Maintenance
127
Liebert
®
APM
™
* To be completed by Liebert Services customer engineer at time of startup.
12.3.5 Torque Requirements
All electrical connections must be tight. Refer to
and
and
provide the torque values for the connections in the UPS and batteries. Use these
values unless the equipment is labeled otherwise.
!
WARNING
Risk of electric shock, explosive reaction, hazardous chemicals and fire. Can cause equipment
damage, personal injury and death.
Do not use equalize charging with valve-regulated, lead-acid batteries, such as those used in
Liebert battery cabinets. Refer to the battery manufacturer’s manual, available on the
manufacturer’s Web site, for specific information about equalize charging.
Table 52
Battery voltage record
Date
Float Voltage
(Volts DC)
Nominal Voltage
(Volts DC)
Ambient Temp. (°F)
Table 53
Terminal block with compression lugs (for control wiring)
AWG Wire Size
or Range
Lb-in
Nm
#22 - #14
3.5 to 5.3
0.4 to 0.6
Table 54
Battery retorque values
Battery Mfr.
Battery Model #
Retorque Value
Enersys
12HX100-FR
40 in-lb (4.5N-m)
12HX150FR
40 in-lb (4.5N-m
12HX205-FR
58 in-lb (6.5N-m)
12HX300-FR
58 in-lb (6.5N-m)
12HX330-FR
58 in-lb (6.5N-m)
12HX400-FR
58 in-lb (6.5N-m)
12HX505-FR
58 in-lb (6.5N-m)
12HX540-FR
58 in-lb (6.5N-m)
