Siemens SSA81U Zone Valve Electronic Actuator with 3 Position Control Signal and Non Spring Return Description
The Siemens Electric Zone Valve Actuator works with Siemens 599 Series Zone Valves. It is a normally closed, 3-position, non-spring return (fail-in-place) actuator and features 24 Vac operating voltage, with 1/10-inch (2.5 mm) stroke and manual override. This actuator is UL listed for plenum installations. Typical applications include hot or chilled water for zones with radiators; floor heating via manifolds; fan coil units; cooling ceilings; wall-mounted boilers and VAV applications.