Maintain and optimize HVAC systems, including condensers, air handling units (AHUs), refrigerant circuits, heating systems, and DX coils to ensure consistent temperature and humidity conditions that support candy production quality and food safety. Perform preventive and corrective maintenance on steam systems, including generators, pumps, deaerator tanks, hot water holding tanks, economizers, valves, steam traps, limit switches, and piping networks to maximize system reliability and energy efficiency.