For contractors managing Trane replacement parts

as well as GDHE-50/75 models

allowing for localized ambient feedback rather than relying on a single central thermostat

maintaining the operational design life of the primary equipment without the risk of communication failures common with generic alternatives

reducing labor time during annual inspections

Siemens Industrial Controls 49SAS01 Selector Switch THPU32HP7Y For contractors managing Trane replacementField ready and engineered for industrial grade control, the Siemens 49SAS01 Selector Switch is a critical component for managing HVAC systems, motor starters, and automation panels. This 3 position Hand Off Auto (H O A) selector switch features an A3 configuration, providing the essential manual to automatic override required for troubleshooting and system testing. Built with a chrome plated metal front ring and a durable white on black short lever