VA 22 13 33-2010 PACKAGED SUBMERSIBLE SEWERAGE PUMP UNITS.pdf

1、11-10 22 13 33 - 1 SECTION 22 13 33 PACKAGED, SUBMERSIBLE SEWERAGE PUMP UNITS SPEC WRITER NOTE: Delete between /-/ if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION A. /Packaged submersibl

2、e centrifugal sewerage pump units / Packaged grinder type sewage pump unit /. See schedule on Drawings for pumps and capacity and heads. 1.2 RELATED WORK A. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING. B. Section 22 05 12, GENERAL MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT. C. Section 22 08 00

3、 COMMISSIONING OF PLUMBING SYSTEMS. Requirements for commissioning, systems readiness checklist, and training. D. Section 26 29 11 - LOW-VOLTAGE MOTOR STARTERS. 1.3 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Manufacturers Literature and Dat

4、a: 1. Pump: a. Manufacturer and model. b. Operating speed. c. Capacity. d. Characteristic performance curves. 2. Motor: a. Manufacturer, /frame and type/. b. Speed. c. Current Characteristics and W (HP). d. Efficiency. C. Certified copies of all the factory and construction site test data sheets and

5、 reports. D. Complete operating and maintenance manuals including wiring diagrams, technical data sheets and information for ordering replaceable parts: 1. Include complete list indicating all components of the system. 2. Include complete diagrams of the internal wiring for each item of equipment. 3

6、. Diagrams shall have their terminals identified to facilitate installation, operation and maintenance. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 22 13 33 - 2 E. Completed System Readiness Checklist provided by the Commissioning Agent and

7、 completed by the contractor, signed by a qualified technician and dated on the date of completion, in accordance with the requirements of Section 22 08 00 COMMISSIONING OF PLUMBING SYSTEMS. 1.4 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extent

8、referenced. The publications are referenced in the text by the basic designation only. B. National Electrical Manufacturers Association (NEMA): ICS6-93 (R2006) Industrial Control and Systems Enclosures 250 2008 . Enclosures for Electrical Equipment (1000 Volts Maximum) C. Underwriters Laboratories,

9、Inc. (UL): 508-99 (R2008) . Standards For Safety Industrial Control Equipment PART 2 - PRODUCTS SPEC WRITER NOTE: Make material requirements agree with applicable requirements specified in the referenced Applicable Publications. Update and specify only that which applies to the project. Coordinate a

10、nd assure that the electrical characteristics specified below are clearly shown on the proper drawings. 2.1 SUBMERSIBLE SEWERAGE PUMP UNITS SPEC WRITER NOTE: Coordinate and assure that the electrical characteristics specified below are clearly shown on the proper drawings. A. Duplex or Multiplex / C

11、entrifugal / Grinder Type /, submersible pumps, designed for 60 degrees C (140 degrees F) maximum water service. Driver shall be electric motor with rigid type support. Systems to include two or more pumps as required by Contract Documents. Where hazardous environment condition exists, explosion pro

12、of pumps shall be installed. 1. Pump housings may be cast iron, bronze, or stainless steel. Cast iron housings for submersible pumps shall be epoxy coated. B. Impeller: / Brass or bronze, non-clog, to accommodate 50 mm (2”) solids / Grinder pumps, 316SS impeller and 440SS cutter and cutter plate. C.

13、 Shaft: Bronze, stainless steel or other approved corrosion-resisting metal. D. Bearings: As required to hold alignment, anti-friction type for thrust, permanently lubricated. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 22 13 33 - 3 SPEC WR

14、ITER NOTE: NEMA 6P for completely enclosed (submersible). E. Motor: Maximum 40 degrees C (104 degrees F) ambient temperature rise, completely enclosed, voltage and phase as shown in schedule on Electrical drawings conforming to NEMA 250-Type 6P. Size the motor capacity to operate pump without overlo

15、ading the motor at any point on the pump curve. Refer to Section 22 05 12, GENERAL MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT. F. Starting Switch: Manually-operated, tumbler type, as specified in Section 26 29 11, LOW-VOLTAGE MOTOR STARTERS. G. Automatic Control and Level Alarm: Provide a control pan

16、el in a / NEMA 1 enclosure for indoors / NEMA 4X enclosure for outdoors / NEMA 7 enclosure for hazardous environment areas /. The controls shall be suitable for operation with the electrical characteristics listed on the Electrical drawings. The control panel shall have a level control system with s

17、witches to start and stop pumps automatically, and to activate a high water alarm. The level control system will include sensors in the sump that detect the level of the liquid. The sensors may be float type switches, ultrasonic level sensors, transducers, or other appropriate equipment. The high wa

18、ter alarm shall have a red beacon light at the control panel and a buzzer, horn, or bell. The alarm shall have a silencing switch. Provide auxiliary contacts for remote alarming to the Energy Control Center and BAC net compatible open-protocol type interface to DDC Controls System. The circuitry of

19、the control panel shall include: 1. Power switch to turn on/off the automatic control mechanism 2. HOA switches to manually override automatic control mechanism 3. Run lights to indicate when pumps are powered up 4. Level status lights to indicate when water in sump has reached the predetermined on/

20、off and alarm levels 5. Magnetic motor contactors 6. Disconnect/breaker for each pump - Automatic motor overload protection H. For a duplex system, provide an alternating relay to automatically alternate leadoff and standby duties of each pump of a duplex unit at the end of each pumping cycle. Stand

21、by pump shall start when water level in sump rises to a predetermined level that indicates excessive inflow or failure of the lead pump. I. Sensors that detect the level of water in the sump shall be so arranged as to allow the accumulation of enough volume of liquid below the normal on level that t

22、he pump will run for a minimum cycle of one minute. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 22 13 33 - 4 Sensors shall be located to activate the alarm adequately before the water level rises to the inlet pipe. J. Provide two separate p

23、ower supplies to the control panel, one for the control/alarm circuitry and one for power to the pump motors. Each power supply is to be fed from its own breaker so that if a pump overload trips a breaker, the alarm system will still function. Each power supply is to be wired in its own conduit. Wir

24、ing from the sump to the control panel shall have separate conduits for the pump power and for the sensor switches. All conduits are to be sealed at the basin and at the control panel to prevent the intrusion of moisture and of flammable and/or corrosive gases. K. Sump: Provide / cast iron / fibergl

25、ass / polyethylene / basin with gas tight covers. Covers shall have a manhole with a bolted cover of minimum size to inspect and service the pumps, vent connection, and openings for pumps and controls. L. Provide a union, check and ball valve in the discharge from each pump. M. Removal/Disconnect Sy

26、stem: Where indicated on drawings, a removal/disconnect system shall be provided / where sump depth, pump size or other conditions make removal of the pump unusually difficult or unsafe / the system will consist of a discharge fitting mounted on vertical guide rails attached to the sump. The pump sh

27、all be fitted with an adapter fitting that easily connects to/disconnects from the discharge fitting as the pump is raised from or lowered into the sump. The discharge piping will connect to the discharge fitting so that it is not necessary to disconnect any piping in order to remove the pump. Where

28、 the sump depth is greater than five feet or other conditions exist to make the removal of the pump difficult or hazardous, the system shall include a rail guided quick disconnect apparatus to allow the pump to be pulled up out of the sump without workers entering the sump and without disconnecting

29、the piping. System to be compatible with and furnished by pump manufacturer. PART 3 - EXECUTION 3.1 STARTUP AND TESTING A. Make tests as recommended by product manufacturer and listed standards and under actual or simulated operating conditions and prove full compliance with design and specified req

30、uirements. Tests of the various items of equipment shall be performed simultaneously with the system of which each item is an integral part. B. The tests shall include system capacity, and all control and alarm functions. C. When any defects are detected, correct defects and repeat test. Provided by

31、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11-10 22 13 33 - 5 D. The commissioning Agent will observe startup and contractor testing of selected equipment. Coordinate the startup and contractor testing schedules with the Resident Engineer, Commissioning Ag

32、ent and local municipal authorities where applicable. Provide a minimum of 7 days prior to notice. 3.2 COMMISSIONING A. Provide commissioning documentation accordance with the requirements of Section 22 08 00 COMMISSIONING OF PLUMBING SYSTEMS for all inspection, startup, and contractor testing requi

33、red above and required by the System Readiness Checklist provided by the Commissioning Agent. B. Components provided under this section of the specification will be tested as part of a larger system. Refer to Section 22 08 00 COMMISSIONING OF PLUMBING SYSTEMS and related sections for contractor resp

34、onsibilities for system commissioning. 3.3 DEMONSTRATION AND TRAINING A. Provide services of manufacturers technical representative for four hours to instruct VA Personnel in operation and maintenance of units. B. Submit training plans and instructor qualifications in accordance with the requirements of Section 22 08 00 COMMISSIONING OF PLUMBING SYSTEMS. - - - E N D - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-