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DIY Multi. | 2-6 Zones | Custom Build

Displaying 7 Products
Displaying 7 Products
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Mr Cool

Lineset Extension Kit for MRCOOL DIY Split Units

This Mr Cool PRE-Charged DIY Extension Kit is for Mr Cool DIY Multi Zone Units Only . The PRE-Charged Kit Includes: (1) DIY 25' Copper Lineset , add a Set of Couplers and Wire to extend the lines that comes with the Mr Cool DIY Multi Zone Split units for a longer copper run. Make sure not to exceed the maximum length allowed, or you will cause damage to your system.

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Multi. | 2-6 Zones | Custom Build

MRCOOL DIY (2-6 Zone) Custom Mini Split Heat Pump (-13Β°F) E-Star: 23.9 SEER2/13 EER/10 HSPF (R454B)

This 208-230V MR-COOL Mini-Split is 2-6 Zones, 23.9 SEER2, Energy Star Heat Pump with 13 EER, 10 HSPF. Customize your indoor units, upgrade the outdoor larger.

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Dual | 2 Zone | Select Two Heads

MRCOOL DIY 2-Zone Custom Mini Split AC Heat Pump (-13Β°F) E-Star: 23.9 SEER2/13 EER/10 HSPF (R454B)

This 208-230V MR-COOL Mini-Split is 2 Zones, 23.9 SEER2, Energy Star Heat Pump with 13 EER, 10 HSPF. Customize your indoor units, upgrade the outdoor larger.

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Triple | 3 Zone | Select Three Heads

MRCOOL DIY 3-Zone Ductless Mini Split Heat Pump β€” 23.9 SEER2, Energy Star

This 208-230V MR-COOL Mini-Split is 3 Zones, 23.9 SEER2, Energy Star Heat Pump with 13 EER, 10 HSPF. Customize your indoor units, upgrade the outdoor larger.

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Quad. | 4 Zone | Select Four Heads

MRCOOL DIY 4-Zone Custom Mini Split Heat Pump (-13Β°F) E-Star: 23 SEER2/12 EER/9 HSPF (R454B)

This 208-230V MR-COOL Mini-Split is 4 Zones, 23 SEER2, Energy Star Heat Pump with 12 EER, 9 HSPF. Customize your indoor units, upgrade the outdoor larger.

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Quint. | 5 Zone | Select Five Heads

MRCOOL DIY 5-Zone Custom Mini Split AC Heat Pump (-13Β°F) E-Star: 23 SEER2/12 EER/9.9 HSPF (R454B)

This 208-230V MR-COOL Mini-Split is 5 Zones, 23 SEER2, Energy Star Heat Pump with 12 EER, 9.9 HSPF. Customize your indoor units, upgrade the outdoor larger.

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Sext. | 6 Zone | Select Six Heads

MRCOOL DIY 6-Zone Custom Mini Split AC Heat Pump (-13Β°F) E-Star: 21.8 SEER2/12 EER/10 HSPF (R454B)

This 208-230V MR-COOL Mini-Split is 6 Zones, 22 SEER2, Energy Star Heat Pump with 12 EER, 10 HSPF. Customize your indoor units, upgrade the outdoor larger.

Displaying 7 Products

DIY Multi. | 2-6 Zones | Custom Build


DIY Multi Zone mini split systems are gaining popularity among homeowners who want to have their own air conditioner and heat pump. DIY Multi Zone split systems offer considerable savings over purchasing a full-sized unit from an HVAC contractor, as well as the potential for greater control over your climate system. With careful planning and attention to detail, it is possible for most do-it-yourselfers to successfully install a mini split in their home.

The first step in installing a DIY multi zone air conditioner system is understanding the components involved. A typical setup includes multiple indoor air handler, one outdoor condenser unit, and wiring that connects the components together. The indoor air handlers contains fan coils, filters and electronic controls while the outside condenser unit houses the compressor and the condenser coils. The wiring is used to control the indoor temperature, airflow rate and fan speed, as well as communicating with other devices such as a thermostat or humidistat.

Once you have familiarized yourself with the components, it’s time to begin planning your installation. This includes selecting an appropriate location for the indoor air handler and outdoor condenser unit, choosing electrical supplies for connection purposes, and determining what type of refrigerant will be used in the system. It is important to note that DIY Multi Zone systems require an HVAC technician to recharge any refrigerant lost during installation or repairs.

It’s also essential to plan for proper ventilation when installing a DIY Multi Zone heat pump. This means making sure the indoor and outdoor units are getting adequate amounts of air to maintain proper system performance. Finally, it’s also important to consider any safety regulations in your area before beginning the installation process.

Installing a DIY Multi Zone split unit is a great way for homeowners to save money on their climate control system without sacrificing quality or performance. With careful planning and attention to detail, do-it-yourselfers can successfully install a mini split in their home that will provide reliable cooling and heating for years to come.


Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.

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