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  1. 1 wrz 2024 · ASC77.1E - External auxiliary switch assembly 1 switch; ASC77.2E - External auxiliary switch assembly 2 switches; ASK71.1 - Rotary/linear mounting kit for duct mounting; ASK71.4 - Crank Arm Kit, w/Bracket for GCA, GBB, GIB, GKB Damper Actuators. ASK71.9 - Crank Arm, Universal

  2. control of return air, mixed air, exhaust, and face and bypass dampers requiring up to 160 lb-in (18 Nm) torque. They are designed for applications that require the damper to return to a fail-safe position when there is a power failure.

  3. Siemens offers a complete portfolio of damper actuators tailored to suit your HVAC requirements. With a wide selection of positioning forces, control signals, communication protocols and add-on options, the product range meets all your needs.

  4. 1 wrz 2024 · ASK78.3U - Actuator Shaft Insert, 3/8", Package of 10. ASK75.3U - Weathershield Kit, GEB and GMA Series Damper Actuators. ASK75.1U - Weathershield Kit, GCA, GBB, GIB Series Damper Actuators. ASK74.1U - Shaft Adapter, Special. 985-107 - Heater/Weathershield Assembly for GMA and GEB Damper actuators.

  5. Figure 1. External Auxiliary Switch Kit Contents. Product Description The OpenAir External Auxiliary Switch (EAS) provides switch functionality for standard model damper actuators with easy installation for in-service units. Product Number ASC77.2U Specifications Dual Auxiliary Switches AC rating 24 Vac to 250 Vac AC 6A resistive AC 2 FLA, 12 ...

  6. 19 kwi 2022 · modulating, two-position, and floating control of building HVAC dampers. Features • Brushless DC motor technology with stall protection • Bi-directional fail-safe spring return • Models available with dual, independently adjustable auxiliary switches • Unique self-centering shaft coupling • Manual override

  7. A full range of spring return actuators, from 20 lb.-in. to 160 lb.-in., make OpenAir Damper Actuators the ideal OEM choice for economizer damper, roof top unit and air handling unit control. The 35 lb.-in. GPC Series actuator provides long lasting economizer control in a small footprint.

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