
MRCOOL DIY | DIY 4th Generation | E Star | 12000 BTU | Ductless Mini-Split Air Handler 208-230V/60Hz
DIY 4th Generation | E Star | 12000 BTU | Ductless Mini-Split Air Handler 208-230V/60Hz
The MRCOOL® 4th Generation DIY 12K BTU Ductless Wall Mounted Air Handler is the perfect solution for efficient heating and cooling in spaces up to 500 sq. ft. When integrated with a compatible MRCOOL® DIY condenser, it can reach a 22 SEER efficiency rating, delivering exceptional energy savings and year-round comfort.
This air handler supports a range of operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP, ensuring you get tailored climate control for every season. With SmartHVAC WiFi functionality, you can operate the system remotely through your Apple or Android device, and it's fully compatible with Amazon Alexa and Google Assistant for hands-free voice control.
Installation is quick and simple thanks to its lightweight, compact build and included mounting plate. It also connects seamlessly to the MRCOOL Pre-Charged Quick Connect Line Set, which comes pre-filled with R-410A refrigerant—eliminating the need for vacuuming or charging. No special tools are required—just basic hand tools for a secure connection.
Key Features:
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12,000 BTU capacity – ideal for rooms up to 500 sq. ft.
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Achieves up to 22 SEER when paired with a compatible DIY condenser
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Five operation modes: COOL, HEAT, AUTO, DRY, and SLEEP
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SmartHVAC WiFi app for remote operation via Apple or Android devices
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Voice control ready with Amazon Alexa and Google Assistant
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DIY-friendly installation with Pre-Charged Quick Connect Line Set
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Includes DIY Pro™ Cable – protects wiring from outdoor elements
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7-year compressor / 5-year parts warranty; upgradeable to lifetime compressor warranty with registration
Upgrade your comfort and energy efficiency with the DIY 4th Generation | E Star | 12000 BTU | Ductless Mini-Split Air Handler 208-230V/60Hz, engineered for hassle-free installation and smart operation.
Specification
Product Type |
Wall Mount Air Handlers |
COOLING CAPACITY (BTU) |
12000 |
HEATING CAPACITY (BTU) |
12000 |
VOLTAGE (V) |
208-230 |
PHASE |
1 |
CYCLE |
60 |
MAX FUSE BREAKER (A) |
15 |
MIN CIRCUIT AMPACITY (A) |
3 |
MOUNT TYPE |
Wall |
COLOR |
White |
COLOR FAMILY |
White |
MAX COVERAGE AREA |
Up to 500 |
REFRIGERANT TYPE |
R-410A |
DECIBEL RATING (DBA) |
35 |
DECIBEL RATING LOW (DBA) |
25 |
DECIBEL RATING HIGH (DBA) |
40 |
INVERTER |
Yes |
LIQUID LINE SIZE |
1/4 |
SUCTION LINE SIZE |
1/2 |
BLOWER MOTOR RPM |
1050/850/650 |
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 |
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 |
NET DEPTH (IN) |
7.44 |
NET HEIGHT (IN) |
11.69 |
NET WIDTH (IN) |
31.57 |
NET WEIGHT (LBS) |
23.81 |
GROSS DEPTH (IN) |
16.34 |
GROSS HEIGHT (IN) |
13.98 |
GROSS WIDTH (IN) |
36.02 |
GROSS WEIGHT (LBS) |
34 |
Manual and Downloads
Brochure
Install Manual
Specifications
Remote Manual
Warranty Documents
AHRI Certificate
Energy Guide Certificate
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Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
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Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.

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