





















MRCOOL 5th Gen DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM348HPC00C49
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5 YEAR WARRANTY: We Believe In Our Products & Our Team
- Description
- Condenser (48,000 BTU)
- Air Handlers
- Line Set
- Summary
- Shipping and Return
- COVERAGE AREA
MRCOOL DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM348HPC00C49
The MRCOOL 4th Gen DIY Mini Split system offers efficient and flexible multi-zone climate control, designed for easy DIY installation and seamless integration. Ideal for homes, workshops, and garages, this system provides powerful heating and cooling with smart features and a compact ceiling cassette design.
- Streamlined Installation: Features MRCOOL’s patented Pre-Charged Quick Connect Line Sets for easy, technician-free installation.
- Durability: Gold Fin® coating protects the condenser from corrosion and wear.
- Energy Efficiency: Rated at 20.5 SEER2 and 8.5 HSPF-5 for excellent energy savings.
- Winter Performance: Capable of providing heat reliably in outdoor temperatures as low as 5°F.
- Warranty: Comes with a 7-year compressor warranty and 5-year parts warranty.
12,000 BTU Ceiling Cassette Air Handler
- Fits between 16” ceiling joists for a sleek, modern installation.
- Suitable for rooms sized 376 to 500 sq ft.
- Compatible with the DIY 4th Gen Multi-Zone system, eliminating the need for ductwork.
- Controlled remotely via the SmartHVAC app for convenience anywhere.
- Easy installation with pre-charged Quick Connect line sets.
18,000 BTU Ceiling Cassette Air Handler
- Compact design fits neatly within 16” ceiling joists for an unobtrusive appearance.
- Ideal for spaces between 501 and 750 sq ft.
- Supports multi-zone functionality with the DIY 4th Gen system.
- Remote control via the SmartHVAC app.
- Fast and hassle-free setup using pre-charged line sets.
- Optimized Performance: Copper line sets connect each air handler to the condenser for seamless multi-zone operation.
- Pre-Charged Convenience: Filled with R-410A refrigerant to simplify installation.
- DIY Friendly: Designed for easy installation without vacuum pumps or special tools, saving on technician fees.
- Extended Reach: Coupler kits allow connection of two line sets for extended system coverage.
Feature | Specification |
---|---|
Condenser Capacity | 48,000 BTU |
Air Handler Sizes | 12,000 BTU and 18,000 BTU |
Zone Count | 3 Zones |
Installation Kit | 35 ft. Pre-Charged Line Sets |
Efficiency Ratings | 20.5 SEER2, 8.5 HSPF-5 |
Heating Capability | Down to 5°F outdoor temperature |
Warranty | 7-year compressor, 5-year parts |
Control | SmartHVAC app compatible |
This MRCOOL DIY Mini Split 42,000 BTU 3 Zone system combines powerful, flexible heating and cooling with sleek ceiling cassette air handlers and easy DIY installation. It is an excellent solution for multi-room climate control without ductwork, featuring smart controls and reliable performance for year-round comfort.
Condenser (48K BTU)
- Streamlined Installation: Take control with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, making installation a breeze without the need for professional assistance.
- Resilient Protection: Stay safeguarded against wear with the Gold Fin® condenser coating.
- Unmatched Efficiency: Enjoy remarkable energy savings with a 20.5 SEER2 and 8.5 HSPF-5 rating.
- Winter-Ready: Generate warmth reliably, even when outdoor temperatures reach as low as 5°F.
- Comprehensive Warranty: Benefit from a 7-year compressor warranty and a 5-year parts warranty.
Air Handler (12K BTU)
- Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
- Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
- Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
- Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
- Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.
Air Handler (18K BTU)
- Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 18k BTU Ceiling Cassette fits neatly within 16” ceiling joists for a clean and unobtrusive appearance.
- Multi-Zone Compatibility: Built to work with the DIY 4th gen MZ system for multi-zone functionality and ductless operation.
- Ideal Coverage Area: Capable of managing heating and cooling needs in spaces of 501 to 750 square feet with ease.
- Remote Control Access: Take full command using the SmartHVAC app, ensuring convenience whether at home or away.
- Effortless Installation: With MRCOOL’s Pre-Charged Quick Connect Line Set, setting up the unit is fast and hassle-free—no professional tools required.
Line Set
- Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
- Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
- DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
- Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.
ELECTRICAL REQUIREMENTS
Model | DIY-MULTI5-48HP230C |
---|---|
Type | 48K BTU Condenser |
BTU | 48,000 BTU |
Power Supply | 208-230V/60 Hz/1ph |
Minimum Circuit (Disconnect) | 40.0 A |
Maximum Fuse (Breaker) | 60.0 A |
SPECIFICATIONS & DIMENSIONS
Condenser | |
---|---|
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 |
Cool Mode - Outdoor Operating Temperature Range | 5°F ~ 122°F |
Heat Mode - Outdoor Operating Temperature Range | 5°F ~ 75.2°F |
SEER2 | 20.50 |
EER2 | 11 |
HSPF2 | 9.2 |
Voltage | Requires a minimum of 208V-230V/60HZ/18-25A (please check your home meets this electrical requirement prior to purchase) |
Registered Warranty | 7 Years Replacement on Compressor, 5 Years Parts |
Air Handler 12K BTU | |
Product Dimensions | 50.31"W x 13.19"D x 8.98"H |
Mount Type | Ceiling Cassette |
Cooling Capacity | 12,000 BTU |
Heating Capacity | 12,000 BTU |
Registered Warranty | 5 Years Parts |
Modes | Auto (Auto selects Cool, Heat or Fan-Only) Cool Heat Dry Fan Only Sleep |
Air Handler 18K BTU | |
Product Dimensions | 50.31"W x 13.19"D x 8.98"H |
Mount Type | Ceiling Cassette |
Cooling Capacity | 18,000 BTU |
Heating Capacity | 18,000 BTU |
Registered Warranty | 5 Years Parts |
Modes | Auto (Auto selects Cool, Heat or Fan-Only) Cool Heat Dry Fan Only Sleep |
Line Set | |
Length | 35 Feet |
Liquid Line Size | 1/4" |
Suction Line Size | 1/2" |
INSTALLATION & GUIDES
Installation Manual
Product Brochure
Performance Specifications
Warranty
Energy Guide
AHRI Certificate
For Shipping & return information visit here
- Description
- Condenser (48,000 BTU)
- Air Handlers
- Line Set
- Summary
- Shipping and Return
- COVERAGE AREA
MRCOOL DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM348HPC00C49
The MRCOOL 4th Gen DIY Mini Split system offers efficient and flexible multi-zone climate control, designed for easy DIY installation and seamless integration. Ideal for homes, workshops, and garages, this system provides powerful heating and cooling with smart features and a compact ceiling cassette design.
- Streamlined Installation: Features MRCOOL’s patented Pre-Charged Quick Connect Line Sets for easy, technician-free installation.
- Durability: Gold Fin® coating protects the condenser from corrosion and wear.
- Energy Efficiency: Rated at 20.5 SEER2 and 8.5 HSPF-5 for excellent energy savings.
- Winter Performance: Capable of providing heat reliably in outdoor temperatures as low as 5°F.
- Warranty: Comes with a 7-year compressor warranty and 5-year parts warranty.
12,000 BTU Ceiling Cassette Air Handler
- Fits between 16” ceiling joists for a sleek, modern installation.
- Suitable for rooms sized 376 to 500 sq ft.
- Compatible with the DIY 4th Gen Multi-Zone system, eliminating the need for ductwork.
- Controlled remotely via the SmartHVAC app for convenience anywhere.
- Easy installation with pre-charged Quick Connect line sets.
18,000 BTU Ceiling Cassette Air Handler
- Compact design fits neatly within 16” ceiling joists for an unobtrusive appearance.
- Ideal for spaces between 501 and 750 sq ft.
- Supports multi-zone functionality with the DIY 4th Gen system.
- Remote control via the SmartHVAC app.
- Fast and hassle-free setup using pre-charged line sets.
- Optimized Performance: Copper line sets connect each air handler to the condenser for seamless multi-zone operation.
- Pre-Charged Convenience: Filled with R-410A refrigerant to simplify installation.
- DIY Friendly: Designed for easy installation without vacuum pumps or special tools, saving on technician fees.
- Extended Reach: Coupler kits allow connection of two line sets for extended system coverage.
Feature | Specification |
---|---|
Condenser Capacity | 48,000 BTU |
Air Handler Sizes | 12,000 BTU and 18,000 BTU |
Zone Count | 3 Zones |
Installation Kit | 35 ft. Pre-Charged Line Sets |
Efficiency Ratings | 20.5 SEER2, 8.5 HSPF-5 |
Heating Capability | Down to 5°F outdoor temperature |
Warranty | 7-year compressor, 5-year parts |
Control | SmartHVAC app compatible |
This MRCOOL DIY Mini Split 42,000 BTU 3 Zone system combines powerful, flexible heating and cooling with sleek ceiling cassette air handlers and easy DIY installation. It is an excellent solution for multi-room climate control without ductwork, featuring smart controls and reliable performance for year-round comfort.
Condenser (48K BTU)
- Streamlined Installation: Take control with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, making installation a breeze without the need for professional assistance.
- Resilient Protection: Stay safeguarded against wear with the Gold Fin® condenser coating.
- Unmatched Efficiency: Enjoy remarkable energy savings with a 20.5 SEER2 and 8.5 HSPF-5 rating.
- Winter-Ready: Generate warmth reliably, even when outdoor temperatures reach as low as 5°F.
- Comprehensive Warranty: Benefit from a 7-year compressor warranty and a 5-year parts warranty.
Air Handler (12K BTU)
- Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
- Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
- Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
- Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
- Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.
Air Handler (18K BTU)
- Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 18k BTU Ceiling Cassette fits neatly within 16” ceiling joists for a clean and unobtrusive appearance.
- Multi-Zone Compatibility: Built to work with the DIY 4th gen MZ system for multi-zone functionality and ductless operation.
- Ideal Coverage Area: Capable of managing heating and cooling needs in spaces of 501 to 750 square feet with ease.
- Remote Control Access: Take full command using the SmartHVAC app, ensuring convenience whether at home or away.
- Effortless Installation: With MRCOOL’s Pre-Charged Quick Connect Line Set, setting up the unit is fast and hassle-free—no professional tools required.
Line Set
- Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
- Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
- DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
- Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.
ELECTRICAL REQUIREMENTS
Model | DIY-MULTI5-48HP230C |
---|---|
Type | 48K BTU Condenser |
BTU | 48,000 BTU |
Power Supply | 208-230V/60 Hz/1ph |
Minimum Circuit (Disconnect) | 40.0 A |
Maximum Fuse (Breaker) | 60.0 A |
SPECIFICATIONS & DIMENSIONS
Condenser | |
---|---|
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 |
Cool Mode - Outdoor Operating Temperature Range | 5°F ~ 122°F |
Heat Mode - Outdoor Operating Temperature Range | 5°F ~ 75.2°F |
SEER2 | 20.50 |
EER2 | 11 |
HSPF2 | 9.2 |
Voltage | Requires a minimum of 208V-230V/60HZ/18-25A (please check your home meets this electrical requirement prior to purchase) |
Registered Warranty | 7 Years Replacement on Compressor, 5 Years Parts |
Air Handler 12K BTU | |
Product Dimensions | 50.31"W x 13.19"D x 8.98"H |
Mount Type | Ceiling Cassette |
Cooling Capacity | 12,000 BTU |
Heating Capacity | 12,000 BTU |
Registered Warranty | 5 Years Parts |
Modes | Auto (Auto selects Cool, Heat or Fan-Only) Cool Heat Dry Fan Only Sleep |
Air Handler 18K BTU | |
Product Dimensions | 50.31"W x 13.19"D x 8.98"H |
Mount Type | Ceiling Cassette |
Cooling Capacity | 18,000 BTU |
Heating Capacity | 18,000 BTU |
Registered Warranty | 5 Years Parts |
Modes | Auto (Auto selects Cool, Heat or Fan-Only) Cool Heat Dry Fan Only Sleep |
Line Set | |
Length | 35 Feet |
Liquid Line Size | 1/4" |
Suction Line Size | 1/2" |
INSTALLATION & GUIDES
Installation Manual
Product Brochure
Performance Specifications
Warranty
Energy Guide
AHRI Certificate
For Shipping & return information visit here
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Top Tier Products, Even Better Customer Care

We Believe In Our Products & Our Team