the risk of frost, as water residues remain inside the device.
Steel, copper or plastic pipework.
Copper or plastic pipework*.
* The instantaneous water heater can reach operating temperatures up to 60°C. In case of faults, loads
up to 95 °C / 1.2 MPa can occur temporarily in the installation. The plastic pipework used must be suitable
for such temperatures/pressure.
all poles with at least 3 mm contact separation.