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Carrier Performance Series
12,000 BTU Mini-Split Indoor Air Conditioner

product highlights
Energy Star Rated
Energy Star Rated Energy Star products save energy without sacrificing on performance. They’re great for the environment, and they lower your monthly utility bills. Plus, some customers can receive tax breaks or rebates for buying Energy Star-rated appliances.

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Product Information
Brand: Carrier
Series: Performance Series
Model: 40MAQB12B3
AC System Type: Mini Split
Component Type: Indoor Unit
Operation: Cooling with Heat Pump
Placement Type: Wall Mount
Wireless Remote Control(s) Included: Included
Wired Remote Control(s) Included: Optional
Thermostat Range - Cooling (F°): 62-86
Thermostat Range - Heating (F°): 62-86
BTU Class: 12,000 BTU
Heating Capacity: 13,500 BTU
Electrical Data
Power Source V / Hz / Ø: (208/230/60/1)
Rated Amps: 15 Amps
Energy Star Certified: Yes
Airflow Rate Quiet (CFM): 210 CFM
Airflow Rate Low (CFM): 300 CFM
Airflow Rate Medium (CFM): 360 CFM
Airflow Rate High (CFM): 380 CFM
Operating Sound Level - Low (dB): 27 dB
Operating Sound Level - Medium (dB): 34 dB
Operating Sound Level - High (dB): 42 dB
Piping Connections
Liquid Line Outer Diameter: 1/4 Inch
Suction Line Outer Diameter: 1/2 Inch
Refrigeration System
Piping Length (No Additional Refrigerant): 82 Ft.
Control Lock Function (Concealed Duct Only): No
Human Detection Technology: Yes
Room-Freeze Protection: Yes
Filter Clean Notification: No
Hot Start Heating System (Heat Pumps Only): No
Program Timer: Yes
Manual Power Switch: No
Defrost/Deicing: Yes
Air Filter: Yes
Filters Washable?: Yes
Filters Anti-microbial?: No
Restart Delay: Yes
Self-diagnosis: No
Condensate Sensor Connection: No
Soft Start: No
Quiet/Sleep Mode: Yes
Self-Cleaning Indoor Coil: Yes
Built-in Drain Pump (Indoor Unit): No
Hidden Display: No
Surge Cool/Heat: No
Auto Operation: Yes
Auto Restart on Power Failure: Yes
Auto-changeover: No
Automatic Louver Adjustment: Yes
4-Way Swing: No
Dehumidifying Mode: Yes
No. of Fan Speeds: 4
Technical Details
ADA Compliant: No
Voltage: 230/208 Volts
Dimensions & Weights
Width: 32 9/10 Inch
Depth: 7 4/5 Inch
Height: 11 Inch
Net Weight: 19.2 Lbs.
Shipping Weight: 27 Lbs.
EAN: 0694157035840
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From the Manufacturer

Carrier 12,000 BTU Wall-Mounted Indoor Air Conditioner with Heat Pump
This sleek and energy efficient air conditioner is designed to optimize your temperature control. Personalize air flow rate to your favorite preferences with 4-fan speeds to choose from - auto louvers enhance circulation to evenly circulate through the entire room. There's also a temperature sensor in the remote itself, to reliably measure and calibrate temperature based on your immediate surroundings, rather than the air next to the air conditioner.

Manuals & Guides

  • Features
  • Reviews
  • Warranty Info


Wall Mount Indoor Air Conditioner

Wall Mount Indoor Air Conditioner

Fan Features
4 Fan Speeds

Multiple fan settings provide greater circulation control.

Turbo Mode

Provides an initial blast of high intensity air circulation to rapidly cool a room.

Dehumidification Mode

Removes humidity in the air while providing heating or cooling.

Auto Louver Mode

Louvers automatically swing back and forth for a more evenly heated or cooled room.

46° F Heating Mode

Air conditioner will automatically operate in heat function when outside temperatures dip below 46° F to prevent pipes from freezing.

Carrier Performance Series 40MAQB12B3 Reviews

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.