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NMFIRE NFPA20 Installation, Operation & Maintenance Manual

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Summary of Contents for NMFIRE NFPA20

  • Page 2: Table Of Contents

    Contents 1.0 GENERAL ............................1 1.1 Safety Instruction ............................1 1.2 Safety Symbols ............................... 1 1.3 Safety Precaution ............................2 1.4 Safety Instruction for Operator/User ...................... 6 1.4.1 Moving parts may cause serious injury..................7 1.4.2 Electric Shocks and Arc Flashes may cause serious injury ............7 1.4.3 Shut Down the Faulty Fire Pump Group..................
  • Page 3 3.9 Fire Pump Controller Pressure Sensing Line ..................30 3.10 Fire Pump Controller Wire and Cable Connection ................ 32 3.10.1 Jockey Pump Controller ........................32 3.10.2 Electric Motor Fire Pump Controller ................... 33 3.10.3 Diesel Engine Fire Pump Controller .................... 33 3.10.4 Diesel Engine Battery Cable Connection ..................

  • Page 4: General

    1.0 GENERAL This manual is included in the documentation package attached to the specific fire pump set provided by CNP NM FIRE. If this manual is provided to you separately, please contact with CNP NM FIRE or your supplier. Note The operator is duty-bound to read and understand all warnings and precautions in the documentation regarding the operation and routine maintenance of the fire pump equipment.

  • Page 5: Safety Precaution

    1.3 Safety Precaution Warning  Pressurized Coolant 1. High temperature coolant may cause serious burns. 2. Do not open the radiator or heat-exchanger pressure cover while the diesel engine is under running/ high temperature. 3. Cool down the engine prior to removing the coolant pressure cap. 4.
  • Page 6 Warning  Fire or Explosion 1. Flammable liquid may cause fire or explosion, result in death or serious injury. 2. Do not store fuel oil, cleanser, engine oil etc.,near the fire pump equipment. Warning  Noise 1. Noise from the diesel engine may cause hearing loss. 2.
  • Page 7 Warning  Accidental or Remote Starting 1. During operation, accidental or remote start the diesel engine/electric motor fire pump group will result in death or serious injury. 2. Disconnect the starting battery cable with an insulating wrench (first disconnect the negative pole [－]) and isolate all auxiliary power sources to avoid accidental starting or remote starting of the fire pump equipment.
  • Page 8 Caution  Risk of Fire 1. The accumulation of combustible materials under the fire pump group may cause fire accident. 2. Ensure that the fire pump group is fixed in a way that combustible material cannot accumulate under the equipment. Caution ...

  • Page 9: Safety Instruction For Operator/User

    Note  Avoid Stepping on 1. Stepping on a fire pump group can cause parts to bend or break, resulting in an electrical short circuit or fuel, coolant or exhaust leakage. 2. Do not step on the fire pump group when entering or leaving the fire pump room. 1.4 Safety Instruction for Operator/User Read the manual and familiarize with the contents and equipment before operating the fire pump group.

  • Page 10: Moving Parts May Cause Serious Injury

    corresponding equipment manual. 2. Electric motor fire pump group including: electric motor, pump, electric motor fire pump controller, please refer to the manual of electric motor, pump, electric motor fire pump controller.The specific equipment instructions contained in this manual may little differ from the corresponding equipment manual.

  • Page 11: Shut Down The Faulty Fire Pump Group

    electrical system without power: 1. Use the appropriate PPE.Do not wear jewelry and be sure to remove all conductive items from your pockets, as these items may fall into the equipment which cause short-circuit, resulting in an electric shock or burns.For PPE standards, see standard NFPA 70E. 2.

  • Page 12: Ac Power Supply And Isolation

    Fire pump equipment must be shut down before any maintenance operations are performed.Even if the fire pump group is stopped by the Off [Off] switch on the knob switch, the fire pump group cannot be considered safe and operated unless the engine is stopped correctly in accordance with the instructions in the equipment manual.

  • Page 13: Inflammable Of Fuel Oil And Aerosol

    2. Do not operate on energized equipment. Unauthorized persons are not allowed to go near electrified equipment. Due to the nature of the low-voltage electrical equipment, even if the equipment has been disconnected from the power supply, there will still be a residual induced voltage.

  • Page 14: Hazard Of Emission

    engine fire pump group are fully responsible for the safe operation of the diesel engine fire pump group. 1.4.11 Hazard of Emission 1. Provide appropriate exhaust systems to remove emissions from closed or sheltered areas or areas where people may congregate. Inspect the exhaust system visually and audibly daily according to the maintenance schedule for leaks.

  • Page 15: Shutdown And Disassembly

    these heat shields are contaminated with fuel or oil, they must be cleaned before running the diesel group. To minimize the fire risk, below steps should be followed: 1. Make sure the engine is fully cooled before adding or discharging oil to drain the fuel filter.

  • Page 16: Containerized Fire Pump Group Lifting-Iso 3874:1997

    2. The load value referenced applies to the sling at the specified angle, but it is possible to use the sling between the specified Angle and the vertical line. 2.1.1 Containerized Fire Pump Group Lifting-ISO 3874:1997 Lifting operations shall be performed on top or bottom of containers using ISO container lifting plates as defined in ISO 3874:1997.

  • Page 17: Diesel Engine Fire Pump Group Lifting

    FIGURE A.2.1.2（B）Centrifugal Fire Pumps Split-Case Type Group Lifting 2.1.3 Diesel Engine Fire Pump Group Lifting 1. The lifting ring on the top of the diesel engine can only 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, it is not allowed.

  • Page 18: On-Site Installation

    Warning  The fire pump room must have the following facilities: 1. Ventilation facilities; 2. Flood prevention and drainage facilities; 3. Lighting facilities; 4. Heating facilities must be installed in the low-temperature area of fire pump to ensure that the pump temperature is not lower than 4℃; 5.

  • Page 19: Base Foundation

    3.2.1 Base Foundation The steel bar, concrete mark and mix ratio in the forming process of the base foundation shall be constructed strictly according to the design drawing. The foundation vibration reduction device shall be installed according to the requirements of the drawing (if necessary).

  • Page 20: Concreting

    Anchor Bolt Hole Foundation Sizing Block Base FIGURE A.3.2.2（B）Anchor Bolt and Sizing Block 3.2.3 Concreting Loosen the adjusting bolt and remove the sizing block before concreting into the base. The base is mounted on a steel plate. After re-checking alignment, concrete the anchor bolts. Be sure to tighten the anchor bolts after the concrete has solidified.
  • Page 21 pipe misalignment error, pipe expansion, ground subsidence; 4. The suction pipe shall meet the net positive suction head (NPSH) required by the pump, and the pipe shall be as short as possible with little turning. When the pipe length exceeds the distance between the equipment and the pump, the process system shall be requested to calculate.
  • Page 22 III. Concentric reducer "figure A.3.3.1.3" is not allowed to be used at the pump suction. Concentric reducer causes the suction pipe to produce airbags; Airbag Suction Pipeline Concentric reducing pipe 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”;...
  • Page 23 V. 90°elbow is not allowed to be used directly at the outside of pump suction port, see “figure A.3.3.1.5”, in this case, cavitation will occur during the operation of the fire pump to damage the pump; Suction pipe Discharge pipe FIGURE A.3.3.1.5 VI.
  • Page 24 Warning It is strictly prohibited to install filters in the suction 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” Suction pipe is not allowed to install Y filters Installation error of...
  • Page 25 Warning Do not install butterfly valve in the suction pipe of SCF and ESF series fire pump. Butterfly valve 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” Butterfly valves are not Butterfly valves cause allowed to be installed in...

  • Page 26: Pump Suction Pipeline For Vtp

    3.3.2 Pump Suction Pipeline for VTP 1. For centrifugal fire pumps (vertical shaft,turbine type), the suction pipe must have sufficient immersion depth, and the distance from the suction inlet of the third diffuser to the liquid level at least should not be less than 10ft(3.2m). 2.

  • Page 27: Discharge Pipe Of Fire Pump Line

    3.4 Discharge Pipe of Fire Pump Line 3.4.1 Discharge pipe of the motor fire pump 1. The discharge pipe size of the motor fire pump must meet the output requirements at 150% rated flow; 2. The circulation safety valve must be installed between the discharge of the motor fire pump and the check valve, to prevent the fire pump from burning when it runs at 0% rated flow for a long time.

  • Page 28: Diesel Engine Cooling Water Discharge

    3. No valves shall be installed in the before and after connecting piping of the safety pressure relief valve; 4. Safety pressure relief valve must be equipped with waste cone, waste cone on both sides of the window should be parallel ground installation; 5.

  • Page 29: Diesel Exhaust System Fixed Installation

    Cooling water Heat discharge pipe Exchanger Collector pipe Drainage ditch FIGURE A.3.5（A）Diesel Engine Cooling Water Discharge The cooling water drainage pipe is connected to the drainage ditch by the collector pipe FIGURE A.3.5（B）Diesel Engine Cooling Water Discharge 3.6 Diesel Exhaust System Fixed Installation Warning 1.
  • Page 30 greater than the diesel engine exhaust back pressure, exhaust resistance is easy to cause engine failure; 3. The exhaust pipe should be wrapped with heat-insulating material to avoid the influence of excessively high operating temperature on the performance of the engine; 4.

  • Page 31: Fuel Tank Installation

    3.7 Fuel Tank Installation 1. The installation height of fuel tank is determined by the height H of “engine fuel pump” . The “fuel output connector” of fuel tank should be basically the same as the height of diesel engine fuel pump; 2.

  • Page 32: Flow Meter Installation

    3.8 Flow Meter Installation 1. The installation site of the flow meter should not have a large vibration; 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. to fire water tank Valve...

  • Page 33: Fire Pump Controller Pressure Sensing Line

    3.9 Fire Pump Controller Pressure Sensing Line 1. For all fire pumps, including jockey pumps, each controller shall have its own separate pressure sensing line; 2. Pressure sensing pipe must be made of hard brass or not less than 300 stainless steel, pipe diameter is 1/2"...
  • Page 34 FM/UL fire pump controller 1. Check valve on pressure 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. Globe Valve Check Valve Test Valve From fire water tank...

  • Page 35: Fire Pump Controller Wire And Cable Connection

    3.10 Fire Pump Controller Wire and Cable Connection Warning 1. The installation of the controller must be carried out by the electrical personnel who have received professional training and obtained relevant qualification certificates; Non-professional operation will have life risk or damage equipment; 2.

  • Page 36: Electric Motor Fire Pump Controller

    3.10.2 Electric Motor Fire Pump Controller Electric Motor Fire Pump Controller: Remark Power cable connection terminal Connect to fire pump motor terminal Note: For different brands or models of controller, wire and cable connection location or connection requirements are not the same, before the installation and use, please carefully read the corresponding manual, and the installation and operation shall be carried out by the corresponding professionals.
  • Page 37 3.10.3.1 FM/UL Diesel Engine Fire Pump Controller and FM/UL Diesel Engine Instrumentation Cable Connection 1. FM/UL diesel engine fire pump controller and FM/UL diesel engine instrumentation connected terminal number is exactly the same, through the cable 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.

  • Page 38: Diesel Engine Battery Cable Connection

    3.10.4 Diesel Engine Battery Cable Connection Battery cables must be connected in the following order: 1. The control mode of fire pump control panel must be“OFF (stop)”mode; 2. All switches inside the control panel must be in the“OFF (stop)”state; 3. For the 24VDC system, the cable is used to connect the two of 12VDC batteries in series;...

  • Page 39: Installation And Commissioning

    4.0 INSTALLATION AND COMMISSIONING 4.1 Jockey 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 end seal of the pump will be damaged. 2.

  • Page 40: Jockey Pump Start Requirements

    4.1.1 Jockey Pump Start Requirements Explanatory Chart Requirement 1. Check and confirm that there is no foreign body in the suction pipe and the water supply of the suction pipe is normal. Close the outlet valve of the pump and open the valve of the suction pipe water...
  • Page 41 Explanatory Chart Requirement 4. Start the pump and check the direction of rotation. 5. Open the top of the pump exhaust valve. Meanwhile, open outlet valve slightly. 6. Continuous exhaust. Also open the outlet valve a little wider. －38－...

  • Page 42: Pressure Tank (If Install)

    Explanatory Chart Requirement 7. When there is a steady outflow of liquid from the exhaust valve, close the exhaust valve. At this time, open the outlet valve fully. 8. For more details, please refer vertical multi-stage pump manual. 4.1.2 Pressure Tank (if install) Note: if there is no pressure tank in the fire pump package system, please ignore this part.
  • Page 43 pressure drops, the tank should be replenished in time to avoid its normal use； 5. The maximum working pressure of the pressure tank shall be consistent with the pre-filling pressure indicated on the tank body, If the pre-charging pressure is changed due to the need of use, the maximum working pressure will change accordingly.

  • Page 44: Electric Motor Fire Pump

    4.2 Electric Motor Fire Pump Note Please check the electrical drawings of the electric motor pump controller and other operating instructions for operate the electric motor pump. Remark Start button Stop button Power switch Emergency start device Monitor screen Note 1: since the FM/UL electric fire pump controller without "manual/stop/automatic" selector switch, please follow the following steps for the first power-on operation: 1.

  • Page 45: Install Check Before Starting

    4.2.1 Install check before starting Warning 1. In the factory, the coaxiality of the pump and motor has been precisely adjusted, but the coaxiality of the preset is usually changed during transportation. Check the degree of horizontal, vertical, and angular coaxiality of the coupling with a ruler and a gauge or dial gauge.
  • Page 46 4. Check the alignment. 5. Adjust the position of the motor,Loosen base screw holding the motor. 6. Fill the gap sheet with suitable thickness. 7. Again tighten base screw to the correct torque. Back to Step 3, re-check the alignment. 8.

  • Page 47: Start Running

    the allowable clearance is 0~1mm. (the specific installation requirements of the manufacturer shall prevail) 4.2.2 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.
  • Page 48 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. －45－...

  • Page 49: Diesel Engine Fire Pump

    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.

  • Page 50: Install Check Before Starting

    4.3.1 Install check before starting Warning In the factory, the coaxially of the pump and engine has been precisely adjusted, but the coaxially of the preset is usually changed during transportation. Check the degree of horizontal, vertical, and angular coaxially of the coupling with a ruler and a gauge or dial gauge.
  • Page 51 Add and Inspect Engine Oil: Remark Engine oil inlet Lubricating oil mechanical ruler Lubricating oil lower limit indicating scale Lubricating oil ceiling indicating scale Warning 1. The engine must stop run and then wait 10 minutes, observe the lubricating oil mechanical ruler, if the lubricating oil is too low, please add lubricating oil.
  • Page 52 Add and Inspect Engine Coolant: Remark Heat exchanger Warning 1. When the engine is running, it is forbidden to open the top cover of the heat exchanger. There is a high pressure in the high-temperature heat exchanger, and the overflow of the high-temperature liquid will cause injuries to people. 2.
  • Page 53 Add and Inspect Fuel Oil: Remark Fuel supply valve Fuel filler Fuel level indicating instrument Low fuel level alarm switch Fuel tank vent tube Fuel return pipe Fuel and sewage discharge Warning 1. The fuel level of the fuel tank must not be lower than 65% of the total capacity. Below this level, the engine will not be able to meet the continuous running time requirements.
  • Page 54 Power connection for engine battery： Warning 1. Electrical wiring shall be performed by qualified electrical technicians. 2. Connection of battery wire: connect "positive pole" first, then connect "negative pole". 3. Disassembly of battery wire: the "negative pole" must be removed first, then the "positive pole".

  • Page 55: Start Running

    4.3.2 Start Running 1. Close the valve at discharge side, and open the valve at the suction side. 2. After the diesel fire pump starts, slowly adjust the engine throttle to improve the engine speed, and slowly open the drainage valve to check whether the discharge pipeline leaks. If no leakage, adjust the engine speed to the pump rated flow and head.

  • Page 56: Trouble Shooting

    6.0 TROUBLE SHOOTING 6.1 Electric motor pump Trouble Possible causes Remedy a) No power connection. Connect power supply. b) Blown fuse. Replace fuse. c) Motor starter overload Repair motor protector. protection has failed. d) Thermal protector Repair thermal protector. protection failed. 1.
  • Page 57 Trouble Possible causes Remedy e) The main contactor of the 4. The motor starter starts motor starter is not Replace the contactor or normally, but the pump does connected or the electromagnetic coil. not run electromagnetic coil is discontinuous. a) Pump suction pressure is Check the pump suction too low (NPSH).

  • Page 58: Diesel Engine

    6.2 Diesel engine Trouble Possible causes Remedy Charge or replace the battery a) The battery is running low. with a new one. b) Starting motor damaged. Replace starting motor. c) Start switch relay damaged. Replace start switch relay. d) Poor contact of wire Tighten or replace the joint and connector.
  • Page 59 Trouble Possible causes Remedy w) The water is too cold to Add pre-heater to raise the freeze in the pump. temperature of diesel engine. x) Engine oil is too low in Replace with a matching engine temperature and too viscous. oil.
  • Page 60 Trouble Possible causes Remedy Repair or replace worn governor d) Governor moving parts 3. The diesel engine moving parts, make its runs unsteadily stuck or wear seriously. movement smooth. a) The fuel tank has run out. Add fuel oil. b) There's water and air in the Exhaust the system of water and fuel.
  • Page 61 Trouble Possible causes Remedy d) Diesel oil, water in the oil, Replace engine oil. viscosity is insufficient. e) The oil is of the wrong 6. The pressure of Change the appropriate grade grade and the viscosity is too engine oil is too low of oil.

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