The Johnson Controls ST-D24 is a precision 10k ohm Type II thermistor engineered for accurate air temperature monitoring within commercial HVAC ductwork

it helps maintain the airflow patterns around the electrode tip

this 1-inch orifice plays a critical role in determining the flow capacity and discharge characteristics of the regulator assembly

leading to equipment failure

if the reading falls outside the 88-106 uF tolerance

White-Rodgers 752-1 Switch Els PW 17895 The Johnson Controls ST-D24 isThe White Rodgers 752 1 is a high performance SPDT changeover switch engineered for hydronic systems utilizing 1 2 inch (5 8 inch O. D.) tubing. Built for demanding mechanical environments, this automatic changeover control facilitates the critical transition between heating and cooling circuits in combination hot and chilled water systems. It eliminates the need for manual intervention by automatically toggling the thermostat to operate the