Technical Instructions Document No. 155-782 February 26, 2019 OpenAir® GPC Series Spring Return, 35 lb-in (4 Nm), Rotary Electronic Damper Actuators Description The OpenAir GPC Series direct-coupled spring return electronic actuator is designed for modulating, two-position, and floating control of building HVAC dampers.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-782 February 26, 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 GPC Spring Return Actuator.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-782 February 26, 2019 Specifications, Continued Control Signal Input signal (wires 8–2) voltage input signal (GPC16x.1P) input resistance 0(2) to 10 Vdc (max. 35 Vdc) >100K ohms Feedback Signal Position output signal (wires 9–2) voltage output signal (GPC16x.
Technical Instructions Document Number 155-782 February 26, 2019 OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electronic Damper Actuators Accessories ASK75.7U: GPC 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® GPC Series, Spring Return, 35 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-782 February 26, 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 = TorqueRating Damper Area SF1 4. Select a spring return actuator using Table 1.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-782 February 26, 2019 DIP Switch Functionality GPC 161 NOTE: The black position indicates the active switch setting. Description Label 2 to 10 Vdc Description 0 to 10 Vdc Function Control signal selection Not In Use Inverse Acting Direct-Acting Input signal inversion Figure 5. DIP Switches.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-782 February 26, 2019 Wire Designations Each wire has the standard symbol printed on it. See Table 3. Table 3. Wire Designations.
Technical Instructions Document Number 155-782 February 26, 2019 OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electric Damper Actuators Wiring Diagrams, Continued GPC16x 24 Vac/dc Modulating Control Class III Figure 8. GPC32x 100 to 240 Vac 2-Position Control Figure 9. Special Applications GPC16x 4 to 20 mA Figure 10. GPC16x 4 to 20 mA Applications. Page 8 Siemens Industry, Inc.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electronic Damper Actuators Start-Up/ Commissioning 1. Technical Instructions Document Number 155-782 February 26, 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 GPC16x.1P Actuator with input signal inversion switch set to Inverse Acting, will start driving towards 90°. GPC16x Spring Return Modulating Control 24 Vac/dc b.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electric Damper Actuators Technical Instructions Document Number 155-782 February 26, 2019 GPC13x Spring Return Floating 24 Vac/dc 1. 2. GPC32x Two-Position 100 to 240 Vac 1. 2. 3. 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. Remove the control signal to wire 6 (violet). d.
OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-782 February 26, 2019 Dimensions In Inches (Millimeters) Figure 11. GPC Series Actuators and Mounting Bracket. Siemens Industry, Inc.
Technical Instructions Document Number 155-782 February 26, 2019 OpenAir® GPC Series, Spring Return, 35 lb-in, Rotary, Electric Damper Actuators Figure 12. Dimensions of the ASK75.7U Weather Shield in Inches (Millimeters). 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.
