MOS, Biện pháp thi công AHU, Method of Statement of AHU, Cách thi công AHU trong toàn nhà cao tầng, AHU trong các nhà máy, cao ốc văn phòng, Trung tâm thương mại, Cách thi công lắp đặt AHU trong các công trình lớn
PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION METHOD STATEMENT FOR AHU & PAU INSTALLATION Prepare by : SUB CONTRACTOR NAME: Hong Soon Min DATE : 23-April-2015 Checked by : POSCO NAME: POSCO NAME: NAME: DATE : DATE : DATE : Date: 23-April-15 Revision: Rev-00 MVAC Services Submission Ref :PSC-HK-MS-M-009 Approved by : Consulted by: Page HKL PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION Table of Contents INTRODUCTION 1.1 1.2 1.3 Purpose Scope Exclusions .3 GENERAL 2.1 Program 2.2 Location - Address 2.3 Approvals 2.4 Labor resources 2.5 Communications 2.6 Site Resources Required 2.7 Temporary material .4 2.8 Protection 2.9 Equipment/Tools 2.10 Hot works 2.11 Confined space works .6 2.12 Emergency & Safety Equipment .6 2.13 Materials required for installation 2.14 Schedule of drawings 2.15 Schedule of inspection 2.16 Attendees 2.17 Safety Briefing 2.18 Mitigation of Risk Actual Works Method Statement 10 3.1 Delivery and Store .10 3.2 AHU & PAU installation methodology 10 3.3 Setting to work .17 3.4 Testing 17 3.5 T&C Register 19 3.6 Reports 19 Appendix 20 4.1 Instrument catalogue and manual book .20 INTRODUCTION MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -1.1 Purpose The purpose of this Method statement is to bring the requirements from the technical specifications, drawings together in one convenient document for reference by the drafters, factory, site installers, QA/QC and all parties who are concerned with the project And this methodology to be followed for the installation of AHU & PAU 1.2 Scope This is applicable to the installation of AHU & PAU as set out in the project technical brief and the approved drawing 1.3 Exclusions Not application GENERAL 2.1 Program 2.1.1 Ensure that the shop drawing used for the references at site is approved for construction 2.1.2 Ensure that designated manpower to conduct works at site must be properly trained and well oriented by the safety engineer 2.1.3 All equipments, tools and mobile scaffolding to be used must be inspected and approved by authorized safety engineer at site 2.1.4 All staffs associated with the works shall be sufficiently experienced 2.1.5 When the workers climb up the working platform, ladder, his hands must be free 2.1.6 All materials to be used at site must be properly secured and clean 2.1.7 Working period to base on civil work and AHU & PAU installation schedule which will be attached after getting approval (Waiting for approval) 2.2 LOCATION – ADDRESS Application for Basement and all high floors 2.3 APPROVALS Materials of submission (Waiting for submission & approval) Shop drawing (Waiting for submission & approval) MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -2.4 LABOUR RESOURCES The AHU & PAU team will coordinate and carry out as below organization chart 2.5 Communications Office mobile phone or walkie-talkie will be used during working time 2.6 SITE RESOURCES REQUIRED Temporary fire protection equipment Site electric panel should be needed as site condition 2.7 TEMPORARY MATERIALS Materials cover needs to be prepared on the floor and cover AHU & PAU when needed 2.8 PROTECTION Materials cover needs to be prepared on the floor and cover AHU & PAU when needed MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -2.9 EQUIPMENT/TOOLS Ensure the availability of equipment and tools provision for AHU & PAU installation works as follows: Tape measure or folding rule Cavas sheet Silver ink marker pen Level measure Measure Laser machine Lighting Hand lighting Two-way radios 10 Hand lift 11 Pipe tube 12 Caution Tape 13 Ropes 14 Traffice control cones MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -2.10 HOT WORKS Not application 2.11 CONFINED SPACE WORKS Not application 2.12 EMERGENCY & SAFETY EQUIPMENT 1) Safety helmet 2) Safety shoes 3) Safety uniform MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -4) Hand gloves 2.13 MATERIALS REQUIRED FOR INSTALLATION AHU PAU Anchor bolt Electric forklift Wood Steel ropes Chain block Spring isolator inside AHU & PAU 2.14 SCHEDULE OF DRAWINGS MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -Refer to shop drawing layout of floors as below CLMK_MECH_PD_B1M1 CLMK_MECH_PD_0401 -CLMK_MECH_PD_1901 CLMK_MECH_PD_2001 CLMK_MECH_PD_2101 2.15 SCHEDULE OF INSPECTION/T&C FORM Refer to ITP form as the attached file in below 2.16 ATTENDEES 2.16.1 Sub-contractor manager 2.16.2 Sub-contractor site manager 2.16.3 Main contractor MEP coordinator 2.16.4 Main contractor mechanical engineer 2.16.5 HKL M&E manager 2.17 SAFETY BRIEFING 2.17.1 Safety shall be in first priority during construction, safety staff shall be present on site all the time to supervise and to remind workers to observe safety requirement Stop work order shall enforce once its dose not meet the safety requirements 2.17.2 Safety shall conform strictly observed All workers and staff on site shall be oriented of safety requirements All safety equipment such as cloths , shoes, helmet , gloves , safety belt should provide and regularly checked during construction 2.17.3 The engineer shall inspect all subcontractor tools prior to be used on site 2.17.4 Safety Supervisor shall be present for all the safety site inspection 2.17.5 For the safety of worker, grounding wire for the electric ARC process must be provided and wet cloths, protective glasses, long sleeve cloth must be imposed to worker 2.17.6 Fire extinguisher shall be provided at welding area and safety provision must done to ensure usage workability 2.17.7 Safety working with Scaffolding 2.17.7-1 All scaffolds must be erected under the supervision of a competent and experienced person- usually the construction superintendent This includes moving scaffolds from one position to another Each leg of a scaffold must be supported by and adequate footing Loose bards, bricks and other material not provide a safe, adequate base MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION 2.17.7-2 Where the working platform in more than 10 feet off the ground, the scaffold shall have guardrails installed 2.17.7-3 If people are working under the scaffold, toe boards must be used to prevent tools and materials from falling on them 2.17.7-4 Workers are not to climb the metal tubular frame of the scaffold to get the working platform Other, safer means of access must be used – a ladder or access from the building 2.17.8 Safety working with Mobile Scaffold 2.17.9 Mobile scaffolds have restricted reach unless a guy wire secures them They are more susceptible to overturning and require a smooth, level working surface A complete guardrail system must be used at elevations above 10 feet and shall be used at all working levels Scaffold should be moved when unoccupied and only by pushing from the base Wheel brakes must be set when scaffold is in use 2.18 MITIGATION OF RISK Impact damage during pouring of concrete installation to be monitored constancy white concrete is poured Correct connections or materials, ensure the final installation and connections are inspected and signed off with photographic records by MEP coordinator on site M&E staff from contractor, architect and client MVAC Services Page PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -3 ACTUAL WORKS METHOD STATEMENT 3.1 Delivery and store Materials arrived to site shall be inspected and stored according to manufacturer recommendations Materials shall be stored in the covered and dry space During the receiving materials of AHU & PAU, manpower shall be used to make AHU & PAU The AHU & PAU and accessories shall be protected and covered with polythene sheets before installing 3.2 AHU & PAU installation methodology a) Safety officers and traffic control officers to station around the cordoned off areas until the crane and transporters for AHUs & PAUs arrive b) The Hoisting Manager must be on hand to supervise the positioning of the traffic control and safety officers, and to ensure that adequate numbers of 2-way radios are distributed for communications MVAC Services Page 10 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -l) Site logistic plan at Level 20 is shown as below m) Site logistic plan at Level 21 is shown as below MVAC Services Page 14 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -n) Step by step to start installing AHU and PAU as follow Installation contents To mark AHU & PAU location Technical requirements • Related documents All connection points of pipe and duct Shop drawing are compatible with approved shop Equipemnt drawing and equipemnts catalogues Installation works should be made by Specification To move AHU & PAU to team of workers and engineers have document location where needs to install experience which need s to install • • Installation area must be safe • AHU & PAU conrete bases should be flatted and smooth, correct as shop drawing dimension • To install vibration isolators by rubber pads with 20mm thichkness and have To install AHU & PAU good elasticity • To ensure enough space to maintain in the future • To conduct to balance AHU & PAU To clean and cover AHU & PAU before starting to comnet to pipe, duct Conection works (of duct, pipe, and condensate water pipe wiring) • To let fan’s blade of AHU & PAU rotate freely to check if fan’s balde have trouble or interwind • To make condensate water pipe so that the slope of it is meet 1% direct to pipe line • All welding joints or threaded connection joints should be cleaned and painted to preotect To check and adjust AHU • All wiring joints to be tighted • Using canvas connector between duct and AHU & PAU for connection Mixing box must have access door to check, repair and maintain • MVAC Services All connection points between AHU, Page 15 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -PAU and duct maust use sealant to make closed • Condensate wate pipe must have 1% slope direct to pipe line • To make strap for condensate water pipe • To make inspection to complete installation works o) Cover each AHU & PAU module with protective canvas sheet securely strapped by PVC carton-banding straps to secure the sheets to the AHUs & PAUs p) Repeat the above sequence to the remaining AHUs & PAUs MVAC Services Page 16 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -3.3 Setting to work Not applicable 3.4 Testing/Inspection MVAC Services Page 17 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -3.5 T&C Register Not applicable 3.6 Reports MVAC Services Page 18 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION -4 APPENDIX 4.1 Instrument catalogue and manual MVAC Services Page 19 PROJECT: EXCHANGE SQUARE (STREET 106 SITE) TITLE OF WORK: METHOD STATEMENT MVAC 23 APRIL 2015 FOR AHU & PAU INSTALLATION MVAC Services Page 20