While the default is 2-10 VDC

ideal for low-pressure domestic and commercial steam boilers

maintain OEM specifications across Trane SHE5346

Always verify the specific model and serial number of the furnace to ensure a match with the mounting bracket and electrical harness

Tecumseh K71-34 Relay Kit 320788-704 While the default is 2-10The Tecumseh K71 34 Relay Kit is a critical electrical component engineered for high reliability motor starting in commercial and residential refrigeration systems. This genuine Tecumseh K71 34 relay kit is specifically designed for 115V single phase HVAC compressor troubleshooting and replacement, providing the necessary torque to initiate the start cycle on AE3425A AA1A and AE3425Y AA1A models. As a veteran grade OEM compressor relay, this kit