STIEBEL ELTRON psh 30 trend - Manual (Page 21)

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gl
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www.stiebel-eltron.com PSH Trend | 21
inSTALLATion
commissioning
11. commissioning
11.1 commissioning
Note
Fill the appliance with water prior to electrical connec-
tion. If you switch on the appliance while empty, the high
limit safety cut-out will switch it off.
f f Thoroughly flush out the cold water line before connecting
the appliance, so that no foreign matter gets into the water
heater or safety valve.
f f Open the shut-off valve in the cold water feed line.
f f Open a draw-off point until the appliance has filled up and
the pipework is free of air.
f f Adjust the flow rate. For this, observe the maximum permis-
sible flow rate with a fully opened tap (see chapter "Specifi-
cation / Data table").
f f If necessary reduce the flow rate at the butterfly valve of the
safety valve.
f f Turn the temperature selector to maximum.
f f Switch the mains power ON.
f f Check the function of the appliance. Ensure that the thermo-
stat switches off.
f f Check that the safety valve is working correctly.
11.1.1 appliance handover
f f Explain the function of the appliance and safety valve to
users and familiarise them with their operation.
f f Make users aware of potential dangers, especially the risk of
scalding.
f f Hand over these instructions.
11.2 recommissioning
See chapter "Commissioning".
12. shutting down
f f Disconnect the appliance from the mains at the MCB/fuse in
the fuse box.
f f Drain the appliance. See chapter "Maintenance / Draining the
appliance".
13. troubleshooting
Note
The high limit safety cut-out can respond at temperatures
below –15 °C. The appliance may be subjected to these
temperatures during storage or transport.
fault cause remedy
The water does not heat
up and the ON/OFF indi-
cator does not illuminate.
The high limit safety
cut-out has responded
because the controller is
faulty.
Remedy the cause of the
fault. Replace the con-
troller.
The high limit safety
cut-out has responded
because the temperature
has fallen below -15 °C.
Press the reset button
(see diagram).
The water does not heat
up and the ON/OFF indi-
cator illuminates.
The heating element is
faulty.
Replace the heating el-
ement.
The water does not heat
up sufficiently and the
ON/OFF indicator illumi-
nates.
The temperature control-
ler is faulty.
Replace the temperature
controller.
The heat-up time is very
long and the ON/OFF in-
dicator illuminates.
The heating element is
scaled up.
Descale the heating el-
ement.
The safety valve drips
when heating is switched
off.
The valve seat is contam-
inated.
Clean the valve seat.
Water pressure is too
high.
Install a pressure reduc-
ing valve.
reset key, high limit safety cut-out
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