Table of Contents

Introduction
1 Scope
2 Normative references
3 Classification
3.1 Classification according to burning systems
3.2 Classification according to draft systems
3.3 Classification according to systems to use divisions
3.4 Classification according to water supply systems
3.5 Classification according to heating systems
3.6 Classification according to circulation systems of
bath boiler path
4 Performance
4.1 Usability
4.2 General quality performance
4.3 Quality performance as equipment for water service
5 Construction
5.1 General construction
5.2 Construction of boilers according to burning systems
5.3 Construction of boilers according to draft systems
5.4 Construction of boilers according to water supply systems
5.5 Construction of oil tank
5.6 Construction of electrical equipment, wiring parts
5.7 Construction of safety device
5.8 Construction of boil-dry safety mechanism
6 Materials
7 Processing method
8 Appearance
8.1 Appearance
8.2 Rust prevention
9 Exhaust terminal and supply exhaust tube
9.1 Exhaust terminal
9.2 Supply and exhaust tube
10 Test methods
10.1 Test methods in general
10.2 Withstand pressure performance test
10.3 Low temperature resistance performance test
10.4 Water hammer critical performance test
10.5 Backflow prevention performance test
10.6 Negative pressure breaking performance test
10.7 Leaching performance test
11 Inspection
11.1 Type inspection
11.2 Product inspection
12 Marking
12.1 Marking of ratings
12.2 Indication of handling instructions
12.3 Indication on cock, knob, etc.
12.4 Indication of switches for ignition and extinction,
or operation and stoppage
12.5 Indication of fuel level indicator
12.6 Indication on oil tank
12.7 Indication on water piping connection part
12.8 Indication of pressure reducing valve and relief
valve to be used
12.9 Indication of terminal for earthing
12.10 Indication of passing type inspection
13 Instruction manual

Abstract

Specifies the oil burning water boilers used for hot-water supply, heating, etc. which use kerosene, light oil or heavy oil as fuel, whose working pressure is 0.1 MPa or lower and heating surface area is 4 square meters or smaller.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Japanese Standards Association
Pages
ISBN
Supersedes	JIS S 3021:2004