Setting The Temperature; Internal Anti-Scalding Protection (Qualified Contractors); Setting The Tmax Temperature Limit; Allocating Temperature Memory Buttons - Stiebel Eltron DEL 18 Plus Utilisation Et Installation

oPErATIoN
settings and displays
4.3

Setting the temperature

2
1
1 Set temperature selector (no end-stop):
"OFF", 20 - 60 °C (factory setting)
2 Call up/assign preferred temperatures
Setting steps
Temperature range Step
20 °C ... 35 °C 1 °C
35 °C ... 43 °C 0.5 °C
43 °C ... 60 °C 1 °C
Note
!
If the outlet temperature is not high enough when the
draw-off valve is fully open and the temperature selector
is set to maximum, then more water is flowing through
the appliance than can be heated by the heating system
(appliance working at maximum output).
f Use the ECO button to reduce the water volume until f
the required temperature is achieved.
4.4 Internal anti-scalding protection (qualified
contractors)
The appliance has an anti-scalding protection function. The qual-
ified contractor can set an anti-scalding protection level for you
on request.
If the anti-scalding protection function (43 °C) is enabled, "Tmax"
flashes continually once the set temperature has been reached.
4.5

Setting the Tmax temperature limit

Enabling the temperature limit
You can activate and adjust the temperature limit individually
(e.g. for childproofing).
f Press and hold buttons "1" and "2" for longer than 5 seconds, f
until "Tmax" and the temperature display flash.
f Select a temperature limit. f
10 seconds after completing the setting, the menu item will dis-
appear automatically.
If the high limit safety cut-out is enabled, "Tmax" is continuously
displayed.
Disabling the temperature limit
f Disable the high limit safety cut-out by pressing and holding f
buttons "1" and "2" for longer than 5 seconds.
26 | DEL Plus
T
Tmax
Temperature range Step
68 °F ... 140 °F 1 °F
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.
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