Additional information to be supplied for Type B appliance in gas installation
Schedule 1 Additional information to be supplied for Type B appliance in gas installation
Regulation 53(2)
1. The technical standards to which the appliance is to be designed, manufactured, installed, commissioned and operated.
2. Appliance details, including the following:
the manufacturer's name;
identification of the model of appliance;
the nominal gas consumption (MJ/h) of the appliance;
the gas type;
the maximum and minimum gas supply pressures;
the purge times;
the gas pressure at the burner head for the nominal gas consumption;
the combustion chamber volume;
the purge volume, being the total volume swept from the entry of the purge medium to the point of emission including interconnecting duct work;
the serial number of the appliance;
the date of manufacture of the appliance.
3. Valve train schematic diagram: A schematic diagram clearly indicating –
all components (including brand and model); and
rated working pressure of all components; and
proposed settings of all adjustable devices.
4. Electrical circuit diagram: A circuit diagram in ladder-logic format clearly indicating –
safety and control circuits; and
details of all major components (including brand and model); and
the method of operation of all major components.
5. Purge time calculation. Calculation of the time required to purge the appliance in accordance with AS 3814.
6. Safe-start gas rate. Where required by AS 3814, calculation of the safe-start gas rate or the critical time for ignition or critical energy.
7. Explosion relief area and dilution air flow rate (where relevant). If the appliance process involves solvents or dusts, and where required by AS 3814, provision of details of, and calculations for, explosion relief area and dilution air flow rates.
8. Details of flueing.
9. Details of ventilation.
10. Supporting evidence that the appliance’s design, manufacture, installation and commissioning conform to any applicable standards, codes or determinations.
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