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APC EPW9 - page 1
Installation and Operation Emergency Power Off System test ...
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APC EPW9 - page 2
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 specic development plan. Therefore, Schneider Electric IT Corporation assumes no liability for damag ...
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APC EPW9 - page 3
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 Afri ...
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ii Emergency Power Of f System Installation and Operation 990–161 1C-001 ...
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APC EPW9 - page 5
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 certied electricians may install the system and the wiring to the products IT controls. W ARNING: Assem ...
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APC EPW9 - page 6
Safety Instructions for Europe, Middle East, and Africa W ARNING: Only certied electricians may install the system and the wiring to the products IT controls. 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 cont ...
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APC EPW9 - page 7
Specications Electrical Input/Output V oltage 24 VDC 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 ...
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APC EPW9 - page 8
Overview Emergency Power Off System The Emer gency Power Off (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 b ...
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APC EPW9 - page 9
Note: W iring, conduits, and mounting hardware are not provided. 990–161 1C-001 Emergency Power Off System Installation and Operation 5 ...
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APC EPW9 - page 10
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, I ...
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APC EPW9 - page 11
3. Install an appropriate tting with a lock-nut for each knockout used. 4. Connect conduits to the ttings. Note: If not using conduits, run the cables through the knockout directly . Mount the EPO (running conduits or cables behind the wall) One120mm(4in)squarejunctionbox T wo120mm(4in)squarejunctionb ...
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APC EPW9 - page 12
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 t in 13 mm (½ in) conduits ...
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APC EPW9 - page 13
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 devi ...
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APC EPW9 - page 14
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 i ...
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APC EPW9 - page 15
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 ...
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APC EPW9 - page 16
Cascade the Auxiliary Device with Wire 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 rst EPO box to terminal block position 9 on the second EPO box. 2. Continue until all boxes are connected. (See the diagram in “Cascade Multiple EPO Boxe ...
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APC EPW9 - page 17
Note: If an APC FM Series Precision Air Conditioning System connected to the EPO box, pressing the check point will shut off 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 open ...
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APC EPW9 - page 18
Operation Engage the System 1. Lift the shield on any of the installed EPO boxes and press the button. A red ag 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 ag up until it catches (2). Pulling the button does ...
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APC EPW9 - page 19
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 specic instructions on how to apply power to the device. 990–161 1C-001 Emergency Power Off System Installation and Operation 15 ...
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Wiring Diagram 16 Emergency Power Off System Installation and Operation 990–161 1C-001 ...
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990–161 1C-001 Emergency Power Off System Installation and Operation 17 ...
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Worldwide Customer Support Customer support is available at no charge via e-mail or telephone. Contact information is available at www .apc.com/support/contact © Schneider Electric. APC and the APC logo are owned by Schneider Electric Industries S.A.S. or their af liated companies. All other trademarks are property of their respective owners. 9 ...
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