STIEBEL ELTRON HDB-E 11/13 Trend - 4 Settings; Setting the Temperature; Recommended Settings; 5 Cleaning, Care and Maintenance

OPERATION
Settings
Following an interruption of the water supply
Property damage
To ensure that the bare wire heating system is not dam-
aged following an interruption to the water supply, the
appliance must be recommissioned by taking the follow-
ing steps.
• Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
• Open and close all connected draw- off valves several
times for at least one minute until all air has been
purged from the pipework and the appliance.
• Switch on the power supply again.
4. Settings
4.1 Setting the temperature
The DHW outlet temperature is set at the factory to 55 °C ( relative
to a rated voltage of 400 V, see chapter " Installation / Commis-
sioning / Preparations"). Your qualified contractor can set a lower
temperature inside the appliance.
Notice
If the outlet temperature is not high enough when the
draw- off valve is fully open, then more water is flowing
through the appliance than can be heated by the heating
system ( appliance working at maximum output).
• Reduce the water volume at the tap.
4.2 Recommended settings
Your instantaneous water heater offers maximum precision and
maximum convenience in DHW provision. If you nonetheless op-
erate the appliance with a thermostatic valve, we recommend
that you:
Ask your qualified contractor to set the temperature to 55 ° C
inside the appliance. Then set the required set temperature
on the thermostatic valve.
Saving energy
The following recommended settings will result in the lowest en-
ergy consumption:
- 35 °C for hand washbasins
- 55 °C for kitchen sinks
Temperature limits ( qualified contractors)
If required, the qualified contractor can set a permanent temper-
ature limit, for example in nurseries, hospitals, etc.
Limiting it in this way prevents water from flowing out of the
appliance at temperatures which could cause injury.
5. Cleaning, care and maintenance
• Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the unit.
• Check the taps regularly. Limescale deposits at the tap out-
lets can be removed using commercially available descaling
agents.
6. Troubleshooting
Problem Cause
The appliance will not There is no power.
start despite the DHW
valve being fully open.
Remedy
Check the fuses / MCBs in
your fuse box / distribu-
tion board.
The aerator in the tap or Clean and/or descale the
the shower head is scaled aerator or shower head.
up or dirty.
The water supply has
been interrupted.
Vent the appliance and
the cold water supply
line.
When hot water is being
drawn off, cold water
flows for a short period.
The air sensor is detect-
ing air in the water. It
briefly switches off the
heating output.
The temperature set
inside the appliance is
too low.
The appliance restarts
automatically after
1
minute.
The temperature is not
achieved.
Ask your qualified con-
tractor to readjust the
temperature.
The appliance has Reduce the flow rate.
reached its output limit.
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate ( 000000-0000-000000).
26 I HDB-E Trend www.stiebel-eltron.com