Motorized Damper & Motorized Fire Smoke Dampers (MD & MFSD) T & C Method Statement
1- Introduction
1.1 Scope
This method statement deals with the testing & commissioning of Motorized Dampers & Fire/Smoke Dampers (MD/MSFD).
1.2 Objective
The purpose of this method statement is to define the step-by-step procedure to implement the correct practices for the Testing & Commissioning of Motorised Dampers & Fire/Smoke Dampers (MD/MSFD).
This is through the guidelines contain here to ensure that the job execution complies with the project specifications and serves the intended function to a satisfactory level.
2- Prerequisites to Procedure
Before start testing and pre-commissioning the equipment, the listed measures need to be respected:
2.1 Site Accessibility and Safety
· Free access is provided to officially appointed personnel only.
· Safe environment is provided in electrical rooms.
2.2 Documentation for inspection
· Method statement is approved, including test forms.
· Method statement is approved, including test forms.
· SCC and ATP certificates are signed.
· Materials approved.
2.3 Quality Control test reports and submittals
· IR for installation is cleared from significant items.
· IR for testing all the cables connected to the damper is approved.
2.4 Power on the requirement
All Electrical Pre-commissioning to be completed witnessed and approved.
3- Design Parameters
All design parameters references are specified as below:
3.1 Specification Reference
· Section 15910 Ductwork Accessories.
4- Reference Documents/Drawings
4.1 Relevant Codes
· NFPA 70
· NFPA 90A
· SMACNA (HVAC Commissioning Manual)
· UL 555S Standard for Smoke Dampers
4.2 Drawing Reference
Related approved drawings references to be attached to WIR & test package. This document needs to be read in conjunction with the following document and other relevant contract documents and not limited to the below:
4.2.1 Approved Schematic Drawing Reference:
Related approved schematic drawings references to be attached to WIR & test package.
4.2.2 Relevant Approved Material Submittal:
Related available approved materials submittals to be attached to WIR & test package.
5- Pre-Start Checks/Pre-commissioning
5.1 Motorized Dampers (MD) Pre-commissioning Checks:
· Check that the damper blade/blades are open.
· Check that the MD actuator is installed as per manufacturer recommendation.
· Connection to BMS control module is done.
· Check the Installation is free from damages.
· Check the MD are in the correct location as per the approved shop drawing.
· Check that all cables are fixed without tangling.
· Check the rotation of MD manually and ensure freedom of rotation.
· All dampers are fitted with suitable access doors or movable duct sections to drop test the dampers.
5.2 Motorized Smoke Fire Dampers (MSFD) Pre-Commissioning Checks:
· Check that the damper blade/blades are open.
· Check that the MSFD actuator is installed as per manufacturer recommendation.
· Connection to Fire alarm control module is done.
· Check the Installation is free from damages.
· Check the MSFD’s are in the correct location as per the approved shop drawing.
· Check that all cables are fixed without tangling.
· Check the rotation of MSFD manually and ensure freedom of rotation
· All dampers are fitted with suitable access doors or movable duct sections to drop test the dampers.
6- Commissioning/Test Procedures
6.1 Motorized Dampers (MD) Commissioning Checks:
Non-Fire Rated Dampers Testing and Commissioning will be in conjunction with automation system control field devices and sequence of operation.
· During Testing of each Motorized Damper, issue an open/close command from DDC HMI and make sure the damper modulates to 100% open/close position.
· Based on the Sequence of Operation, the damper should react in compliance with programmed output.
6.2 Motorized Smoke Fire Dampers (MSFD) Commissioning Checks:
· MSFD Controlled by FAS, the Test of MSFD will be done during FAS Pre-commissioning.
· MSFD is controlled by the smoke control system, the Test of MSFD will be done during SCS Pre-commissioning.
· Simulate smoke alarm in the related Fire/Smoke Zone and Verify the MSFD Open/Close accordingly.
· Verify damper actuator is functioning correctly.
· Verify control module is functioning correctly.
· Verify MSFD functionality as per approved Cause & Effect.
· The above tests will be repeated for all MSFD’S.
7- Interface Procedure
· For Motorized Non-Fire rated dampers, BMS controls the MD position (Open / Close).
· For Fire-rated dampers, Verify that all connections needed for the interface with Fire Alarm and Smoke Control systems are available.
· All connections made between the MSFD and FAS will be tested during FAS System Pre-Commissioning.
· All connections between the MSFD and Smoke Control system will be tested during System Pre-commissioning.
8- Documentation
The documents are attached in this file as mentioned below,
· Annexure -1: Motorized Dampers & Fire/Smoke Dampers (MD/MSFD) Pre-Commissioning Check Sheet.
· Annexure -2: Motorized Dampers & Fire/Smoke Dampers (MD/MSFD) Commissioning Check Sheet.
9- Demonstration Procedures
· After completing the procedures mentioned in section 6.0. The Inspection request with all relevant documents is to be sent to Main Contractor for review and inspection.
· After initial verification by the Commissioning Manager, the client’s representatives will be invited to witness the works.
· After attaining approval, test/report sheets will be signed off from all mentioned in the signature block.
· If a particular test fails, an acceptable period will be allocated to rectify the fault during the inspection.
· Test/report sheets to be distributed as per Project Specification.
10- Instrumentation
10.1 Personal Protective Equipment:
· Helmet.
· Gloves.
· Goggles.
· Safety Shoes.
· Hi-Vis. Vest.
10.2 Testing Equipment:
The test equipment and tools needed to complete Testing and commissioning for Motorized Dampers & Fire/Smoke Dampers (MD/MSFD).
11- Staffing
11.1 Testing & Commissioning Engineer
Facilitates all Testing and commissioning of MEP installations of the project, Testing and commissioning, start-ups, and documentation.
11.2 Senior Electrical/Mechanical Engineer:
Controls all the electrical/mechanical installation management processes.
11.3 Electrical/Mechanical Engineer
Responsible for the installation of the electrical/mechanical systems to be tested.
11.4 Safety Engineer:
Responsible for ensuring the safety of the workers as well as the workplace during Testing and commissioning.
11.5 Commissioning Manager
Verify approval of the entire Testing and commissioning of electrical/mechanical installations and documents before requesting inspections to PMCM/ Client representative.
11.6 PMCMs / Client Representative:
Verify the entire Testing and commissioning of electrical/mechanical installations to witness and approve the test on-site.
11.7 QC Engineer:
Coordinates with the site Engineers and Client Representatives with regard to Testing and commissioning and the Hand-over process
Responsible for witnessing the test and will assure all installation and Testing are approved based on specifications and standards
Should attend during Inspection, Testing & Commissioning, and Hand-over.
11.8 Site Foreman/ Electrician:
To assist with the Testing and commissioning of electrical/mechanical works.
11.9 Supplier’s Representative:
To assess the Testing and commissioning of their owned/supplied electromechanical equipment.
12- Safety Aspects & Permit to Work Requirements
12.1 Health and Safety
12.2 Introduction
· All sub-contractors will comply completely with the consultant’s approved HSE plan / Ref.
· Contractor must adhere to the consultant’s health Safety& environment Policy.
12.3 Safety Aspects & Permit to Work Requirements
- All employees involved in the activity shall undergo site HSE induction course before the worksite.
- Site activities shall be carried out safely according to the approved “Project Health, Safety and Environment Plan.”
- The commissioning team must follow the consultant’s permit to work system (Internal) and Client LOTO procedures.
- Commissioning team must read and understand and follow the consultant’s / Client’s LOTO procedures.
- A designated permit issuer/receiver or coordinator shall be appointed to control the commissioning area and commissioning works.
12.4 Training
All commissioning & testing personnel will attend a Safety Commissioning Meeting and pre-commissioning safety training before work commences.
12.5 Hazards Related to Testing & Commissioning
- The following HSE training shall be delivered to the person but not limited to:
- Working at height
- Hazards from electricity
- Use of Power/hand Tools
- Night working
12.6 Risk Assessment and Control
- HSE Hazards involved in the activity have been assessed through Hazards & Effects Management Process (HEMP) for every activity and that the outcome is recorded.
- The contents in HEMP Register shall be disseminated within the teams by the shift supervisor/foreman through toolbox talks.
- Any new hazards identified other than in the HEMP regarding site conditions shall be assessed. The Site Engineer/Supervisor shall take control measures prior to commencement of any activity.
- The following control measures generally apply to all hazards that shall be adopted as a proactive measure, in addition, to the specific controls identified in the HEMP register:
- Correct use & Maintenance of tools and equipment.
- Deployment of a competent personnel for the task.
- Conduct daily toolbox talks prior to work commencement.
- Good Housekeeping.
- Adequate and effective supervision.
- Provisioning appropriate PPEs based on the nature of the works.
- Awareness about emergency response.
12.7 First Aid / Medical Facility / Emergency Response
· Availability of First Aiders, with ready access to first aid boxes kept at the site, shall be ensured at the worksite.
13- Attachments
- Risk Assessment
- Test Sheets
- Annexure-1: Motorized Dampers & Fire/ Smoke (MD/ MSFD) Pre-Commissioning Check Sheet.
- Annexure-2: Motorized Dampers & Fire/ Smoke (MD/ MSFD) Commissioning Check Sheet.
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