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It explains interpretations and abbreviations, specifies application scope, and sets technical compliance approaches. The document covers energy efficiency requirements for lighting, air-conditioning, electrical installations, and lift/escalator installations, and also introduces a performance-based approach. Guidance includes design-condition requirements, control and metering considerations, and methods for calculating total energy and power factor.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/code-of-practice-for-energy-efficiency-of-building-services-installation/439000/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/code-of-practice-for-energy-efficiency-of-building-services-installation/439000.png","ImageObject",300,407,{"name":92,"@type":93},"Bintang","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-07","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of this Code of Practice for energy efficiency?","Question",{"text":112,"@type":113},"It sets minimum energy efficiency requirements and provides technical guidance so building services installations can satisfy the Ordinance’s relevant requirements in technical aspects.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which installation areas are covered by the code?",{"text":117,"@type":113},"It includes lighting installation, air-conditioning installation, electrical installation, and lift and escalator installation, along with major retrofitting works under specified sections.",{"name":119,"@type":110,"acceptedAnswer":120},"How does the code support compliance: prescriptive requirements or performance-based approach?",{"text":121,"@type":113},"It provides technical compliance requirements for defined installations and also includes a performance-based approach that compares design energy with an energy budget.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},439000,1791174815,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962085564381,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","Code of Practice for Energy Efficiency of Building Services Installation  \n(back blank page of front cover)  \nCode of Practice for Energy Efficiency of Building Services Installation  \nTable of Contents  Page No.  \n1. Introduction 1  \n2. Interpretations and Abbreviations 2  \n2.1 Interpretations 2  \n2.2 Abbreviations 10  \n3. Application 11  \n3.1 Scope of Application 11  \n3.2 Limit of Scope of Application 11  \n4. Technical Compliance with the Ordinance 12  \n4.1 Building Services Installations in a Prescribed Building in respect of which 12  \na Consent to the Commencement of Building Works for Superstructure Construction is given after the commencement of Part 2 and Part 3 of the Ordinance  \n4.2 Building Services Installations in a Prescribed Building in respect of which 12 a Consent to the Commencement of Building Works for Superstructure Construction is given on or before the commencement of Part 2 and Part 3 of the Ordinance  \n4.3 Energy Efficiency Requirements at Design Conditions 12  \n4.4 Requirements on Maintaining of Design Standard 13  \n4.5 Demonstration of Compliance 13  \n5. Energy Efficiency Requirements for Lighting Installation 14  \n5.1 Scope of Application 14  \n5.2 General Approach 14  \n5.3 Definitions 14  \n5.4 Lighting Power Density 14  \n5.5 Lighting Control Point 17  \n5.6 Automatic Lighting Control 18  \n5.7 Simplified Trade-off Scheme for Lighting Power Density 21  \n6. Energy Efficiency Requirements for Air Conditioning Installation 22  \n6.1 Scope of Application 22  \n6.2 General Approach 22  \n6.3 Definitions 23  \n6.4 System Load Calculation 23  \n6.5 Separate Air Distribution System for Process Zone 23  \n6.6 Air Distribution Ductwork Leakage Limit 24  \n6.7 Air Distribution System Fan Power 24  \n6.8 Pumping System Variable Flow 26  \n6.9 Frictional Loss of Water Piping System 26  \n6.10 System Control 27  \n6.10.1 Temperature Control 27  \n6.10.2 Humidity Control 27  \n6.10.3 Zone Control 28  \n6.10.4 Off-hours Control 29  \n6.10.5 Isolation of Zones 30  \n6.10.6 Control of VAV Air Distribution System 31  \n6.10.7 Demand Control Ventilation 31  \n6.11 Thermal Insulation 32  \n6.12 Air Conditioning Equipment Efficiency 35  \n6.13 Energy Metering 41  \n6.14 Control, Monitoring and Optimisation 42  \n6.14.1 Direct Digital Control (DDC) 42  \n6.14.2 Chilled Water Plant Control System 43  \n6.14.3 Chilled Water Temperature Reset 43  \n6.14.4 Chilled Water Plant Optimisation Control 43  \n7. Energy Efficiency Requirements for Electrical Installation 44  \n7.1 Scope of Application 44  \n7.2 General Approach 44  \n7.3 Definitions 45  \n7.4 Power Distribution Loss 45  \n7.4.1 Distribution Transformer 45  \n7.4.2 Main Circuit 45  \n7.4.3 Feeder Circuit 46  \n7.4.4 Sub-main Circuit 46  \n7.4.5 Final Circuit 46  \n7.5 Motor Installation 46  \n7.5.1 Motor Efficiency 46  \n7.5.2 Motor Sizing 47  \n7.5.3 Motor for Air-conditioning Equipment, Distribution Transformer and Lift and Escalator 48  \n7.6 Power Quality 48  \n7.6.1 Total Power Factor 48  \n7.6.2 Total Harmonic distortion 49  \n7.6.3 Balancing of Single-phase Loads 49  \n7.7 Metering and Monitoring Facilities 50  \n8. Energy Efficiency Requirements for Lift and Escalator Installation 52  \n8.1 Scope of Application 52  \n8.2 General Approach 53  \n8.3 Definitions 53  \n8.4 Electrical Power 53  \n8.4.1 Traction Drive Lift 53  \n8.4.2 Hydraulic Lift 56  \n8.4.3 Escalator 56  \n8.4.4 Passenger Conveyor 58  \n8.5 Utilization of Power 59  \n8.5.1 Total Power Factor 59  \n8.5.2 Lift Decoration Load 59  \n8.5.3 Lift Parking Mode 60  \n8.5.4 Lift Ventilation and Air-conditioning 60  \n8.5.5 Lift Regenerative Braking 60  \n8.5.6 Lift Car Lighting 60  \n8.5.7 Automatic Speed Reduction of Escalator 61  \n8.6 Total Harmonic Distortion 61  \n8.7 Metering and Monitoring Facilities 62  \n9. Performance-based Approach 64  \n9.1 Scope of Application 64  \n9.2 General Approach 64  \n9.3 Definitions 64  \n9.4 Basic Requirements 64  \n9.5 Comparison of Design Energy and Energy Budget 65  \n10. Energy Efficiency Requirements for Major Retrofitting Works 68","cbCaicp3AZEGflng","https://ap.wps.com/l/cbCaicp3AZEGflng","pdf",5225501,96,"English","# Introduction\n# Interpretations and Abbreviations\n# Application\n# Technical Compliance with the Ordinance\n## Energy Efficiency Requirements for Lighting Installation\n## Energy Efficiency Requirements for Air Conditioning Installation\n## Energy Efficiency Requirements for Electrical Installation\n## Energy Efficiency Requirements for Lift and Escalator Installation\n## Performance-based Approach\n## Energy Efficiency Requirements for Major Retrofitting Works","[{\"question\":\"What is the purpose of this Code of Practice for energy efficiency?\",\"answer\":\"It sets minimum energy efficiency requirements and provides technical guidance so building services installations can satisfy the Ordinance’s relevant requirements in technical aspects.\"},{\"question\":\"Which installation areas are covered by the code?\",\"answer\":\"It includes lighting installation, air-conditioning installation, electrical installation, and lift and escalator installation, along with major retrofitting works under specified sections.\"},{\"question\":\"How does the code support compliance: prescriptive requirements or performance-based approach?\",\"answer\":\"It provides technical compliance requirements for defined installations and also includes a performance-based approach that compares design energy with an energy budget.\"}]","Code of Practice for Energy Efficiency of Building Services Installation | PDF",1790687124,242]