MRCOOL DIY Mini Split – 54,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM348HPW04C134
$9,132.00 Original price was: $9,132.00.$6,477.00Current price is: $6,477.00.
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This 4th Generation MRCOOL Mini Split System provides a complete solution for efficiently cooling and heating up to three rooms. The package includes the DIY 48,000 BTU Multi-Zone Condenser, two 9,000 BTU Wall Mounted Air Handlers, one 36,000 BTU Wall Mounted Air Handler, three remote controls, and three 50 ft. installation kits. Designed for DIY installation, it offers the convenience of setting it up yourself.
Package Includes:
- MRCOOL DIY Multi-Zone 5-Zone Condenser, 4th Gen Series, DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handlers, 230 Volt with Enhanced WiFi, DIY-09-HP-WMAH-230C25Â (x2)
- MRCOOL DIY 4th Generation 36K BTU Wall Mount Air Handler, 230 Volt with Enhanced WiFi, DIY-36-HP-WMAH-230C25
- MRCOOL DIY 50ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor Units, 4th Generation, DIY50-3858C
- MRCOOL DIY 50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor Units, 4th Generation, DIY50-1412CÂ (x2)
It is important to note that the combined BTU output of all air handlers will not exceed the condenser’s capacity of 48,000 BTUs, even when all units are running simultaneously.
Condenser:
- Energy Efficiency: This 5-Zone condenser, when paired with compatible MRCOOL air handlers, achieves a highly efficient 20.5 SEER rating.
- All-Weather Performance: Capable of heating even when outdoor temperatures reach as low as 5°F.
- Lifetime Warranty: The only condenser in the market with a limited lifetime compressor warranty. Register for the MRCOOL Care Program to benefit from this offer.
Air Handler, 9K BTU (Quantity: 2):
- Coverage: Effectively cools and heats spaces up to 375 sq. ft.
- Multi-Mode Operation: Features multiple modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP for enhanced versatility.
- Smart Control: Can be controlled remotely via the Smart HVAC app, compatible with both Apple and Android devices.
- Easy Installation: Lightweight design allows for easy installation on most interior walls with the included mounting plate.
Air Handler, 36K BTU (Quantity: 1):
- Coverage: Ideal for larger spaces, covering areas up to 1,500 sq. ft.
- Multi-Mode Operation: Like the 9K BTU model, it offers COOL, HEAT, AUTO, DRY, and SLEEP modes for customized comfort.
- Smart Control: Easily managed through the Smart HVAC app for seamless control via smartphone.
- Convenient Setup: Its compact design and mounting plate allow for a simple installation process.
Line Sets, 50 ft. (Quantity: 3):
- Compatibility: These 50 ft. copper line sets connect the 4th Generation MRCOOL condenser to 9K, 12K, and 18K air handlers.
- Pre-Charged: Each line set is pre-charged with the correct amount of R-410A refrigerant for a hassle-free setup.
- DIY Installation: Eliminates the need for professional installation, helping you save on costs by setting it up on your own.
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Product Overview
 Covers 2250 sq. ft.      Â
 DIY Installation
 Wall Mounted         Â
  Number of Zones: 3
 Voltage: 208 to 230     Â
 Outdoor Operating Temp (Cool): 5°F to 122°F
 Outdoor Operating Temp (Heat): 5°F to 75.2°F
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What's Included
Air Handler

Condenser

Line Set

Wall Sleeve

Communication Wire

Remote Control

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Specifications and Dimensions
Condenser Specifications Product Dimensions 37.48″W x 16.34″D x 52.48″H Cooling Capacity 48,000 BTU Heating Capacity 48,000 BTU Zone Capacity 5 Min Ambient Cool 5F ~ 122F Min Ambient Heat 5F ~ 75.2F SEER 20.5 EER 11 Voltage Requires a minimum of 208V-230V/60HZ/40-60A (please check your home meets this electrical requirement prior to purchase) Registered Warranty 7 Years Replacement on Condenser, 5 Years Parts Air Handler — 9K BTU Product Dimensions 31.57″W x 7.44″D x 11.69″H Mount Type Wall Cooling Capacity 9,000 BTU Heating Capacity 9,000 BTU Registered Warranty 5 Years Parts Modes Auto – auto selects from Cool, Heat or Fan-Only
Dry – dehumidify
Cool
Heat
Fan Only
Quiet
SleepAir Handler — 36K BTU Product Dimensions 49.57″W x 11.10″D x 14.25″H Mount Type Wall Cooling Capacity 36,000 BTU Heating Capacity 36,000 BTU Registered Warranty 5 Years Parts Modes Auto – auto selects from Cool, Heat or Fan-Only
Dry – dehumidify
Cool
Heat
Fan Only
Quiet
SleepLine Set Length 50 Feet Liquid Line Size 3/8″ Suction Line Size 5/8″ Line Set Length 50 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ -
Coverage Area
When considering the purchase of our cooling or heating system, it’s essential to determine the appropriate BTU output based on the square footage of your space. Please refer to the following coverage chart for guidance:
- Square Feet: 180-375 | BTU = 9K
- Square Feet: 376-500 | BTU = 12K
- Square Feet: 501-750 | BTU = 18K
- Square Feet: 751-1,000 | BTU = 24K
- Square Feet: 1,001-1,500 | BTU = 36K
Keep in mind that additional factors, such as insulation quality, ceiling height, and the presence of appliances, can influence performance. For personalized assistance in selecting the optimal solution for your needs, don’t hesitate to reach out to our experienced Sales Team.
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Handling Line Sets
When installing your MRCOOL system, handle refrigerant lines carefully to ensure optimal performance and prevent damage.
Bending the Copper Lines: Maintain a minimum 4-inch bend radius and use smooth curves instead of sharp angles to protect the lines and ensure proper refrigerant flow.
Avoid Repeated Bending: Bending copper lines more than three times can harden and weaken them, increasing the risk of breakage. Handle with care and minimize adjustments.
For best results, use gradual bends and consult a licensed professional or our support team if needed.

























