Bryner_Ploutz_ER_SPECS_w-o_calcs___new.pdf

1. General

1.1 Scope of Work

CONSTRUCTION SPECIFICATION

CS-UT-263 VARIABLE FREQUENCY DRIVES {VFD)

CS-UT-263

The contractor shall furnish, and install a pump control system designed to operate one pump using Variable Frequency Drives (VFDs) as described herein. The control system shall be designed utilizing proven technology in control design for constant pressure, constant flow rate, or a combination of flow and pressure ranges to provide the desired operating conditions of the pumping system. The control system shall be operator and maintenance friendly to ensure ease of system set up and to limit down time.

The pump control system shall be capable of operating one electric pump motor as manufactured by TBD by sponsor

Model: TBD by sponsor

Horsepower: 25hp *See drawings

Full-load amps (FLA):

Incoming power shall be: Vac Phase, 60Hz

Line/load reactor required by electric supplier? Yes

The desired operating ranges for pump output pressures and flow-rates are:

Minimum Pressure (psi): 32.5 psi

Maximum Pressure (psi): 35.5 psi

Minimum Flow (gpm): 400gpm

Maximum Flow (gpm): 786 gpm

No

The control system shall use a pressure transmitter and/or flow meter connected to the discharge piping of the pump.

The factory assembled system shall include:

USDA-NRCS-UT 36/48 March 2010