AEG DDLE Basis 18 / 21 / 24 / 27 - Инструкция по эксплуатации - Страница 27

27

!

For contractors

•฀ Observe฀the฀type฀plate

 (

A

18).

•฀ See฀"5.1฀Speciication".

The฀speciic฀electrical฀resistant฀of฀the฀water฀used฀must฀not฀fall฀below฀that฀stated฀on฀the฀type฀plate.฀In฀a฀

linked฀water฀network,฀observe฀the฀lowest฀electrical฀water฀resistance฀(see฀"5.2฀Application฀areas").฀Your฀

water฀supply฀company฀will฀advise฀you฀of฀the฀speciic฀electrical฀water฀resistance฀or฀conductivity.

•฀ Install฀the฀device฀only฀in฀an฀enclosed฀room฀free฀from฀the฀risk฀of฀frost.฀Store฀the฀device฀in฀a฀room฀free฀from฀

the risk of frost, as water residues remain inside the device.

•฀ The฀protection฀IP฀25฀(hoseproof)฀can฀only฀be฀ensured฀with฀a฀correctly฀itted฀cable฀grommet.
•฀

Water installation

:

–฀ Material฀of฀the฀cold฀water฀line:

  Steel, copper or plastic pipework.

–฀ Material฀of฀the฀DHW฀line:

  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.

•฀ A฀safety฀valve฀is฀not฀required.
•฀ Never฀operate฀with฀pre-heated฀water.
•฀ Never฀use฀taps/valves฀for฀open฀vented฀equipment.
•฀ For฀thermostatic฀valves,฀see฀"1.6฀Recommended฀adjustment".
•฀

Electrical installation:

•฀ Use฀only฀permanently฀wired฀power฀cables.
•฀ The฀equipment฀must฀be฀able฀to฀be฀separated฀from฀the฀power฀supply,฀for฀example฀by฀fuses฀that฀disconnect฀

all poles with at least 3 mm contact separation.