The MRCOOL 4th Gen Mini Split bundle includes everything you need to heat and cool up to three rooms. The easy installation, Do-It-Yourself
MRCOOL DIY 4th Gen 48K BTU, 5-Zone, 20.5 SEER, Ductless Heat Pump Condenser (DIY-MULTI5-48HP230C)
MRCOOL DIY 4th Gen 18K BTU, 21.8 SEER, Ductless Mini-Split Ceiling Cassette Air Handler (DIYCASSETTE18HP-230C25) (x3)
Line Sets - length & quantity varies based on selection:
MRCOOL 16 Ft. 1/4-Inch x 1/2-Inch Lineset for DIY 9K, 12K & 18K Indoor (DIY16-1412)
MRCOOL 25 Ft. 1/4-Inch x 1/2-Inch Lineset for DIY 9K, 12K, & 18K Indoor (DIY25-1412)
MRCOOL DIY 4th Generation 35 Ft. 1/4-Inch x 1/2-Inch Lineset for DIY 9K, 12K, & 18K Indoor (DIY35-1412C)
MRCOOL DIY 4th Generation 50 Ft. 1/4-Inch x 1/2-Inch Lineset for DIY 9K, 12K, & 18K Indoor (DIY50-1412C)
MRCOOL DIY 4th Generation DIYCOUPLER-14 + DIYCOUPLER-12 + 75 Ft. MC-5 Cable (DIYCOUPLER-1412K75C)
Condenser |
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Dimensions |
16.34" D x 52.48" H x 37.48" W |
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Voltage |
208-230 V |
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SEER |
20.5 |
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Cooling Capacity |
48 BTU |
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Heating Capacity |
48K BTU |
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Min-Max Ambient Cool |
5F ~ 122F |
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Min-Max Ambient Heat |
13F ~ 75.2F |
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Refrigerant Type |
R-410A |
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Max Line Set Length |
246.06 ft TOTAL |
18K Air Handler |
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Product Dimensions |
13.19 in D x 8.98 in H x 50.31 in W |
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Voltage |
208-230 V |
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Cooling Capacity |
17K BTU |
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Heating Capacity |
19K BTU |
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Modes |
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Line Sets |
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Length |
16 ft., 25 ft., 35 ft., or 50 ft. |
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Liquid Line Size |
1/4" |
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Suction Line Size |
1/2" |
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Couplers |
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Restricted States |
GU;PR;VI |
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Proposition 65 Warning |
Yes |
What BTU rating should I choose for my air handler?
| Air Handler BTU | Coverage Area/Room Size (Sq Ft.)* |
| 9K BTU | Up to 375 Sq. ft |
| 12K BTU | Up to 500 Sq. ft |
| 18K BTU | Up to 750 Sq. ft |
| 24k BTU | Up to 1000 Sq. ft |
| 36k BTU | Up to 1500 Sq. ft |
*Ceiling height, insulation, and local climate may impact the coverage area. For example, an uninsulated room will require more power than a well insulated room.
*Shipping Policy
Installed with ceiling cassettes... Quiet and keeping us cool so far !
I had purchase a 2 zone/ 2 head Mr.cool unit.
Installed to manufacture specs and instructions.
One machine lasted 30 days before an internal fan motor- bearing broke and caused product failure.
A week after that, the interior -second head unit failed. Completely iced up internally.
I put a complaint in as soon as each issue presented itself.
I have yet to receive compensation, a replacement part or acknowledgement of the second unit failing.
I do not recommend Mr. Cool products to anyone. They are cheaply made and the customer support is extremely poor.
Not worth DIY savings (pre charged units)
Best constructive unit seen in a long time, all copper tube coil, very well designed and made
The best investment I have added to the house. Very quiet, enjoy the nice cool breeze and very economical to run. Supply shipped everything on a well deserved time. No broken parts, thank a million times, will buy again from this supplier.
as we bought an extra line set with the original order, we didn't receive the connectors we contacted the company they were quick to try and respond but slow to react. it took almost a month to get the connectors.
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- Thousands of happy customers
