SECTION FIRE PUMP AND CONTROLS

Transcription

1 SECTION FIRE PUMP AND CONTROLS PART 1 GENERAL 1.01 SUMMARY A. Section Includes: Fire pump, jockey pump, and controls including necessary accessories as shown in Construction Documents, specified in this section, and as required by NFPA 20. B. Related Sections: Fire Protection Automatic Sprinkler System Standpipe and Hose System REFERENCES A. American Society for Testing and Materials (ASTM). B. American National Standards Institute (ANSI). C. Factory Mutual (FM). D. National Electrical Code (NEC). E. National Electrical Manufacturers Association (NEMA). F. National Fire Protection Association (NFPA). G. Underwriters Laboratories (UL) SUBMITTALS A. Submit properly identified manufacturer's literature before starting work. B. Shop Drawings: 1. Fire pump and accessories. 2. Control panels and devices. 3. Jockey Pump and accessories. Project No. SPECIFICATION GUIDELINES

2 1.04 QUALITY ASSURANCE A. Fire protection equipment and devices shall be UL listed or FM approved for service intended. B. Install according to NFPA 20, NEC requirements, and local code regulations. PART 2 PRODUCTS 2.01 EQUIPMENT A. Fire Pump: 1. UL listed and FM approved automatic centrifugal pump complete with motor, controller and accessories, capable of delivering not less than 150 percent of rated capacity at not less than 65 percent of rated pressure, with characteristics as shown in Construction Documents. 2. Manufacturers: a. Aurora. b. Patterson. c. Peerless. 3. Pump: Centrifugal, horizontal split case, single stage casing with renewable bronze, case wearing rings and impeller wearing rings, steel shaft with renewable bronze or stainless steel sleeves, grease lubricated ball bearings, deep type stuffing boxes with bronze glands and external water seal, and lubrication fittings. Minimum suction pressure 20 psig. 4. Provide required UL accessories including: a. Discharge manifold. b. Automatic air release valve. c. Suction and discharge pressure gages. d. Suction and discharge tapered reducers. e. Circulation relief valve. 5. Motor: Project No. SPECIFICATION GUIDELINES

3 a. Motors shall be listed for fire pump service. b. Horizontal open drip-proof grease lubricated, ball bearing squirrel cage, and induction type with nonoverloading characteristics at any point of the curve. c. Pump and motor shall be mounted on a cast iron drip rim base plate. Motor mounting bracket on machined pump shall be completely aligned. 6. Transfer Switch Fire Pump Controller: a. Design and build according to the latest edition of NFPA 20. b. The fire pump controller and built-in automatic transfer switch shall have a withstand current rating of at least 100,000 RMS symmetrical amps on the normal power supply. c. The power transfer switch and fire pump controller shall be factory assembled, wired, and tested. d. Controller and transfer switch shall be in a NEMA Type 12 enclosure with floor mounting legs. The power transfer switch shall include a disconnect/isolating switch capable of interrupting the motor locked rotor current. e. Controller shall be of the primary resistor or reactor reduced voltage type with a combined automatic/manual start and manual/timed automatic stop. 1) Use reactor type when facility has a generator set. f. Controller shall have the following required accessories: 1) Pressure switch for automatic starting. 2) "Power-on" pilot light indicating breaker closed and power available. 3) Pressure recorder, not AC power dependent, with 7-day charts. 4) Power monitor for phase failure and phase reversal. 5) START and STOP push buttons for manual operation. 6) Timing relay for reduced voltage starting. Project No. SPECIFICATION GUIDELINES

4 7) Relays with normally open (N.O.) and normally closed (N.C.) dry contacts for pump running, power failure, and phase reversal. 8) Failed to start relay with N.O. and N.C. dry contacts. 9) Automatic stop timer set at 10 minutes, with provision to change to manual shutdown only. g. Transfer switch operation and accessories shall be according to NFPA 20. h. Provide extra N.O. dry contact for pilot light indicating pump running at central control station. i. Wiring of controller, transfer switch, and alarms shall be under Division 16. j. Transfer switch pump controllers shall be as manufactured by Firetrol, Joslyn-Clark, and Master Control. B. Jockey Pump: Peerless Pump Co. or accepted equivalent, Burks Series CS, close coupled, turbine pump with bronze impeller, and mechanical seal. Characteristics as shown in Construction Documents. C. Jockey Pump Controller: Main disconnect, fuse block with power fuses across the line starter, H-O-A selector switch, minimum run period timer, pressure switch in NEMA 12 cabinet, and UL listed. D. Test header according to NFPA 20. PART 3 EXECUTION 3.01 INSTALLATION A. Provide pump concrete foundations of size not less than the weight of the pumps or as shown in Construction Documents. B. Check pump and motor on foundation for misalignment FIELD QUALITY CONTROL A. Factory test each pump for performance data and compliance with specifications. Project No. SPECIFICATION GUIDELINES

5 1. Hydrostatically test pump for not less than 5 minutes. 2. Test Pressure: 150 percent of pump working pressure but not less than 250 psi. 3. Pump casings shall be tight with joints leakproof. B. Furnish NFPA 20 pump acceptance test data. Test data form shall be as shown in NFPA 20, figure A (f). Tests shall be conducted according to the requirements of NFPA 20. END OF SECTION Project No. SPECIFICATION GUIDELINES