The MRCOOL® DIY® Select 12K Single Zone Mini Split System provides efficient heating and cooling for smaller residential and light commercial spaces. With a 12,000 BTU capacity, 17.5 SEER2 efficiency, and a 1-ton configuration, this system is designed for spaces of approximately 400–600 square feet while delivering dependable year-round comfort.
Built around MRCOOL®'s DIY® installation concept, the system combines a wall-mounted air handler with a pre-charged outdoor condenser and an 11.5-foot quick-connect line set. The compact line set is especially well suited for back-to-back installations, while the system's R-454B refrigerant and inverter technology provide modern performance with convenient homeowner-oriented installation.
The DIY® Select system also features built-in Wi-Fi compatibility, smart control through the MRCOOL SmartHVAC app, and compatibility with Amazon Alexa and Google Assistant. With a washable filter, multiple fan and comfort modes, AHRI certification, and separate parts and compressor warranties, this system offers a practical combination of affordability, convenience, and reliable performance.
What's Included
-
-
MRCOOL DIY Select Single Zone Mini Split Condenser with 11.5 ft. Pre-Charged DIY Line Set, DIYS-12-HP-C-115A11-O -
MRCOOL DIY Select 12,000 BTU Single Zone Wall Mount Air Handler, DIYS-12-HP-WMAH-115A13-O
-
Specifications:
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY Select |
|
MODEL |
DIYS-12-HP-C-115A11-O |
|
UNIT TYPE |
Mini-Split |
|
EQUIPMENT TYPE |
Condenser |
|
SEER2 |
17.5 |
|
EER2 |
8.5 |
|
HSPF2-4 |
9 |
|
HSPF2-5 |
6.8 |
|
TONNAGE |
1 |
|
COOLING CAPACITY (BTU) |
12,000 |
|
HEATING CAPACITY (BTU) |
12,000 |
|
VOLTAGE (V) |
115 |
|
PHASE |
1 |
|
CYCLE |
60 |
|
MAX FUSE / BREAKER (A) |
20 |
|
MIN CIRCUIT AMPACITY (A) |
19.5 |
|
COLOR |
White |
|
ZONE CAPACITY |
1 |
|
REFRIGERANT TYPE |
R-454B |
|
REFRIGERANT VOLUME (OZ) |
21.52 |
|
DECIBEL RATING (DBA) |
54 |
|
INVERTER |
Yes |
|
LINESET INCLUDED |
Yes |
|
LINE SET LENGTH |
11.5 ft. |
|
MAX LINESET LENGTH (FT) |
75 ft. |
|
LIQUID LINE SIZE |
1/4 |
|
SUCTION LINE SIZE |
3/8 |
|
COMPRESSOR MOTOR TYPE |
Rotary |
|
CONDENSER FAN MOTOR TYPE |
DC |
|
METERING DEVICE |
EEV |
|
UL LISTED |
Yes |
|
CSA LISTED |
Yes |
|
ETL LISTED |
Yes |
|
ENERGY STAR CERTIFIED |
No |
|
AHRI CERTIFIED |
Yes |
|
BASE WARRANTY |
1 Year Parts, 2 Years Compressor |
|
BASE PARTS WARRANTY |
1 Year Parts |
|
BASE COMPRESSOR WARRANTY |
2 Years Compressor |
|
NET DIMENSIONS (D X H X W) |
10.63 x 19.49 x 28.35 in |
|
NET WEIGHT (LBS) |
54.89 |
|
GROSS DIMENSIONS (D X H X W) |
16.54 x 27.36 x 36.22 in |
|
GROSS WEIGHT (LBS) |
67.24 |
Air Handler Specifications:
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY Select |
|
MODEL |
DIYS-12-HP-WMAH-115A13-O |
|
UNIT TYPE |
Mini-Split |
|
EQUIPMENT TYPE |
Air Handler |
|
TONNAGE |
1 |
|
VOLTAGE (V) |
115 |
|
PHASE |
1 |
|
CYCLE |
60 |
|
MAX FUSE / BREAKER (A) |
15 |
|
MIN CIRCUIT AMPACITY (A) |
3 |
|
COLOR |
White |
|
MAX COVERAGE AREA |
550 sq. ft. |
|
ZONE CAPACITY |
1 |
|
REFRIGERANT TYPE |
R-454B |
|
DECIBEL RATING LOW (DBA) |
17.5 |
|
DECIBEL RATING HIGH (DBA) |
44.5 |
|
LIQUID LINE SIZE |
1/4 |
|
SUCTION LINE SIZE |
3/8 |
|
BLOWER MOTOR TYPE |
DC |
|
FILTER TYPE |
Reusable |
|
ADJUSTABLE THERMOSTAT |
Yes |
|
FAN ONLY OPTION |
Yes |
|
SLEEP MODE |
Yes |
|
AUTO COOL |
Yes |
|
WIFI COMPATIBILITY |
Yes |
|
APP COMPATIBILITY |
Yes |
|
WORKS WITH IOS |
Yes |
|
WORKS WITH ANDROID |
Yes |
|
REMOTE CONTROL INCLUDED |
Yes |
|
BASE WARRANTY |
1 Year Parts |
|
BASE PARTS WARRANTY |
1 Year Parts |
|
BASE REMOTE WARRANTY |
1 Year |
|
NET DIMENSIONS (D X H X W) |
7.87 x 11.61 x 31.57 in |
|
NET WEIGHT (LBS) |
24.91 |
|
GROSS DIMENSIONS (D X H X W) |
13.97 x 16.34 x 36.02 in |
|
GROSS WEIGHT (LBS) |
35.71 |








