Installation Instructions Document No. 129-402 June 6, 2018 OpenAir™ GND Series Electronic Damper Actuator Designed for UL Listed Fire/Smoke and Smoke Control Dampers Item Number: 129-402, Rev. DA Page 1 of 5 a. Actuator b. Hex key – 3mm c. Eyelet and 1/4-inch hex head screw Figure 1. GND Actuator Parts. Product Description Step-by-step description for direct-coupled mounting of the OpenAir GND fast-acting two-position rotary electronic damper actuator. Actuator is intended for control of approved fire and smoke leakage-rated HVAC dampers. Product Numbers GND12x.1x GND22x.1x GND32x.1x Warning/Caution Notations WARNING: Personal injury or loss of life may occur if you do not follow a procedure as specified. CAUTION: Equipment damage or loss of data may occur if you do not follow a procedure as specified. Required Tools • 3 mm hex wrench (provided) • No. 2 Phillips screwdriver • 1/4-inch (6.4 mm) hex driver • Marker or pencil Prerequisites WARNING: Do not open the actuator housing. Installation Figure 2. Actuator Mounting Orientation. Figure 3. Actuator Internal End Stops.Document No. 129-402 Installation Instructions June 6, 2018 Page 2 of 5 Siemens Industry, Inc. Figure 4. Shaft Length and Proper Shaft Adapter Location. Figure 5. Fasten the Shaft Adapter to the Damper Shaft. Figure 6. 1. Insert the eyelet through housing ear. 2. Insert screw through eyelet and tighten using 1/4-inch (32 mm) hex driver. Figure 7. Tighten Conduit Screws (No. 2 Phillips Driver). Manual Override For adjustment of the damper/actuator when there is no power. Figure 8. Manual Override. CAUTION: Apply 60 in-lb to 90 in-lb (7 Nm to10 Nm) maximum torque to the shaft fixation set screws. All four screws must be tightened. CAUTION: Always turn key in direction of the arrow.Document No. 129-402 Installation Instructions June 6, 2018 Siemens Industry, Inc.Page 3 of 5 Wiring Diagrams NOTE: All wiring must conform to NEC and local codes and regulations. 24 Vac/dc FunctionColor SupplyRed NeutralBlack GroundGreen 120 Vac FunctionColor LineBlack NeutralWhite GroundGreen 230 Vac CAUTION: The actuator must be wired with a 230 Vac line with respect to neutral. The ground lead must be connected for proper protection of the actuator. Any other connection, such as phase-to-phase, can damage the actuator. FunctionColor LineBrown Neutral Blue Ground Green Fixed Dual End Switches Switch Wire Color Switch Makes Switch Breaks 5°Gray< 5°> 5° 85°Yellow > 85°< 85° NOTE: Both sets of contacts are open when actuator is between 5° and 85°. 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 four outputs of the fixed dual end switches, or UL-Class 2 voltage must be applied to all four outputs.Document No. 129-402 Installation Instructions June 6, 2018 Page 4 of 5 Siemens Industry, Inc. Wiring, Continued Electronic Fusible Link (EFL) Figure 9. GND EFL Models Come Pre-wired for Assembly. NOTE: The GND models pre-wired for assembly with the EFL (GNDxxx.1U/F) will only operate when an EFL, (ASK79.xxx) is attached. Maintenance CAUTION: The GND actuator does not require any periodic cycling to function properly as an integral part of an active smoke control damper system.The National Fire Alarm Code NFPA 72 states that all life safety systems are to be functionally checked at least annually.Check the smoke control damper/actuator every time you functionally check your smoke detectors, emergency lights, and/or power generators for operation. Electronic Fusible Link (EFL) Versions GNDxxx.1U/F contain wire with a Molex connector (See Figure 9) to accommodate an EFL. EFLs are purchased separately. See Table 1. Table 1. Electronic Fusible Link Product Numbers. Part Number Operation ASK79.165165°F (74°C) ASK79.212212°F (100°C) ASK79.250250°F (121°C) ASK79.350350°F (177°C) Notice top position of clip before attempting to couple with sensor. Molex connector for use with Siemens EFL.Document No. 129-402 Installation Instructions June 6, 2018 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 trademark of Siemens Schweiz AG. Other product or company names mentioned herein may be the trademarks of their respective owners. © 2018 Siemens Industry, Inc. Siemens Industry, Inc. Building Technologies Division 1000 Deerfield Parkway Buffalo Grove, IL 60089 + 1 847-215-1000 Your feedback is important to us. If you have comments about this document, please send them tosbt_technical.editor.us.sbt@sbt.siemens.com Document No. 129-402 Printed in the USA Page 5 of 5 Dimensions Figure 10. Dimensions of GND OpenAir Actuator in Inches (mm). References Technical Instructions OpenAir Electric Damper Actuator Designed for UL Listed Fire/Smoke and Smoke Control Dampers 155-746Next >