Old Ref No. New Ref. No. Major Changes

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1 MAJOR CHANGES IN THE GENERAL SPECIFICATION FOR AIR-CONDITIONING, REFRIGERATION, VENTILATION AND CENTRAL MONITORING & CONTROL SYSTEM INSTALLATION IN GOVERNMENT BUILDINGS OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION 2012 EDITION Old Ref No. New Ref. No. Major Changes The changes in the Corrigendum No. GSAC01 for the General Specification for Air-conditioning, Refrigeration, Ventilation and Central Monitoring & Control System Installation in Government Buildings of the Hong Kong Special Administrative Region 2007 Edition are incorporated into the 2012 Edition. PART A SCOPE AND GENERAL REQUIREMENTS SECTION A1 SCOPE OF SPECIFICATION A1.3.1 A1.3.1 To delete Terms and Definitions HCF. SECTION A2 STATUTORY OBLIGATIONS AND OTHER REQUIREMENTS A2.1.2 (d), (e) A2.1.2 (d) To change the Code of Practice for Energy Efficiency of Electrical Installations and Code of Practice for Energy Efficiency of Air Conditioning Installations to Code of Practice for Energy Efficiency of Building Services Installations in Building. A2.1.2 (f) (q) A2.1.2 (e) (p) To re-number the sub-clause. A2.1.2(i) A2.1.2(h) To delete the edition of the standard. SECTION A3 EXECUTION OF WORKS Page 1 of 9

2 A3.7 A3.7 To add the sample board requirements for submission items. A A To add a new requirement for submission of label schedule and standardize the label format including Chinese translations among different projects. A A To change the edition of ISO9001 to SECTION A4 DRAWINGS AND MANUALS A4.2.2 A4.2.2 To change As-installed record drawings to As-built record drawings. PART B - GENERAL TECHNICAL REQUIREMENTS (INSTALLATION METHODOLOGY) SECTION B2 DUCTWORK B2.10 B2.10 To change the Code of Practice for Energy Efficiency of Air Conditioning Installations to Code of Practice for Energy Efficiency of Building Services Installations in Building. SECTION B4 AUTOMATIC CONTROL B4.1.6 B4.1.6 To change the heading Control of Primary Air Intake Unit (PAU) to Control of Primary Air Handling Unit (PAU). SECTION B5 CENTRAL CONTROL AND MONITORING SYSTEM (CCMS) B5.1.2(i) B5.1.2(i) To change the edition of ISO/IEC 1989 to SECTION B6 CENTRAL REFRIGERATION MACHINE, DIRECT EXPANSION EVAPORATORS AND HEAT REJECTION PLANT Page 2 of 9

3 B6.2 B6.2 To change the edition of BS EN to SECTION B8 NOISE AND VIBRATION CONTROL B8.5.5 B8.5.5 To change the edition of PD 5500 to B8.7 B8.7 To change the edition of ASTM C to SECTION B9 PIPEWORK, VALVES, COCKS AND STRAINERS B9.3.2 and B9.8.1 B9.3.2 and B9.8.1 To change the edition of ISO 7-1 to SECTION B11 THERMAL INSULATION B B To change the heading CFC, HCFC and HCF free Polyurethane Foam Insulation to CFC, HCFC and HFC free Polyurethane Foam Insulation. PART C GENERAL TECHNICAL REQUIREMENTS (MATERIAL AND EQUIPMENT SPECIFICATION) SECTION C1 AIR CLEANING EQUIPMENT C1.2.1(c), C1.11 and C1.13 C1.2.1(c), C1.11 and C1.13 To change the edition of UL 586 to C1.2.1(e) C1.2.1(e) To change the edition of BS EN to BS EN to 2009 and rename the description of the standards as High Efficiency Air Filters (EPA, HEPA and ULPA). Page 3 of 9

4 C1.2.1(e) C1.2.1(e) To change the edition of BS EN to BS EN to C1.2.2(b) C1.2.2(b) To change the edition of BS to C1.16 C1.16 To change the editions of BS EN , BS EN and BS EN to C1.16 C1.16 To change BS EN :2005 to BS EN :2005. C1.17 C1.17 To change the edition of UL 1598 to C1.17 C1.17 To change the edition of UL 153 to SECTION C2 DUCTWORK AND ACCESSORIES C2.4 and C2.8 C2.4 and C2.8 To change the edition of BS to C2.6.2 C2.6.2 To change the edition of ASTM G21-96 to 2009 C2.6.2 C2.6.2 To change the edition of NFPA-90B to C2.6.2 and C C2.6.2 and C To change the edition of NFPA-90A to SECTION C3 AIR HANDLING AND TREATMENT EQUIPMENT C3.1.4(b) C3.1.4(b) To change the edition of BS ISO to Page 4 of 9

5 C3.6.3(b) C3.6.3(b) To change ARI 410:2001 to AHRI 410:2001. C (a) C3.13.1(a) To change the edition of BS 5220 to To change the edition of NFPA-90A to C (b) To change the edition BS to To change ISO/TR to C3.15(a) C3.15(a) To change the Code of Practice for Energy Efficiency of Air Conditioning Installations to Code of Practice for Energy Efficiency of Building Services Installations in Building. SECTION C5 CENTRAL CONTROL AND MONITORING SYSTEM (CCMS) C5.3(h) C5.3(h) To change the edition of ISO/IEC 1989 to SECTION C6 CENTRAL REFRIGERATION MACHINE, DIRECT EXPANSION EVAPORATOR AND HEAT REJECTION PLANT C C To change CT STD 201:2009 to CTI STD 201:2009. C C To change the edition of BS EN to Page 5 of 9

6 C C To change the edition of ANSI/ASHRAE 15 to C C To change the edition of PD 5500 to SECTION C8 NOISE AND VIBRATION CONTROL C8.5.2 C8.5.2 To change the edition of ISO 7-1 to C8.5.2 C8.5.2 To change the edition of PD 5500 to C8.7 and C8.9 C8.7 and C8.9 To change the edition of UL 723 to C8.7 and C C8.7 and C To change the edition of ASTM C423 to 09a. C8.7 and C8.9 C8.7 and C8.9 To change the edition of ASTM E84 to 09c. C8.8, C8.10 and C C8.8, C and C8.10 To change the edition of ASTM E90 to 09. SECTION C9 PIPE MATERIAL, VALVES, COCKS AND STRAINERS C9.5 (Note 4) C9.5 (Note 4) To change the edition of BS EN 969 to C9.5 (Note 4) C9.5 (Note 4) To change the edition of BS EN 598 to C9.5(c) C9.5(c) To change the edition of ISO 7-1 to Page 6 of 9

7 C9.5(c) C9.5(c) To change the edition of ISO 6708 to C9.5(c) C9.5(c) To change the edition of ISO 7268 to SECTION C10 SYSTEM MONITORING INSTRUMENT C10.8 C10.8 To change the editions of BS EN , BS EN and BS EN to C10.8 C10.8 To change BS EN :2006 to BS EN :2005. SECTION C11 THERMAL INSULATION C and C11.1.2(b) C and C11.1.2(b) To change the edition of BS to C11.2.1(d) C11.2.1(d) To change BS EN 4590:1995 to BS EN ISO 4590:2003. C11.2.1(e), C11.2.1(f) and C11.2.8(e) C11.2.1(e), C11.2.1(f) and C11.2.8(e) To change the edition of BS EN ISO 4590 to C11.2.1(e) and C11.2.8(e) C11.2.1(e) and C11.2.8(e) To change the edition of ISO 4590 to C11.4.3(b) C11.4.3(b) To change the edition of ASTM D882 to 09. SECTION C13 WATER HANDLING EQUIPMENT Page 7 of 9

8 C13.2.3(b)(ii) C13.2.3(b)(ii) To change the edition of ISO 2892 to C13.13 C13.13 To rename the clause title to Sea Water Strainers and Travelling Band Screens. PART E - ENERGY EFFICIENCY AND ENERGY CONSERVATION E.1 E.1 To change Codes of Practice for Energy Efficiency of Air Conditioning Installations and of Electrical Installations to Code of Practice for Energy Efficiency of Building Services Installations in Building. E.2 E.2 To change Codes of Practice for Energy Efficiency of Air Conditioning Installations and of Electrical Installations to Code of Practice for Energy Efficiency of Building Services Installations in Building. E.3 E.3 To change Codes of Practice for Energy Efficiency of Air Conditioning Installations to Code of Practice for Energy Efficiency of Building Services Installations in Building. PART G PAINTING, FINISHING AND PROTECTIVE TREATMENT G.1 G.1 To delete the edition of the General Specification for Building. G.1 G.1 To change General Specification for the Air-Conditioning, Refrigeration, Ventilation and Central Monitoring and Control System installation to this General Specification. PART H INSPECTION, TESTING AND COMMISSIONING Page 8 of 9

9 H.1.1(b) H.1.1(b) To change Building Services Branch Testing and Commissioning Procedure for Air-conditioning, Refrigeration, Ventilation and Central Monitoring & Control System Installation in Government Buildings to Testing and Commissioning Procedure for Air-conditioning, Refrigeration, Ventilation and Central Monitoring & Control System Installation in Government Buildings of the Hong Kong Special Administration Region issued by BSB, ArchSD. H.1.3(a) H.1.3(a) To rename the title of the sub-clause to Master Programme of Testing and Commissioning Works. H.4.1 H.4.1 To change the edition of ISO 5136 to H.4.4 H.4.4 To change BS EN :1999 to IEC :2004. H.4.6 H.4.6 To change the edition of BS EN :2006. H.4.6 H.4.6 To change the edition of BS EN to H.4.7 H.4.7 To change the edition of BS EN to 2009 Page 9 of 9