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AS 4619-2004 gas appliance thermostats

Standard Number:  AS 4619-2004
Title:  gas appliance thermostats
Language:  English
Replacing Standard:  AG 203-1998

Publication Date:  2004/11/24
Status:  Current
Publisher:  Australia Standards(AS)
Price:  
Number of Pages:33P.;A4  

Description:Specifies the uniform minimum requirements for manufacturers, designers, regulatory authorities, testing laboratories and similar organizations for the safety, performance and use of gas appliance thermostats up to 50 mm size. These gas appliance thermos  
Catalog:Document Contents<" style="border-width:0;" />Document Contents
AS 4619-2004 GAS APPLIANCE THERMOSTATS
PREFACE
CONTENTS
SECTION 1 SCOPE, CLASSIFICATION AND DEFINITIONS
1.1 SCOPE
1.2 CLASSIFICATION
1.2.1 Mode
1.2.2 Sensor
1.3 DEFINITIONS
1.3.1 Authority
1.3.2 Certified
1.3.3 Certifying body
1.3.4 Calibration
1.3.5 Combination gas control
1.3.6 Gas
1.3.7 Rated working pressure
1.3.8 Technical regulator
1.3.9 Temperature sensing element
1.3.10 Thermostat
1.3.11 Thermostat bypass
1.3.12 Thermostat valve
SECTION 2 DESIGN AND CONSTRUCTION
2.1 MATERIALS
2.1.1 Continuity of satisfactory operation
2.1.2 Suitability of materials for conditions of use
2.1.3 Materials in contact with gas
2.1.4 Melting point of materials
2.1.5 Copper containing alloys
2.1.6 Component parts materials selected to appropriate Standards
2.2 CONSTRUCTION
2.2.1 Continuity of satisfactory operation
2.2.2 Castings and hot pressings
2.2.3 Sealing of porous castings or cracks
2.2.4 Assembled valves to be clean
2.2.5 Accidental displacement of parts
2.2.6 Factory calibration means sealed
2.2.7 Attachment of knobs, handles, dials and pointers
2.2.8 Springs
2.2.9 Securing of parts together
2.2.10 Sharp edges
2.2.11 Means of limiting the travel of manual valves
2.2.12 Holes for assembly or mounting
2.2.13 Permanent sealing of non-functional holes
2.2.14 Self-tapping screws
2.2.15 Construction of parts not covered by this Standard
2.2.16 Tightening of a gland or any other adjustments
2.3 DESIGN
2.3.1 Safety device cannot be overridden
2.3.2 Accessibility of integral parts
2.3.3 Adjusting devices
2.3.4 Locking device
2.3.5 Components requiring servicing
2.3.6 Special tools not required for servicing or replacement
2.3.7 Knobs and movable dials
2.3.8 Valves
2.3.9 Connections
2.3.10 Pressure test points
2.3.11 Thermostats
2.3.12 Location or enclosure of electrical parts
2.3.13 Separation of operating parts from stowed wiring
2.4 MARKINGS
2.4.1 General
2.4.2 Marking of electrical connections
2.4.3 Markings of control knobs
2.4.4 Durability of markings
2.5 INSTRUCTIONS
2.5.1 General
SECTION 3 PERFORMANCE REQUIREMENTS
3.1 GENERAL
3.1.1 Satisfactory performance in all mounting positions
3.1.2 Satisfactory performance over declared temperature range
3.1.3 Thermostats-?Fail safe? type
3.1.4 Effort to open fully, close or reset valve
3.1.5 Torque or force to open or close valve
3.2 GAS LEAKAGE
3.2.1 External leakage
3.2.2 Internal leakage
3.2.3 Liquid immersion thermostat leakage
3.3 FLOW RATE
3.3.1 Flow rate for a given pressure
3.3.2 Maximum bypass rate
3.4 MECHANICAL STRENGTH
3.4.1 Device capable of withstanding listed torque values
3.4.2 Device capable of withstanding listed bending moments
3.5 OPERATING CHARACTERISTICS
3.5.1 Maximum and minimum operating temperatures
3.5.2 Operating temperature tolerances
3.5.3 Thermostat tolerance after durability testing
3.6 OTHER FUNCTIONS
3.6.1 Compliance with other Standards
3.7 DURABILITY
3.7.1 Cycling test-Liquid immersion thermostats
3.7.2 Cycling test-Gaseous immersion and surface contact thermostats
3.7.3 Heat resistance
APPENDIX A - FIGURES A1-A3
APPENDIX B - METHODS OF TEST
B1 TEST MEDIUM AND GASES
B1.1 TESTING MEDIUM
B1.2 TEST GASES
B2 SAMPLES
B3 LUBRICANTS
B4 M.O.T. 2.1.4 ? 85 HEAT RESISTANCE
B4.1 SCOPE
B4.2 METHOD
B4.3 APPARATUS
B4.4 PROCEDURE
B4.5 RESULTS
B5 M.O.T. 2.4.4 ? 95 MARKINGS AND LABELS
B5.1 SCOPE
B5.2 METHOD
B5.3 APPARATUS
B5.4 MATERIALS
B5.5 PROCEDURE
B5.6 RESULT
B6 M.O.T. 3.2.1 ? 02 EXTERNAL LEAKAGE
B6.1 SCOPE
B6.2 METHOD
B6.3 APPARATUS
B6.4 MATERIALS
B6.5 PREPARATION OF APPARATUS
B6.6 PROCEDURE
B6.7 RESULT
B7 M.O.T. 3.2.2 ? 02 INTERNAL LEAKAGE
B7.1 SCOPE
B7.2 METHOD
B7.3 APPARATUS
B7.4 MATERIALS
B7.5 PREPARATION FOR TEST
B7.6 PROCEDURE
B7.7 RESULT
B8 M.O.T. 3.2.3 ? 85 LIQUID IMMERSION THERMOSTAT-LIQUID LEAKAGE
B8.1 SCOPE
B8.2 METHOD
B8.3 APPARATUS
B8.4 MATERIALS
B8.5 PREPARATION OF APPARATUS
B8.6 PROCEDURE
B8.7 RESULT
B9 M.O.T. 3.3.1 ? 85 FLOW RATE
B9.1 SCOPE
B9.2 METHOD
B9.3 APPARATUS
B9.4 MATERIALS
B9.5 PREPARATION OF APPARATUS
B9.6 PROCEDURE
B9.7 CALCULATIONS AND REPORTING
B9.8 RESULT
B10 M.O.T. 3.3.2 ? 95 BYPASS FLOW RATE
B10.1 SCOPE
B10.2 METHOD
B10.3 APPARATUS
B10.4 MATERIALS
B10.5 PREPARATION OF APPARATUS
B10.6 PROCEDURE
B10.7 RESULT
B11 M.O.T. 3.4.1 ? 85 TORQUE TEST
B11.1 SCOPE
B11.2 METHOD
B11.3 APPARATUS
B11.4 MATERIALS
B11.5 PREPARATION OF APPARATUS
B11.6 PROCEDURE
B11.7 RESULT
B12 M.O.T. 3.4.2 ? 85 BENDING MOMENT TEST
B12.1 SCOPE
B12.2 METHOD
B12.3 APPARATUS
B12.4 PREPARATION OF APPARATUS
B12.5 PROCEDURE
B12.6 RESULT
B13 M.O.T. 3.5.1 ? 95 MAXIMUM AND MINIMUM SET POINTS
B13.1 SCOPE
B13.2 METHOD
B13.3 APPARATUS
B13.4 MATERIALS
B13.5 PREPARATION
B13.6 PROCEDURE
B13.7 RESULT
B14 M.O.T. 3.5.2 ? 95 CALIBRATION POINT CHECK AFTER SETTING THE THERMOSTAT
B14.1 SCOPE
B14.2 METHOD
B14.3 APPARATUS
B14.4 MATERIALS
B14.5 PREPARATION OF APPARATUS
B14.6 PROCEDURE
B14.7 RESULT
B15 M.O.T. 3.5.3 ? 95 CALIBRATION POINT CHECK BEFORE AND AFTER DURABILITY TEST
B15.1 SCOPE
B15.2 METHOD
B15.3 APPARATUS
B15.4 MATERIALS
B15.5 PREPARATION OF APPARATUS
B15.6 PROCEDURE
B15.7 RESULT
B16 M.O.T. 3.7.1/3.7.2 ? 01 DURABILITY
B16.1 SCOPE
B16.2 METHOD
B16.3 MATERIALS
B16.4 APPARATUS
B16.5 PROCEDURE
B16.6 RESULTS
B17 M.O.T. 3.7.3 ? 85 RESISTANCE TO OVER-TEMPERATURE
B17.1 SCOPE
B17.2 METHOD
B17.3 APPARATUS
B17.4 PROCEDURE
B17.5 RESULT
APPENDIX C - LIST OF REFERENCED DOCUMENTS
  
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Tile in English:  gas appliance thermostats

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