AL REYAMI ELECTROMECHANICALA METHOD OF STATEMENT MECHANICAL WORKS 2009 DUBAI CONTENTS M - 01 M - 02 M - 03 M - 04 M – 05 M - 06 M – 07 Method of Statement Method of Statement Method of Statement Method of Statement Method of Statement Method of Statement Method of Statement Under ground drainage Installation of high level drainage Installation of water supply line at High level Installation of water supply line at High level Installation of Ducting Installation of copper piping for FAHU Installation of copper piping for Decorative unit Installation of Booster pump Installation of Transfer pump Installation of Submersible pump Installation of Fire pump M - 08 M - 09 M - 10 M - 11 Method of Statement Method of Statement Method of Statement Method of Statement AL REYAMI ELECTROMECHANICAL Page 2 2 Check the materials to be used are as per the approved make.0 2.9 Tangent Glue is applied on the pipe after cleaning it and abrading the surface to roughness using sand paper and left for few minutes to dry it.1 Preparation Work 3. using the water level & measuring tape with respect to the benchmark level.1.1.5 Check whether the inside portion of pipe is properly cleaned before installation / fit up. (by Consultant) AL REYAMI ELECTROMECHANICAL Page 2 .METHOD STATEMENT – M 01 UNDER GROUND DRAINAGE PIPE WORK 1. 3. The trench bed must be compacted smooth and must be free from foreign particles 3.8 Inspection of pipe work and levels to be checked.1.1 Check the trench route to be made to ensure that the pipes to be installed are as indicated on approved construction drawings. 3.1. 3. 3.4 Excavate the trench as per the route marked on approved drawing. Method 3.1.0 3. 3. 3.1.0 Purpose To define the method of installation of underground pipe work. 3.7 Lay the pipes as per the invert levels & slope mentioned in the approved layout with proper supports. Scope This method is applicable for drainage pipe work below ground.3 Levelling of ground before excavation to be done by the main contractor.1. 3.1.10 Inspect the pipe work for leakage by gravity leakage test.1.6 Place concrete blocks at standard distance to support the pipes.1. 12 Cover the pipe (up to top level) with aggregate as per standards.1 5. 3.1. the Inspection and Measuring Equipment Used 5. Goggles when necessary etc) to be worn all the times.0 Safety 6.3.1.2 Water level.1 Safety equipment (example Hard hats.1. AL REYAMI ELECTROMECHANICAL Page 2 .11 Make bedding up to the bottom level of the pipe with aggregate and compact properly. Safety shoes.0 Approved shop drawings. 5. 5. Coverall gloves. 4.1 Spirit level.3 Measuring tape 6.0 Reference documents 4. 1.1.4 Fix the unfix anchor at drilled position by gentle and uniformly hammering.1.METHOD STATEMENT –M 02 INSTALLATION OF PIPE WORK AT HIGH LEVEL ( DRAINAGE ) 1. 3. 3.8 After cutting the pipes in the required length.0 2.1.1. 3.3 Drill the marked position for hangers and supports by using the drill bit of appropriate size. AL REYAMI ELECTROMECHANICAL Page 2 . insert a 6mm diameter washer of appropriate size in to the rod. 3.1. both ends should be chamfered properly to remove the unevenness and surface is made rough using sand paper for length of 3 cm (approx) for good adhesive surface preperations.1. fix / tight the support clamps properly to make the pipe straight and level as per the layout.1.1 Installation of pipes 3.1.0 Purpose This method of statement is to define the installation of Pipe work at high level.1. Scope This method of statement is applicable for installation of Pipe works at high level for drainage pipe works. 3.2 Mark out the location of hanger thread rods for pipe installation as per the approved construction drawing.6 After fixing the threaded rod. 3. 3. 3.9 Install the pipe in position as per the approved layout and make the end connection of pipes as standard specification for each service.10 After completion of pipe end connection. this will improve the strength and load bearing capacity of threaded rod.7 Finally fix the washer near to the slab by tightening a nut over it. Installation Procedure 3.0 3.5 Fix the threaded rod of 6mm diameter appropriate size & length in the anchor by twisting by turning. Measuring tape 6.4 Electric Drill Machine Grinder Electric Cutting Machine Pressure test pump.0 Reference Documents 4.0 Safety Safety equipment (example Hard hats. Coverall Gloves.2 5. Safety shoes. AL REYAMI ELECTROMECHANICAL Page 2 .3 6.3 Pressure gauge Level gauge / Spirit level.3.0 Shop Drawings Inspection and Measuring Equipment Used 5. 4. 7.1 5.1 6.1.11 Check the levels of pipe work with spirit levels and measuring tape.12 Pressure test and final inspection of the pipe work (by Consultant) as per the testing philosophy ref. Goggles when necessary etc) to be worn all the times.1 5.1. 3.0 Equipment Required 6.2 6. 1. AL REYAMI ELECTROMECHANICAL Page 2 3. 3.1.20 Install the pipe in position as per the approved layout and make the end connection of pipes as standard specification for each service.1. 3.1. 3. 3.1. Scope This method of statement is applicable for installation of Pipe works at high level for water supply pipe works.METHOD STATEMENT –M 03 INSTALLATION OF PIPE WORK AT HIGH LEVEL ( WATER SUPPLY) 3.1.21 After completion of pipe end connection.18 Finally fix the washer near to the slab by tightening a nut over it.1. 3.1.19 After cutting the pipes in the required length.1. both ends should be chamfered properly to remove the unevenness and surface is made rough using sand paper for length of 3 cm (approx) for good adhesive surface preparations.0 Purpose This method of statement is to define the installation of Pipe work at high level.1. fix / tight the support clamps properly to make the pipe straight and level as per the layout.16 Fix the threaded rod of 6mm diameter appropriate size & length in the anchor by twisting by turning. 3.0 . this will improve the strength and load bearing capacity of threaded rod. Installation Procedure 3.1 Installation of pipes 3. 3. 3. insert a 6mm diameter washer of appropriate size in to the rod.0 4.17 After fixing the threaded rod.15 Fix the unfix anchor at drilled position by gentle and uniformly hammering.13 Mark out the location of hanger thread rods for pipe installation as per the approved construction drawing.14 Drill the marked position for hangers and supports by using the drill bit of appropriate size. 1 6. 8.4 Electric Drill Machine Grinder Electric Cutting Machine Pressure test pump.3 Pressure gauge Level gauge / Spirit level. Goggles when necessary etc) to be worn all the times.2 5.3 6.0 Safety Safety equipment (example Hard hats.0 Reference Documents 4.23 Flow and Leakage test and final inspection of the pipe work (by Consultant) as per the testing philosophy ref.1. 3.1 5.0 Equipment Required 6.2 6. Coverall Gloves.3.0 Shop Drawings Inspection and Measuring Equipment Used 5. Safety shoes. Measuring tape 6.1 5.1. 4. AL REYAMI ELECTROMECHANICAL Page 2 .22 Check the levels of pipe work with spirit levels and measuring tape. 1.6 After fixing the threaded rod.1.8 After cutting the pipes to the required length. 3.5 inch both ends should be threaded by using a threading machine and for pipe diameter above 2.3 Drill the marked position for hangers and supports by using the drill bit of appropriate size.5 Fix the threaded rod of 6mm diameter appropriate size & length in the anchor by twisting by turning. 3.1. 3.1.0 AL REYAMI ELECTROMECHANICAL Page 2 . 3. this will improve the strength and load bearing capacity of threaded rod. Installation Procedure 3. if the diameter of the pipe is less than 2. 3. 3. 3.4 Fix the unfix anchor at drilled position by gentle and uniformly hammering.1. Scope This method of statement is applicable for installation of Pipe works at high level for fire fighting pipe works.5 inch the pipes are groove cut to the required depth as per the installation specification.0 Purpose This method of statement is to define the installation of Pipe work at high level.1. 3. insert a 6mm diameter washer of appropriate size in to the rod.METHOD STATEMENT –M 04 INSTALLATION OF PIPE WORK AT HIGH LEVEL ( FIRE FIGHTING) 5.1 Installation of pipes 3.1.0 6.9 The pipes are connected to each other using a grooved coupler as per the standard pipe installation procedure.2 Mark out the location of hanger thread rods for pipe installation as per the approved construction drawing.7 Finally fix the washer near to the slab by tightening a nut over it.1. 2 5. fix / tight the support clamps properly to make the pipe straight and level as per the layout. Goggles when necessary etc) to be worn all the times.0 Reference Documents 4.1 6.1 5.12 Flow and Leakage test and final inspection of the pipe work (by Consultant) as per the testing philosophy ref.1 5. Grooving Machine 9.10 After completion of pipe end connection.3. AL REYAMI ELECTROMECHANICAL Page 2 .1.1.3 6. Coverall Gloves. Safety shoes.11 Check the levels of pipe work with spirit levels and measuring tape.0 Shop Drawings Inspection and Measuring Equipment Used 5. 4.0 Safety Safety equipment (example Hard hats. Measuring tape 6.5 Electric Drill Machine Threading Machine Electric Cutting Machine Pressure test pump. 3.3 Pressure gauge Level gauge / Spirit level.2 6.1.4 6. 3.0 Equipment Required 6. 1. this will improve the strength and load bearing capacity of threaded rod.1 Installation procedure 3.METHOD STATEMENT M .3 Drill the marked position for hangers and supports by using the drill bit of appropriate size. 3.1.1.7 Finally fix the washer near to the slab by tightening a nut over it. 3.1.10 Install the VCD’s as per the approved drawings.1. 3. Scope This method is applicable for Ducting. 3. 3. using pre-insulated material of applied make. insert a washer of appropriate size in to the rod.4 Fix the unfix anchor at drilled position by gentle and uniform hammering.2 Mark out the location of hanger thread rods for duct installation as per the approved construction drawing.1.5 Fix the threaded rod of 6mm diameter & length in the anchor by twisting.6 After fixing the threaded rod of 6mm diameter. 3.1.0 3.8 Fix all the duct pieces from the mouth of the unit 3.1.1 Fabrication of ductwork will be as per DW142/ASHRAE Standard .0 Purpose To define the method of installation of Ducting. Installation Procedure 3.9 Joint all the ducts using flanges or cleats and corners. AL REYAMI ELECTROMECHANICAL Page 2 . 3.05 INSTALLATION OF DUCTING 1.0 2.11 Insulate the ducts using Fibre Glass wool if it is a GI duct. 3.1.1. 3.1. 12 Dip the canvas cloths in Foster and fostering all the ducts in case of GI duct 4. Safety shoes.3.1 Safety equipment (example Hard hats. Sheet cutter.0 Inspection and Measuring Equipment Used 4. AL REYAMI ELECTROMECHANICAL Page 2 .1 Measuring tape.0 Safety 5. Goggles when necessary etc) to be worn all the times. Coverall gloves.1. and adjuster.1. 5. 8 3.12 Insulation is wrapped around the copper piping and further wrapped with 6oz cloth and Childers. Fix the Vibration isolators (RIBBED RUBBER PADS) for AHU on Plinth.9 3.1 3.2 3.6 Check the plinth for AHU is of required size.06 INSTALLATION OF COPPER PIPPING FOR FAHU 1. 3. AL REYAMI ELECTROMECHANICAL Page 2 . sight glass Dryer and filter are installed on liquid line Control valve and sight glass are installed on suction line. Place the AHU on the Vibration isolator.8 3.0 Purpose To define the method of installation of Copper piping Scope This method is applicable for installation of Copper piping and DX-AHU. 3.4 3. Method 3. Expansion valve. 3.0 2. Mark out the exact location of AHU Units on plinth.10 Vacuuming to be carried out using vacuum pump. Hang the condenser unit with proper supports Install the Copper pipes from AHU to Condenser Units as per the approved layout using flare nuts as brazing as per the unit specification and manufacturers recommendation.11 R-22 gas to be charged referring to charging chart as per the manufacturer’s recommendation. Braze the joints as per the standard specification Pressure testing and flushing to be carried out prior to vacuum suction.0 3.METHOD STATEMENT M .5 3.7 3.3 3. 6.1 Safety equipment (example Hard hats.4. Goggles when necessary etc) to be worn all the times. Brazing set.0 Safety 6.0 Inspection and Measuring Equipment Used 4. Coverall.2 Pressure Gauge.1 Approved Drawings. pipe cutter and pipe bender.0 Reference documents 4. gloves. 5. Safety shoes. AL REYAMI ELECTROMECHANICAL Page 2 . 5 Hang the indoor unit with proper supports 3.2 Mark out the exact location of outdoor Units on plinth. 3. 3. 3.6 Install the Copper pipes from the Condenser Units as per the approved layout using flare nuts and brazing as per the unit specification and manufacturers recommendation.9 Vacuuming to be carried out using vacuum pump. 3.7 Braze the joints as per the standard specification 3.07 INSTALLATION OF COPPER PIPPING FOR DECORATIVE UNIT 1..3 Fix the Vibration isolators (RIBBED RUBBER PADS) for outdoor on Plinth.4 Place the outdoor unit on the Vibration isolator.0 2.8 Pressure testing and flushing to be carried out prior to vacuum suction.0 AL REYAMI ELECTROMECHANICAL Page 2 .0 Purpose To define the method of installation of Copper piping Scope This method is applicable for installation of Copper piping for decorative wall mounted unit. 3.METHOD STATEMENT M . 3.1 Check the plinth for the outdoor unit is of required size.13 Insulation is wrapped around the copper piping and further wrapped with 6oz cloth and Childers. Method 3.10 R-22 gas to be charged referring to charging chart as per the Manufacturers recomendation 3. 3. 3. 3 Pressure Gauge. 6. pipe cutter and pipe bender.0 Inspection and Measuring Equipment Used 4. Goggles when necessary etc) to be worn all the times. gloves.4.1 Approved Drawings. Brazing set. AL REYAMI ELECTROMECHANICAL Page 2 .1 Safety equipment (example Hard hats. 5.0 Safety 6.0 Reference documents 4. Safety shoes. Coverall. 3. 3.5 Pump installation shall be completed according to the manufactures recommendation.3 Fixing position shall be marked out on the concrete base. 3.2 Approved Drawings.METHOD STATEMENT M . Approved Material Submittal.1 4.1 Check the plinth for the Booster pump is of required size.08 INSTALLATION OF BOOSTER PUMP 1.8 The suction & discharge side of the Pump shall be connected to flexible connector 3. AL REYAMI ELECTROMECHANICAL Page 2 .7 Discharge side shall be connected to the water supply network of the building through pressure gauge and isolating valve 3.0 2.4 Rubber pad shall be laid before fixing the pump.6. 3.0 Reference documents 4.0 3.0 Purpose To define the method of installation of Booster pump Scope This method is applicable for installation of Booster pump.9 Anti-vibration pad shall be fixed to the pump 4.2 Booster pump installation works shall be carried out in accordance with the specification. The size of the suction pipe shall be as per manufactures . 3.recommendation 3. Method 3. AL REYAMI ELECTROMECHANICAL Page 2 . Safety shoes.4 Pressure Gauge. Spirit level. Measuring tape.1Safety equipment (example Hard hats. Coverall.0 Inspection and Measuring Equipment Used 4. Gloves. Goggles when necessary etc) to be worn all the times.5. 6.0 Safety 6. 0 Reference documents 4.5 Pump installation shall be completed according to the manufactures recommendation.2 Approved Drawings.0 2.1 4. 3.2 Transfer pump installation works shall be carried out in accordance with the specification. Approved Material Submittal.8 The suction & discharge side of the Pump shall be connected to flexible connector 3.4 Rubber pad shall be laid before fixing the pump. 3. AL REYAMI ELECTROMECHANICAL Page 2 . The size of the suction pipe shall be as per manufactures recommendation.0 Purpose To define the method of installation of Transfer pump Scope This method is applicable for installation of transfer pump. Isolating valve with suction pipe.7 Discharge side shall be connected to the water supply network of the building through pressure gauge and isolating valve 3. 3.1 Check the plinth for the transfer pump is of required size.6 The suction side of the pump shall be connected to foot valve and .09 INSTALLATION OF TRANSFER PUMP 1. 3.9 Anti-vibration pad shall be fixed to the pump 4. Method 3.0 3. 3.METHOD STATEMENT M . 3.3 Fixing position shall be marked out on the concrete base. 6. Coverall.5. Goggles when necessary etc) to be worn all the times.0 Inspection and Measuring Equipment Used 4. Spirit level.1Safety equipment (example Hard hats. Gloves.0 Safety 6. Safety shoes. Measuring tape.5 Pressure Gauge. AL REYAMI ELECTROMECHANICAL Page 2 . 10 INSTALLATION OF SUBMERSIBLE PUMP 1. 3. 5. 3.3 Fixing position shall be marked out on the manhole wall.2 Submersible pump installation works shall be carried out in accordance with the specification. Method 3.1 Check the support for the submersible pump is of proper size.0 Reference documents 4. 3. Spirit level. Float valve and isolating valve. 3. 3. The pipe size to be as per the pump Manufacturer’s recommendation.0 2.0 Inspection and Measuring Equipment Used 4. Measuring tape.1 4.METHOD STATEMENT M .5 The suction side of the pump shall be connected with alarm switch.0 3.6 Discharge side shall be connected through the pressure chamber To the adjacent manhole 4. Approved Material Submittal.4 Pump installation shall be completed according to the manufactures recommendation. AL REYAMI ELECTROMECHANICAL Page 2 .0 Purpose To define the method of installation of submersible pump Scope This method is applicable for installation of submersible pump.2 Approved Drawings.6 Pressure Gauge. Gloves. Coverall.1Safety equipment (example Hard hats. Goggles when necessary etc) to be worn all the times. Safety shoes. AL REYAMI ELECTROMECHANICAL Page 2 .0 Safety 6.6. Method 3.10 .8 3.0 Purpose To define the method of installation and operation of fire hose reel pump.1 3.6 3. Fix the pressure switch and pressure gauge on the discharge header.2 3.check whether all joints are straight.4 3.METHOD STATEMENT –M 11 INSTALLATION OF FIRE HOSE REEL PUMP 1.0 3.5 Check the foundation is ready as indicated on approved Construction drawing.7 3. Load the pump on a strong foundation.3 3. Connect the suction and discharge line to the manifold .0 2. The pump set should be located near to the suction reservoir.9 3. Fix the gate valves non return valves vibration protected flexible connector etc and suction discharge manifolds as shown on the dawning. Pump set is accurately aligned in the factory before dispatch. Use the expansion bolts to the base frame to the concrete foundation. The surface of the foundation should be smooth and level. AL REYAMI ELECTROMECHANICAL Page 2 3. Scope This method is applicable for installation and operation of fire hose reel pump. Ensure easy access to the unit from all sides for maintenance and services. However it is essential to recheck the alignment at site after fixing pump set on the site. Check the level of suction pipe line is to be below the level of pump(suction header) Check whether the required piping and valves are installed properly Make sure that electrical panel for the pump is given correct power supply with protection. After installation has been completed an operational test has to be conducted to ensure the proper operation of the pump set.16 4. Do the wiring from electrical supply source to the pump control panel. Goggles when necessary etc) to be worn all the times. AL REYAMI ELECTROMECHANICAL Page 2 . Coverall gloves. Keep starting point of electrical pump slightly higher than the starting point of diesel pump. Keep starting point of jockey pump is slightly higher than starting point of electrical pump.1 Approved Drawings. Panel.11 3.0 Inspection and Measuring Equipment Used 5. Do the necessary piping between the fuel tank and diesel tank. 5. 3.0 Safety 6. motors pressure switches and float switches must be grounded with suitable wires.1 Pressure Gauge.1 Safety equipment (example Hard hats.3 Mulitimeter 6.0 Reference documents 4.2 Spirit level. Interconnecting wiring between the panel and motor diesel engine pressure switches float switches for dry run protection etc should be done.3. 5.12 Fill the water in the pump and suction line through the priming valve and remove all the air blocks. Safety shoes.14 3.15 3.13 3. 5.