Operating Instructions and Installation Instructions

29
Operation – for users and qualied contractors
4.5 Recommended settings
4.5.1 Energy saving
You will consume the least amount of energy with the
following recommended settings:
◦ 38 °C for basins, showers, baths,
◦ 55 °C for sinks.
4.5.2 Thermostatic valve
If you operate the appliance with a thermostatic valve,
we would recommend that you set the temperature at the
appliance to the maximum level (temperature selector at
60 °C). You can then select the required temperature at
the thermostatic valve.
5. Maintenance and care
A damp cloth is sufcient for cleaning the casing. Never
use abrasive or corrosive cleaning agents.
6. What to do if ...
6.1 ... the water supply is interrupted
!
Risk of damage!
After an interruption to the water supply, take the
following steps prior to returning the appliance
into use.
» Remove fuses or trip the appropriate MCBs.
» Open a draw-off valve, downstream of the appliance,
long enough to vent all air from the appliance and its
upstream cold water supply line.
» Replace the fuses or reset the relevant MCBs.
6.2 ... the wireless remote control batteries
are spent
Fault Cause Remedy
LED on wireless
remote control flashes
during and after
sending.
Batteries in the
wireless remote
control spent.
Replace batteries.
» Open the wireless remote control casing by undoing
the two screws at the back and pivoting the casing
open.
» Remove the old battery and insert the new one.
!
Ensure correct polarity of the new battery: Posi-
tive (+)
must be at the top. Observe the information in chap-
ter "Environment and recycling".
» Close the casing. Observe the casing recess in the
edge of the lid. The recess determines the correct
positioning of the lid and ensures the casing is tightly
sealed.
6.3 ... faults occur on the appliance?
Fault Cause Remedy
The heating system
will not start in spite
of the tap being fully
open.
No voltage. Check the fuse/MCB
in your fuse box/
distribution panel.
Low flow rate, shower
head/perlators scaled-
up.
Clean and / or descale
perlators.
Heating system faulty. Call customer service
/ your contractor.
Cold water flows
briefly.
The air sensor detects
air in the water and
briefly switches the
heater OFF.
Appliance starts again
after one minute.
Flow rate too low. ECO mode is enabled,
and the throughput in
ECO mode is set too
low.
Select a higher ECO
throughput.
Shower head/
perlators scaled-up.
Clean and / or descale
perlators.
Temperatures above
43 °C cannot be
selected.
Dynamic anti-scalding
protection is enabled.
Cancelled
automatically 2
minutes after drawing
has ceased.
Where a fault can only be remedied by a contractor, they
can better and more speedily remedy the fault if you pro-
vide them with some of the details from the type plate (19):
18
kW
24
21
18
kW
24
21
19
26_02_02_0883
DDLE ÖKO TD Nr.: . . . - . . . . - . . . . . .