METHOD STATEMENT FOR INSTALLATION OF FCUs

TABLE OF CONTENTS

1. Scope / Objective

• Reference

• Access / Egress

• Health and Safety Hazards
  • Safety Lighting
  • Task Lighting
  • Emergency Arrangements
    • General
    • Fire Precautions
    • Communication
  • Risks Control
• Hazards / Risks
• Control Measures / Permits
• 3^rd Party Protection
• Environmental Considerations

• Definitions

• Responsibilities / Supervision

• Procedures / Method to be Employed

• Training

• Working Hours

1. House Keeping

1. Manpower Requirement & Supervision

1. Material Requirement

1. Plant & Equipment
   1. General
   1. Plant and Equipment Schedule
   1. Personnel Protective Equipment
   1. Power
   1. Working Platforms

1. Q.C. Approvals and other Documentation

1. Supporting Documentation

1. Distribution

1. Other Information

1. Site Safety Engineers Approval

1. Attachment – Sketches

1.0     SCOPE / OBJECTIVES

This Method Statement covers the installation of Fan Coil Units (FCU). This procedure defines the method used to ensure the FCU installation has been carried out as per contract requirements and best commercial practices.

• REFERENCES

Contract document:           1105/SP/M-15100 Basic Materials and Methods

                                        1105/SP/M- 15317 Fan Coil Units

Technical Submittals:        HVAC Fan Coil Units

Manufacturer’s Installation and Maintenance Manual

The Shop Drawings and FCU installation details should provide enough details for the installation to be carried out. In the absence of any information the above documents should be referred to in the order shown.

• ACCESS / EGRESS

Work will be carried out only when all associated works of the main contractor have been verified that they have been completed.

4.0     HEALTH AND SAFETY HAZARDS.

Implementation of Health & Safety mechanisms and checks as per Contract Agreement and the approved A&P Health & Safety Manual. The responsible Safety Officer for each building will conduct routine safety inspections.

1. Safety Lighting.

     Safety lights will be used in case of power failure ensuring good illumination of the working area. Task lighting will be connected to the nearest site distribution board which is RCD protected.

• Task Lighting.

Adequate lighting will be provided ensuring the good illumination of the working area.

• Emergency Arrangements.

• General: Site general safety procedures will be followed. In case of emergency the Safety Officer will stop the work. He will put into action the emergency arrangements and report to assembly points as indicated during the Site Induction Course.

• Fire Precautions: No significant fire risk is associated with this activity but general fire prevention measures will be taken as per Arabtec instructions to A&P.

• Communication: Communication from work areas to Site Office via mobile phones issued to Senior foremen. In emergency situations the users of hand-held 2-way radios to be notified if deemed that this can speed up notification of relevant personnel and/or the JBR01 Site Clinic.

• Risk and Controls.

• Hazards / Risks

     Relevant Risk Assessments (See Section 19 Attachments):

              1.     PRT – 007 Hand Tools

              2.     WAH – 001 Ladders and Stepladders

              3.     WAH – 002 Mobile Elevated Working Platforms

              4.     WAH – 006 Working at Heights

              5.     MAT – 004 Disposal of Waste Materials

• 3^rd Party Protection: Applicable as per the contract only

• Environmental Considerations: After the finalization of the works the working area should be cleaned from any scrap materials related to the performed work.

5.0     DEFINITIONS

                     As to specifications (see References).

6.0     RESPONSIBILITIES / SUPERVISION

• Project Manager – will have the overall responsibility of the Project for execution, quality and safety. Also he will maintain the planning progress and coordination of works with main contractor.

• Project Senior Mechanical Engineers / Site Mechanical Engineers – will be responsible for the day to day activities on site, for materials, drawings, testing & commissioning and allocation of Departmental resources to work areas on Site. The Project Senior Mechanical Engineer will report to the Project Manager.

• Supervisor – will be directly responsible for the day-to-day job on site, for coordinating work with the technicians or any other staff assign to his area.

• QA/QC Department – will be overseeing the quality requirements and quality control measures for the Project in coordination with the Senior Project Mechanical Engineer as outlined in the A&P QA Manual.

• Safety Officer – will be responsible for the Health and Safety aspects on site as per the Mains Contractor and A&P Safety requirements.

• PROCEDURES / METHOD TO BE EMPLOYED.

• Pre – Ordering:

Drawings must be prepared and approved.

• Ordering:

Follow standard A&P procedures for ordering of FCU and related materials.

• Factory manufacture.

As per Supplier/Manufacturer

• Transportation to site:

FCU will be transported to the site by the supplier.

Care must be taken to ensure the FCUs are not damaged during transportation. The units will be delivered in crates to prevent them from being scratched or items from loosing up.

7.5 Storage

If equipment is to be stored outdoors, special care must be taken to protect the units from moisture corrosion and dust.

7.6  Unpacking and Preparation

Units should not be removed from the crate until reaching the final location to be installed. This way the prevention of damages is ensured.

Prior to installing the unit the following should be followed:

.1    Carefully remove the unit from crating

.2    Check for shipping damage and make sure that all loose items are         encountered for.

7.7  Preliminary Installation

Provisions must be made during the construction of the building to allow the provision of the following items before the final installation of the individual units. These are:

.1    Water piping and condensate drain connection

.2    Power supply and wiring

.3    Supply and return air ductwork

.4    Space requirements and clearance

.5    Ceiling or mounting strength

.6    Unit hanger holes and ceiling anchors or studs location

7.8  Drain and Water Piping

All supply, return and drain lines installed in the building must be installed according to specifications and approved shop drawings and any other relevant documentation (manufacturer’s instruction etc.).

All the piping must be accurately installed for accurate connection of the units.

          7.9  Installation Precautions

The following precautions must be considered before carrying out the installation of the unit.

.1 The unit must be installed level to assure proper drainage and operation. The unit must be mounted so that the drain water will flow toward the drain connection.

.2 Ensure that overhead supports are strong enough to hold the unit’s weight by using 10 mm threaded rod.

.3 Be sure that foreign material is not allowed to collect in the drain pans. All foreign material must be removed from the drain pan and the drain line must be open before the unit is put into operation.

7.8  Right and Left Hand Arrangements

Water and drain connections can be located on either the right or the left side of the basic unit. A basic unit is designated as a left hand unit when the water and drain connections are on the left side of the unit when facing the discharged air outlet, and right hand when these connections are on the right.

7.8   Installation Procedure

.1 Mount the basic unit to the ceiling. Four (4) mounting holes are provided to accept suitable size studs or bolts. Use suitable metal washers, lock washers and nuts to secure unit.

.2 Check that hangers are secure and that the base of the unit is level in the two horizontal directions, taking into account the recommended gradient (10 mm) for the drainage flow.

    (Shim the unit if necessary to obtain proper levelling. When properly levelled, the drain water will flow toward the drain connection of the drain pan.)

.3 Make electrical connections according to the wiring diagrams

.4 Make duct connections.

7.8  Visual Inspection

The units must be visually inspected to ensure that the correct installation procedures have been followed and that the units are securely supported in the prescribed manner.

• TRAINING

8.1  Tradesmen performing the described work will be experienced technicians. If deemed necessary specific team / individuals will undergo further training and awareness programs for this activity by the Production / Quality Assistance Departments.

• Toolbox talks will provide general training and awareness for each activity and also in Health & Safety matters and precautions.

• WORKING HOURS

Normal working hours: 7.00 a.m to 5.00 pm

1. HOUSE KEEPING

          All work places where A&P personnel are working will be cleaned from the scrap materials derived from their work ensuring clean and healthy work environment as well as to maintain free access and egress in the event of emergency.

1. MANPOWER REQUIREMENT & SUPERVISION

Manpower requirement & supervision depends upon the planning organization chart and site progress of works.

1. MATERIAL REQUIREMENT

1.      Fan Coil Units

1. PLANT & EQUIPMENT REQUIREMENTS

1.      Plumber’s Tool box

2.      Helper’s Tool Box

Personnel Protective equipment:  All personnel should wear at all time safety shoes, helmet and coverall.

1.    Working Platforms: Scaffolding as required within the specific work area.

1. Q. C.  APPROVAL AND OTHER DOCUMENTATION

1. SUPPORTING DOCUMENTATION

Shop drawings.

1. DISTRIBUTION

• Main contractor,
  • Project Senior Mechanical Engineer
  • Q.C. Engineer
  • Site Mechanical Engineer
  • Tower Health & Safety Officer

1. OTHER INFORMATION

No applicable

1. SITE SAFETY ENGINEER’S APPROVAL

Risk mitigation measures as identified in Risk Assessments in Section 19 to be inspected at regular intervals for Activity duration as identified in the approved Health & Safety Manual.

1. ATTACHMENTS

Quality Control Checklists:

                 FCU Installation Quality Control Checklist

       Risk Assessment Forms:

PRT – 007 Hand Tools

WAH – 001 Ladders and Stepladders

WAH – 002 Mobile Elevated Working Platforms

WAH – 006 Working at Heights

          MAT – 004 Disposal of Waste Materials