Siemens Industry, Inc.
Technical Instructions
Document No. 155-784
October 20, 2016
OpenAir® Electronic Damper Actuators
GDE Series
Enhanced Non-spring Return Rotary
The OpenAir direct coupled enhanced non-spring return rotary electric actuators are
designed for two-position/floating or modulating control of dampers.
Selectable modulating control signal (0 to 10 Vdc or 2 to 10 Vdc).
24 Vac/dc compatible.
New line voltage (34x models) for 100 to 240 Vac two-position/floating control.
Integral 1/2-inch conduit connection.
Manual override.
Independently adjustable dual auxiliary switches available.
cUL and UL listed; certified
These actuators are used in constant or variable air volume installations for control of
HVAC dampers requiring up to 44 lb-in (5 Nm) of torque.
Modulating
0(2) to 10 Vdc
* For conduit adaption, order an ASK76.1U Conduit Adapter. See Accessories.