Emerson 3U MP2-220N Conversion From Cord-Receptacle to Hardwire, Screws Used for Internal Wiring

Page 11

Alternate Hardwire Installation

4.3Conversion From Cord-Receptacle to Hardwire

Two wiring access panels on the front of the 3U POD allow access to the wiring compartments. Each access door is retained using four Phillips head screws.

1.Remove the eight Phillips head screws from the wiring access panels on the front of the unit. Save the screws.

2.Holding the panels aside, disconnect the three wires that connect each panel to the internal terminal block. Remove the panels. DO NOT LOOSEN THE UPPER TERMINAL BLOCK

SCREWS USED FOR INTERNAL WIRING.

CAUTION

IF UTILITY LAMP IS ILLUMINATED MAINTENANCE BYPASS POSITION

MAINTENANCE

UPSBYPASS

AVAILABLEAVAILABLE

UPSUTILITY

16A/208V~

CONNECT TO

UPS OUTPUT

3.Install flexible conduit with wiring to the applicable conduit entry holes on the side or rear of the unit.

4.Terminate the wiring to the internal terminal blocks. The wiring compartments provide terminal blocks to connect Line, Neutral, and Ground for both the UTILITY input and the LOAD output.

5.When wiring is complete and secure, install the two blank hardwire access plates supplied with the unit, using the eight screws removed in Step 1.

CAUTION

IF UTILITY LAMP IS ILLUMINATED MAINTENANCE BYPASS POSITION MAY BE SELECTED

SWITCH TO UPS POSITION ONLY WHEN UPS LAMP IS ILLUMINATED

UPS

MAINTENANCE

BYPASS

AVAILABLE

AVAILABLE

UPS

UTILITY

Blank plate (Left)

UTILITY PANEL

16A/208V~

CONNECT UPS

LINE CORD HERE

CONNECT TO UPS OUTPUT

Blank plate (Right)

LOAD PANEL

6. The unit is now ready to use.

Properly grounded (earthed) equipment provides multiple benefits

High quality ground (earth) connections are required for the equipment ground conductors (protective earth) and grounding electrode conductor (power system earth connection) to reduce electrical noise and provide for safe operation of the UPS and connected loads. Conduit used alone without a ground- ing conductor wire is not an acceptable connection. Size ground (protective earth) conductors equal to circuit conductors.

For wiring information, refer to Table 2.

7

Image 11
Contents 3U MP2-220N POD Power AvailabilityPage Figures Page Important Safety Instructions Glossary of Symbols Introduction and System Description System DescriptionSide view of 3U POD with mounting bracket Rack Mount InstallationInstallation and Electrical Connections Power Connection OptionsCord-Receptacle Installation and Start-Up Electrical Connections Electrical Installation ConsiderationsAlternate Hardwire Installation Screws Used for Internal Wiring Conversion From Cord-Receptacle to HardwireIndicator Lamps Utility Indicator LampUPS Indicator Lamp Operation Transfer to Maintenance BypassTransfer to UPS Utility TroubleshootingSpecifications Product Warranty RegistrationSpecifications Page Locations Technical Support/ServiceCompany Behind the Products