MRCOOL
MRCOOL E Star DIY 4th Gen 12k BTU Ductless Mini-Split Heat Pump Complete System
MRCOOL E Star DIY 4th Gen 12k BTU Ductless Mini-Split Heat Pump Complete System
SKU:DIY-12-HP-WM-115C25
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OVERVIEW
Introducing the latest in home comfort technology, with the 4th Generation MRCOOL® DIY 12K BTU, 22 SEER Ductless Heat Pump System.
This powerful single-zone system has the capability of heating and cooling an area up to 500 sq. ft. It comes complete with a 12K condenser, 12K air handler, and a 25 ft. line set pre-charged with R-410A refrigerant.
The line set also has quick connectors which require no special tools, equipment, or training to install. The MRCOOL DIY system also includes many features that make it stand out among its competitors.The first of which is its ability to achieve an outstanding 22 SEER efficiency rating allowing it to be Energy Star certified.
This system has many operating modes to select from to suit the needs of the user, including HEAT, COOL, DRY (dehumidification), and SLEEP. It also has the Follow Me function that adjusts the temperature of the room based on the temperature being read by the hand-held remote control. The DIY features the convenience of being able to operate its modes and functions with your smartphone by using the Smart HVAC app.
The MRCOOL mini split is the only system on the market to offer a limited lifetime compressor warranty.
Available sizes of MRCOOL DIY 4th Generation Ductless Mini-Split System
- 12,000 BTU - 550 Square Feet
- 18,000 BTU - 750 Square Feet
- 24,000 BTU - 1,100 Square Feet
- 36,000 BTU - 1,500 Square Feet
RESOURCES
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PRODUCT SPECIFICATIONS
Corrosion Resistance | Gold Fin® condenser: corrosion resistant - live on the coast? Don't worry, our condenser is built to resist long term corrosion |
Inverter | Variable-speed DC inverter compressor technology cuts operating costs |
Refrigerant | R-410A environmentally friendly refrigerant |
Warranty | Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty |
Line sizes | Line sizes 1/4”, 1/2” & 3/8”, 5/8” |
SEER | 22 |
SEER2 | 22.5 |
EER | 12.5 |
EER2 | 12.5 |
COP 47 | 3.36 |
HSPF | hspf4/hspf5 : 11.5/9 |
HSPF2 | hspf2-4/hspf2-5 : 9/7 |
CFM | 305.88/211.76/147.06 |
TONNAGE | 1 |
COOLING CAPACITY | 12000 BTU |
HEATING CAPACITY | 12000 BTU |
VOLTAGE | 115 V |
PHASE | 1 |
CYCLE | 60 Hz |
MAX FUSE BREAKER | 25 A |
MIN CIRCUIT AMPACITY | 19 A |
COLOR | White |
COLOR FAMILY | White |
RATED LOAD | 0.53 A |
MAX COVERAGE AREA | Up to 500 sqft |
ZONE CAPACITY | 1 |
REFRIGERANT TYPE | R-410A |
REFRIGERANT VOLUME | 38.10 oz |
DECIBEL RATING | 37/31/23.5 |
DECIBEL RATING LOW | 23.5 dBA |
DECIBEL RATING HIGH | 37 dBA |
AIR FLOW DIRECTION | 4-W |
OSCILLATION | Yes |
INVERTER | Yes |
MIN AMBIENT COOL | -13F - 122F |
MIN AMBIENT HEAT | -13F - 75F |
LINE SET LENGTH | 25ft |
MAX LINESET LENGTH | 75 ft |
LIQUID LINE SIZE | 1/4 in |
SUCTION LINE SIZE | 1/2 in |
COMPRESSOR MOTOR TYPE | Rotary |
CONDENSER FAN MOTOR RPM | 850/600 |
BLOWER MOTOR RPM | 1100/850/700 |
AUXILIARY HEATER INCLUDED | No |
AUXILIARY HEATER AVAILABLE | No |
FAN ONLY OPTION | Yes |
QUIET MODE | Yes |
AUTO COOL | Yes |
WIFI COMPATIBILITY | Yes |
APP COMPATIBILITY | Yes |
WORKS WITH IOS | Yes |
WORKS WITH ANDROID | Yes |
REMOTE CONTROL INCLUDED | Yes |
UL LISTED | Yes |
ENERGY STAR CERTIFIED | Yes |
AHRI CERTIFIED | Yes |
REGISTERED WARRANTY | Limited Lifetime Compressor |
BASE WARRANTY | 5-year Parts/7-year Compressor |
BASE PARTS WARRANTY | 5-year Parts |
REGISTERED COMPRESSOR WARRANTY | Limited Lifetime Compressor |
BASE COMPRESSOR WARRANTY | 7-year Compressor |
HAS BATTERIES | Yes |
CONTAINS ELECTRONICS | Yes |
CONTAINS CHEMICALS | Yes |
CONTAINS AEROSOL | Yes |
CONTAINS COMPRESSED GAS | Yes |
PROPOSITION 65 WARNING | Yes |
RESTRICTED STATES | GU;PR;VI |
CONDENSER DEPTH | 11.93 in |
CONDENSER HEIGHT | 21.85 in |
CONDENSER WIDTH | 30.12 in |
CONDENSER WEIGHT | 65.70 lbs |
AIR HANDLER DEPTH | 7.44 in |
AIR HANDLER HEIGHT | 11.69 in |
AIR HANDLER WIDTH | 31.57 in |
AIR HANDLER WEIGHT | 24.03 lbs |





The installation process was smooth, and the system operates quietly. It's a game-changer in terms of comfort compared to our old HVAC system.
The customer support representatives were patient and knowledgeable. They took the time to explain the features of my heat pump and offered helpful tips for optimal performance.
The pre-charged refrigerant lines and clear instructions simplified the installation. We were able to cut down on installation time compared to other systems.
Our energy bills have significantly decreased since switching to a heat pump. It's environmentally friendly and cost-effective.