I recently completed a job on a commercial 10-ton Trane unit. The unit had to be charged and restarted to ensure its proper operation. As a highly skilled and experienced home service professional, I carefully assessed the unit's electrical system and made the necessary adjustments to ensure a smooth charge. I also checked the unit's refrigerant levels and made any necessary adjustments to optimize its performance. Finally, I tested the unit's functionality and ensured it was operating at optimal efficiency. This job required a deep understanding of HVAC systems and a high level of skill and expertise to ensure the unit was charged and restarted correctly.