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NMFIRE NFPA20, Installation, Operation & Maintenance Manual, Page: 49 / 62

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NMFIRE NFPA20 Installation, Operation & Maintenance Manual Download Page 49

 

 

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4.3 Diesel Engine Fire Pump 

 

Warning 

1.

 

Do not start the pump until the pump is full of liquid and exhaust. If the pump runs dry, 
the bearing and shaft seal in the pump will be damaged. 

2.

 

The  coupling  can  be  moved  by  hand.  Pump  is  not  used  in  a  long  time  in  the  case, 
should move the coupling by hand, and check the status of the pump 

3.

 

Ensure that the discharged liquid does not hurt people, damage the motor or other 
components. 

 

Note 

Please check the electrical drawings of the diesel engine pump controller and other operating 

instructions for operate the diesel engine pump.

 

 

 

No. 

Remark 

1 

  Monitor panel 

2 

  Door lock 

3 

“Automatic/Stop/Manual”  Selection Knob 

4 

  Stop button 

5 

1#/2# Start button 

6 

  Voice Alarm 

7 

  Fault light 

 

Summary of Contents for NFPA20

Page 1: ......

Page 2: ...11 1 4 13 Shutdown and Disassembly 12 2 0 TRANSPORTATION AND HANDLING 12 2 1 Lifting 12 2 1 1 Containerized Fire Pump Group Lifting ISO 3874 1997 13 2 1 2 Electric Fire Pump Group Lifting 13 2 1 3 Di...

Page 3: ...roller 33 3 10 4 Diesel Engine Battery Cable Connection 35 4 0 INSTALLATION AND COMMISSIONING 36 4 1 Jockey Pump 36 4 1 1 Jockey Pump Start Requirements 37 4 1 2 Pressure Tank if install 39 4 2 Electr...

Page 4: ...to be followed when installing and maintaining the fire pump group Equipment must be properly operated and maintained to ensure safe and efficient operation Many accidents are caused by failure to fo...

Page 5: ...are in the correct position before starting the fire pump group Warning Poisonous 1 Waste oil has been identified by health agencies around the world as a cause of cancer or productive system poisonin...

Page 6: ...tain or Install Fire Pump Equipment 1 If proper procedures are not followed during the maintenance or installation of diesel engine pump group may result in death or serious injury or and equipment da...

Page 7: ...allowed to open or close and all auxiliary power supply is isolated to avoid accidental starting or remote starting of the fire pump group Danger Risk of Electric Shock 1 There is a risk of electric s...

Page 8: ...may obstruct and restrict air flow resulting in excessive temperature or fire 2 Keep the fire pump group and the surrounding area clean and barrier free 3 Remove debris from fire pump group and keep...

Page 9: ...intenance may lead to fire electric shock mechanical failure or asphyxiation caused by exhaust emissions thus result in serious personal injury or loss of life and property 2 Please carefully read and...

Page 10: ...tch not allowed to open or close and all auxiliary power supply is isolated to avoid accidental starting or remote starting of the fire pump group 4 Ensure the fasteners on the fire pump group are fir...

Page 11: ...suppliers may occasionally be allowed to perform work on live electrical equipment if they are qualified and authorized to perform troubleshooting or if a power outage to the equipment may cause grea...

Page 12: ...se must comply with local electrical codes and regulations Please refer to the wiring diagram attached to the fire pump group The fire pump control panel has a disconnect device No liability is assume...

Page 13: ...efore performing close maintenance The hydrogen gas released by a lead acid battery is extremely explosive and can be ignited by electric arc spark smoke etc 1 4 8 Overflow If an overflow occurs durin...

Page 14: ...as possible Warning Exhaust Gas 1 High temperature exhaust gas can cause burns which can lead to serious personal injury accidents Please wear personal protective equipment when operating the equipme...

Page 15: ...f fire pump group must be performed only by properly trained experienced personnel who are familiar with the transportation of these products Warning For enclosed fire pump group the hatch door must b...

Page 16: ...tainer lifting plates as defined in ISO 3874 1997 FIGURE A 2 1 1 Containerized Fire Pump Group Lifting 2 1 2 Electric Fire Pump Group Lifting 1 The lifting ring on the top of the electric motor can on...

Page 17: ...be used to lift the engine not the whole group equipment 2 Attention should be paid to the direction of tension when lifting the pump group If the direction of tension at both ends exceeds 90 degrees...

Page 18: ...ry flat and strong enough to support the weight of the equipment without sinking by time 3 1 3 Fire Pump Group Placement The fire pump group shall be placed on a level ground with adequate open space...

Page 19: ...n the anchor bolt fastener and the equipment base shall be good After tightening the nut the bolt must expose 1 5 5 pitch of the nut 2 The flat sizing block should be placed under the equipment base t...

Page 20: ...line of Fire Pump Note 1 Installation and fitting requirements for fire pump pipelines must be in accordance with NFPA 20 section 4 2 See SCF ESF VTP pump manual for more detailed usage requirements 3...

Page 21: ...cess system shall be requested to calculate 5 No airbag in suction pipe 6 Except the centrifugal fire pumps vertical shaft turbine type other fire pumps must be water supply at positive pressure I Imp...

Page 22: ...suction Concentric reducer causes the suction pipe to produce airbags FIGURE A 3 3 1 3 IV The supply pipe at the pump suction is not allowed to produce airbags see figure A 3 3 1 4 FIGURE A 3 3 1 4 Co...

Page 23: ...damage the pump FIGURE A 3 3 1 5 VI The pipe connected to the suction inlet of the fire pump must be a straight pipe the length of which should be 10 times the diameter of the suction pipe figure A 3...

Page 24: ...ction pipe of SCF and ESF series fire pumps The filters have a high risk of blockage which will seriously affect the fire water supply See figure A 3 3 1 7 FIGURE A 3 3 1 7 Suction pipe is not allowed...

Page 25: ...lve will cause turbulence damage to the pump The pump suction pipe should be installed with open stem Gate Valve OS Y Gate Valve See figure A 3 3 1 8 FIGURE A 3 3 1 8 Butterfly valves are not allowed...

Page 26: ...n inlet of the third diffuser to the liquid level at least should not be less than 10ft 3 2m 2 For every elevation increase of 1000ft 305m the immersion depth increases by 1ft 0 3m 3 Centrifugal fire...

Page 27: ...collection ditch 4 In order to avoid the pipe valve weight and pipe thermal stress generated by the force and torque exceeding the maximum allowable external load of the pump inlet and outlet the pipe...

Page 28: ...esel Engine Cooling Water Discharge 1 If the diesel engine is cooled by heat exchanger the water after cooling the diesel engine should be discharged directly to the drainage ditch 2 No valve shall be...

Page 29: ...allation Warning 1 Diesel exhaust pipe gravity must not be applied to the diesel engine body 2 As far as possible to reduce the elbow in the pipeline Exhaust resistance should not be Collector pipe Dr...

Page 30: ...to the following figure for the fixed exhaust pipe If there is no detailed installation instruction please read the engine manual 5 The exhaust outlet exposed to the outside should be equipped with r...

Page 31: ...hall be 304 stainless steel or manganese steel galvanized steel tube is prohibited and the size of connecting pipeline shall be 1 2 4 Do not install valves on fuel return lines If a valve is installed...

Page 32: ...2 The flow meter shall be connected to the pipe at least 5 times the diameter of the pipe in the front and 3 times the diameter of the pipe in the back FIGURE A 3 8 Flow Meter Installation Flow meter...

Page 33: ...ole on the disc of check valve Pay attention to the installation direction of these two check valves 4 Install two inspection test valves in the pressure sensing line see figure 1 and figure 2 5 The p...

Page 34: ...e sensing line disc drill 2 4mm through hole 2 Check valves are installed in the opposite direction of flow 3 Installation distance of two check valves 1 5m Test Valve Test Valve Check Valve Globe Val...

Page 35: ...wires and cables Non fire fighting equipment cannot extract power from the distribution system 3 The electrical connection shall be made in accordance with the electrical wiring diagram of the distri...

Page 36: ...al and the installation and operation shall be carried out by the corresponding professionals 3 10 3 Diesel Engine Fire Pump Controller Diesel Engine Fire Pump Controler No Remark 1 ACAC Power cable c...

Page 37: ...le connect the same terminal number the same terminal number are 1 2 3 4 5 6 8 9 10 11A 11B 12 310 311 312 2 Interconnecting cables must be protected against mechanical or rodent damage FIGURE A 3 10...

Page 38: ...connects the battery cathode to the metal shell of the diesel engine Note when connecting the battery cable the positive electrode must be connected to the battery contactor prior to connect the nega...

Page 39: ...t injure people or damage the motor or other components 3 When installing in hot water in case of the danger of being scalded 4 The manual of jockey pump controller and jockey pump should be carefully...

Page 40: ...valve of the suction pipe for water supply 2 Remove the plug from the top of the pump and slowly fill the pump with liquid Reinstall the plug and tighten it Note for high level water source tank remov...

Page 41: ...Chart Requirement 4 Start the pump and check the direction of rotation 5 Open the top of the pump exhaust valve Meanwhile open the outlet valve slightly 6 Continuous exhaust Also open the outlet valve...

Page 42: ...ank please use it as required Warning 1 The pre charging pressure of the pressure tank has been set before delivery and the pressure is 4bar If the user thinks that the pressure is not suitable charge...

Page 43: ...asically the following rules are followed if the pre charging pressure decreases the maximum working pressure will decrease accordingly The decrease value shall be calculated the maximum working press...

Page 44: ...tion 1 According to the electrical drawings and operating manual of the controller start the Interlock function do not start fire pump automatically when the control cabinet is powered on for the firs...

Page 45: ...r dial gauge 2 When the runout value measured in any direction with a dial indicator or the horizontal and vertical distance between two coupling flanges measured with a ruler does not exceed 0 13mm t...

Page 46: ...he base screw to the correct torque Back to Step 3 re check the alignment 8 Measure S2 check the S2 distance of the entire circumference of the coupling If the S2 value is within the allowable error r...

Page 47: ...2 2 Start Running 1 Close the valve at discharge side and open the valve at the suction side 2 From the pump end observe whether the rotation direction of the pump is correct 3 Open the gate valve at...

Page 48: ...45 4 After the pump reaches full speed immediately open the drainage valve slowly Check the discharge line for leakage 5 More information please refer to the pump manual...

Page 49: ...the case should move the coupling by hand and check the status of the pump 3 Ensure that the discharged liquid does not hurt people damage the motor or other components Note Please check the electric...

Page 50: ...f drive device shaft center and pump shaft center Top View 1 After the diesel engine is connected to the pump through the universal coupling the connection ends of the universal coupling must be kept...

Page 51: ...10 minutes observe the lubricating oil mechanical ruler if the lubricating oil is too low please add lubricating oil 2 The lubricating oil shall not fall below the lower limit indicating this degree...

Page 52: ...and the overflow of the high temperature liquid will cause injuries to people 2 You must wait for the temperature of the heat exchanger to drop to the point where it is not harmful to humans 3 The en...

Page 53: ...capacity Below this level the engine will not be able to meet the continuous running time requirements 2 The fuel tank fuel supply valve must be locked in the open position If the valve is closed the...

Page 54: ...sembly of battery wire the negative pole must be removed first then the positive pole No Remark 1 12V battery 2 Connect to the 2 starter cable 2 battery positive electrode connection 3 Cable to the en...

Page 55: ...ogic Example 1 normally the jockey pump pressure is 9bar 10bar to maintain the pipe network the starting low pressure of the motor fire pump and the diesel fire pump is set at 8 5bar the low pressure...

Page 56: ...and fails a Fuse automatic control circuit broken Replace fuse b Motor starter contact switch overload failure Replace the contact switch of motor starter c Loose or defective connection wire Tighten...

Page 57: ...ction pipe b Suction pipe pump have been blocked Repair bottom valve or check valve c Suction pipe leaks Repair suction pipe d Suction pipe or pump enter into air Check the pump suction condition e Mo...

Page 58: ...l oil filter is too dirty Replace the diesel filter valve or clean the diesel filter k Low position of fuel tank Raise the fuel tank position l Over speed do not reset Reset the over speed m The rack...

Page 59: ...inlet and exhaust pipe connections d Air vent clog Check if the exhaust pipe is too thin too long or too curved Clean exhaust muffler cylinder head exhaust duct e External reasons If the temperature o...

Page 60: ...r pump b There is gas in the circulating channel of diesel internal cooling water Let off the gas in the circulating channel c Diesel internal cooling water circulation channel fouling Clean circulati...

Page 61: ...il is too low d Diesel oil water in the oil viscosity is insufficient Replace engine oil e The oil is of the wrong grade and the viscosity is too low Change the appropriate grade of oil f Engine tempe...

Page 62: ......

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