The MRCOOL® DIY® 5th Generation Multi-Zone 36,000 BTU ductless mini-split system provides efficient heating and cooling for two separate spaces with a 6,000 BTU and 18,000 BTU indoor unit configuration. With a 23 SEER2 rating and DC inverter technology, this system is designed to deliver reliable year-round comfort while maintaining efficient operation.
The system pairs a 36,000 BTU multi-zone condenser with two wall-mounted air handlers, providing approximately 200 square feet of coverage from the 6,000 BTU unit and up to 800 square feet from the 18,000 BTU unit. MRCOOL® DIY® Quick Connect® line sets are pre-charged with R-454B refrigerant, helping simplify installation without evacuation or specialized HVAC tools.
Built-in smart controls allow users to manage each zone through the MRCOOL® Smart HVAC Controller® and app, with compatibility for Google Assistant and Amazon Alexa. Additional features include Follow Me®, low ambient cooling, quiet mode, reusable filters, Gold Fin® condenser protection, and a fully sealed system. The system includes a 5-year parts warranty, 7-year compressor warranty, and Limited Lifetime Replacement warranty when enrolled in the MRCOOL® Care Program.
What's Included
-
MRCOOL DIY 5th Gen Multi-Zone 36,000 BTU Mini Split Condenser, DIY-MULTI5-36HP230D-O -
MRCOOL DIY 5th Gen 6,000 BTU Wall Mount Air Handler, DIY-06-HP-WMAH-230D25-O -
MRCOOL DIY 5th Gen 18,000 BTU Wall Mount Air Handler, DIY-18-HP-WMAH-230D25-O
Specifications:
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY 5th Gen Multi-Zone Mini-Splits |
|
MODEL |
DIY-MULTI5-36HP230D-O / DIY-06-HP-WMAH-230D25-O / DIY-18-HP-WMAH-230D25-O |
|
CONFIGURATION |
2-Zone (6K + 18K) |
|
TONNAGE |
3 |
|
COOLING CAPACITY (BTU) |
34,000 |
|
HEATING CAPACITY (BTU) |
36,000 |
|
SEER2 |
23 |
|
EER2 |
12 |
|
HSPF2-4 |
9.9 |
|
HSPF2-5 |
7.5 |
|
VOLTAGE / PHASE / FREQUENCY |
208/230 V / 1 / 60 Hz |
|
MAX FUSE / BREAKER (A) |
35 |
|
MIN CIRCUIT AMPACITY (A) |
30.5 |
|
COLOR |
White |
|
ZONE CAPACITY |
5 |
|
REFRIGERANT |
R-454B |
|
REFRIGERANT VOLUME (OZ) |
104.75 |
|
OUTDOOR SOUND LEVEL (DBA) |
64 |
|
INVERTER |
DC |
|
LINE SET LENGTH (FT) |
25 |
|
MAX LINE SET LENGTH (FT) |
221.4 |
|
LIQUID LINE SIZE |
1/4 in |
|
SUCTION LINE SIZE |
3/8 in x 4 / 1/2 in x 1 |
|
COMPRESSOR MOTOR TYPE |
Rotary |
|
AUXILIARY HEATER INCLUDED |
No |
|
FEATURES |
Easy DIY Installation, Pre-Charged Quick Connect Line Set, Multi-Room Comfort, DC Inverter, 100% Sealed System, Gold Fin Condenser, R-454B Refrigerant, Smartphone App Controls, Follow Me, Low Ambient Cooling, Quiet Mode, Auto Cool, Fan Only |
|
SMART CONTROLS |
Google Assistant / Amazon Alexa |
|
WI-FI / APP COMPATIBILITY |
Yes / iOS / Android |
|
AIR HANDLER CONFIGURATION |
6,000 BTU + 18,000 BTU Wall-Mounted |
|
AIR HANDLER COVERAGE |
200 sq. ft. + 800 sq. ft. |
|
AIR HANDLER SOUND LEVEL (DBA) |
19 - 54.5 |
|
AIR HANDLER FAN SPEEDS |
5 |
|
AIR HANDLER LINE SIZES |
1/4 in liquid / 1/2 in suction |
|
AIR HANDLER FILTER TYPE |
Reusable |
|
CERTIFICATIONS |
UL / ETL / ENERGY STAR / AHRI |
|
BASE PARTS WARRANTY |
5 years |
|
BASE COMPRESSOR WARRANTY |
7 years |
|
REGISTERED WARRANTY |
Extended Limited Lifetime* |
|
CONDENSER DIMENSIONS (D X H X W) |
16.14 x 31.89 x 37.24 in |
|
CONDENSER NET / GROSS WEIGHT |
169.24 / 181.88 lb |
|
AIR HANDLER MODELS |
DIY-06-HP-WMAH-230D25-O / DIY-18-HP-WMAH-230D25-O |
|
AIR HANDLER DIMENSIONS (D X H X W) |
7.44 x 11.69 x 31.57 in / 8.9 x 13.19 x 42.52 in |
|
AIR HANDLER NET / GROSS WEIGHT |
24.47 / 35.05 lb / 35.49 / 49.6 lb |


















