Shutdown; Troubleshooting; Maintenance; Checking The Safety Valve - Stiebel Eltron SHD 30 S Utilisation Et Installation

INSTALLATION

Shutdown

13. Shutdown
f Disconnect the appliance from the mains at the MCB/fuse in f
the fuse box.
f Drain the appliance. See chapter "Maintenance / Draining the f
appliance".

14. Troubleshooting

Note
At temperatures below –15 °C the high limit safety cut-out
may respond. The appliance may be subjected to these
temperatures during storage or transport.
Fault Cause
The water does not heat The high limit safety
up. cut-out has responded
because the controller is
faulty.
The high limit safety
cut-out has responded
because the temperature
has fallen below -15 °C.
Rapid heating does not
switch on.
The flanged immersion
heater is faulty.
The selected outlet tem- More water flows
perature is not reached through the appliance
during instantaneous than the heating element
water cylinder mode can heat up.
when the draw-off valve
is fully opened.
The safety valve drips The valve seat is contam-
when heating is switched inated.
off.
Reset button, high limit safety cut-out
1 High limit safety cut-out
2 Reset button
www.stiebel-eltron.com

15. Maintenance

For some maintenance work, the lower cap must be removed.
If you need to drain the appliance, observe chapter "Draining the
appliance".
Note the insertion depths of the temperature controller (see chap-
ter "Specification / Dimensions and connections").
Remedy

15.1 Checking the safety valve

Remedy the cause of the
f Check the safety valve regularly. f
fault. Replace the tem-
perature controller.

15.2 Draining the appliance

Press the reset button
(see diagram).
Test the pushbutton and
lever.
If the appliance needs to be drained for maintenance or to protect
Replace the flanged im-
the whole installation when there is a risk of frost, proceed as
mersion heater.
follows:
Reduce the amount of
water at the DHW valve.
f Close the shut-off valve in the cold water inlet line. f
f Open the hot water taps on all draw-off points. f
Clean the valve seat.
1
1 Drain valve with hose connection G 3/4
f Screw a hose onto the drain valve. f
f Open the drain valve. f
2
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
Before any work on the appliance, disconnect all poles
of the appliance from the power supply.
WARNING Burns
Hot water may escape during the draining process.
1
SHD | 23