up to 80 psi for demanding commercial HVAC maintenance

Do I need to drain the boiler to replace these sensors

while the color-coded lead wires (White Common/Black 120V Primary

technicians should check for 24VAC across the side terminals

Schneider Electric (Barber Colman) MA40-7043 Actuator Els PW 17895 up to 80 psi forDesigned for mission critical reliability in HVAC systems, the Schneider Electric (Barber Colman) MA40 7043 Actuator is a direct coupled damper actuator engineered for two position control. This DuraDrive spring return actuator delivers a robust 35 lb in torque, ensuring positive close off for airtight damper and ball valve applications. Operating on 24 VAC VDC power, the unit draws only 2. 9 watts during operation and 0. 8 watts during holding,