Venting After Maintenance Work
This instantaneous water heater features an automatic air bubble protection to
prevent it from inadvertently running dry. Nevertheless, the appliance must be
vented before using it for the first time. Each time the appliance is emptied (e.g.
after work on the plumbing system, if there is a risk of frost or following repair
work), the appliance must be re-vented before it is used again.
1. Disconnect the instantaneous water heater from the mains (e.g. via deactivat-
ing the fuses).
2. Unscrew the jet regulator on the outlet fitting and open the cold water tap
valve to rinse out the water pipe and avoid contaminating the appliance or the
jet regulator.
3. Open and close the hot water tap until no more air emerges from the pipe and
all air has been eliminated from the water heater.
4. Only then should you re-connect the power supply again (e.g. via activating
the fuses) to the instantaneous water heater and screw the jet regulator back
in.
5. The appliance activates the heater after approx. 10 seconds of continuous
water
flow.
Cleaning and Maintenance
• Plastic surfaces and fittings should only be wiped with a damp cloth. Do not use
abrasive or chlorine-based cleaning agents or solvents.
• For a good water supply, the outlet fittings (e.g. jet regulators and shower heads)
should be unscrewed and cleaned at regular intervals. Every three years, the electri-
cal and plumbing components should be inspected by an authorised professional in
order to ensure proper functioning and operational safety at all times.
WARNING
3. How To Use
This instantaneous water heater was manufactured conscientiously and checked
several times before delivery. Should malfunctions nevertheless occur, it is usually only
due to a bagatelle. First attempt to switch the house fuses off and on again in order to
reset the electronics. Next, try to remedy the problem with reference to the following
table. In doing so, you will avoid unnecessary expense of customer service assistance.
4. Troubleshooting and Service
Repairs must only be carried out
by authorised professionals. If
a fault in your appliance cannot
be rectified with the aid of this
table, please contact German
Pool Customer Service & Repair
Centre. Please have the details of
the typeplate at hand.
WARNING!
DSN
Problem
Cause
Solution
Water stays cold
Master fuse tripped
Renew or activate fuse
Safety pressure cut-out
tripped
Contact customer service
Safety thermal cut-out
tripped
Contact customer service
Flow rate of hot
water too weak
Outlet fitting dirty or
calcified
Clean shower head, jet regu-
lator or sieves
Fine filter dirty or calci-
fied
Let clean fine filter by cus-
tomer service
Selected tempera-
ture is not reached
Cold water has been
added via the tap
Tap hot water only; set tem-
perature, check outlet tem-
perature
Water perceived to
be too cold
Set temperature too low
Increase set temperature by a
specialist
Water perceived to
be too hot
Set temperature too high
Decrease set temperature by
a specialist
8
9
Summary of Contents for German Pool DBN
Page 12: ...2 1 DBN 50 C 30 C 60 C 55 C 1 2 3 4 5 10 3 22 23...
Page 13: ...4 DBN PCB PCB 1 2 DBN 1 SDB 24 25...
Page 19: ...NOTE NOTE...