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Carrier 40MAQB12B1

40MAQB12B--1 33" Performance Series Energy Star Mini Split Ductless Indoor Unit with 12000 Cooling BTU and 12000 Heating BTU, Easy and Fast Installation: White Write a review

40MAQB12B--1 33" Performance Series Energy Star Mini Split Ductless Indoor Unit with 12000 Cooling BTU and 12000 Heating BTU, Easy and Fast Installation: White


Items that are currently in-transit to our warehouse, are currently in-stock at a drop-ship vendor’s, or manufacturer's warehouse will be marked as "Available". These products will ship once your order is processed (usually within 24-48 business hours). For any exceptions to this timeframe, an ETA (Estimated Time of Arrival) for your order will be emailed with accurate shipping dates in order to ensure that you are always updated and informed as to when your order will arrive at its final destination.

Quick Specs: View More

  • Energy Star: Yes

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Cooling Capacity (BTU) Options: 12000

Carrier 40MAQB12B1

40MAQB12B1 12000 $369.00

Carrier 40MAQB09B1

40MAQB09B1 9000 $359.00

For the same price, upgrade to Carrier 40MAQB09B3

This Carrier mini-split indoor unit from the Performance series offers 12000 cooling and heating BTU, fast and easy to install with built-in reliability. Providing individual room comfort, this indoor unit features secure operation, economical operation, easy-to-use controls and has simple servicing and maintenance. Available at AppliancesConnection


Low Sound Levels
When noise is a concern, the ductless split systems are the answer. The indoor units are whisper quiet. There are no compressors indoors, either in the conditioned space or directly over it, and there is none of the noise usually generated by air being forced through ductwork.

Secure Operation
If security is an issue, outdoor and indoor units are connected only by refrigerant piping and wiring to prevent intruders from crawling through ductwork. In addition, since 38MAQ units can be installed close to an outside wall, coils are protected from vandals and severe weather.

Fast Installation
This compact ductless split system is simple to install. A mounting bracket is standard with the indoor units and only wire and piping need to be run between indoor and outdoor units. These units are fast and easy to install ensuring minimal disruption to customers in the home or workplace. This makes the 38/40MAQ ductless split systems the equipment of choice, especially in retrofit situations.

Simple Servicing and Maintenance
On all indoor units, service and maintenance expense is reduced due to easy- to- use cleanable filters. In addition, these high wall systems have extensive self- diagnostics to assist in troubleshooting.

Built-In Rebiability
The high wall indoor units include protection against freeze- up and high evaporator temperatures on heat pumps. The condensing units on heat pumps are protected by a three minute time delay before the compressor will start the over- current protection and the high temperature protection.

Individual Room Comfort
Maximum comfort is provided because each space can be controlled individually based on usage pattern. The air sweep feature provided permits optimal room air mixing to eliminate hot and cold spots for occupant comfort. In addition, year- round comfort can be provided with heat pumps.

Economical Operation
The ductless split system design allows individual room heating or cooling when required. There is no need to run large supply- air fans or chilled water pumps to handle a few spaces with unique load patterns. In addition, because air is moved only in the space required, no energy is wasted moving air through ducts.

Easy-to-Use Controls
The high- wall units have microprocessor- based controls to provide the ultimate in comfort and efficiency. The user friendly wireless remote control provides the interface between user and the unit.

*Note: This is a mini split indoor unit and will not operate properly without an outdoor unit.


Width: 32.9"
Exterior Width: 33"
Height: 11"
Depth: 7.8"
General Specifications
Color: White
Type: Mini Split
Cooling Capacity (BTU): 12000 BTU 
With Heat: Yes
Heating Capacity (BTU): 12000 BTU 
Maximum Air Flow: 380 CFM
Decibel Rating: 42 dBA
Refrigerant Type: R410a
Number of Cooling Speeds: 4
Wireless Remote Controller: Included
SEER: 21.5 
Other Specifications
EER: 13
Ait Throw Data: 23'
Face Area: 2.2 sq. ft.
AirFlow CFM Options: 210 / 290 / 360 / 380
Liquid Line Fitting: .25" 
Suction Line Fitting: .5" 
Motor HP: .027
Electrical Requirements
Volts: 115 Volts
Frequency: 60 Hz
Phase: 1
Maximum Fuse Size: 20
Amps: 15 Amps


Wireless Remote Controller

Wireless Remote Controller

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

ENERGY STAR® Qualified

ENERGY STAR® Qualified

Saves Energy. Saves You a Few Bucks. And Saves the Environment. Making it a shoe-in for the Energy Star Qualified badge.

Associated Service Corporation ASA

10 Year Major Component Warranty


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  • Brand:Carrier
  • SKU:40MAQB12B1
  • UPC:694157035710
  • Stock Id:687461
  • Product Number:40MAQB12B--1
  • Series:Performance


  • Type:Mini Split
  • Color:White


  • Cooling Capacity (BTU): 12000
  • Heating Capacity (BTU):12000 BTU
  • Wireless Remote Controller:Included
  • Volts:115 Volts
  • Amps:15 Amps
  • Phase:1
  • Frequency:60 Hz
  • EER:13
  • SEER:21.5
  • Decibel Rating:42 dBA
  • Number of Cooling Speeds:4
  • Refrigerant Type:R410a
  • Maximum Air Flow:380 CFM


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

    Technical Details

  • Energy Star:Yes
  • Exterior Width:33"
  • Motor HP:.027
  • With Heat:Yes
  • Maximum Fuse Size:20
  • AirFlow CFM Options:210 / 290 / 360 / 380
  • Liquid Line Fitting:.25"
  • Suction Line Fitting:.5"
  • Face Area:2.2 sq. ft.
  • Ait Throw Data:23'
  • Weight:19.00 lbs