Sachs COPPERFLOW Manuel d'utilisateur télécharger pdf (Page 18)

PLASTIC PIPING AND HOT WATER

Under normal operating conditions, electric water heaters may heat water to

around 80ºC. Mains pressure varies from location to location and from time to

time and SAXON electric water heaters are fitted with an expansion relief valve

rated at 1400kPa. Under certain circumstances such as component malfunction,

temperatures of water may exceed 80ºC at pressures up to 1400kPa.

Tradesmen must ensure that the plastic pipe they are using complies with

relevant standards and can handle both the temperatures and the pressures

associated with water heaters in both normal operating conditions and in times

of component malfunction for the life of the installation within the property.

Tradesmen should reference AS/NZS 3500.4 to ensure that they use the correct

plastic pipe for the particular task. Pipe manufacturers may also provide

additional information.

WATER QUALITY

SAXON water heaters have been manufactured to suit most Australian water

supplies. However, some water supplies can have a detrimental effect on the

copper inside the SAXON water heater. Water chemistry from some water

authorities and in some shires may, from time to time, result in pitting corrosion

of the copper coil and ultimate failure of the water heater. Some SAXON water

heaters are fitted with a small anode to assist in the prevention of pitting

corrosion due to water which is corrosive to copper.

Key know contributors to pitting corrosion include pH levels below 7 and/or

bicarbonate to sulphate ratios in the water of less than 2:1 ratio. If you are unsure

of your water quality, you can obtain information from your local council or

local laboratories. Installing a SAXON water heater in areas where water that is

corrosive to copper exists may void your warranty.

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Sachs COPPERFLOW Manuel d'utilisateur Page 18