SECTION (15444) - DOMESTIC WATER PACKAGED BOOSTER PUMPS

Transcription

1 SECTION (15444) - DOMESTIC WATER PACKAGED BOOSTER PUMPS PART 1 GENERAL 1.01 SUMMARY A. Section Includes: 1. Packaged Domestic Water Booster Pumps B. Related Sections: 1.02 REFERENCES 1. Section (03300) - Cast-in-Place Concrete: for concrete bases. 2. Section (13900) - Fire Suppression Systems: for fire-suppression pumps. 3. Section (15050) Common Work Results for Plumbing 4. Section (15090) Common Motor Requirements for Plumbing Equipment: for general motor requirements. 5. Section (15110) General Duty Valves for Plumbing Piping 6. Section (15140) - Domestic Water Piping 7. Section (15440) - Domestic Water Pumps A. The American Society of Mechanical Engineers (ASME) Publications: 1. B31.9 Building Services Piping B. ASTM International (ASTM) Publications: (Former American Society for Testing and Materials) 1. A53 "Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless" 2. B88 Standard Specification for Seamless Copper Water Tube 3. B584 Standard Specification for Copper Alloy Sand Castings for General Applications C. Hydraulic Institute (HI) Publications: 1. ANSI/HI Centrifugal Pumps Nomenclature, Definitions, Applications and Operation D. National Electrical Manufacturer s Association (NEMA) Standards Publications: 1. ICS 2 Industrial Control and Systems Controllers, Contactors and Overload Relays Rated 6000 Volts 2. ICS 6 Industrial Control and Systems: Enclosures E. National Fire Protection Association (NFPA) Publications: "National Electric Code" F. Underwriter's Laboratories, Inc. (UL) Standards: A Standard For Wire Connectors and Soldering Lugs for Use With Copper Conductors B Standard for Wire Connectors for Use With Aluminum Conductors Standard for Industrial Control Equipment Standard for Motor-Operated Water Pumps PAGE 1

2 1.03 SUBMITTALS A. Shop Drawings: Show layout and connections for packaged booster pumps. Include setting drawings with templates, directions for installation of foundation and anchor bolts, and other anchorages. 1. Wiring Diagrams: Detail wiring for power, signal, and control systems and differentiate between manufacturer-installed and field-installed wiring QUALITY ASSURANCE A. Source Limitations: Obtain same type of packaged booster pumps through one source from a single manufacturer. B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction DELIVERY, STORAGE, AND HANDLING A. Retain shipping flange protective covers and protective coatings during storage. B. Protect bearings and couplings against damage. C. Comply with pump manufacturer's rigging instructions for handling. PART 2 PRODUCTS 2.01 MANUFACTURERS A. Approved Manufacturers: 1. Packaged Domestic Water Booster Pumps: a. Aurora Pump ( ) b. Peerless Pump Co. ( ) c. SynchroFlo, Inc. ( ) 2.02 PACKAGED DOMESTIC WATER BOOSTER PUMPS A. Description: Factory-assembled and -tested, packaged booster pump units; complying with UL 778; suitable for potable-water service. Multiplex packaged unit, with pumps, piping, valves, sensors, hydro-pneumatic tank, and controls for constant or variable speed operation per engineer of record. 1. Minimum Pressure Rating: 175 psig. 2. Pump Arrangement: Duplex, with two equal-size pumps. 3. Pumps: Comply with HI , "Centrifugal Pumps," for close-coupled, end-suction centrifugal pumps. a. Construction: Single stage, radially split, bronze fitted. b. Impeller: ASTM B584, cast bronze; statically and dynamically balanced, closed, overhung, single suction, and keyed to shaft. 4. Pumps: Comply with HI , "Vertical Pumps," for multistage barrel pumps. a. Construction: Multistage, bronze fitted. b. Impellers: ASTM B584, cast bronze; statically and dynamically balanced, closed or semiopen, and keyed to shaft. PAGE 2 REVISED: 09/03/12 FILE: _13-CFRST-Domestic Water Packaged Booster Pumps CFRST SPECMSTR-NEW BUILD 2012, Marriott International, Inc.

3 5. Control Valve: Adjustable, automatic, direct-acting, pressure regulator for each pump discharge. B. Motors: Comply with requirements in Section "Common Motor Requirements for Plumbing Equipment." C. Piping: ASME B31.9 for piping materials and installation. 1. NPS 4 (DN100) and Smaller: ASTM B88, Type L, drawn, copper, water tube with copper, solder-joint, pressure fittings and brazed joints. 2. NPS 5 (DN125) and Larger: ASTM A53, Schedule 40, galvanized-steel pipe with threaded, cast-iron fittings and threaded joints. 3. Header End Connections NPS 2 (DN50) and Smaller: Threaded. 4. Header End Connections NPS 2-1/2 (DN65) and Larger: Flanged. D. Piping Option: Piping, including valves and other components, may have grooved ends for grooved joints. E. Shutoff Valves, NPS 2 (DN50) and Smaller: MSS SP-80, Class 125, bronze, rising-stem gate valve or MSS SP-110, 600-psig minimum CWP, bronze ball valve with ends matching piping. F. Shutoff Valves, NPS 2-1/2 (DN65) and Larger: MSS SP-70, Class 125, bronze-trim, OS&Y, cast-iron gate valve with flanged ends or MSS SP-67, Type I for tight shutoff, 175-psig CWP, single-flanged, cast-iron butterfly valve. G. Check Valves, NPS 2 (DN50) and Smaller: MSS SP-80, Class 125, bronze, swing check valve. H. Check Valves, NPS 2-1/2 (DN65) and Larger: MSS SP-71, Class 125, bronze-trim, cast-iron, swing check valve. I. Dielectric Fittings: Assembly or fitting with insulating material isolating joined dissimilar metals, to prevent galvanic action and to stop corrosion. 1. NPS 2 (DN50) and Smaller: Factory-fabricated union assembly, for 250-psig minimum working pressure at 180 deg F. 2. NPS 2-1/2 (DN65) and Larger: Factory-fabricated, companion-flange assembly; for 150- or 300-psig minimum working pressure as required to suit system pressures. J. Sensors: Pressure switches. K. Control Panel: Automatic, with load control and protection functions. Comply with NEMA ICS 2 and UL Mounting and Wiring: Factory installed and connected as an integral part of unit. 2. Enclosure: NEMA ICS 6, Type Motor Controller: Full-voltage, combination-magnetic type with undervoltage release feature, motor-circuit-protector-type disconnect, and short-circuit protective device. a. Control Voltage: 120-V ac, using integral control power transformer, primary and secondary fuses. 4. Motor Overload Protection: Overload relay in each phase. 5. Starting Devices: Hand-off-automatic selector switch in cover of control panel, plus pilot device for automatic control. 6. Duplex, Automatic Alternating Starter: Switches lead pump to lag main pump and to twopump operation. PAGE 3

4 PAGE 4 REVISED: 09/03/12 7. Instrumentation: Unit suction and discharge pressure gages. 8. Alarm Signal Device: Sounds audible alarm when backup pumps are operating, alarm light, manual reset. 9. Instrumentation Panel: Unit suction and discharge pressure gages, failure logic and indicating light, auto reset after alarm condition clears. L. Finish: Manufacturer's standard paint applied to factory-assembled and -tested units before shipping. M. Manufacturer's Preparation for Shipping: Clean flanges and exposed machined metal surfaces and treat with anticorrosion compound after assembling and testing. Protect flanges, pipe openings, and nozzles. PART 3 EXECUTION 3.01 EXAMINATION A. Examine roughing-in of water distribution piping to verify actual locations of connections before packaged booster pump installation CONCRETE A. Install concrete bases of dimensions indicated for packaged booster pumps. Refer to Section "Cast-in-Place Concrete" and Section "Common Work Results for Plumbing." 3.03 INSTALLATION A. Install packaged booster pumps according to manufacturer's written instructions and with access for periodic maintenance, including removing motors, impellers, couplings, and accessories per engineer of record for one of the below: 1. Install units with total of 7.5 hp or less, with rubber-isolator mount or spring-isolator vibration isolators. 2. Install units with total of more than 7.5 hp, with concrete-filled, inertia-base vibration isolation bases and spring-isolator vibration isolators. B. Support connected piping so weight of water distribution piping is not supported by packaged booster pumps CONNECTIONS A. Piping installation requirements are specified in Section "Domestic Water Piping." Drawings indicate general arrangement of piping and specialties. The following are specific connection requirements: 1. Connect water distribution piping to pumps. Install suction and discharge pipe equal to or greater than size of unit suction and discharge headers. 2. Install flexible pipe connectors on piping connections to unit suction and discharge headers. Install flexible pipe connectors same size as piping. Refer to Section "Common Work Results for Plumbing " for flexible pipe connectors. 3. Install shutoff valves on piping connections to unit suction and discharge headers. Install valves same size as unit suction and discharge headers. Refer to Section "General Duty Valves for Plumbing Piping" for general-duty valves. B. Install electrical connections for power, controls, and devices. C. Electrical wiring and connections are specified in Division 26 Sections. FILE: _13-CFRST-Domestic Water Packaged Booster Pumps CFRST SPECMSTR-NEW BUILD 2012, Marriott International, Inc.

5 D. Ground equipment. 1. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B COMMISSIONING A. Check suction piping connections for tightness. B. Controls: Set for automatic starting, stopping, sequential, and alarm operations. C. Final Checks before Starting: Perform the following preventive maintenance operations: 1. Lubricate bearings. 2. Verify that each pump is free to rotate by hand and that pump for handling hot liquids is free to rotate with pump hot and cold. Do not operate pump if it is bound or drags, until cause of trouble is determined and corrected. 3. Verify that pump controls are correct for required application. D. Starting procedure for pumps is as follows: 1. Prime pumps by opening suction valves and closing drains, and prepare pumps for operation. 2. Open valves if pumps should not be operated against dead shutoff. 3. Start motors. 4. Open discharge valves slowly. 5. Check general mechanical operation of pumps and motors. 6. Close valves once there is sufficient flow through pumps to prevent overheating DEMONSTRATION A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain units as specified below: 1. Conduct training as specified in Division 01 Section. 2. Train Owner's maintenance personnel on procedures and schedules for starting and stopping, troubleshooting, servicing, and maintaining units. END OF SECTION PAGE 5