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MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPC05C84

SKU DIYM448HPC05C84
by MRCOOL
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Description

MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPC05C84

Imagine transforming your space into a perfectly climate-controlled haven without the hassle and cost of professional installation. The MRCOOL DIY Mini Split 45,000 BTU 4 Zone Ceiling Cassette system is designed to empower business owners, contractors, and savvy homeowners who demand high-performance HVAC solutions that are easy to install and built to last. This system offers the ideal balance of power, efficiency, and flexibility — all wrapped in a sleek, modern design that fits seamlessly into any commercial or residential setting.

Powerful, Efficient Climate Control for Multiple Zones

With a robust 48,000 BTU condenser paired with four versatile ceiling cassette air handlers, this system delivers precise heating and cooling tailored to each room’s unique needs. Whether you’re outfitting an office, retail space, workshop, or multi-room home, you can create customized comfort zones that keep every corner perfectly conditioned. Imagine your customers, employees, or family enjoying consistent temperatures year-round — no hot spots, no cold drafts, just smooth, whisper-quiet climate control.

DIY Installation That Saves Time and Money

This isn’t just any HVAC system; it’s engineered for the professional installer who values efficiency and cost savings. MRCOOL’s patented Pre-Charged Quick Connect Line Sets eliminate the need for vacuum pumps or refrigerant charging, slashing installation time dramatically. With a 25-foot install kit included, you have everything you need to get started right away. Save thousands on technician fees and get your project up and running faster, all while maintaining the highest standards of quality and reliability.

Built to Endure, Designed to Impress

The Gold Fin® condenser coating guards against corrosion and wear, ensuring your system stands strong through years of heavy use and harsh weather. Rated at an impressive 20.5 SEER2 and 9.2 HSPF2, this unit doesn’t just provide comfort — it does so efficiently, lowering energy costs and boosting your bottom line. Plus, with reliable heating down to 5°F, you can count on consistent performance even in cold climates.

Seamless Control at Your Fingertips

Take full command of your environment with the SmartHVAC app, which puts remote control of every zone right in your pocket. Adjust temperatures, switch modes, or schedule settings from anywhere, giving you and your clients unmatched convenience and flexibility.

Key Features at a Glance:
  • 48,000 BTU condenser powers 4 zones for multi-room comfort
  • 9,000 BTU and 12,000 BTU ceiling cassette air handlers fit neatly between 16” ceiling joists
  • Pre-Charged Quick Connect Line Sets for fast, tool-free installation
  • Gold Fin® condenser coating for enhanced durability
  • Energy efficient with 20.5 SEER2 and 9.2 HSPF2 ratings
  • SmartHVAC app compatible for remote zone control
  • Robust warranty: 7 years on compressor, 5 years on parts
  • Electrical: 208-230V, 40A minimum circuit required
Take Control of Your Climate Today

When you choose the MRCOOL DIY Mini Split 45,000 BTU 4 Zone Ceiling Cassette system, you’re investing in more than just an HVAC unit — you’re investing in a smarter way to work. Picture the pride of installing a cutting-edge system that delivers flawless comfort, saves money, and impresses clients with its sleek design and tech-forward features. This is the future of HVAC — flexible, efficient, and built for those who demand the best. Make your next project a success with MRCOOL.

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 (9K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
  • Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
  • Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
  • Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
  • Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

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.

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 9K BTU
Product Dimensions 50.31"W x 13.19"D x 8.98"H
Mount Type Ceiling Cassette
Cooling Capacity 9,000 BTU
Heating Capacity 9,000 BTU
Registered Warranty 5 Years Parts
Modes Auto (Auto selects Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
Sleep
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
Line Set
Length 25 Feet
Liquid Line Size 1/4"
Suction Line Size 1/2"
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US
Request an Installer

Product Overview

  • Zone / ROOM:

    Zone / ROOM: 4 Zone

  • Air Handler BTU:

    Air Handler BTU: 9k + 12k + 12k + 12k

  • Condenser BTU:

    Condenser BTU: 48k

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat): Heating -13°F to 75.2°F & Cooling 5°F to 122°F

  • Warranty

    Warranty 7-year compressor & 5-year parts warranty

Description

MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPC05C84

Imagine transforming your space into a perfectly climate-controlled haven without the hassle and cost of professional installation. The MRCOOL DIY Mini Split 45,000 BTU 4 Zone Ceiling Cassette system is designed to empower business owners, contractors, and savvy homeowners who demand high-performance HVAC solutions that are easy to install and built to last. This system offers the ideal balance of power, efficiency, and flexibility — all wrapped in a sleek, modern design that fits seamlessly into any commercial or residential setting.

Powerful, Efficient Climate Control for Multiple Zones

With a robust 48,000 BTU condenser paired with four versatile ceiling cassette air handlers, this system delivers precise heating and cooling tailored to each room’s unique needs. Whether you’re outfitting an office, retail space, workshop, or multi-room home, you can create customized comfort zones that keep every corner perfectly conditioned. Imagine your customers, employees, or family enjoying consistent temperatures year-round — no hot spots, no cold drafts, just smooth, whisper-quiet climate control.

DIY Installation That Saves Time and Money

This isn’t just any HVAC system; it’s engineered for the professional installer who values efficiency and cost savings. MRCOOL’s patented Pre-Charged Quick Connect Line Sets eliminate the need for vacuum pumps or refrigerant charging, slashing installation time dramatically. With a 25-foot install kit included, you have everything you need to get started right away. Save thousands on technician fees and get your project up and running faster, all while maintaining the highest standards of quality and reliability.

Built to Endure, Designed to Impress

The Gold Fin® condenser coating guards against corrosion and wear, ensuring your system stands strong through years of heavy use and harsh weather. Rated at an impressive 20.5 SEER2 and 9.2 HSPF2, this unit doesn’t just provide comfort — it does so efficiently, lowering energy costs and boosting your bottom line. Plus, with reliable heating down to 5°F, you can count on consistent performance even in cold climates.

Seamless Control at Your Fingertips

Take full command of your environment with the SmartHVAC app, which puts remote control of every zone right in your pocket. Adjust temperatures, switch modes, or schedule settings from anywhere, giving you and your clients unmatched convenience and flexibility.

Key Features at a Glance:
  • 48,000 BTU condenser powers 4 zones for multi-room comfort
  • 9,000 BTU and 12,000 BTU ceiling cassette air handlers fit neatly between 16” ceiling joists
  • Pre-Charged Quick Connect Line Sets for fast, tool-free installation
  • Gold Fin® condenser coating for enhanced durability
  • Energy efficient with 20.5 SEER2 and 9.2 HSPF2 ratings
  • SmartHVAC app compatible for remote zone control
  • Robust warranty: 7 years on compressor, 5 years on parts
  • Electrical: 208-230V, 40A minimum circuit required
Take Control of Your Climate Today

When you choose the MRCOOL DIY Mini Split 45,000 BTU 4 Zone Ceiling Cassette system, you’re investing in more than just an HVAC unit — you’re investing in a smarter way to work. Picture the pride of installing a cutting-edge system that delivers flawless comfort, saves money, and impresses clients with its sleek design and tech-forward features. This is the future of HVAC — flexible, efficient, and built for those who demand the best. Make your next project a success with MRCOOL.

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 (9K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
  • Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
  • Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
  • Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
  • Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

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.

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 9K BTU
Product Dimensions 50.31"W x 13.19"D x 8.98"H
Mount Type Ceiling Cassette
Cooling Capacity 9,000 BTU
Heating Capacity 9,000 BTU
Registered Warranty 5 Years Parts
Modes Auto (Auto selects Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
Sleep
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
Line Set
Length 25 Feet
Liquid Line Size 1/4"
Suction Line Size 1/2"
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US

Commercial HVAC PROS!

Unlock Installer Benefits Now:

  • ✓ Exclusive BULK Pricing
  • ✓ Limited Time Deals
  • ✓ Unmatched Service & Support
  • ✓ Technical support
  • ✓ Extended Warranty & Maintenance
"Their technical expertise in commercial HVAC systems is outstanding. From equipment selection to installation support, they provided everything we needed. The bulk pricing saved us thousands on our multi-building project, and their 24/7 technical support kept us running smoothly."
- Marcus R., HVAC Project Manager, 06/24

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  • ✓ Pre-Vetted, Licensed & Insured Installers
  • ✓ 2-3 Local Options in Your Area
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  • ✓ Fast Response - Within 24 Hours

How it works:

1. Fill out the form below with your project details
2. We'll match you with 2-3 qualified installers in your area
3. Installers contact you directly with quotes and availability
4. You choose the best fit for your project

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We'll connect you with installers within 48 hours during business days

Frequently Asked Questions about MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPC05C84

Most Frequently Asked Questions

Yes, mini-split systems are often worth it because they offer high energy efficiency, zoned comfort, easy installation, and lower long-term operating costs, especially for homes without existing ductwork or where room-by-room temperature control is desired.
A MRCOOL mini-split typically lasts 10 to 20 years with proper installation and regular maintenance
The cost to install a MRCOOL mini-split system typically ranges from $3,000 to $10,000, depending on the size, number of zones, and installation complexity, with DIY installation potentially saving $500 to $2,000 in labor costs

Other Questions

Running a mini-split typically costs between $30 and $80 per month, depending on factors like the unit’s size, usage hours, electricity rates, and local climate conditions
Mini splits are typically cheaper to run than central AC systems because they provide zoned cooling without duct losses and use inverter technology for more efficient operation. However, for cooling an entire large home, a high-efficiency central AC system might be more cost-effective depending on insulation, system efficiency, and usage patterns.

Reviews

Express Free Shipping

Process orders within 1-2 days

Stress Free Returns

Get Covered for (730 days) Returns

Premum Quality

Top Tier Products, Even Better Customer Care

5 Year Warranty

We Believe In Our Products & Our Team