Mini-Split Install
Flares, line sets, charge adjustments and startup.
How to Clean a Mini-Split: Filters, Coil, Blower Wheel and Drain
How to deep clean a ductless mini-split indoor unit, including the coil, blower wheel and drain, plus the outdoor unit, with the right tools and without damaging the electronics.
Mini-Split Flare Connections That Don't Leak: Cutting, Flaring and Torque
The steps that keep mini-split flare joints leak-free, from cutting and deburring to flare size, oil, torque and nitrogen testing.
Mini-Split Line Set Length and Charge: When to Add Refrigerant
How factory pre-charge works on mini-splits, how to calculate additional charge for long line sets, and the limits on length and height.
How to Pull a Deep Vacuum: Micron Targets and the Decay Test
Evacuate a system properly, covering nitrogen pressure test, rig setup, micron targets, and how to read a standing decay test for leaks vs. moisture.