Content
# HCA Middle Well Bid notes
Questions:
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Why is there a PRV on the well line? You have a VFD.-
Suggest VFD and soft starter to be installed together in a climate controlled cabinet. N4X VFDs are expensive and hard to get.-
Is Nema4X necessary for electrical cabinets?-
Are individual conduits necessary for each instrument?-
How deep is the well pump? Suggest dv/dt filter on output of VFD-
Suggest semiconductor high-speed fuses on input to VFD-
Suggest adding a MCP to the power input side of the RVSS to allow for LOTO-
Is VFD input isolation contactor necessary? Bypass function can operate the output contactors, and power can be isolated manually. -
Radios are Cambium Networks (need model)
Materials & Subs:
Antenna tower Sent email to Advanced Technology Group
Pump PanelDrawing sht 20
PLC PanelPLC - AI-5 / DI-18 / DO-5 / AO-3 AB CompactLogixneed 25% sparesThey missed the IO for the chemical pumps. I added them to the totalsNetwork drawing sht 24Layout drawings sht 25 - 27Wiring drawings sht 28 - 34Spec section 406100 1.01.E.d.4 states all motor control devices shown on the schematics to be installed in the PLC panel
Radio Panel sht 35
SCADA Integration / Programming allowance shown to be \$85k in bid form
Panels are separate from the integration/programming. I am only contracting with the city for the integration/programming.
ExclusionsThe supply and/or installation of any and all conduit, wire, coax, and fiber optic cable.
Scope:
Pre con meeting
Testing / Training:Testing plan (PLC/HMI/SCADA)Training plan (PLC/HMI)Pre-startup testing (01 75 17 - 3) includes PLC to SCADAStart-up / Field TestingOperational Demonstration Test (8hrs) 01 75 17
Control Narrative
HMI Screens
SCADA Screens
Loop Drawings
?? Instrument installation details
?? Instrument calibration and configuration
406100-1.04 gives a good overview of the PCS supplier general requirements.
Close-outO&M Manual (PLC/HMI)