VA 22 13 36-2011 PACKAGED WASTEWATER PUMP UNITS.pdf

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1、01-11 22 13 36 - 1 SECTION 22 13 36 PACKAGED, WASTEWATER 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 Packaged wastewater pump units. P

2、ump capacity is indicated on Drawings. 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, COMMISSIONING OF PLUMBING SYSTEMS. Requirements for commissioning, systems readiness checklist,

3、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 Data: 1. Pump: a. Manufacturer and model. b. Operating speed. c. Capacity. d. Characteristic performa

4、nce 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 reports. D. Complete operating and maintenance manuals including wiring diagrams, technical data

5、sheets and information for ordering replaceable parts: 1. Include complete list indicating all components of the systems. 2. Include complete diagrams of the internal wiring for each item of equipment. 3. Diagrams shall have their terminals identified to facilitate installation, operation and mainte

6、nance. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-01-11 22 13 36 - 2 E. Completed System Readiness Checklist provided by the Commissioning Agent and completed by the Contractor, signed by a qualified technician and dated on the date of completio

7、n, 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 referenced. The publications are referenced in the text by the basic designation only. B. Nationa

8、l Electrical Manufacturers Association (NEMA): ICS6-93 (R2006).Industrial Control and Systems Enclosures 250-2008Enclosures for Electrical Equipment (1000 Volts Maximum) C. Underwriters Laboratories, Inc. (UL): 508-99 (R-2008). Standards For Industrial Control Equipment D. American Water Works Assoc

9、iation (AWWA) AWWA E-103 for Horizontal and Vertical line shaft pumps only. 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 and

10、 assure that the electrical characteristics specified below are clearly shown on the proper drawings. 2.1 WASTEWATER PUMP UNITS SPEC WRITER NOTE: Coordinate and assure that the electrical characteristics specified below are clearly shown on the proper drawings. A. / Centrifugal, / grinder type / ver

11、tical type designed for 60 degrees C (140 degrees F) maximum water service. Driver shall be electric motor with rigid support. Systems may include one, two, or more pumps as required by Contract Documents / Pump / Pumps / shall be capable of continuous duty cycle. Where hazardous environment conditi

12、on exists, explosion proof 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, bronze, cast iron or stainless steel non-clog, to accommodate 50 mm (2”) solids / Grinder pumps.,

13、316 SS impeller and 440 SS cutter and cutter plate /. C. Shaft: Stainless steel or other approved corrosion-resisting metal. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-01-11 22 13 36 - 3 D. Bearings: As required to hold shaft alignment, anti-fri

14、ction type for thrust and permanently lubricated. SPEC WRITER NOTE: Use NEMA 4 for dripproof (vertical) or NEMA 6P for completely enclosed (submersible). E. Motor: Maximum 40 degrees C (104 degrees F) ambient temperature rise, use NEMA 4 for drip proof (vertical) / NEMA 6P for completely enclosed (s

15、ubmersible.), / voltage and phase as shown in schedule on Electrical drawings conforming to NEMA 250-Type 4. Size the motor capacity to operate the pump at any point on the pump curve. Refer to Section 22 05 12, GENERAL MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT. F. Starting Switch: Manually-operated

16、, tumbler type, as specified in Section 26 29 11, LOW-VOLTAGE MOTOR STARTERS. G. Automatic Control and Level Alarm: Furnish a control panel in / a NEMA 1 enclosure for indoors / a NEMA 4X enclosure for outdoors /. The controls shall be suitable for operation with the electrical characteristics liste

17、d on the Electrical drawings. The control panel shall have a level control system with switches 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 swit

18、ches, ultrasonic level sensors, transducers, or other appropriate equipment. The high water 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 B

19、AC net compatible open-protocol type interface to DDC Controls System. 1. The circuitry of the control panel shall include: a. Power switch to turn on/off the automatic control mechanism b. HOA switches to manually override automatic control mechanism c. Run lights to indicate when pumps are powered

20、 up d. Level status lights to indicate when water in sump has reached the predetermined on/off and alarm levels e. Magnetic motor contactors f. Disconnect/breaker for each pump g. Automatic motor overload protection 2. For a duplex system, provide an alternating relay to automatically alternate lead

21、off and standby duties of each pump of a duplex unit at the end of each pumping cycle. Standby pump shall start when water level in sump rises to a predetermined level that indicates excessive inflow or failure of the lead pump. Provided by IHSNot for ResaleNo reproduction or networking permitted wi

22、thout license from IHS-,-,-01-11 22 13 36 - 4 3. 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 the pump will run for a minimum cycle of one minute. Sensors shall be located to activate th

23、e alarm adequately before the water level rises to the inlet pipe. 4. Provide two separate power 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, th

24、e alarm system will still function. Each power supply is to be wired in its own conduit. Wiring 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

25、 of moisture and of flammable and/or corrosive gases. H. Provide a union, check and ball valve in the discharge from each pump. I. Removal/Disconnect System: In a system utilizing a submersible pump, where sump depth, pump size, or other conditions make removal of the pump unusually difficult or uns

26、afe, a removal/disconnect system shall be provided. The system will consist of a discharge fitting mounted on vertical guide rails attached to the sump. The pump shall be fitted with an adapter fitting that easily connects to/disconnects from the discharge fitting as the pump is raised from or lower

27、ed 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 the sump depth is greater than five feet or other conditions exist to make the removal of the pump difficult or hazardous, the system s

28、hall 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 the piping. PART 3 - EXECUTION 3.1 STARTUP AND TESTING A. Make tests as recommended by product manufacturer and listed standards and und

29、er actual or simulated operating conditions and prove full compliance with design and specified requirements. 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

30、and alarm functions. C. When any defects are detected, correct defects and repeat test. The test shall include system capacity an all control and alarm functions. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-01-11 22 13 36 - 5 D. The commissioning

31、 Agent will observe startup and contractor testing of selected equipment. Coordinate the startup and contractor testing schedules with the Resident Engineer and Commissioning Agent. Provide a minimum of 7 days prior to notice. 3.2 COMMISSIONING A. Provide commissioning documentation accordance with

32、the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS for all inspection, startup, and contractor testing required 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

33、 as part of a larger system. Refer to Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS and related sections for contractor responsibilities for system commissioning. 3.3 DEMONSTRATION AND TRAINING A. Provide services of manufacturers technical representative for four hours to instruct VA Personne

34、l 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-,-,-