Technical Instructions Document No. 155-760 EA GQD June 5, 2019 OpenAir® GQD Series Spring Return, 20 lb-in (2 Nm), Rotary Electronic Damper Actuators Description The OpenAir GQD Series direct-coupled spring return electronic actuator is designed for modulating, two-position, and floating control of building HVAC dampers.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 Warning/Caution Notations WARNING: Personal injury or loss of life may occur if you do not perform a procedure as specified. CAUTION: Equipment damage may occur if you do not perform a procedure as specified. Actuator Components Figure 1. Components of the GQD Spring Return Actuator.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 Specifications, Continued Control Signal Input signal (wires 8–2) voltage input signal GQD151.1P input resistance 2 to 10 Vdc (max. 35 Vdc) >100K ohms Feedback Signal Position output signal (wires 9–2) voltage output signal GQD151.1P maximum output current 2 to 10 Vdc +1 mA, -0.
Technical Instructions Document Number 155-760 June 5, 2019 OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electronic Damper Actuators Accessories ASK75.7U: GQD Actuators are UL listed to meet NEMA Type 4X requirements (a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hosedirected water, corrosion, and damage from external ice formation) when installed with an ASK75.7U Weather Shield and outdoor-rated conduit fittings.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 The type of actuator required depends on several factors: 1. Obtain damper torque ratings (lb-in/ft2 or Nm/m2) from the damper manufacturer. 2. Determine the area of the damper. 3. Calculate the total torque required to move the damper: Sizing Total Torque = Torque Rating Damper Area SF 1 4. Select a spring return actuator using Table 1.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 CAUTION: Mixed switch operation to the switching outputs of both dual end switches (5° and 85°) is not permitted. Either AC line voltage from the same phase must be applied to all six outputs of the fixed dual end switches, or UL-Class 2 voltage must be applied to all six outputs. DIP Switch Functionality GQD 151.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 Wire Designations Each wire has the standard symbol printed on it. See Table 3. Table 3. Wire Designations.
Technical Instructions Document Number 155-760 June 5, 2019 OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electric Damper Actuators Wiring Diagrams, Continued GQD15x.1P 24 Vac/dc Modulating Control Class III Figure 10. GQD22x.1U 120 Vac 2-Position Control Figure 11. Special Applications GQD15x.1P 4 to 20 mA Figure 12. GQD15x.1P 4 to 20 mA Applications. Page 8 Siemens Industry, Inc.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electronic Damper Actuators Start-Up/ Commissioning 1. Technical Instructions Document Number 155-760 June 5, 2019 Check Operation: a. Connect wires 1 (red) and 2 (black) to the 24 Vac/dc power supply. NOTE: With no input signal present, the GQD151 actuator with input signal inversion switch set to Inverse Acting, will start driving towards 90°. GQD15x.1P Spring Return Modulating Control 24 Vac/dc b.
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electric Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 GQD13x.1P Spring Return Floating 24 Vac/dc 1. 2. GQD22x.1U Two-Position 120 Vac 1. 2. 3. Service Troubleshooting Check Operation: a. Connect wires 1 (red) and 2 (black) to a 24 Vac/dc power supply. b. Apply a control signal (24 Vac/dc) to wire 6 (violet). Allow the actuator shaft coupling to rotate from 0 to 90°. c. Stop the control signal to wire 6 (violet).
OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-760 June 5, 2019 Dimensions In Inches (Millimeters) Figure 13. Dimensions of the ASK75.7U Weather Shield in Inches (Millimeters). Figure 14. GQDxx6.1x Actuator and Mounting Bracket. Siemens Industry, Inc.
Technical Instructions Document Number 155-760 June 5, 2019 OpenAir® GQD Series, Spring Return, 20 lb-in, Rotary, Electric Damper Actuators Dimensions, Continued In Inches (Millimeters) Figure 15. GQDxx1.1x Actuators Only. Figure 16. GQDxx6.1x with Conduit Box. Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. OpenAir is a registered trademark of Siemens Schweiz AG.
