APC PM3 Surge Protector User Manual


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Display Board Removal and Replacement Instructions
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Carefully remove the front cover by loosening the four (4) captive screws that secure the front cover to the
chassis. Insure the ribbon cables attached to the diagnostic board are not mechanically stressed or become
unplugged. DO NOT ALLOW THE DIAGNOSTIC FACEPLATE TO HANG BY THE RIBBON CABLES!
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PREVENTIVE MAINTENANCE - Inspection and Cleaning
Inspection of the SPD should be performed periodically to maintain reliable system performance and continued tran-
sient voltage surge protection. While it is difficult to establish a preventive maintenance schedule because conditions
vary from location to location, inspections for failed modules and other signs of trouble utilizing the built-in diagnos-
tics should be performed on a routine basis (weekly or monthly).
REPLACEMENT PARTS
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