HOT WATER DELIVERY TEMPERATURE
WARNING - Water heaters can deliver water at temperatures which can cause scalding.
The installing plumber has an obligation to ensure the water heater is installed so that the
outlet delivery temperature at all sanitary fixtures complies with the requirements of AS/NZS
3500.4 and any other regulatory requirements so that potentially scalding water temperatures
are not delivered to a bathroom, en-suite or other ablution or public areas.
In order to lower the hot water delivery temperatures to your bathroom and en-suite or
any other taps to a maximum of 50ºC an approved temperature limiting device will be
required to be fitted to your pipe work.
REFER TO AS/NZS 3500.4 AND LOCAL REQUIREMENTS TO DETERMINE IF
ADDITIONAL DELIVERY TEMPERATURE CONTROL IS REQUIRED.
R26N and R26P can be pre-set at 70ºC for use ONLY as in series solar boosters.
However the delivery temperature can be 75ºC or more depending on the maximum
stored water temperature of the solar hot water system.
REFER TO AS/NZS 3500.4 AND ANY LOCAL REQUIREMENTS TO DETERMINE THE
REQUIRED SANITARY FIXTURE DELIVERY TEMPERATURES.
Temperature Limiting Devices
Tempering valves fitted to limit this heater’s delivery temperature must:
• Be marked as suitable for use with gas instantaneous water heaters
• Have a specified “minimum temperature differential” between the hot water inlet and the
tempered water outlet of no greater than 10°C, and
• Have a specified “maximum permitted pressure variation in the supply between the valve’s
hot and cold water inlets of no less than 15%. See Note over page...
Note. To limit water to a maximum of 50ºC to bathrooms and en-suites; an approved
temperature limiting device is required to be fitted to comply with AS/NZS 3500.4.
Setting the unit to 50ºC does NOT negate the need to fit an approved temperature
limiting device.
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Alliance Appliances Pty Ltd
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