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Symmetra PX 10-40 kW 208 V Operation & Maintenance Guide - 990-4104B 21
Module and Card Replacement
How to replace Power Modules
To de-activate the module, turn Locking Latch (with arrow pointing towards the module)
counter-clockwise until it points downwards.
Unscrew spring-activated knobs on both sides of the module until they pop out. Standing on
both sides of the UPS, 2 people can now pull the module almost free of the UPS (the lock
mechanism prevents the module from being pulled clear of the UPS). With the module still
resting in the UPS, release the lock by pushing the black plastic tab on either side of the module.
Pull out the module. Reverse procedure for installation of replacement module. Display shows
message saying it has registered the new module.
WARNING!
Only trained persons familiar with the construction and operation of the
equipment, as well as the electrical and mechanical hazards involved, may install
and remove system components.
WARNING!
Before handling any modules in the UPS, ensure that the System Enable Switch is
in the Stand-By position. See Total Power Off procedure.
Power Module will not operate unless locking latch is engaged.
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