Siemens Building Technology 134-1085 Stat 318423-701 and one normally closed terminal

and one normally closed terminal (opens on rise for heating)

Optimized Flow Performance: Features a generous 4 Cv flow coefficient for efficient fluid and gas management

As a vital HVAC furnace seal

How do I know if my modulating gas valve is failing

What is the maximum number of zones supported

Siemens Building Technology 134-1085 Stat 318423-701 and one normally closed terminalThe Siemens 134 1085 is a professional grade line voltage room thermostat engineered for high demand heating and cooling applications in commercial and industrial environments. This heavy duty thermostat features a Single Pole Double Throw (SPDT) switch action, capable of handling inductive loads up to 1 hp and resistive loads reaching 22 Amps at 120 Vac. Designed for versatility, the Siemens ET 134 series allows for either an exposed setpoint knob or