This Code applies to the facilities, technology and inspection for manufacturing of gas hot water boilers of conventional flue type and balanced flue type (hereinafter referred to as “boilers”) which come under the following (1) and (2) among the combustion equipment in conformity to the Enforcement Regulation of the Safety Control and Business of Liquefied Petroleum Gas Act (hereinafter referred to as “Enforcement Regulation”), Table 3, No. 10 and Table 7, No.4, j <Revised on November 4, 2015>:
(1) Boilers of which total heat input is not over 70 kW(60,000 kcal/h) on the basis of gross heating value (gross heating value based on 0℃ and 1 atm; hereinafter the same shall apply unless otherwise specified), and
(2) Boilers of which gas working pressure is not over 3.3 kPa.
1. General 1
1.1 Scope 1
1.2 Validity of Code 1
1.3 Reference Codes and Standards 1
1.3.1 Inspection standard for new technology products 2
1.3.2 Manufacturing registration standard for foreign products <Newly established on June 26, 2012, Revised November 4, 2015> 2
1.4 Definitions 2
1.5 Application of Codes and Standards 3
1.6 Interim Measures 3
1.6.1 Design stage inspection <Revised on August 13, 2012> 3
1.6.2 Production stage inspection <Revised on August 13, 2012> 3
1.6.3 Interim measure for marking of piping connection parts 3
2. Manufacturing Standard 4
2.1 Manufacturing facilities 4
2.2 Inspection Facilities 4
3. Manufacturing Technology Standard 5
3.1 Materials 5
3.2 Construction and Dimensions 7
3.3 Devices 12
3.3.1 Power failure safety device 12
3.3.2 Head wind prevention device 13
3.3.3 Flame supervision device 13
3.3.4 Other devices 13
3.4 Performance 14
3.4.1 Product performance 14
3.4.2 Material performance (currently not used) 15
3.4.3 Operating performance 15
3.5 Heat Treatment (currently not used) 22
3.6 Marking 22
3.6.1 Product marking 22
3.6.2 Acceptance mark 23
3.6.3 Enclosure of manual 23
3.6.4 Marking of gas safety instructions 24
3.6.5 Attachment of piping marks and installation signboard 24
4. Inspection Standard 25
4.1 Kinds of Inspections 25
4.1.1 Manufacturing installation inspection 25
4.1.2 Product inspection 25
4.2 Object Audit of Process Inspection. 27
4.2.1 Application for audit 27
4.2.2 Audit method 27
4.2.3 Adjudication committee 28
4.3 Inspection Items 29
4.3.1 Manufacturing installation inspection 29
4.3.2 Product inspection 29
4.4 Inspection Method 32
4.4.1 Manufacturing installation inspection 32
4.4.2 Product inspection 32
4.5 Other Inspection Standards 36
4.5.1 Inspection of imported products 36
4.5.2 Partial omission of inspection 36
4.5.3 Disposal of rejected products (not applicable) 36
4.5.4 Detailed inspection standards 36
Appendix A General Standard for Operation of Quality Control System for Gas Appliance Manufacturing Plants 37
