Technical Instructions Document No. 155-746 EA GND-1 January 27, 2011 OpenAir™ GND Series Electronic Damper Actuator UL Listed Fire/Smoke and Smoke Control Dampers 2-Position, 15-second Run Time, 15-second Spring Return Time N474 Siemens Industry, Inc. Description The OpenAir direct coupled, fast-acting, two-position, spring return electronic actuators are available as 24 Vac/dc, 120 Vac, and 230 Vac models. They are intended for use on UL-listed smoke control dampers and combination fire/smoke rated dampers. Features • Optional built-in auxiliary switches: Fixed switch points at 5° and 85° rotation. • Optional built-in Electronic Fusible Link (EFL) capability with four temperature ratings: 165°F (74°C), 212°F (100°C), 250°F (121°C), 350°F (177°C). • Reversible fail-safe spring return. • All metal housing. • Pre-cabled Teflon® insulated lead wires. • Fifteen-second operation at rated torque, temperature and voltage. Application This actuator is used for the control of dampers requiring up to 53 lb-in (6 Nm) driving torque. It is intended for control of UL-listed smoke control dampers and combination fire/smoke HVAC dampers. This actuator is designed to meet the 2002 revisions to the UL 555/555S and the AMCA Standard 520 specifications. Technical Instructions OpenAir GND Series Electronic Damper Actuator UL Listed Fire/Smoke Control Dampers Document No. 155-746 January 27, 2011 Page 2 Siemens Industry, Inc. Product Numbers G Direct-coupled Electronic Fire and Smoke Damper Actuator N Spring Return 53 lb-in (6 Nm) D 15 second run time 1 24 Vac/dc 2 120 Vac 3 230 Vac 2 2-position 1 Standard version 6 Two auxiliary switches .1 Fire and smoke shaft adapter UAssembled in USA /BBulk pack 10 /FElectronic Fusible Link (EFL) connection /F/BEFL connection and bulk pack 10 Warning/Caution Notations WARNING Personal injury/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. Service WARNING: Do not open the actuator. Personal injury may occur if opened. Opening the actuator voids the warranty. If the actuator is inoperative, replace the unit. OpenAir GND Series Electronic Damper Actuator UL Listed Fire/Smoke Control Dampers Technical Instructions Document No. 155-746 January 27, 2011 Siemens Industry, Inc. Page 3 Specifications Power supply Operating voltage 24 Vac ±20% 24 Vdc +20%, -10% Frequency 50/60 Hz 120 Vac ±10% Frequency 60 Hz 230 Vac ±10% Frequency 50/60 Hz Power consumption 24 Vac/dc running 20 VA/12W holding 8 VA/6W Power Consumption 120 Vac/230 Vac running 20 VA holding 9 VA Function Running torque 53 lb-in (6 Nm) (minimum) Stall torque (minimum) 160 lb-in (18 Nm) Torque reduction at elevated temperature Less than 10% Runtime for 90° 15 seconds nominal closing (on power loss) with spring return 15 seconds maximum Nominal angle of rotation 95° Life Expectancy Minimum 35,000 full stroke cycles Mounting Damper shaft size .5-inch (12,7 mm) round Damper shaft length, minimum 1.4-inch (36 mm) Housing Enclosure NEMA 1 Material Die cast aluminum alloy Ambient conditions Operation 0°F to 140°F (-18°C to 60°C) one time 350°F (177°C) Storage and transport –40°F to 158°F (–40°C to 70°C) Ambient humidity (non-condensing) Maximum 95% rh non-condensing Teflon® cable 400°F (200°C) Fixed Dual End Switches Fixed Dual End Switches AC rating 24 Vac to 250 Vac, 24 Vdc 6A resistive/ 2 FLA/12 LRA Temperature rating 350°F (177°C) Agency certification UL873 cUL C22.2 No. 24-93 AS/NZS 2064 1/2:1997 Conforms to CE requirements for the EMC and low voltage directives Australian Electromagnetic Compatibility (EMC) per AS/NZS 4251.1/2:1999 (C-tick) Miscellaneous Pre-cabled connection FEP Teflon® jacketed Length: 3 ft (0.9m) 19/30 strand 18 GA Dimensions 9-in × 3.25-in × 3-in D (229 mm × 83 mm × 76 mm) Weight ≈ 4 lb (1.8 kg) Country of Origin USA Technical Instructions OpenAir GND Series Electronic Damper Actuator UL Listed Fire/Smoke Control Dampers Document No. 155-746 January 27, 2011 Page 4 Siemens Industry, Inc. Accessories EA1127R1 Figure 1. Electronic Fusible Link (EFL) ASK79.165 (165°F [74°C] operation) ASK79.212 (212°F [100°C] operation) ASK79.250 (250°F [121°C] operation) ASK79.350 (350°F [177°C] operation) NOTE: Determine and order appropriate actuator before selecting EFL. Operation When power is applied, the actuator coupling moves toward the open position, 90°. The actuator opens in 15 seconds nominal, 90° at 60 Hz. In the event of a power failure or when operating voltage is turned off, the actuator returns to the "0" position. The return time is 15 seconds nominal for 90°. The National Fire Protection Association NFPA 92A Standard for Recommended Practice for Smoke-Control System and UL 864 Standard for Control Units and Accessories for Fire Alarm Systems, require weekly self-tests for dedicated smoke control equipment used in a smoke control system. The National Fire Protection Association NFPA 72 Standard for National Fire Alarm Codes states that all life-safety systems are to be functionally checked at least annually. The GND actuator does not require any periodic cycling to function properly as an integral part of an active smoke control damper system. Check the smoke control damper/actuator every time you functionally check your smoke detectors, emergency lights, and/or power generators for operation. Installation Refer to the installation instructions (See 129-402) for detailed guidelines. CAUTION: Read and carefully follow the Installation Instructions to avoid equipment damage. OpenAir GND Series Electronic Damper Actuator UL Listed Fire/Smoke Control Dampers Technical Instructions Document No. 155-746 January 27, 2011 Siemens Industry, Inc. Page 5 Wiring All wiring must conform to NEC and local codes and regulations. Wire Designations Function Color M BLACK (NEUTRAL) RED (SUPPLY) GREEN (GROUND) EA0941R1 Supply Red 24 Vac/dc Neutral Black Ground Green Figure 2. Function Color M WHITE (Neutral) BLACK (Line) GREEN (Ground) EA1167R2 Line Black Neutral White 120 Vac Ground Green Figure 3. FunctionColor CAUTION: Line Brown Neutral Blue M BLUE (Neutral) BROWN (Line) GREEN (Ground) EA0609R2 The actuator must be wired with a 230 Vac line with respect to neutral and the ground lead must be connected for proper protection of the actuator. Any other connection, such as phase-to-phase, can damage the actuator. 230 Vac Ground Green Figure 4. Wire Color Switch Makes Switch Breaks Switch 5° Gray < 5° > 5° 85° Yellow > 85° < 85° YELLOWGRAY 855 EA1163R2 NOTE: Both sets of contacts are open when actuator is between 5° and 85°. Fixed Dual End Switches CAUTION: Mixed switch operation to the switching outputs of both fixed dual end switches (5° and 85°) is not permitted. Figure 5. 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. Technical Instructions OpenAir GND Series Electronic Damper Actuator UL Listed Fire/Smoke Control Dampers Document No. 155-746 January 27, 2011 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. Product or company names mentioned herein may be the trademarks of their respective owners. © 2011 Siemens Industry, Inc. Siemens Industry, Inc. Building Technologies Division 1000 Deerfield Parkway Buffalo Grove, IL 60089 USA + 1 847-215-1000 Your feedback is important to us. If you have comments about this document, please send them to sbt_technical.editor@siemens.com Wiring, Continued Document No. 155-746 Printed in the USA Page 6 NOTE: When ordered, GND Electronic Fusible Link models come pre-wired for coupling with EFL sensor. EA1166R1 Figure 6. Molex connector for use with Siemens EFL Dimensions MANUAL OVERRIDE EA1148R2 1.2 (30) 1.2 (30) 3.2 (81) .99 (25.1) .8 (19,2) .8 (19,2) 8.0 (200,1) Figure 8. Dimensions of OpenAir GND Actuator in Inches (Millimeters). Next >