The MRCOOL® DIY® 5th Gen Multi-Zone 55,000 BTU Ductless Mini Split delivers flexible heating and cooling across three independently controlled zones. This configuration combines one 9,000 BTU wall-mounted air handler with two 12,000 BTU air handlers, making it a practical choice for homes that need different comfort levels in multiple rooms.
The 9,000 BTU air handler is designed for spaces up to approximately 400 square feet, while each 12,000 BTU unit can serve spaces up to approximately 550 square feet. Independent zone operation allows each room to maintain its own preferred temperature while sharing the same high-capacity outdoor condenser.
With a 22 SEER2 efficiency rating, DC inverter technology, R-454B refrigerant, and MRCOOL's pre-charged Quick Connect® system, this multi-zone heat pump is designed for efficient performance and simplified installation. Wi-Fi connectivity, smartphone controls, Follow Me® functionality, and voice-assistant compatibility add convenient control for everyday use.
What's Included
-
MRCOOL DIY 5th Gen Multi-Zone 55,000 BTU Mini Split Condenser, DIY-MULTI6-55HP230D-O
Quantity: 1 -
MRCOOL DIY 5th Gen 9,000 BTU Wall Mount Air Handler, DIY-09-HP-WMAH-230D25-O
Quantity: 1 -
MRCOOL DIY 5th Gen 12,000 BTU Wall Mount Air Handler, DIY-12-HP-WMAH-230D25-O
Quantity: 2
Key Features:
- Easy DIY® Installation
- Pre-Charged DIY® System
- Quick Connect® Line Set Technology
- Three-Zone Independent Comfort
- Energy-Efficient DC Inverter Technology
- 100% Sealed System
- Gold Fin® Condenser
- Eco-Safe R-454B Refrigerant
- Smartphone App Controls
- Follow Me® Temperature Sensing
- Low Ambient Cooling
- Wi-Fi Connectivity
- Compatible with iOS and Android
- Google Assistant & Amazon Alexa Compatibility
- Lifetime Technical Support
Specifications:
BRAND NAME |
MRCOOL |
SERIES |
DIY 5th gen Multi-Zone Mini-splits |
MODEL |
DIY-MULTI6-55HP230D-O |
SKU |
DIYM355HPW30D124 |
GTIN |
840255587488 |
UPC |
840255587488 |
EQUIPMENT TYPE |
Ductless Mini Split Heat Pump |
ZONE CONFIGURATION |
3-Zone |
CONDENSER CAPACITY |
55,000 BTU |
SEER2 |
22 |
EER2 |
12 |
HSPF2-4 |
10.6 |
HSPF2-5 |
8.5 |
TONNAGE |
4.6 Ton |
COOLING CAPACITY |
47,000 BTU |
HEATING CAPACITY |
55,000 BTU |
AIR HANDLER CONFIGURATION |
9,000 BTU + 12,000 BTU + 12,000 BTU |
9K AIR HANDLER QUANTITY |
1 |
12K AIR HANDLER QUANTITY |
2 |
9K MAX COVERAGE AREA |
400 sq. ft. |
12K MAX COVERAGE AREA |
550 sq. ft. each |
VOLTAGE |
208/230V |
PHASE |
1 |
CYCLE |
60 Hz |
MAX FUSE BREAKER |
45A |
MIN CIRCUIT AMPACITY |
43A |
COLOR |
White |
ZONE CAPACITY |
6 |
REFRIGERANT TYPE |
R-454B |
REFRIGERANT VOLUME |
151.68 oz. |
DECIBEL RATING |
64 dBA |
INVERTER |
DC |
LINE SET LENGTH |
25 ft. |
MAX LINE SET LENGTH |
221.4 ft. |
LIQUID LINE SIZE |
1/4 in. |
SUCTION LINE SIZE |
3/8 in. × 4; 1/2 in. × 2 |
COMPRESSOR MOTOR TYPE |
Rotary |
AUXILIARY HEATER INCLUDED |
No |
FAN ONLY OPTION |
Yes |
QUIET MODE |
Yes |
AUTO COOL |
Yes |
WIFI COMPATIBILITY |
Yes |
APP COMPATIBILITY |
Yes |
IOS COMPATIBILITY |
Yes |
ANDROID COMPATIBILITY |
Yes |
CERTIFICATIONS |
UL, ETL, ENERGY STAR®, AHRI |
BASE PARTS WARRANTY |
5 Years |
BASE COMPRESSOR WARRANTY |
7 Years |
REGISTERED WARRANTY |
Extended Limited Lifetime* |
9K AIR HANDLER MODEL |
DIY-09-HP-WMAH-230D25-O |
9K AIR HANDLER QUANTITY |
1 |
9K AIR HANDLER COVERAGE |
400 sq. ft. |
9K AIR HANDLER MOUNT TYPE |
Wall |
9K AIR HANDLER COLOR |
White |
9K AIR HANDLER FILTER |
Reusable |
9K AIR HANDLER OSCILLATION |
Yes |
9K AIR HANDLER WIFI |
Yes |
9K REMOTE CONTROL |
Included |
12K AIR HANDLER MODEL |
DIY-12-HP-WMAH-230D25-O |
12K AIR HANDLER QUANTITY |
2 |
12K AIR HANDLER COVERAGE |
550 sq. ft. each |
12K AIR HANDLER MOUNT TYPE |
Wall |
12K AIR HANDLER COLOR |
White |
12K AIR HANDLER FILTER |
Reusable |
12K AIR HANDLER OSCILLATION |
Yes |
12K AIR HANDLER WIFI |
Yes |
12K REMOTE CONTROL |
Included |


















