Method Statement For Installation Of Firefighting Pump Set Material Handling & Storage:
On receipt of Fire Hose Cabinets, Hose Racks, Hose Reels & Extinguishers at site necessary precautions shall be taken for unloading, shifting and storage, as
follows:-Upon arrival at site, the Fire Fighting pumps shall be off-loaded carefully at site using necessary manpower and required equipment to ensure that no damage is caused.
The Fire Fighting pumps shall be preferably shifted directly to the pump room immediately upon arrival at site.
On the floor, Fire Fighting pumps will be stored in a clean, dry place & adequate covering by tarpaulin sheets will be done to protect the equipment from deposition of construction dust till it is finally shifted to its foundation.
All the received Fire Fighting pumps will be checked to ensure that the pumps comply with the approved material submittals in terms of their make, model, type, capacity, etc.,
Any discrepancy or damages etc., will be notified and reported for further action.
Material found not suitable for site use will be removed immediately from site & the same same will be replaced by correct item.
Installation Of Firefighting Pumps Procedure
Prior to start of installation it shall be ensured that the shop drawings including coordination drawings of the respective area are approved.
It shall be ensured that the Fire Fighting Pumps are as per the approved material submittal and have been inspected & approved.
Ensure that the pump foundation is according to manufacturer’s recommendations and NFPA standards.
After inspecting the work area / foundation and esuring that it is totally ready for installation, the required pumps shall be moved to the place of installation.
Proper marking shall be done on the foundation for drilling & fixing the required fasteners to fix the pumps in position.
The pumps shall then be placed on the foundation & shall be fitted in position directly on the foundation.
It shall be ensured that the fastners are tight enough to hold the pump in position during operation.
After installation and approval of the pumps the Fire Fighting piping system shall be connected to the inlet & outlet of the pumps.
It shall be ensured that the piping is properly supported using hanger supports. Flexible connectors shall be installed at pump inlet & outlet to permit movement due to vibrations, expansion & contraction.
The pump set shall be mounted on a common base plate of steel and directly connected to motor through a flexible coupling. The base shall conform to NFPA standards.
It shall be ensured that the pumps & motors are properly installed with flexible connectors without pipe strain transmitted to the pump casing.
A flow meter shall be installed to measure and indicate flow through the piping system. The meter shall be UL listed / FM approved & the location shall be shown on the shop drawings.
The pump control panel shall be installed as per approved shop drawings & manufacturer’s recommendations.
The required power & control wiring shall be carried out as per specification & manufacturer’s recommendations.
While installation of cable trays & trunking it shall be ensured that the routing does not hinder the access to various parts of the pump.
The alarm control valve drain for the sprinkler system shall be connected to the sump pit/sewage, pit further the wet riser drain shall also be connected to the sump pit/swage pit.
Testing & Commissioning Method
Statement For Fire Fighting Pumps
Below is a complete step wise Testing & Commissioning Method Statement For Fire Fighting Pumps. The purpose of this procedure is to define the step by step method to implement the correct practices for the testing, precommissioning & commissioning of “Fire Fighting Pumps” through the guidelines contained herein so as to ensure that the job execution complies with the project requirements and serves the intended function to satisfactory level.
This method applies for startup of pumps only not for a complete firefighting system which requires a separate detailed procedure for commissioning.
TOOLS / EQUIPMENTS Portable Hand tools Step Ladder
Measuring instruments (with valid calibration certificate) TESTING & COMMISSIONINGF PROCEDURE
Precommissioning Procedure for Fire Fighting Pumps
1. Ensure that the pump installation is complete and approved.
2. The civil defence approval shall be obtained prior to the precommisioning & commissioning of the Fire Fighting System.
3. Ensure that no damage occurs between mechanical completion & precommissioning.
4. Repair all damages to the equipment paint finish.
5. Ensure that the pumps are identified location wise and service wise.
6. Check again the alignment of pump and driver shaft and comply with manufacturer instructions. check shaft sleeves are fitted properly to protect the shaft against wear, erosion & corrosion.
7. Note the details of each motor such as make, model number, frame size, kW rating and RPM.
8. Check that the Fire Fighting piping network is complete with proper valves, drains, vents, strainers, pressure switches & instruments in place.
9. Ensure that the Fire Fighting network is hydraulically pressure tested and approved.
10.Ensure the pumps bearings are lubricated/greased as per manufacturer recommendation.
11.Ensure the pump shafts are rotated by hand freely.
12.Ensure that electrical power connections and earthing is proper.
13.Ensure that the field wiring is pre-tested for continuity and insulation resistance.
14.Ensure that all the relevant valves are in open position. Pump discharge valve should be in closed position.
15.Check for free rotation of motor shaft by hand.
16.Check that the coupling guards are installed & all safety devices are operational.
17.Check identification and labeling for equipment.
Commissioning Procedure for Fire Fighting Pumps
1. Ensure that all the pre-commissioning checks are carried out successfully. 2. Ensure the discharge valve is closed.
3. Ensure the pump & the pump suction are completely filled with water prior to starting the pump.
5. Slowly open the discharge valve of the low zone header & record the discharge head for 50% of the design flow. The discharge valve shall be slowly opened & the flow through the piping shall be checked in the flow meter for every rotation of the valve spindle until the flow is 50% of the design.
6. Similarly discharge head shall be measured for 100% & 150% of design flow.
7. Observe leakage from stuffing boxes and adjust the flow for lubrication of packing.
8. Repeat steps 2 & 3 for the high zone & record the values. 9. Check pumps for overheating by physically touching by hand. 10.Check for any vibration/noise.
11.Check current, voltage & rpm of the motor & record the values.
12.Calculate the actual pump performance and plot actual performance curve for both low zone & high zone.
13.Check the interface with BMS & fire alarm system.
14.The wiring diagram of pump controls & schematic piping shall be displayed near or inside the control panel.
Testing & Commissioning Procedure For Jockey Pumps – Fire Fighting System Below is the procedure for Testing & Commissioning of Jockey Pumps for the Fire Fighting System.
Pre Commissioning Procedure for Fire Fighting Jockey Pumps
1. Ensure that the pump installation is complete and mechanical completion is approved. 2. Ensure that no damage occurs between mechanical completion & pre commissioning.
3. Repair all damages to the equipment paint finish.
4. Ensure that the pumps are identified location wise and service wise. 5. Ensure that the system is cleaned internally & externally.
6. Check again the alignment of pump and driver shaft and comply with manufacturer instructions.
7. Note the details of each motor such as make, model number, frame size, kW rating and RPM.
8. Check that the Fire Fighting piping network is complete with proper valves, drains, vents, strainers, pressure switches & instruments in place.
9. Ensure that the Fire Fighting network is hydraulically pressure tested and approved. 10. Ensure the pumps bearings are lubricated/greased as per
manufacturer recommendation.
11. Ensure the pump shafts are rotated by hand freely.
12. Ensure that electrical power connections with control panel, pressure switch & earthing is proper.
13. Ensure that the field wiring is pre-tested for continuity and insulation resistance. 14. Ensure that all the relevant valves are in open position.
15. Check the rotation of motor shaft by hand. 16. Check identification and labeling for equipment.
Commissioning Procedure for Jockey Pumps
1. Ensure that all the pre-commissioning checks are carried out successfully. 2. Open the suction valve & allow water to flow into the pump.
3. Start the pump and record the discharge pressure.
4. Observe leakage from stuffing boxes and adjust the flow for lubrication of packing.
5. Check pumps for overheating physically by hand. 6. Check for any undue vibration/noise.
7. Check current, voltage & rpm of the motor & record the values. 8. Plot the pump actual performance curve.
METHOD STATEMENT FOR INSTALLATION OF FIRE HOSE CABINETS, HOSE RACK, HOSE REEL & EXTINGUISHERS
METHOD STATEMENT FOR INSTALLATION OF FIRE HOSE CABINETS, HOSE RACK, HOSE REEL & EXTINGUISHERS.
Following tools shall be required for the installation of hose reel cabinets/racks and extinguishers.
Portable Hand tools Portable Drill machines Portable Grinding machine Gas Cutting set
Welding machine Pipe grooving machine Pipe threading machine
HANDLING & STORAGE OF MATERIALS
On receipt of Fire Hose Cabinets, Hose Racks, Hose Reels & Extinguishers at site necessary precautions shall be taken for unloading, shifting and storage, as
follows:-The Fire Hose Cabinets, Hose Racks, Reels & Extinguishers shall be carefully off-loaded by deploying necessary / adequate manpower in such a way that no damage is caused.
The Fire Hose Cabinets, Hose Racks, Reels & Extinguishers shall be inspected, handled & stored properly upon receipt at site.
All materials shall be stored in a place free of water, dust & adequately covered to avoid any kind of damages.
The Materials shall be transported to work place using adequate manpower.
Any discrepancies, damage etc., found will be notified and reported to QA/QC engineer & Engineer in charge – Plumbing for further action.
Materials found not suitable for site use will be removed from site immediately & replaced by appropriate material.
INSTALLATION PROCEDURES FOR HOSE REEL CABINETS
Prior to start of installation it shall be ensured that the shop drawings including coordination drawings of the respective area are approved. The locations of the fire cabinets shall also be shown on the Architectural drawings.
It shall be ensured that the area is released to proceed with MEP installations.
It shall be ensured that the Fire Hose Cabinets, Hose Reels & extinguishers are as per the approved material submittal & have been inspected & approved.
INSTALLATION OF SURFACE MOUNTED FIRE HOSE CABINETS
Prior to start of installation it shall be ensured that the wall has been painted & released to proceed with the installation.
The location of the fire hose cabinet shall be marked as per the approved shop drawings. The height of installation of the cabinets shall be in line with the civil defense approved drawing.
The Fire hose cabinets shall be installed in place using four 10mm approved anchors & bolts, ensuring the door will open 180 deg without blocking any valves.
INSTALLATION OF HOSE RACK FOR SURFACE MOUNTED CABINETS
The Fire Hose rack shall be fixed inside the cabinet through a landing valve supplied with the hose rack.
The piping connection to the hose rack landing valve shall be as per civil defense approved approved shop drawings, pipe penetrations to be properly sealed.
Labelling & identification shall be provided to the equipment in English & Arabic. INSTALLATION OF HOSE REEL FOR SURFACE MOUNTED CABINETS
The Hose reel shall be installed inside the fire cabinet utilizing the existing brackets in the cabinet. Hose reel shall open fully & easily in all directions by just pulling the hose nozzle without even touching the reel.
INSTALLATION OF FIRE EXTINGUISHERS FOR SURFACE MOUNTED CABINETS Two approved fire extinguishers shall be placed inside the fire hose cabinets as per approved shop drawings & material submittal.
INSTALLATION OF RECESSED FIRE HOSE CABINETS
Prior to start of installation it shall be ensured that the wall around the fire cabinet has been painted & released to proceed with the installation.
Ensure that the block work opening for the fire hose cabinet is as per the approved shop drawings prior to start of installation.
The height & location of installation of the cabinets shall be in line with the civil defence approved drawings.
The fire cabinet shall be then placed in the opening with the outer flange flush with the wall and shall be fitted to the block wall using 10mm approved fasteners (8-10nos as per the size of the cabinet). The door of the cabinet shall open 180 degrees to civil defense approval. Labeling & identification shall be provided to the equipment in English.
INSTALLATION OF HOSE REEL FOR RECESSED FIRE HOSE CABINETS The Hose reel shall be installed inside the fire cabinet utilizing the existing brackets in the cabinet. Hose reel shall open fully & easily in all directions by just pulling the hose nozzle without even touching the reel.
The piping connection to the hose reel shall be as per civil defense approved shop drawings. INSTALLATION OF FIRE EXTINGUISHERS FOR RECESSED FIRE HOSE CABINETS Two approved fire extinguishers shall be placed inside the fire hose cabinets as per approved shop drawings.
AUTHORITY APPROVAL
The civil defence authority will visit the site & shall approve the installations upon completion.
PRECOMMISSIONING & COMMISSIONING METHOD STATEMENT FOR FIRE HOSE RACKS & FIRE HOSE REEL
TESTING, PRE COMMISSIONING & COMMISSIONING PROCEDURE METHOD STATEMENT FOR FIRE HOSE RACKS & FIRE HOSE REEL.
Pre-commissioning Procedure for Fire Hose Rack & Fire Hose Reel
1. Ensure that the Hose Rack & Hose Reel installation is complete and mechanical completion is approved.
2. Ensure that all drawings are approved by the civil defense authority.
3. Ensure that no damage has occurred between mechanical completion & pre-commissioning.
4. Repair all damages to the equipment paint finish.
5. Check that the Fire Fighting piping network is complete with proper valves, drains, vents, strainers, pressure reducing valves & instruments in place. 6. Ensure that the Fire Fighting network is pressure tested and approved. 7. Ensure that future provision connection to the hose reels are installed and
plugged suitably.
8. Ensure that the Fire cabinets & hose reels are installed in line with approved shop drawings & relevant method statement.
9. Ensure fire extinguishers are installed as per approved shop drawings. 10.Ensure that the fire cabinet door can be fully opened.
11.Ensure that the fire pumps are commissioned & the system is under pressure.
12.Ensure that the supervisory control valve for the fire hose cabinet is installed & electrically connected to fire alarm system.
Commissioning Procedure for Fire Hose Rack & Fire Hose Reel
1. Ensure that all the pre-commissioning checks are carried out successfully. 2. Open the supervisory isolation valve for the fire hose cabinet & allow the
water to flow into landing valve & hose reel.
Hose Reel
1. Pull out the hose from the hose reel to a length of approximately 3 meters & ensure that the automatic valve opens & the fire alarm signal is generated.
2. Ensure that the complete length of hose will open in all directions only by pulling the nozzle without even touching the hose reel.
3. Adjust the nozzle to set the required throw / flow of water. 4. Check for any leakage in the hose reel connections.
5. Check the pressure in the PRV down stream which should be 65 psi.
Hose Rack
1. Pull the hose from the hose rack.
2. Open the landing valve & check the water flow from the nozzle. 3. Check if the fire alarm signal is generated.
