Siemens Building Technology 658-071 Actuator 321894-706 it supports the critical operation

it supports the critical operation of the control board and fill valves

thermal shock

85 IWC (Inches Water Column) set point

including the BAC-1 series

2" step opening and electrical requirements

Siemens Building Technology 658-071 Actuator 321894-706 it supports the critical operationThe Siemens Building Technology 658 071 is a professional grade Replacement Actuator with Trim engineered specifically for the Powertop 658 Series. As a Normally Open configuration, this pneumatic assembly is a critical component for technicians maintaining sequence and changeover valve operations in commercial HVAC systems. Designed for a 3 4" line size with a 6. 3 Cv flow coefficient, it provides precise fluid control, ensuring optimal pressure drop