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Installation and Electrical Connections
5
3.0 INSTALLATION AND ELECTRICAL CONNECTIONS
Unpack the 3U POD carefully, noting the packing method. Retain the box and packing material for
possible future shipments.
Visually inspect the 3U POD for freight damage. Report damage to the carrier and your local dealer,
Liebert representative or the Liebert Worldwide Support Group.
3.1 Power Connection Options
The 3U POD may be connected to the UPS in either of two ways:
• The unit is shipped ready for connection with NEMA cords and receptacles (Cord-Receptacle
Installation).
• Alternatively, the input and output connections may be converted to hardwire applications
(Alternate Hardwire Installation).
Follow the instructions for the preferred installation option, as listed in Table 1.
3.2 Cord-Receptacle Installation and Start-Up
1. Verify that the 3U POD input cord, UPS input cord and receptacle for the UPS have the same
type of configuration.
2. If you already have a UPS installed, turn off any connected loads and unplug them from the UPS.
Turn off the UPS and disconnect the UPS input cord.
3. Make sure the 3U POD
rotary switch is in the UTILITY position. Plug the 3U POD input cord
(labeled “UTILITY”) into the utility outlet (wall receptacle).
WARNING: The 3U POD is now electrically live. The UTILITY lamp (amber) should be illumi-
nated.
4. Plug the UPS input cord into the receptacle on top of the 3U POD labeled “CONNECT UPS LINE
CORD HERE.”
WARNING: The UPS system is now electrically live.
5. Connect the second 3U POD input cord (labeled “UPS”) into the matching load receptacle on the
rear of the UPS.
6. Plug in all loads to the load receptacles. The 3U POD now powers your equipment in the UTILITY
mode.
7. Turn ON the loads and ensure all are up and operating according to specification.
8. Start the UPS according to its specific user manual.
9. Verify that the UPS lamp (green) on the 3U POD is illuminated. If so, transfer the rotary switch
from UTILITY to UPS. The load is now being supplied with conditioned power through the UPS.
10. Before any operation or procedure, always verify that both the UPS lamp (green) and the
UTILITY lamp (amber) are illuminated before changing the status of the rotary switch.
Table 1 Installation options
Type of installation Description For installation instructions, refer to:
Cord-Receptacle
Installation
As shipped, the MP2-220N is ready to connect
using NEMA cords and receptacles.
3.2 - Cord-Receptacle Installation and Start-Up
Alternate Hardwire
Installation
The input and output connections may be
converted to hardwire applications.
4.0 - Alternate Hardwire Installation
NOTE
This manual provides instructions for the 3U MP2-220N POD only. Refer to your UPS manual
for UPS operation and installation instructions.