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Greenwich South Water Street Upgrade (United States)

June 23rd, 2009

This station is one of the four major stations in Greenwich, CT USA.  It pumps directly into the force main and sees an inflow of about 500 GPM into its very small well. If you would like to see video of the inflow into the well send me an email. If the station were to go down there will almost certainly be an overflow because they have only 20 minutes to respond. The station is equipped with a 2 VFD’s , backup generator,  mixer and a grinder.

The PLC operating the station used PID to keep a constant level in the well but the alternation feature did not work so someone would visit the station everyday to alternate the lead pump via the touch panel. The station used to have a an indicator panel separate from the PLC display that indicated what alarms were present. All three components (PLC, touch panel, indicator) were removed and only a MSU3MP took their place. One of the main reasons the town wanted to undertake the replacement of the PLC’s is the maintenance cost of the PLC programming. Most municipalities outsource the PLC programming. The MultiSmart has enabled them to get rid of the maintenance cost while adding the many features of the MultiSmart into the station.

Greenwich South Panel before installing MultiSmart

Greenwich South Panel before installing MultiSmart

 

It took 4 hours to get the station running on the Colacino Demo unit and 4 days to complete the retrofit. This relatively small demo unit is used by Colacino for retrofits and for MultiSmart demos. It has 30 ft cables coming out of it that were temporarily wired into the panel to keep the station running while the work was performed.

Greenwich South Panel: removed components

Greenwich South Panel: removed components

 

 

 

colacino demo unit

Colacino demo unit

Greenwich South Water panel after installing MultiSmart

Greenwich South Water panel after installing MultiSmart

Praveen Karunambaran General News , ,

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