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MrCool DIY-12-HP Ductless Mini Split 12K Heat Pump 115 Volt with WiFi

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  • Overview
  • Tech Specs
  • Features
  • PDFS
  • Reviews


  • Model: DIY-12-HP
  • VOLTAGE: 115V/1
  • COOL AREA (SQ. FT.): 400

The MRCool DIY-12-HP Mini Split heat pump is the only ductless mini-split system on the market explicitly designed for amateur installation. You don't need special tools or training to install this high efficiency heat pump. The line sets precharged with R410A refrigerant, the quick hook-up electrical connections, and the quality engineering mean just about anyone can install a MRCOOL DIY in their home with no problem at all in only a few short hours. If you want great air comfort without paying an arm and a leg for installation, you want an easy-to-use MRCOOL DIY Series ductless heat pump.



  • Cooling: 12,000 BTU
  • Heating: 12,000 BTU
  • SEER: 17.5
  • EER: 10
  • Voltage 115V/1
  • Min Circuit Ampacity: 15 A
  • Refrigerant Type: R410A
  • Low Ambient Cooling: 5°F

Indoor Unit

  • Indoor Unit: DIY-12-HP-WMAH-115A
  • Dimensions (H x W x D): 11.69" X 31.57" X 7.44"
  • Net Weight: 18.7 lbs

Outdoor Unit

  • Outdoor Unit: DIY-12-HP-115A
  • Dimensions (H x W x D): 21.85" X 30.31" X 11.81"
  • Net Weight: 65 lbs

Line Sets

  • Lineset: 25 ft
  • Liquid Line Fitting: 3/8"
  • Liquid Line Size: 1/4"
  • Suction Line Fitting: 5/8"
  • Suction Line Size: 1/2"


  • Unit Includes: MRCOOL Diy condenser outdoor unit, Wall Mounted Air Handler indoor unit, 25 foot quick-connect line set and Communication wire, remote control, Wifi Connector for Smart Phone Co.
  • Easy Diy Installation: Precharged 410 Quick Connect Lineset - The included 25′ pre-charged lineset allows you to install this innovative ductless system without special tools, equipment, or training.
  • Remote App: WiFi Control - Control your DIY anywhere with your Apple or Android smart device and an internet connection.
  • Auto Restart: Never Lift a Finger - Power outage? Don’t worry, the MRCOOL DIY auto restart will have the unit running again in no time at all.
  • Leakage Detection: Protecting Your Investment - When the MRCOOL DIY detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.
  • Low Ambient Cooling: Cooling down to 5°F - This feature makes the MRCOOL DIY the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.
  • Sleep Mode: 24-Hour Comfort - We made Sleep Mode easy to program to save money, and let you sleep a little easier.
  • Gold Fin Condenser: Corrosion Resistant - Live on the coast? Don’t worry, our condenser is built to resist long term corrosion.
  • Louver Position Memory: Remembers So You Don’t Have To - Horizontal louver will automatically move to the same position as you set last time the unit was turned on.
  • Follow Me: Personalized Performance - Keep the remote close by, and MRCOOL Premier will track the air temperature around you to ensure you receive maximum comfort.
  • Auto Mode Feature: In the Auto mode,the mini split can logically choose the mode of Cooling,and Heating by sensing the difference between the actual ambient room temperature and the setting temperature on the remote control.
  • Dehumidifying Operation: In DRY mode, the system will reduce the humidity of the air in the room for increased comfort.The air conditioner will automatically cycle between cooling and fan only modes to dehumidify the air.

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