Overview
MRCOOL DIY Select 24000 BTU 16.5 SEER2 Ductless Mini Split System - R454B - 230V
Professional heating and cooling without the expense of professional installation. The MRCOOL DIY Select 24000 BTU Single-Zone Mini-Split Heat Pump delivers dependable year-round comfort for open-concept living areas, large primary suites, finished basements, converted garages, and other spaces up to 1,050 sq. ft.
With inverter-driven performance, quiet operation, smart controls, and an included pre-charged Quick Connect® line set, this system is designed for straightforward homeowner installation. Mount the units, connect the line set, provide power, and enjoy convenient app-controlled comfort without vacuum pumps, refrigerant gauges, or hiring an HVAC contractor.
-
System Capacity: Delivers 23,000 BTU of heating and cooling for spaces up to 1,050 sq. ft. Efficiency ratings of 16.5 SEER2 and 8.3 HSPF2-4 provide reliable year-round performance while helping keep energy use under control.
-
DIY Quick Connect® Line Set (11.5 ft.): Includes an 11.5 ft. factory pre-charged line set with R-454B refrigerant and sealed Quick Connect® fittings. No vacuum pump, manifold gauges, or refrigerant handling is required. Optional 16 ft., 25 ft., 35 ft., and 50 ft. line-set lengths are available separately.
-
Inverter Technology: The variable-speed compressor continuously adjusts output based on the space’s actual heating or cooling demand, helping reduce energy consumption and maintain more consistent temperatures without frequent on-and-off cycling.
-
Ultra-Quiet Performance: Indoor sound levels reach as low as 21.5 dB(A) in Sleep mode, providing quiet operation for bedrooms, offices, living areas, and other spaces where noise levels matter.
-
Smart Control via MRCOOL® Comfort App: Adjust the temperature, switch operating modes, create schedules, and manage the system remotely through the MRCOOL® Comfort App. Voice control is also supported through Amazon Alexa and Google Assistant.
-
Future-Ready Refrigerant: Uses R-454B, a next-generation refrigerant with a lower global-warming potential than older refrigerants, helping reduce environmental impact while meeting updated industry requirements.
-
Warranty and Care Program Coverage: Backed by a 2-year compressor warranty and a 1-year parts warranty.
Specifications
Capacity & Performance
| Zone Capacity |
1 Zone |
| Cooling Capacity |
23,000 BTU |
| Heating Capacity |
23,000 BTU |
| Coverage Area |
Up to 1,050 sq. ft. |
| SEER2 |
16.5 |
| EER2 |
8.6 |
| HSPF2-4 |
8.3 |
| HSPF2-5 |
6.3 |
| Outdoor Noise Level |
61 dB(A) |
| Indoor Noise Level |
21.5–51.5 dB(A) |
Dimensions & Weight
| Air Handler Dimensions |
42.6" W × 9.21" D × 13.27" H |
| Air Handler Weight |
35.49 lbs |
| Condenser Dimensions |
35.04" W × 13.46" D × 26.5" H |
| Condenser Weight |
95.9 lbs |
Electrical Requirements
| Voltage |
208/230V |
| Phase |
Single Phase |
| Frequency |
60 Hz |
| Minimum Circuit Ampacity |
19A |
| Maximum Fuse/Breaker |
20A |
Refrigerant & Piping
| Refrigerant Type |
R-454B |
| Refrigerant Charge |
50.44 oz |
| Included Line Set Length |
11.5 ft. |
| Maximum Line Set Length |
75 ft. |
| Liquid Line Size |
3/8" |
| Suction Line Size |
5/8" |
Features
| Inverter Technology |
Yes |
| DC Blower Motor |
Yes |
| DC Condenser Fan Motor |
Yes |
| Reusable Air Filter |
Yes |
| Adjustable Thermostat |
Yes |
| Fan Only Mode |
Yes |
| Auto Mode |
Yes |
| Sleep Mode |
Yes |
| Wi-Fi Enabled |
Yes |
| Mobile App Control |
Yes |
| iOS Compatible |
Yes |
| Android Compatible |
Yes |
| Remote Control Included |
Yes |
Certifications
| AHRI Certified |
Yes |
| UL Listed |
No |
| CSA Listed |
No |
| ETL Listed |
No |
| ENERGY STAR® Certified |
No |
Warranty
| Compressor Warranty |
2 Years |
| Parts Warranty |
1 Year |
Installation & Guides
BROCHURE
INSTALL MANUAL
REMOTE MANUAL
SERVICE MANUAL
WARRANTY DOC
AHRI CERTS
ENERGY GUIDE CERTS
Whats Included in the Box
MRCOOL DIY Select 24000 BTU
24,000 BTU Indoor Air Handler
24,000 BTU Outdoor Condenser
11.5 ft Quick Connect® line set
13-foot DIYPRO® cable
WiFi Smart Controller (built-in)
Remote
User Manual & Warranty Documentation
