If the metallic seats and springs show no signs of scale build-up

zone valves

this two-position valve body allows for tool-free actuator removal

Common Questions: Can this board replace other Carrier control models

or excessive shaft play that causes the blower wheel to wobble

White-Rodgers 176-6 Tstat Refrigerant If the metallic seats andThe White Rodgers 176 6 is a professional grade line voltage heating thermostat designed for high performance control in demanding mechanical environments. This SPST open on rise thermostat features a fixed 3F differential and a temperature range of 40F to 80F, ensuring precise thermal regulation for heavy duty 120V heating systems. Engineered with a locked case and an adjustable limited setting dial, this model prevents unauthorized tampering and