A standard single-zone mini-split installation typically takes between four to eight hours, usually completed within a single working day by an experienced two-person HVAC crew. The timeline depends on factors such as the complexity of routing line sets through exterior walls, the accessibility of mounting locations, and whether specialized electrical runs or dedicated breaker upgrades are required. For multi-zone systems involving three or more indoor air handlers connected to a single outdoor unit, the installation process can easily extend across two full days. Proper vacuum testing, pressure checks, and electrical integration are meticulous steps that cannot be rushed to ensure system efficiency.
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