Specifications

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WaterMax

SUPER SPORTS TURF PUMP STATION

Variable Frequency Drive Control System

GENERAL SPECIFICATIONS

Project Name: ?

Project Location: ?

Pumping System Model #: WaterMax SSTV-HP-Voltage-Phase-Flow-Boost

Total Design Criteria: Quantity of Pumps: ?

Station Design Capacity: ? GPM @ ? PSI Discharge

08/22/06

SCOPE OF WORK

It is the intention of this specification to describe an automatic, prefabricated, self-enclosed, pump station for

irrigation purposes. Design, fabrication, testing and service shall be the sole responsibility of the pump station

manufacturer. The pump station shall provide water to the irrigation system while simultaneously maintaining

a constant discharge pressure by using a prefabricated pump station with variable frequency drive (VFD)

pumps for pressure regulation, under varying flow conditions up to the maximum specified capacity.

Construction shall include a fabricated steel plate and skid assembly to support all components during

shipping and to serve as the installed mounting base.

SECTION 1: GENERAL

1.1 The prefabricated pumping station shall have a minimum capacity and discharge pressure at skid

edge as stated in the technical specifications.

1.2 The station shall be completely wired, piped, hydraulically and electrically tested prior shipment.

1.3 The discharge manifold from the pump station shall terminate at or near the pump station skid edge

and be provided by the pump station manufacturer.

The pumping station shall be model number WaterMax SST as manufactured by WATERTRONICS, INC. 525

Industrial Drive, P.O. Box 530, Hartland, Wisconsin 53029-0530, www.watertronics.com

SECTION 2: MANUFACTURER REQUIREMENTS

2.1 MANUFACTURER

The pump station shall be manufactured by Watertronics Inc., Hartland, Wisconsin. The following information

must be furnished by the contractor or manufacturers representative:

a. A complete specification and submittal of all major components for the proposed pump

station with individual pump performance verification.

b. A detailed pump station proposal drawing complete with component location, sizes and

dimensions specific to the installation.

c. A complete electrical schematic for all high and low voltage circuits showing breaker/fuse

sizing, wire numbering and color.

d. Pump station manufacturers U.L. file number for the entire pump station.

e. A copy of the manufacturers certificate of insurance.

Summary of content (13 pages)

PAGE 1
WaterMax SUPER SPORTS TURF PUMP STATION Variable Frequency Drive Control System GENERAL SPECIFICATIONS Project Name: ? Project Location: ? Pumping System Model #: WaterMax SSTV-HP-Voltage-Phase-Flow-Boost Total Design Criteria: Quantity of Pumps: ? Station Design Capacity: ? GPM @ ? PSI Discharge 08/22/06 SCOPE OF WORK It is the intention of this specification to describe an automatic, prefabricated, self-enclosed, pump station for irrigation purposes.
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SECTION 3: PUMPS AND MOTORS 3.1 PUMPS Pumps shall be electric motor driven, horizontal centrifugal with mechanical shaft seal, volute case and impeller. The shaft seal shall be a self-adjusting mechanical type to prevent leakage and eliminate the need for drain piping. The volute case shall be precision machined from gray cast iron and engineered to modern hydraulic standards. It shall be possible to rotate the discharge connection to any of four positions.
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4.4 A wash-down 3/4" brass hose bib shall be provided downstream of the control valves, upstream of the main station isolation valve PUMP CHECK VALVES Pump check valve shall be of the silent operating type that begin to close as forward velocity diminishes and be fully closed at zero velocity preventing flow reversal. Valve bodies shall be cast from ASTM-126C cast-iron or better and shall be free from blow holes, sand holes, and other impurities.
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d. Adjustable pressure ramp-up and ramp-down to assure surge free pressure regulation. e. After a drop in pressure, gradually increase system pressure over a user adjustable period of time to eliminate surging. f. Rate of change of pressure control to anticipate and eliminate rapid pressure changes caused by changing system demand. Discharge pressure regulation shall be by a Variable Frequency Drive.
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monitoring and control purposes. The PLC shall contain two communication ports for monitoring and programming purposes. The PLC shall contain an EEPROM, battery backed RAM and non-volatile memory for storage of critical configuration data. 5.7 ALARMS Controls shall shut down the pump station in the event of the following alarm conditions. The controls shall attempt to restart the system after alarm shutdown or loss of power to minimize loss of irrigation.
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5.9 e. Alarm status with time stamping, display of pump station conditions at shutdown and restart. Alarms will be displayed in red when activated and a separate listing will be displayed in green when the alarm is reset. Alarms will be logged to a compact flash disk allowing the service technician to upload data to a spreadsheet type program. f.
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                          System status: System O.K. or System Pressurizing Seven, (7) different pressure regulation points based on seven different user definable GPM flow brackets Set single pressure set point value. (Desired system pressure set point regardless of flow) Toggle between either Single Set Point or Flow Based Pressure Set Points Pump station’s historic total gallons pumped. Not user re-settable.
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 The data and the user given description is then also available in the PumpLink. OCX utility for use by any irrigation equipment company’s software.
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5.14 PHASE MONITOR The incoming power and each motor shall be protected by a phase loss/low voltage system dropout relay to de-energize the pump station control circuit or motor contactor if either a phase failure, phase reversal or low voltage condition occurs. If, after attempted automatic re-starts the phase failure/low voltage alarm condition remains, the alarm must be manually reset. Individual motor overloads will also act as phase monitors for each motor. 5.
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SECTION 9: PAINTING (steel enclosure) Painting of the entire unit shall consist of a multi-step coating system which includes metal preparation, and a two part polyurethane finish having a total dry film thickness of not less than 5 mils. Paint shall be ultraviolet insensitive. Pump station components shall be painted Watertronics green. SECTION 10: TESTING: The pump station manufacture shall conduct a complete factory dynamic test of the pump station prior to shipment.
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12.4 Discharge Drop Pipe (Optional; must be called for in the Technical Specification) The pump station manufacturer shall supply the discharge drop pipe for connection to the irrigation main line. The pipe will be of Schedule 40 steel, painted to match the pump station and sized for depth and termination based on the irrigation contractors requirements or as shown on the bid documents. 12.
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Touch Screen Operator Interface and include a run light, HOA switch and speed pot. In manual mode, the user can manually adjust pump speed. A Clear PVC calibration tube shall be included on the injection pump suction to accurately calibrate the metering pump over a minimum 30-second test. Chemical Storage Tank Level Transducer: If called out for in the specifications, a fluid separated level transducer shall be provided to monitor chemical storage tank level of each tank.
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9.4 Chemical Storage Tanks (Optional; must be called for in the Technical Specification) Scope: Pump system manufacturer shall provide the following as part of the pumping system. These items shall be shipped loose and installed on site. If there are any discrepancies between this section and the main specifications, this section takes precedence. Installation /Start-up: It is the responsibility of the customer to provide any necessary pad or containment for tanks prior to installer arrival.