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Carrier Performance 40MAQB09B3
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Carrier 40MAQB12B3

40MAQB12B--3 33" Indoor Mini-Split Ductless System with 12000 Cooling BTU Capacity, 380 CFM and 42 dBA Sound Level: White
★★★★★ ★★★★★

40MAQB12B--3 33" Indoor Mini-Split Ductless System with 12000 Cooling BTU Capacity, 380 CFM and 42 dBA Sound Level: White

In Stock

If an item is currently in stock in our warehouse, it will be marked with the words "In-Stock". These products will ship once your order is processed (usually within 24 hours).

Quick Ship Eligible

Items labeled Quick Ship will ship within 2 business days from our East Coast warehouse. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items qualify for Quick Ship, the order will ship when all items are available to ship. Quick Ship may not apply to multiple quantities of the same product.

Only 3 available

Quick Specs: View More

  • Sleep Mode
  • Turbo Mode

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This Performance Series high wall indoor unit has 12,000 cooling btu capacity with an airflow of 380 CFM. The ductless system offers an inexpensive and creative solutions for installation problems, such as spaces that have no ductwork, any place where preserving the original structure is essential and commercial add-on jobs where existing air conditioners system cannot be stretched. Available at AppliancesConnection


  • Modes: Cool, Heat, Dry, Fan, Auto
  • Auto Louver Mode
  • Turbo mode
  • 4 fan speeds
  • Sleep Mode
  • Follow Me
  • Quiet operation: as low as 27 decibels (Quietest size within each model group during low fan-speed operation)
  • 46° F Heating Mode (heating setback)
  • 10-year parts limited and 10-year compressor limited warranties to the original purchasing owner upon timely registration. If properly registered within ninety (90) days after original installation, parts are warranted to the original purchaser for a period of 10 years. Otherwise, parts warranty is 5 years. For other applications a 7-year parts and 7-year compressor limited warranties apply. See warranty certificate for details. 

*Note: This is an indoor unit of a mini-split system and cannot operate without an outdoor unit. This unit can match 38MGQ as part of the MG multi-zone system.


Width: 32.9"
Exterior Width: 33"
Height: 11"
Depth: 7.8"
General Specifications
Color: White
Type: Mini Split
Cooling Capacity (BTU): 12000
Maximum Air Flow: 380
Decibel Rating: 42 dBA
Refrigerant Type: R-410a
Number of Cooling Speeds: 4
Wireless Remote Controller: Included
SEER: 23.5
Other Specifications
Air Throw Data: 23'
AirFlow CFM Options: 210 / 290 / 360 / 380
Liquid Pipe Connection Size:  .25" 
Suction Pipe Connection Size: .5"
Motor HP: .027
Electrical Requirements
Volts: 230/208 Volts
Frequency: 60 Hz
Phase: 1
Maximum Fuse Size: 15
Amps: 15 Amps


Turbo Mode

Turbo Mode

Turbo Mode for that quick cool-down when you first turn it on.

Wireless Remote Controller

Wireless Remote Controller

Allows the temperature to be monitored and adjusted (within the line-of-sight).

Follow Me

Follow Me

This feature allows the remote control to be used as the temperature sensor to operate how cool the system should be. This allows the room temperature to be controlled at the location of the remote.

Sleep Mode

Sleep Mode

Sleep Mode will turn your air conditioner off when you don`t need it, conserving energy and saving you money.

Associated Service Corporation ASA

10 Year Major Component Warranty


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  • Brand:Carrier
  • SKU:40MAQB12B3
  • UPC:694157035840
  • Stock Id:684967
  • Product Number:40MAQB12B--3
  • Series:Performance


  • Type:Mini Split
  • Color:White


  • Cooling Capacity (BTU): 12000
  • Wireless Remote Controller:Included
  • Volts:230/208 Volts
  • Amps:15 Amps
  • Phase:1
  • Frequency:60 Hz
  • SEER:23.5
  • Decibel Rating:42 dBA
  • Number of Cooling Speeds:4
  • Refrigerant Type:R-410A
  • Maximum Air Flow:380


  • Width:32.9"
  • Height:11"
  • Depth:7.8"

    Technical Details

  • Exterior Width:33"
  • Motor HP:.027
  • Maximum Fuse Size:15
  • Air Throw Data:23'
  • Liquid Pipe Connection Size:.25"
  • Suction Pipe Connection Size:.5"
  • AirFlow CFM Options:210 / 290 / 360 / 380
  • Weight:82.50 lbs