Method Statement Title: Installation of Exhaust Fans (Parking Area)
Scope
- This method statement applies to installation of Exhaust Fans (Parking Area) and associated accessories.
- Purpose
- Purpose of this method statement is to outline the method of storage, handling and installation of Exhaust Fans (Parking Area) and accessories.
- Material
- Exhaust Fans (Parking Area).
3.2 Threaded rods, fasteners for supports.
3.3 Duct flexible connections.
- Electrical cables.
- Method
- Receiving
- On arrival at site all Fans shall be checked for quantities, model number, physical damages, and notifies the supplier of any discrepancies. After completion of inspection, fan shall be stored properly with protective covering.
- Any items found damaged or not suitable as per the project requirements shall be removed from site. Until such time, the damaged/non-compliant material shall be clearly marked and stored separately to prevent any inadvertent use.
- Storage
- While unloading the fans shall be carefully and slowly lowered to the ground. Adequate manpower will be engaged according to the size of the fan. Upon completion of receiving QC inspection, the fans will be segregated model/size wise and stacked accordingly for easy retrieval.
- Fans shall be stored on a flat surface in well ventilated and covered storage area.
- Manufacturer’s instructions shall be strictly followed as applicable.
- While stacking the fans, ensure that bottom most fan packing shall not be damaged.
- Where applicable, the bigger size Exhaust Fans shall be stored at the bottom and smaller size Exhaust Fans above.
- Store Keeper will be responsible for proper storage and maintenance of records, as required.
- Preparation
- Check and ensure all drawings used for installation are latest and approved for construction.
- Mark the support locations as per approved drawings/manufacturers details and fix the approved anchor fasteners in the slab.
- Ensure easy access and sufficient clearance for maintenance and removal of motors.
- Comply with Manufacturer’s instruction as applicable.
- Installation
- Shift the fans to the place of installation in safe manner. Sufficient manpower will be engaged for safe shifting and handling of the fans.
- The fans shall be shifted to the site only after preparations for fan installation is complete.
- The bigger fans shall be shifted to site on hand trolly/frok-lift/crane as applicable/required.
- Drill holes in the slab as required and fix the hangers and supports.
- Unpack the fans for installation.
- Fix the flexible duct connector to fan inlet as per approved drawings.
- Lift and install fans carefully on the supports. Engage sufficient manpower as required for safe installation.
- Provide anti-vibration isolators as applicable.
- Check the level of the installation in co-ordination with other services and approved drawings.
- Cut and trim the support rods after finalising the levels. Leave 25mm extra length of the support rods for final adjustments. Threaded rod ends to be painted zinc rich primer.
- Remove burrs and sharp edges, if any.
- Install the electrical power connections as per approved drawings and as per approved method statement Ref:ETA/MS/E-105.
- Clean the interior of the fans.
- Install the ducting connection piece at the inlet of the fan and terminate at the intake wire mesh grille/louvers.
- Follow the manufacturers instructions while installing and leveling the fans.
4.5 Electrical connections
4.5.1 Electrical power connections shall be done as per approved drawings.
- Cables shall be installed and terminated as per approved method statement Ref;ETA/MS/E/015
4.6 BMS Interfacing
BMS interfacing as defined in Material Submittal No.NMX/BDR/4045/GEN/CD/10809 dated 10.10.04 (ETA M-024, Rev.3)
- Inspection
- Upon completion of installation, Work Inspection Request shall be raised for Consultant’s inspection.
- QC inspection shall be carried out as per the installation checklist.
- Safety
- All safety precautions shall be followed as per established project safety plan and procedure.
- Only experienced and skilled technicians shall be engaged for carrying out fans installation work.
- The people involved in the installation shall use PPE such as safety helmets, safety shoes, safety harness, gloves, etc as required.
- Safety officer shall check and ensure that all safety precautions are followed.
- Safety officer shall check and ensure that all scaffolding and ladders used at site are having duly signed tags.
- Reference
- Manufacturers catalogue.
- Approved submittal.
- Shop drawings.
- Specification section 15800.
- Records
- `Work Inspection Request’ duly signed by the Consultant.
8.2 Signed off Fan’s installation checklist.
