Fans Installation

SCOPE AND PURPOSE

This "Method Statement" covers the on-site installation of FANS and the requirements of checks to be carried out.

REFERENCE DOCUMENTS

· Project Specifications
· Approved shop drawings (latest revision)
· Approved material submittals

GENERAL

Fans are generally installed in locations shown in drawings. Types of fans used are mainly classified as Toilet extract fan (TEF), Kitchen extract fan (KEF), Lobby pressure relief fan (LRF), Stairwell pressurization fan (SPF), Car park exhaust fans, Jet fans, etc.

EQUIPMENT

· Drilling Machine
· Spirit Level
· Lifting Equipment (Cranes)
· Scaffolding
· Hand tools of Tradesmen

RESPONSIBLE PERSONNEL

· Project Engineers
· Construction In-Charge.
· Site Engineer/Site supervisor.
· QA/QC Inspectors.
· Safety officer
· Site Foremen.
· Pipefitters
· Helpers

METHOD OF PRE-INSTALLATION

• Ensure that the approved material required to carry out work is available.
• Check the nameplate details of Fans as per the approved shop, drawing/schedules, and material submittals before installation.
• Prior to the commencement of work, the area and access will be inspected to confirm that the site is ready to commence the work
• The site engineer will check all relevant documentation and materials applicable to particular sections of work before commencement.

• Physical verification of material will be carried out for any damages prior to taking it from stores.
• The site engineer/supervisor will instruct the tradesman and provide the necessary construction/shop drawings.
• The site engineer/supervisor will also check that the tools and equipment available are in compliance with contract requirements.
• The site supervisor also explains to tradesmen regarding safety precautions to be observed.

METHOD OF INSTALLATION

1. Prior to the commencement of work, coordination will be done with other services.
2. Make sure that fans are free from damage and that all internal components are complete and in good condition.
3. Fan assemblies will be transported to the nearest point of erection. Care will be taken while handling the units to avoid damage/distortion.
4. The manufacturer's recommendation will be followed for the installation of fans.
5. Fans will be installed in the location as per the approved shop drawing.

INSTALLATION OF FLOOR MOUNTED FANS

1. Ensure that the builder's work foundation is provided as per the approved shop drawing.
2. Ensure the level of Foundation by spirit level.
3. Check the size and orientation of the foundation for its suitability to install the fans.
4. Fix the Vibration Isolators to the foundation as per the approved submittal.
5. Install the Fan assembly mounting brackets on vibration Isolators as per the manufacturer's recommendations.
6. Complete the ductwork/damper installation as per the approved shop drawing.

INSTALLATION OF INLINE MOUNTED FAN (CEILING SUSPENDED)

1. Fans can be mounted either horizontally or vertically as per the approved shop drawing.
2. Support the fans by using threaded rods to the fan casing as per the manufacturer's recommendations.
3. Provide vibration isolators (approved type) as per the manufacturer's recommendations on the mounting brackets/holes.
4. Complete the ductwork/damper connection as per the approved shop drawing.
5. Ensure that sufficient space is available to allow the removal of access covers and the subsequent removal of fan and motor assemblies, etc., as per the manufacturer's recommendations.
6. Complete all electrical connections as per the approved electrical drawing and manufacturer's terminal diagram.
7. Earthing shall be provided as per requirements.
8. Complete the labeling of electrical connections as per schematic drawings.
9. Fan rotation shall be checked before duct connection.

QUALITY CONTROL

• QC Engineer, along with Project Engineer and Site Supervisor, will monitor that all components are installed as per the contract specifications and approved submittals.
• Inspection Request (IR) shall be submitted to the Main Contractor/Consultant.

SAFETY

• Work will commence as per safety regulations laid down in the contract specification and project safety plan.
• Proper safety harness to be used and secured, if required.
• All personal protective equipment shall be used as appropriate according to the nature of the job.
• Housekeeping shall be of good standard, and all cut lengths and debris shall be removed.
• All lifting operations shall be monitored by Safety Officer.

References:

MEP Planning Manual by Mr. Gulshan Kumar