POWER AVAILABILITY 3U POD™ USER MANUAL Power Output Distribution 208 Volt
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INTRODUCTION AND SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IMPORTANT SAFETY INSTRUCTIONS ! WARNING DO NOT ATTEMPT TO SERVICE THIS PRODUCT YOURSELF. OPENING OR REMOVING THE COVER MAY EXPOSE YOU TO DANGEROUS VOLTAGES, EVEN WHEN THE AC CORD IS DISCONNECTED FROM THE ELECTRICAL SOCKET. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL. SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation and operation of the 3U POD™. This product is designed for commercial / industrial use only, with Liebert UPS systems.
GLOSSARY OF SYMBOLS • Indicates AC Input. Indicates AC Output. i Consult the manual for additional information. UTILITY UTILITY lamp indicates local power is available and the load may be transferred to bypass the UPS. UPS UPS lamp indicates UPS power is available and the load may be transferred to the UPS to provide computer-grade power to the load.
INTRODUCTION AND SYSTEM DESCRIPTION Congratulations on your choice of the Liebert 3U POD™. The Liebert 3U POD provides maintenance bypass capability as well as power output distribution. The Liebert 3U POD can be used on UPSs in the rack mount or tower configuration. The Liebert 3U POD provides an isolated path of power for your UPS system for preventive maintenance or service. System Description The 3U POD has two modes of operation: UPS (UPS available) and UTILITY (maintenance bypass).
INSTALLATION AND START-UP Unpack and Inspect the 3U POD NOTE This manual provides instructions for the 3U POD only. Refer to your UPS manual for UPS operation and installation instructions. 1. Unpack the 3U POD carefully, noting the packing method. Retain the box and packing material for possible future shipments. 2. Visually inspect the 3U POD for freight damage. Report damage to the carrier and your local dealer or Liebert representative. 3.
Start Up the POD NOTE Be sure to complete the rack mount installation before proceeding, as described in the previous section, Mount the POD in the Rack. 1. If you already have a UPS installed, turn off all connected loads and unplug them from the UPS. Turn off the UPS and disconnect the UPS input cord. 2. Make sure the 3U POD rotary switch is in the UTILITY position. Plug the POD input cord (labeled UTILITY) into the utility outlet (wall receptacle). WARNING: The 3U POD is now electrically live.
INDICATOR LAMPS UTILITY Indicator Lamp This orange lamp is illuminated when utility power is present (see Figure 5). It signals that you may transfer the loads to maintenance bypass (UTILITY mode) operation via the rotary switch. During a utility power outage, this lamp will be off and the UPS will supply battery back-up power to the connected loads. UPS Indicator Lamp This green lamp is illuminated when there is output power available from the UPS (see Figure 5).
OPERATION Transfer to Maintenance Bypass To transfer to maintenance bypass (utility) from UPS, use the following steps: 1. Ensure the UTILITY lamp (orange) is illuminated. If the lamp is not illuminated, refer to Troubleshooting section. 2. Transfer the rotary switch from UPS to UTILITY, provided the UTILITY lamp is illuminated on the 3U POD. 3. Turn the UPS off. 4. Disconnect the two cables connecting the UPS to the 3U POD. 5. You may now service the UPS.
SPECIFICATIONS Transfer Time (to and from maintenance bypass) < 6 milliseconds Operating Ambient Temperature 0°C to +40°C (32°F to 104°F) Storage Ambient Temperature -20°C to +60°C (-4°F to 140°F) Dimensions with brackets W x D x H: mm (in.) 482.6 x 133 x 133 (19.0 x 5.24 x 5.
TROUBLESHOOTING Problem UTILITY lamp (orange) not illuminated. Cause Solution Utility not present. Call qualified service personnel to restore power to socket. 3U POD input cord not connected to utility. Refer to 3U POD installation instructions in this manual: • Installation and Start-Up and • Mount the POD in the Rack. UPS output power not present. Turn on UPS. Refer to UPS user manual. UPS input and/or output cord not connected to 3U POD.
POWER AVAILABILITY 3U POD™ The Company Behind the Products With over a million installations around the globe, Liebert is the world leader in computer protection systems.
