C&D Technologies RS-2044 msEndurII Series - Manual (Page 26)

RS02044/1114/CD 26 www.cdtechno.com
If the side restraint plate or the cell cover spacing in a module needs to be adjusted follow the steps
below. The technician must use properly insulated tools and all appropriate battery safety methods.
For improper cell side restraint plate positioning:
• Loosen – do not remove - the side restraint bolts to allow the cell side restraint plate to be
moved to the proper location
• Push the cell side restraint plate to the back of the module and away from the jar/cover
seal joint
• Hand tighten the side restraint plate hardware while ensuring the bolts are perpendicular
to the cell side restraint plate. This can be accomplished by turning the bolt while
simultaneously pulling the bolt towards the outside of the module.
• Complete the assembly as noted in 6.5.2 notes 10 and 11
• Check the torque on all the terminal bolts as noted in section 6.9
For excessive cell spacing resulting in GAP values not to specification:
• The cell cover spacing can be reduced by tightening the side restraint hardware to move
the cell side restraint plates. Start at the top tier module following the steps noted in
section 6.5.2.
• Refer to Table 2 in Appendix C for a guide on allowable GAP between the inside of the
module and the outside of the cell side restraint plate.
• After setting the GAP on all tiers as required, check the torque on all the terminal bolts as
noted in section 6.9
9.6 Performance Tests
If desired by the customer, a full-load performance test can be conducted at the user’s original
specified discharge rate or the appropriate rate based on connector sizing per the following
procedure:
• Equalize charge the batteries if necessary, refer to section 8.2 equalization notes.
• Let batteries float charge for 72-hours.
• Perform the annual inspection.
• Run a discharge test at the system designed rate per IEEE 1188.
9.6a UPS Transfer Tests
A monthly transfer test for UPS systems should not exceed 30 seconds of the battery discharge time at
the user’s originally specified discharge rate to verify system load transfer and electrical system
performance. The time that is required to synchronize the UPS and return to rectifier power must be
taken into account when calculating total discharge time.
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