HVAC Wiring Made Visual — reading schematics and ladder diagrams, step by step

HVAC wiring one page at a time: the symbols, reading a ladder diagram, line and low voltage, thermostat wiring, contactors, relays and capacitors, the furnace control board, heat pump controls and troubleshooting with a meter.

Mini-Splits Made Visual — installing, flaring and troubleshooting ductless systems

Ductless mini-splits one page at a time: how they work, sizing and placement, mounting the indoor and outdoor units, line sets, perfect flares and torque, pressure test and evacuation, wiring, inverter basics, error codes and maintenance.

Refrigeration Made Visual — walk-in coolers, ice machines, defrost and low temp

Commercial refrigeration one page at a time: medium and low temperature, walk-in coolers and freezers, evaporators, TXVs and EEVs, defrost systems, pressure controls, ice machines, reach-ins and troubleshooting.