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Technical Instructions OpenAir™ GCA Series Spring Return 160 lb-in Electronic Damper Actuators

Document Number 155-173P25

December 11, 2014

Page 22 Siemens Industry, Inc.

Troubleshooting

WARNING:

To avoid injury or loss of life, pay attention to any hazardous voltage

(for example, 120 Vac) when performing checks.

• Check that wires are connected correctly.

• Check that offset (start point) and span are set correctly, if used.

• Use a Digital Multimeter (DMM) to verify that the operating voltage is within range.

• If the actuator is not working, check the damper for blockage. If blocked, remove the

obstacle and cycle the actuator power off and on. The actuator should resume normal

operating mode.

Dimensions

Figure 29. Dimensions of the ASK75.1U Weather Shield in Inches (Millimeters).

Figure 30. Dimensions of the ASK75.7U Weather Shield in Inches (Millimeters).

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Siemens LB 75 Series Specifiche Pagina 22