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12,000 BTU Carrier Infinity 29.5 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R454B | 230V

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Carrier

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Model

37MPRAQ12AA3 / 45MPHAQ12XA3

ID

213409

Was $4,220.00
Your Low Price $3,899.99
 
Product Features
  • 12,000 BTU Comfort For 600 Sq Ft
  • Long-Term Comfort Powered By 29.5 SEER2
  • Wireless Remote Included
  • Cold Climate Heating Down To -22°F
  • Heat Pump Heating & Cooling
  • 10-Year Parts Warranty
Customize 12,000 BTU Carrier Infinity 29.5 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R454B | 230V
12,000 BTU Carrier Single Zone Condenser - R454B
12,000 BTU Carrier Single Zone Condenser - R454B
12,000 BTU Carrier Single Zone Condenser - R454B   + $2,699.99
12,000 BTU Carrier Infinity Single Zone Mini Split Air Handler - R454B
12,000 BTU Carrier Infinity Single Zone Mini Split Air Handler - R454B
12,000 BTU Carrier Infinity Single Zone Mini Split Air Handler - R454B   + $1,200.00
15 feet - 1/4" and 3/8" Line Set & Control Wire
17" Wall Mount Bracket for Mini Split Systems
Installation Kit for Condensers
Carrier Wi-Fi Interface Kit
12,000 BTU Carrier Infinity 29.5 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 37MPRAQ12AA3 / 45MPHAQ12XA3

$3,899.99

The easy way to add comfort to a single room, this system is designed for convenient, personalized temperature control.

Designed for spaces up to approximately 600 sq. ft., this ductless mini-split system provides comfortable heating and cooling for bedrooms, home offices, living rooms, guest rooms, and other medium-sized spaces. With quiet operation and convenient comfort modes, it offers dependable year-round temperature control without the need for traditional ductwork.

Key Benefits

  • Quiet Performance – Enjoy quiet indoor operation for a more peaceful and comfortable space.
  • Flexible Comfort Modes – Choose Cool, Heat, Dry, Fan, or Auto mode to match your comfort needs.
  • Variable-Speed Inverter – Adjusts performance as needed to help maintain consistent, efficient comfort.

Energy Smart Performance

With a 29.5 SEER2 rating and variable-speed inverter technology, this system adjusts its operation to match changing comfort needs. This helps deliver efficient, consistent heating and cooling while reducing unnecessary energy use.

Wide Temperature Operating Range

Designed for cooling operation from -22°F to 122°F and heating operation from -22°F to 75°F, this system provides dependable comfort across a broad range of outdoor conditions.

Advanced R454B Refrigerant Efficiency

This system uses R454B refrigerant as part of its modern heat pump design. Combined with efficient inverter operation, it provides an updated solution for year-round residential heating and cooling.

What's Included

  • 12,000 BTU Outdoor Condenser (37MPRAQ12AA3)
  • 12,000 BTU Wall Mount Air Handler (45MPHAQ12XA3)
  • Wireless Remote Control
  • Installation Manual, Owner's Guide, and Supporting Documentation

Recommended Accessories

  • Line Set + Control Wire:
    • 15FT - 201813 / CW-144-15
    • 25FT - 366390 / CW-144-25
    • 30FT - 216740 / CW-144-30
    • 35FT - 366395 / CW-144-35
    • 50FT - 366396 / CW-144-50
  • Mounting Options:
    • 17" Wall Mount Bracket for Outdoor Condensers (HW-600)
    • 18" x 38" x 3" Concrete Equipment Pad with Risers Kit (87762 / EL1838-3)
  • Cielo Breez Max Mini Split Thermostat with WiFi (BM101WA)
  • Install Kit with Surge Protector (MSK001)

Warranty

This system includes a 10-year parts limited warranty when registered within 90 days of purchase.

Installation Kit for Condensers

Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.

What’s Included:

  • 3/4" x 6' Electrical Whip – SKU: 84138
  • 60A Non-Fused Disconnect – SKU: 83335
  • Surge Protector – SKU: ICM517
  • CPS Charging Adapter – SKU: 87-AD87
  • Telescoping Wall Sleeve – SKU: NFP-75

Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!

12,000 BTU Carrier Infinity Single Zone Mini Split Air Handler - R454B

Smart Comfort in a Sleek Wall-Mounted Design with Efficient Heating and Cooling That Delivers Personalized Indoor Comfort While Complementing Your Space.

Designed to deliver comfortable heating and cooling throughout spaces up to 600 sq. ft., this indoor air handler pairs with a compatible Carrier outdoor unit to create a complete mini split system. Its ductless design offers flexible installation while providing efficient, personalized comfort where you need it most.

Key Benefits

  • Smooth, low-noise performance – Operates at just 19 dB for quiet indoor comfort.
  • Comfort that fits your home – Wall-mounted design saves space while delivering comfortable airflow.
  • Simple control with included remote – Easily adjust settings with the included wireless remote control.
  • WiFi Compatibility Available – Pair with a compatible Wi-Fi adpater to control your comfort remotely from your smartphone.

Warranty

This system includes a 10-year parts limited warranty when registered within 90 days of purchase.

12,000 BTU Carrier Single Zone Condenser - R454B

Enjoy dependable year-round comfort with a mini-split system engineered for efficient heating and cooling, helping create the ideal indoor environment in every season.

Enjoy year-round heating and cooling in spaces up to 600 sq. ft. with this ductless mini split heat pump. A great fit for bedrooms, home offices, living areas, and other smaller spaces, it provides efficient comfort without traditional ductwork. The R454B outdoor unit pairs with compatible Carrier indoor air handlers for a complete system.

Key Benefits

  • Energy-efficient SEER2 performance – A 29.5 SEER2 rating supports efficient cooling and helps keep energy use in check.
  • Modern R454B refrigerant design – R454B refrigerant provides a contemporary lower-GWP option for modern HVAC systems.
  • Reliable heating and cooling in extreme climates – Operates reliably across temperatures from -22°F to 122°F.
  • Adaptive speed compressor technology – Carrier ductless systems continually adjust the compressor speed as conditions change—for consistent comfort with lower energy usage.

Warranty

This system includes a 10-year parts limited warranty when registered within 90 days of purchase.

15 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 15-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 15 ft. insulated refrigerant line set
  • 15 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
Carrier Wi-Fi Interface Kit

Carrier KSAIF0701AAA Wi-Fi Interface Kit

Designed for Carrier and compatible ductless HVAC systems, including Comfortmaker, Midea, and Tempstar, the KSAIF0701AAA enables remote control of your system via Wi-Fi with an easy-to-use interface. Features include:

  • Wi-Fi connectivity for remote control using Carrier CliMate app
  • Plug-and-play installation with indoor unit control board
  • Supports highwall, cassette, and console units
  • Over-the-air firmware updates
  • Secure and reliable wireless communication

Dimensions: 3.9 in. x 2.3 in. x 1.1 in. (99 x 58 x 28 mm)

Compatible with various Carrier ductless HVAC systems. Ideal for residential and light commercial applications.

25 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 25-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 25-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 25 ft. insulated refrigerant line set
  • 25 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
30 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 30-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 30-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 30 ft. insulated refrigerant line set
  • 30 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
17" Wall Mount Bracket for Mini Split Systems

This wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 17” long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.

Features:
  • 17” Arm Length
  • Weight capacity of 220 lbs per arm
  • Bolts and anti-vibration washers included

No Return Policy

All sales of this product are final and are non-refundable.

35 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 35-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 35-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 35 ft. insulated refrigerant line set
  • 35 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
Equipment Pad and Risers Kit

E Lite Condenser Pad and Risers

E Lite Condenser Pad

E Lite Condenser Pad is designed to provide solid support for air conditioning condensers. It's made from sturdy polypropylene, striking a balance between lightness and stability. Its robust design ensures a level ground without the need for extra components.

Key Features:

  • Reliable Support: Abundance of ridges for stable ground support.
  • Durable and Lightweight: Tough yet not excessively heavy, thanks to polypropylene construction.
  • Anti-Slip: The surface prevents slipping, and rounded edges enhance safety.
  • Simple Appearance: Gray color with size labels.
  • Versatile Use: Suitable for condensers, pipes, ducts, cables, and more.

E Lite Risers

E Lite Risers complement the Condenser Pad, allowing you to adjust your setup as needed. They are constructed from weather-resistant PVC for outdoor use.

Key Features:

  • Weather Resistance: Made from tough PVC for long-lasting performance.
  • Secure Setup: The track securely holds bolts in place.
  • Bolts Included: Each set comes with two bolts.
  • Strong Support: Capable of handling loads of up to 397 pounds.

E Lite Condenser Pad and Risers offer reliable support without any complications. They are built to last and deliver efficient performance. Consider E Lite for your support needs – it's a practical solution for your projects.

No Return Policy

All sales of this product are final and are non-refundable.

50 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 50-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 50-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 50 ft. insulated refrigerant line set
  • 50 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
More Information
12,000 BTU Carrier Infinity Single Zone or Multi Zone Wall Mount Mini Split Air Handler - R454B | 230V
FeatureSpec
SKU45MPHAQ12XA3
Weight (in lbs)28.22
Brand/ManufacturerCarrier
UPC605468354469
Cooling BTU12,000 BTU
Heating BTU12,000 BTU
Maximum CFM153 - 559.2
Decibel Level (dBA)19 - 41.5
RefrigerantR454B
HSPF214.5
SEER2 (Efficiency)29.5
EER214.3
Liquid Line1/4"
Suction Line3/8"
Electrical208-230V | 60 HZ | 1 Phase
BTU/Tonnage12,000 BTU/1 Ton
Mini Split TypeWall Mounted
Height12.56"
Width37.99"
Depth9.41"
WarrantyResidential Warranty: 10 Year Limited on Parts with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
12,000 BTU Carrier Infinity Single Zone Mini Split Heat Pump Condenser - R454B | 230V
FeatureSpec
SKU37MPRAQ12AA3
Weight (in lbs)99.65
AHRI Certificate Number215413143
Brand/ManufacturerCarrier
UPC605468498644
Cooling BTU12,000 BTU
Heating BTU12,000 BTU
Maximum CFM1472.3
Decibel Level (dBA)57
RefrigerantR454B
HSPF214.5
SEER2 (Efficiency)29.5
EER214.3
Liquid Line1/4"
Suction Line3/8"
Electrical208-230V | 60 HZ | 1 Phase
Max Breaker Size20A
BTU/Tonnage12,000 BTU/1 Ton
Zone CompatibilitySingle Zone
Height26.5"
Width35.04"
Depth13.46"
WarrantyResidential Warranty: 10 Year Limited on Parts with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
E Lite Equipment Pad and Risers Kit 18" x 38" x 3"
FeatureSpec
SKU87762 / EL1838-3
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Height3"
Width18"
Depth38"
Safety InformationPROPOSITION 65 WARNING
Installation Kit for Condensers - Accessory Set
FeatureSpec
SKUMSK001
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
17" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKUHW-600
Weight9.2
ManufacturerOnline Supply
Length17"
Height20"
Width6"
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 15 feet
FeatureSpec
SKU201813 / CW-144-15
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Liquid Line1/4"
Suction Line3/8"
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 25 feet
FeatureSpec
SKU366390 / CW-144-25
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Length25'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 30 feet
FeatureSpec
SKU216740 / CW-144-30
Weight (in lbs)30
Brand/ManufacturerOnline Supply
UPCna
Length30'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 35 feet
FeatureSpec
SKU366395 / CW-144-35
Weight (in lbs)35
Brand/ManufacturerOnline Supply
UPCna
Length35'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 50 feet
FeatureSpec
SKU366396 / CW-144-50
Weight (in lbs)45
Brand/ManufacturerOnline Supply
UPCna
Length50'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Carrier Wi-Fi Interface Kit
FeatureSpec
SKUKSAIF0701AAA
Weight (in lbs)1
Brand/ManufacturerCarrier
RefrigerantR454B
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Customer Questions
What happens if it arrives damaged?
If you are present during drop-off and you see obvious signs of damage or rough handling in transit - please ask the driver to wait while you inspect the equipment. If it is damaged badly enough that you believe it can not function, you have the right to refuse the damaged portion of the shipment. If you discover the damage after the driver has left, take photos of the damage and send them to customerservice@hvacdirect.com. Please refer to your order number in the email. This starts the process and one of our representatives will be in touch with you promptly.
How can I find an installer?
It’s easier than you think – the key is to find an independent contractor or small company as opposed to a larger HVAC service. A one or two person outfit will do the work more quickly and cheaply than a bigger company, too. Yelp.com, Thumbtack.com, and Porch.com are websites are designed to help you connect with a professional in your area. You could also place a call to the last professional who did work on your home and see if they have any recommendations.
Who makes Carrier mini splits?
Carrier mini splits come from one of the most recognized names in HVAC, offering reliable, energy-efficient solutions for year-round comfort.
Can I install a Carrier mini split myself, or do I need a professional?
Carrier mini splits require professional installation. A licensed HVAC contractor ensures proper sizing, refrigerant handling, and warranty protection.
What kind of warranty comes with a Carrier mini split?
Most Carrier mini splits include a 10-year limited parts warranty when registered, giving you long-term peace of mind. Warranty terms may vary by model and installer.
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