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Installation and
Operation
Emergency Power Off System
test
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Legal Disclaimer The information presented in this manual is not warranted by the Schneider Electric IT Corporation to be authoritative, error free, or complete. This publication is not meant to be a substitute for a detailed operational and site specific development plan. Therefore, Schneider Electric IT Corporation assumes no liability for damages, violations of codes, improper installation, system failures, or any other problems that could arise based on the use of this Publication. The infor
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T able of Contents IMPORT ANT SAFETY INSTRUCTIONS SA VE THESE INSTRUCTIONS ............................................................................................................... 1 Safety Instructions for North America ................................................................... 1 Safety Instructions for Europe, Middle East, and Africa ................................... 2 Specifications ..............................................................................................
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Emer gency Power Of f System Installation and Operation ii 990–161 1C-001
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IMPORT ANT SAFETY INSTRUCTIONS SA VE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation, operation, and maintenance of the EPO system. Safety Instructions for North America W ARNING: Only certified electricians may install the system and the wiring to the pr oducts IT contr ols. W ARNING: Assembly has not been evaluated for emergency life critical applications, but is intended for emergency equipment power off. Note: W iring from the system
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Safety Instructions for Europe, Middle East, and Africa W ARNING: Only certified electricians may install the system and the wiring to the pr oducts IT contr ols. W ARNING: Assembly has not been evaluated for emergency life critical applications, but is intended for emergency equipment power off. Note: W iring from the system to the products IT controls can either be installed in conduits or installed without conduits if the wires are in accordance with IEC/EN 60364-5-52 or equivalent local elec
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Specifications Electrical Input/Output 24 VDC V oltage 48 VDC/240 V AC (External circuit) Current 1 A at 24 VDC 1 A at 48 VDC (External circuit) Frequency 50/60 Hz Circuits (qty) 9 Contact state Normally Open (NO) Physical Dimensions (W×L×D) EPO box 226 × 251×66 mm (8.9×9.9×2.6 in) Shipping 305 × 305×140 mm (12×12×5.5 in) W eight EPO box 2.9 kg (6.4 lb) Shipping 3.1 kg (6.9 lb) Mounting Surface mount Connection Removable panels in rear , 13 mm (½ in) and 6 mm (¾ in) knockouts on top and bottom P
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Overview Emergency Power Off System The Emer gency Power Of f (EPO) System consists of one or more wall-mounted, push-button EPO boxes. Each EPO box provides a single point of equipment shutdown for up to eight APC devices and one third-party device (such as an upstream breaker), using Normally Open (NO) contact closure connections. An EPO box can be cascaded with other EPO boxes to support multiple points of equipment shutdown. Note: Although the EPO is designed specifically for APC products, t
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Note: W iring, conduits, and mounting hardware are not provided. Emer gency Power Of f System Installation and Operation 990–161 1C-001 5
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Installation Prepare the EPO 1. Open the EPO System box by removing the screws on the side. Keep the screws for use after the system is installed. The box will not close securely without the screws in place. 2. Mount the system in a readily-accessible area, on a wall near the principal entrance doors, according to NEC Articles 645.10 and 645.1 1, IEC/EN 60354-5-537, or equivalent local regulation. There are two dif ferent procedures for mounting the system, depending on whether you are running c
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3. Install an appropriate fitting with a lock-nut for each knockout used. 4. Connect conduits to the fittings. Note: If not using conduits, run the cables through the knockout directly . Mount the EPO (running conduits or cables behind the wall) Two 120 mm (4 in) square junction boxes One 120 mm (4 in) square junction box One switch box up to 4-gang in size 1. Install a junction box or a switch box behind the wall. The EPO box will fasten directly to the box. Use one of the options above. Emer g
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2. Run the conduits (or cables) from the connected devices to the junction or switch box. If using conduits, it will contain all wiring from the connected devices and all cascading cables. Remove the knockouts required for installation. Note: When planning conduit requirements, consider that two cascading cables will fit in 13 mm (½ in) conduits and four cascading cables will fit in 19 mm cascading cables will fit in 13 mm (¾ in) conduits. See “Cascade Multiple EPO Boxes “ for more information.
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7. Reinforce the EPO box with 6 mm (¼ in) screws in the corner mounting holes. Note: The top two 6 mm (¼ in) mounting holes may be blocked by some junction boxes. In this instance, use only the bottom two 6 mm (¼ in) mounting holes for reinforcement. Connect Devices to the EPO Box Connect APC devices to terminals 1–8. Connect an auxiliary device to terminal 9. Connect only one 0.10–0.75 mm² (24–18 A WG) wire pair to each terminal block. 1. Attach EPO circuits to each device according to the spec
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5. Connect a suitable ground or PE wire to the #8-32 ground stud in the lower left corner of the EPO box. Mount Additional EPO Boxes There are two alternatives for wiring additional EPO boxes. Either cascade the boxes only to wire devices to one box (see “Cascade Multiple EPO Boxes “ ), or wire devices directly to each EPO box (see “Direct W iring Alternative “ ). Cascade Multiple EPO Boxes When cascading EPO boxes, connect a wire pair from each device to the first EPO box according to the proce
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EPO PAIRS 5 –8 EPO PAIRS 1 –4 APC APC APC APC APC APC APC APC Note: The recommended maximum total distance of wire, to run per circuit is 300 m (1000 ft). Cascade the APC Devices with CA T -5 Cables Connect the CA T -5 cables to the jacks inside the EPO box. Each cable can support up to four APC device wire pairs. Follow these guidelines when connecting CA T -5 cables: • Use only the bottom jacks (3 and 4) if cascading Box 1 Box 2 four (4) or fewer devices. Output Input 1 2 • Use both the bottom
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Cascade the Auxiliary Device with W ire Pairs 1. After wires are run from auxiliary device (1) to terminal block position 9, run a second set of wires (2) from terminal block position 9 on the first EPO box to terminal block position 9 1 on the second EPO box. 2. Continue until all boxes are connected. (See 2 the diagram in “Cascade Multiple EPO Boxes “ for reference.) Direct W iring Alternative If the APC devices are centrally located between exit doors, it may be more practical to run separate
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Note: If an APC FM Series Precision Air Conditioning System connected to the EPO box, pressing the check point will shut of f functionality to the unit, but the unit will still be powered. B. After verifying the wiring, close the system box, making sure not to pin wires or disturb connections, and secure with the screws, previously removed when opening the box. C. As a final test, apply power to all APC devices and auxiliary devices, and press the EPO button. All connected devices should power O
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Operation Engage the System 1. Lift the shield on any of the installed EPO boxes and press the button. A red flag will drop down from the box, providing an easy visual mark as to which EPO box in your room has been activated. Reset the EPO System 1. Pull the button towards you (1) and push the flag up until it catches (2). Pulling the button does not bring power back to the connected equipment; it only resets the EPO system. Close the shield after resetting the system. 2 1 Emer gency Power Of f
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Reset the Equipment Apply power to the devices according to the procedures for each device. Note: Refer to the operation manual included with each device for specific instructions on how to apply power to the device. Emer gency Power Of f System Installation and Operation 990–161 1C-001 15
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W iring Diagram Emer gency Power Of f System Installation and Operation 16 990–161 1C-001
