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Looking for a minimal way to distribute heated or cooled air through your home? The 12k BTU MrCool DIY Ductless Wall Mounted Air Handler - 3rd Generation 240v may be the piece of equipment you need. Designed to work with a multi-zone condenser, the air handler will fit into virtually any home with its convenient wall mounted plate and delivers 12,000 BTU heating capacity.
Accessories
Description / Documents

Looking for a minimal way to distribute heated or cooled air through your home? The 12k BTU MrCool DIY Ductless Wall Mounted Air Handler - 3rd Generation 240v may be the piece of equipment you need. Designed to work with a multi-zone condenser, the air handler will fit into virtually any home with its convenient wall mounted plate and delivers 12,000 BTU heating capacity.

This 12k BTU MrCool DIY Ductless Wall Mounted Air Handler - 3rd Generation 240v has two main operating modes: manual and auto. We recommend auto mode, since the unit will automatically select cooling, heating, or fan-only operation based on the temperature you set and the current room temperature. Switch the unit into manual mode by simply flipping the switch on the front panel into emergency operation mode.

Two more operating features included with this air handler are the sleep and drying operations.

You can save both energy and money with the sleep mode by limiting usage in an eight hour window when your family is asleep. In sleep mode, the temperature will increase when cooling or decrease when heating 2 degrees for the first two hours after setting the unit to sleep mode. For the six additional hours, the air handler will operate at the more moderate temperature before the sleep window ends.

With the drying operation, you can dehumidify the air handler while keeping your home at just the right temperature. To keep itself dry, the air handler intermittently switches the cooling or fan option on and off.


Should the power go out, this 12k BTU MrCool DIY Ductless Wall Mounted Air Handler - 3rd Generation 240v will stop operating. Once power returns, the unit will restart automatically using its previous settings.

You can easily read any alerts or pertinent information for your air handler from the digital display, which can be turned off if you prefer an interruption-free space. The mute function turns both the LED display and audible alerts off.

You have the option to operate this 12k BTU MrCool DIY Ductless Wall Mounted Air Handler - 3rd Generation 240v wirelessly with a remote, an app on your smartphone, or with Amazon Alexa or Google Assistant. Simply connect the wireless control module into the USB port located on the back of the front cover. After this step, you are able to control the unit from your choice of device. With a wireless connection, it is easy to keep your home at a temperature that is comfortable for you.

If you keep the remote for the unit close by, you can use the Follow Me function, which tracks the air temperature around you and adjusts the air handler’s operation so you are as comfortable as possible.

This 12k BTU MrCool DIY Ductless Wall Mounted Air Handler - 3rd Generation 240v uses an easily accessible fresh air filter to keep the air as fresh as possible. After 240 hours of operation, the unit will alert you to clean the air filter to ensure that your home’s air quality is at its best and that the unit can continue to operate efficiently. After 2,880 hours, the unit will display an alert that the air filter should be replaced.

Customer Reviews / Q&A
Specifications

System Overview

Model DIY-12-HP-WMAH-230B
UPC 810035931794
Product Height (in) 11.69
Configuration Wall Mounted
Product Length (in) 7.44
Air Flow Direction Horizontal
Product Width (in) 31.57
Blower Motor Variable Speed
Cooling Capacity 1 Ton
Electrical Phase 1-Phase
Line Set Connection Type Quick Connect
Liquid Line Size 1/4 inch
Weight (lbs) 37.040000
Series DIY
Special Features WiFi Capable
Suction Line Size 1/2 inch
System Application Type Ductless Split Systems
Voltage 240
Warranty 5 Year Parts
Parts

HVAC Parts & Accessories

  1. Cross Flow Fan for MrCool Ductless Wall Mounted Air Handler DIY/ADVANTAGE 9K & 12K

    Price:

    $131.58
  2. Display Board for MrCool Ductless Wall Mounted Air Handler 9k 12k & 18k

    Price:

    $64.16
  3. Bearing Holder for MrCool Ductless Wall Mounted Air Handler

    Price:

    $55.52
  4. Filter for MrCool Ductless Wall Mounted Air Handler 9k & 12k

    Price:

    $58.88
  5. Display Box Subassembly for MrCool Ductless Wall Mounted Air Handler

    Price:

    $157.54
  6. Room Temperature Sensor for MrCool Ductless Wall Mounted Air Handler

    Price:

    $55.30
  7. Pipe Temperature Sensor for MrCool Ductless Wall Mounted Air Handler

    Price:

    $53.69
  8. Quick Connect Fitting 06 for MrCool Ductless Heat Pump Condenser DIY Series

    Price:

    $105.67
  9. Quick Connect Fitting 12 for MrCool Ductless Heat Pump Condenser DIY Series

    Price:

    $106.46
  10. Electronic Control Box Subassembly for MrCool Wall Mounted Air Handler DIY-12-HP-WMAH-230B

    Price:

    $132.29
  11. Stepper Motor for MrCool Ductless Wall Mounted Air Handler

    Item #:: HAP12170

    Model: 11002010000143

    Price:

    $75.23
  12. Blower Motor for MrCool Ductless Wall Mounted Air Handler 9k & 12k

    Price:

    $137.42
    Out of stock
  13. Display Board Subassembly for MrCool Ductless Wall Mounted Air Handler

    Price:

    $53.66
  14. Insulated axis for MrCool Ductless Wall Mounted Air Handler

    Price:

    $53.38
  15. Remote controller for MrCool Ductless Wall Mounted Air Handler

    Price:

    $67.33

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What's included

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