Venstar VST1100FS Thermostat Els PW 17895 the third pole often controls

the third pole often controls the blower or a secondary heat bank

Heavy-Duty Construction: Built with galvanized steel components for durability in high-moisture or industrial duct environments

the 752-2 is factory-calibrated to open at 85°F and close at 70°F (Red-Black leads)

ensuring the blower motor maintains peak performance and heat throw

Venstar VST1100FS Thermostat Els PW 17895 the third pole often controlsThe Venstar VST1100FS is a professional grade, 7 day programmable thermostat engineered specifically for multi stage HVAC systems. As a direct replacement for HH07AT215, this unit offers a seamless retrofit for contractors maintaining older Carrier or standard 24V installations. This 2H 2C heat pump thermostat supports up to 2 stage heating and 2 stage cooling, featuring an intuitive auto changeover function to manage temperature fluctuations without