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AS 1056.1-1991 Amdt 5-2005 Storage water heaters.pdf

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Table of Contents
SECTION 1 - SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.5 COMPLIANCE WITH OTHER SPECIFICATIONS
1.6 RATED HOT-WATER DELIVERY/CAPACITY
1.7 FACILITIES FOR MAINTENANCE
1.8 CLEANLINESS IN MANUFACTURE
SECTION 2 - CONSTRUCTION REQUIREMENTS
2.1 FIXING OF HEATING UNITS TO SHELL
2.2 SACRIFICIAL ANODES
2.3 FITTINGS IN CONTACT WITH WATER
2.4 THERMAL INSULATION
2.5 CORSET
2.6 CASING
2.7 HYDROSTATIC OVERPRESSURE WITHSTAND
2.8 PRESSURE FATIGUE WITHSTAND (OF AN UNVENTED CONTAINER)
2.9 EXTERNAL TORQUE WITHSTAND
SECTION 3 - ELECTRICAL COMPONENTS
3.1 HEATING UNITS
3.2 THERMOSTATS AND THERMAL CUTOUTS
SECTION 4 FEED TANKS AND WATER FITTINGS
4.1 ATTACHED FEED TANK
4.2 WATER FITTINGS
4.3 WATER PIPES
4.4 DRAINAGE FACILITIES
SECTION 5 - MARKING AND INSTALLATION INSTRUCTIONS
5.1 MARKING
5.2 INSTRUCTIONS FOR INSTALLATION AND MAINTENANCE
SECTION 6 - DETERMINATION OF COMPLIANCE
6.1 TYPE TESTS
6.2 ROUTINE TESTS
APPENDICES
A INFORMATION TO BE SUPPLIED WITH ENQUIRY AND ORDER
B METHOD FOR THE DETERMINATION OF HEAT LOSS
C METHOD FOR THE DETERMINATION OF HOT-WATER DELIVERY
D TYPICAL PRODUCT SPECIFICATION FOR A WATER HEATER

Abstract
Specifies general construction and performance requirements for electric storage water heaters of 25 L to 630 L rated hot water delivery. (Requirements for gas water heaters are specified only by reference to Code AG 102 published by AGA/ALPGA.) To be read in conjunction with AS 1056.2 or AS 1056.3 as appropriate.

Scope
This Standard specifies requirements for:
 (a) Storage water heaters heated solely by electricity (hereinafter called 'water heaters') having rated hot-water deliveries within the range 25 L to 630 L and having heating units of the tubular-sheathed immersion type or the bobbin type.
 
NOTES: Where non-electric supplementary heating, e.g. from a solar collector or a slow combustion stove, is used,additional requirements may be necessary.
 (b) Gas storage water heaters by cross-reference to Code AG 102 published by The Australian Gas Association and the Australian Liquefied Petroleum Gas Association (see Clauses 1.3.2 and 1.5.2).
 
This Standard does not apply to heat-exchange water heaters (see AS 1361).
 
NOTES:
 1. Water heaters having deliveries in excess of 630 L generally have special requirements. Intending purchasers of such water heaters are advised to include in their specification such requirements of this Standard as are relevant to their needs.
 2. For the installation of household type hot-water systems, see AS 3500.4.
 3. Information to be supplied with enquiries and orders for electric water heaters is given in Appendix A.

Application
Specifies general construction and performance requirements for electric storage water heaters of 25 L to 630 L rated hot water delivery. (Requirements for gas water heaters are specified only by reference to Code AG 102 published by AGA/ALPGA.) To be read in conjunction with AS 1056.2 or AS 1056.3 as appropriate.

History
AS 1056.1 first published as part of AS C316-1957.
 Second edition 1965.
 Third edition 1970.
 AS C316-1970 revised and redesignated AS 1056-1972.
 AS C316-1970 withdrawn 1974.
 Second edition AS 1056-1977.
 AS 1056-1977 revised and redesignated in part as AS 1056.1-1985.
 Second edition 1991.


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