GUIDE NOTE: Refer to Design Guide sections DG/ HYDRAULICS GENERALLY , DG DRAINAGE (& TRADE WASTE) .
As per current NATSPEC 0813 Water Heaters except as follows:
In accordance with the NSW Government Resource Efficiency Policy, all fixtures and fittings must be at least the average WELS star rating by product type. Where WELS rating is not available, use the alternative WaterMark rating scheme.
All new water-using appliances must be at least 0.5 stars above the average Water Efficiency Labelling and Standards (WELS) star rating by product type, except toilets and urinals, which must be purchased at the average WELS star rating.
As per current NATSPEC 0813.2 Products.
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Property
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A
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B
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C
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Water heater location
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Water heater type
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Water storage volume (litres)
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Rated heated water recovery (litres) at a rise of (°C)
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Storage vessel construction
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Maximum thermostat setting (°C)
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Minimum thermostat setting (°C)
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Maximum water supply pressure (kPa)
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Minimum working water pressure (kPa)
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Maximum allowable stand-by heat loss (kW.h/24h)
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Heating elements (number x watts)
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Tariff arrangements
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Method of control
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Number of sacrificial anodes in steel vessels
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Property
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A
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B
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C
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Water heater type
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Water storage volume (litres)
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Rated heated water recovery (litres) at a rise of (°C)
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Storage vessel and heat exchanger construction
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Flue damper required
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Maximum water supply pressure (kPa)
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Minimum working water pressure (kPa)
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Method of control
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Gas input (MJ/h)
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Number of sacrificial anodes in steel vessels
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Property
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A
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B
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C
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Water heater type
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Water storage volume (litres)
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Rated heated water recovery (litres) at a rise of (°C)
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System
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Number of panels
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Solar collector construction
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Collector performance
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Location of panels
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Storage vessel construction
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Circulation pump type
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Maximum water supply pressure (kPa)
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Minimum working water pressure (kPa)
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Auxiliary heating unit
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Method of control
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Fittings
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Boost energy source
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Number of sacrificial anodes in steel vessels
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Property
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A
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B
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C
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Water heater type
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Water storage volume (litres)
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Storage vessel construction
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Rated heated water recovery (litres) at a rise of (°C)
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Maximum water supply pressure (kPa)
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Minimum working water pressure (kPa)
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Method of control
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Fittings
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Maximum rated input power (watts)
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Coefficient of performance (COP)
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Refrigerant
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Number of sacrificial anodes in steel vessels
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Property
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A
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B
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C
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Water heater type
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Energy source
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Gas input (MJ/hr)
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Flue type
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Electrical input (kW)
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Water supply temperature (°C)
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Minimum flow rate (25°C water temperature rise)
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Minimum flow rate (L/s)
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Maximum water supply pressure (kPa)
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Minimum working water pressure (kPa)
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Casing material
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Property
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A
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B
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C
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Water storage container type
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Water storage volume (litres)
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Orientation
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Shell material
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Maximum water supply pressure (kPa)
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