Findings: The relay always stay energize getting power from Digital Output I/O card. So sandfilter can’t maintain the backwash sequence. That’s why , we change the DDO module in FCP-1 panel. Now the SF is working normally.

Findings: The relay always stay energize getting power from Digital Output I/O card. So sandfilter can’t maintain the backwash sequence. That’s why , we change the DDO module in FCP-1 panel. Now the SF is working normally.

RTU Panel cleaning completed.
SL. No Name/Brand Model Location Type Remarks
DTW-101: 1. 2 Nos cooling fan do not work at CCTV panel. 2. LIT shows over range value. 3. Earthing bus bar panel…
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