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3.4 Recommendations
3.4.1 Connecting diagram
1.Domestic hot-water outlet with dielectric union
2.Domestic cold-water inlet with dielectric union
3.Power supply cable for the immersion heater
4.Thermostatic valve
5.Safety unit
6.Pressure reducer
1. Domestic hot water outlet (red color)
2. Domestic cold water inlet (blue color)
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The components used for the connection to the cold water circuit must comply with the prevailing
standards and regulations in the country concerned. The water connections must comply with the
corresponding standards and local directives.
The domestic hot water circuits and cold water feed pipes must be flushed before making any water
connections to prevent metal particles or other contaminants into the domestic hot water tank. If
flushing has to be done using an aggressive product, neutralize the rinsing water before disposing
of it in the waste water network.
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