Maintenance

Table 13 Battery retorque values

Battery

Battery

Retorque

Manufacturer

Model No.

Value

 

UPS12-270(FR)

32 lb-in.

Dynasty

UPS12-310(FR)

52 lb-in.

UPS12-370(FR)

52 lb-in.

 

 

UPS12-475(FR)

100 lb-in.

C&D Batteries

LS12-100

100 lb-in.

12G-17

100 lb-in.

 

 

HX205

60 lb-in.

 

HX300

60 lb-in.

Enersys

HX370

60 lb-in.

 

HX400

60 lb-in.

 

HX500

60 lb-in.

If you have a different model battery, contact Liebert Global Services for the required torque value.

To access battery cell terminals, disconnect the inter-tier cable and two shelf retaining screws. Once disconnected, insulate (with protective boot or electrical tape) the cables to prevent accidental shorts. The battery shelf can now be pulled out. Tighten each terminal connection to the retorque value.

When replacing a battery, the terminal connections must be cleaned and tightened. Disconnect and insulate the cables connected to the battery. Secure each battery shelf with retaining screws when maintenance is complete.

Rack-Mounted Batteries

If the UPS system uses a battery other than a factory-supplied Matching Battery Cabinet, perform maintenance on the battery as recommended in the battery manufacturer’s maintenance manual, available on the manufacturer’s Web site.

Table 14 Battery voltage record

Date

Float Voltage (Volts DC)

Nominal Voltage (Volts DC)

Ambient Temp. (°F)

(To be completed by Liebert Global Services customer engineer at time of start-up)

105

Page 111
Image 111
Liebert 1000kVA manual Rack-Mounted Batteries, Battery retorque values, Battery voltage record