrich’s commitment to environment-friendly cooling is shown in the WallMaster. The unit has eco-friendly R-32 refrigerant and arrives in recyclable packaging.

Specifications

Specifications By Model

View basic model specs below. See product specs for more details.

Model Energy Star Qualified Operation Cooling BTU Heating BTU Voltage EER CEER Cooling Area (Sq Ft.) Dimensions H" x W" x D" REFRIGERANT
WCT08A10A N Cool Only 8,000 --- 115 10.7 10.6 300-350 17 1/4 x 27 1/2 x 23 1/4 R410A
WCT10A10A N Cool Only 10,000 --- 115 10.7 10.6 400-450 17 1/4 x 27 1/2 x 23 1/4 R410A
WCT10A30A N Cool Only 10,000 --- 230 10.7 10.6 400-450 17 1/4 x 27 1/2 x 23 1/4 R410A
WCT12A10B N Cool Only 11,600 --- 115 10.6 10.5 450-550 17 1/4 x 27 1/2 x 23 1/4 R410A
WCT12A30B N Cool Only 12,000 --- 230 10.6 10.5 450-550 17 1/4 x 27 1/2 x 23 1/4 R410A
WCT16B30A N Cool Only 16,000 --- 230 9.4 9.3 550-700 17 1/4 x 27 1/2 x 23 1/4 R-32
WET10A33A N Cool/Elect. Heat 10,000 11,000 230 10.7 10.6 400-450 17 1/4 x 27 1/2 x 23 1/4 R410A
WET12A33A N Cool/Elect. Heat 12,000 11,000 230 9.6 9.5 450-550 17 1/4 x 27 1/2 x 23 1/4 R410A
WET16A33A N Cool/Elect. Heat 15,400 11,000 230 9.4 9.3 550-700 17 1/4 x 27 1/2 x 23 1/4 R410A
WHT12A33A N Cool/Heat Pump/Electric Heat 11,100 8,900 230 9.4 9.3 450-550 17 1/4 x 27 1/2 x 23 1/4 R410A
Documents

Documents & Downloads For This Model

View manuals, guides, warranties, videos and other resources for this model.

2015  

Friedrich Wallmaster THRU-THE-WALL Video

2016  

Friedrich Wallmaster - How to Remove Cover Video

2020  

QuietMaster Technology Video

2019  

WallMaster Brochure

2020  

WallMaster Brochure

2019, 2020  

Friedrich WallMaster Commercial Grade Through-the-Wall Air Conditioners

2019, 2020  

Friedrich WallMaster Smart Through-the-Wall Air Conditioners

2021  

WallMaster Brochure

2022  

WallMaster Brochure

2023  

WallMaster Brochure

2023, 2024  

WallMaster WCT08A10A Through-the-Wall Energy Guide

2023, 2024  

WallMaster WCT10A10A Through-the-Wall Energy Guide

2024  

WallMaster WCT10A30A Through-the-Wall Energy Guide

2019, 2020  

WallMaster WCT12A10A Through-the-Wall Energy Guide

2019, 2020  

WallMaster WCT12A30A Through-the-Wall Energy Guide

2023, 2024  

WallMaster WCT16A30A Through-the-Wall Energy Guide

2023, 2024  

WallMaster WET10A33A Through-the-Wall Energy Guide

2023, 2024  

WallMaster WET12A33A Through-the-Wall Energy Guide

2023, 2024  

WallMaster WET16A33A Through-the-Wall Energy Guide

2023, 2024  

WallMaster WHT12A33A Through-the-Wall Energy Guide

2019  

WallMaster Installation & Operation Manual

2021  

WallMaster Installation & Operation Manual (English/Spanish/French)

2023  

FriedrichConnect Wi-Fi Operation Manual Guide

2019  

WallMaster Accessory AG Architectural Grille Manual

2019  

WallMaster Accessory BAK Baffle Manual

2019  

WallMaster Accessory DK Drain Kit Manual

2019  

WallMaster Accessory IDK Drain Kit Manual

2019  

WallMaster Accessory WSE Sleeve Manual

2024  

WallMaster Warranty

2018  

WallMaster Brochure

2023, 2024  

WallMaster (R-32) Installation & Operation Manual

2024  

WallMaster Brochure

2019  

WallMaster Warranty

2024  

WallMaster WCT12A10B Through-the-Wall Energy Guide

2024  

WallMaster WCT12A30B Through-the-Wall Energy Guide

2024  

WallMaster WCT16B30A Through-the-Wall Energy Guide

2025  

WallMaster Brochure

2025  

WallMaster WCVT10B30A Through-the-Wall Energy Guide

2025  

WallMaster WCVT10B10A Through-the-Wall Energy Guide

2025  

WallMaster WCVT16B30A Through-the-Wall Energy Guide

2025  

WallMaster WCVT12B30A Through-the-Wall Energy Guide

2025  

WallMaster WCVT12B10A Through-the-Wall Energy Guide

2025  

WallMaster WHVT14B33A Through-the-Wall Energy Guide

Sizing

Chassis Sizes for this Product

View basic chassis dimensions available below. See product brochure for more details.

H: 17 1/4 “ x W: 27 1/2“ x D: 23 1/4” WallMaster Model Dimensions Applies to model #’s: WCT08A10A, WCT10A10A, WCT10A30A, WCT12A10A, WCT12A30A, WCT16A30A, WET10A33A, WET12A33A, WET16A33A, WHT12A33A

Accessories

Accessories For This Product