Allocating Temperature Memory Buttons; Settings Menu; Selecting Eco Level; Inlet Temperature Information - STIEBEL ELTRON DEL 18 Plus Bedienung Und Installation

oPErATIoN

Cleaning, care and maintenance

4.6

Allocating temperature memory buttons

Memory buttons "1" and "2" can each be assigned a required
temperature.
f Select the required temperature. f
f To store the required temperature, press and hold button f
"1" or "2" for longer than 3 seconds. The temperature flashes
once to confirm.
4.7

Settings menu

Menu Description
Temperature display Select °C or °F
Operating lock Select ON or OFF. Symbol displayed
Fault code display Displays E1...E3 if there is a fault on the appli-
ance. Call qualified contractor.
f To call up the menu, press and hold the ECO button for f
longer than 5 seconds.
f To select, turn the temperature selector. f
f Press the ECO button once more. f
f To quit the menu, press and hold the ECO button for longer f
than 5 seconds.
The menu switches off automatically if no operation has been
performed for 30 seconds.
Note
To call up the menu when the operating lock is enabled,
press and hold the ECO button for longer than 10 seconds.
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
No symbol No flow rate limit
f Briefly press the ECO button. Rolling selection, "Level 1 - 3/ f
OFF".
4.9

Inlet temperature information

If the appliance is operated with preheated water and the inlet
temperature exceeds the selected set 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 Adjust the set temperature on the appliance to over 50 °C. f
Then set the required set temperature on the thermostatic
valve.
26 | DEL Plus
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.
When supplying a shower, the temperature setting range must be
adjusted by the qualified contractor to 55 °C or less.
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 Set the temperature at the appliance to the maximum f
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 taking the following steps.
f Disconnect the appliance from the power supply by f
removing the fuses/tripping the MCBs.
f Open the tap for one minute until the appliance and f
its upstream cold water inlet line are free of air.
f Switch the power back ON. f
5. Cleaning, care and maintenance
f Never use abrasive or corrosive cleaning agents. A damp f
cloth is sufficient for cleaning the appliance.
f Check the taps regularly. Limescale deposits at the tap out- f
lets can be removed using commercially available descaling
agents.
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