STIEBEL ELTRON 236739, Эксплуатация и установка, Страница: 30 / 104

oPErATIoN
Cleaning, care and maintenance
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4.8 Selecting ECO level
ECo level Display flow rate limitation
Level 1 8 l/min (factory setting)
Level 2 7 l/min
Level 3 6 l/min
OFF No symbol No flow rate limit
f f Briefly press the ECO button. Rolling selection, "Level 1 - 3/
OFF".
4.9 Inlet temperature information
If the appliance is operated with preheated water and the inlet
temperature exceeds the selected temperature, the word "hot"
and the inlet temperature are displayed alternately, and the "hot"
LED flashes.
4.10 Recommended settings
Your instantaneous water heater offers maximum precision and
maximum convenience in DHW provision. Should you nonetheless
be operating the appliance with a thermostatic valve, we recom-
mend that you:
f f Adjust the set temperature on the appliance to over 50 °C.
Then set the required set temperature on the thermostatic
valve.
Saving energy
The following recommended settings will result in the lowest en-
ergy consumption:
- 38 °C for hand washbasins, showers, bath
- 55 °C for kitchen sinks
Internal anti-scalding protection (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.
Recommended setting for operation with a thermostatic valve
and water preheated by solar energy
f f
Set the temperature at the appliance to the maximum
temperature.
Following an interruption to the water supply
!
Material losses
To ensure that the bare wire heating system is not dam-
aged following an interruption to the water supply, the
appliance must be restarted by taking the following steps.
f f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f f Open the tap for one minute until the appliance and
its upstream cold water inlet line are free of air.
f f Switch the power back ON.
5. Cleaning, care and maintenance
f f
Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
f f
Check the taps regularly. Limescale deposits at the tap out-
lets can be removed using commercially available descaling
agents.
6. Troubleshooting
Problem Cause remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no power. Check the fuses/MCBs in
your fuse box/distribu-
tion board.
The aerator in the tap
or the shower head is
scaled up or dirty.
Clean and/or descale the
aerator or shower head.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line.
When hot water is being
drawn off, cold water
flows for a short period.
The air detector de-
tects air in the water. It
switches off the heating
output briefly.
The appliance restarts
automatically after
1 minute.
The required tempera-
ture cannot be set.
The high limit safety
cut-out and/or internal
anti-scalding protection
are enabled.
Disable temperature
limiting. The internal an-
ti-scalding protection can
only be adjusted by the
qualified contractor.
The flow rate is too low. ECO function is enabled. Select a different ECO
level or disable the ECO
function.
No settings can be made
on the programming
unit.
The operating lock is
enabled.
Press and hold the ECO
button for more than
10 seconds to disable the
operating lock.
Note
Programming unit displays and selected settings are re-
tained following a power failure.
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your request, provide the number from
the type plate (000000-0000-000000).
Nr. 000000-0000-00000
Nr. 000000-0000-00000
D
00000
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