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This is a three-zone ductless mini-split: one 36,000 BTU outdoor condenser paired with two 6,000 BTU wall heads and one 24,000 BTU wall head. Each zone runs independently, so a bedroom, an office and an open living area can hold different temperatures at once. Its selling point is the DIY QuickConnect line sets, which come pre-charged with R-454B and skip the vacuum pump and brazing that a conventional split needs. It is a 23 SEER2 inverter system with Gold Fin coil coating, Follow Me sensing and app control. Against pro-installed brands it trades a narrower service network for lower installation complexity; owners of earlier DIY generations praise the easy hookup and quiet indoor units, while some report app and Wi-Fi hiccups.
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Feedback on MRCOOL's DIY line centers on how much easier the pre-charged QuickConnect lines make installation compared with a standard split. Owners describe the indoor heads as quiet and the cooling as strong, and flag the app and Wi-Fi connection as the weak spot.
This is a 3-zone ductless mini-split air conditioner and heat pump built around a 36,000 BTU DIY 5th Generation multi-zone condenser. It pairs two 6,000 BTU wall-mounted air handlers with one 24,000 BTU wall-mounted air handler. Each zone has its own independent temperature control.
The system uses DIY QuickConnect pre-charged line sets, which come factory-sealed with R-454B refrigerant. Installation does not require a vacuum pump or gauges. The included DIYPRO cable removes the need for electrical conduit.
It has a DC inverter variable-speed compressor and Gold Fin anti-corrosion coating. Follow Me remote-based temperature sensing is included. The system works with the MRCOOL Smart HVAC Controller App, Alexa and Google Home. It is ENERGY STAR and AHRI certified.
