Commissioning; Recommissioning; Shutting Down; Troubleshooting - STIEBEL ELTRON PSH 30 Trend Operation And Installation

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 Thoroughly flush out the cold water line before connecting f
the appliance, so that no foreign matter gets into the water
heater or safety valve.
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 f
the pipework is free of air.
f Adjust the flow rate. For this, observe the maximum permis- f
sible flow rate with a fully opened tap (see chapter "Specifi-
cation / Data table").
f If necessary reduce the flow rate at the butterfly valve of the f
safety valve.
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- f
stat switches off.
f Check that the safety valve is working correctly. f
11.1.1 Appliance handover
f Explain the function of the appliance and safety valve to f
users and familiarise them with their operation.
f Make users aware of potential dangers, especially the risk of f
scalding.
f Hand over these instructions. f

11.2 Recommissioning

See chapter "Commissioning".

12. Shutting down

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".
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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
The water does not heat The high limit safety
up and the ON/OFF indi- cut-out has responded
cator does not illuminate. because the controller is
faulty.
The high limit safety
cut-out has responded
because the temperature
has fallen below -15 °C.
The water does not heat The heating element is
up and the ON/OFF indi- faulty.
cator illuminates.
The water does not heat The temperature control-
up sufficiently and the ler is faulty.
ON/OFF indicator illumi-
nates.
The heat-up time is very The heating element is
long and the ON/OFF in- scaled up.
dicator illuminates.
The safety valve drips The valve seat is contam-
when heating is switched inated.
off.
Water pressure is too
high.
Reset key, high limit safety cut-out
Remedy
Remedy the cause of the
fault. Replace the con-
troller.
Press the reset button
(see diagram).
Replace the heating el-
ement.
Replace the temperature
controller.
Descale the heating el-
ement.
Clean the valve seat.
Install a pressure reduc-
ing valve.
PSH Trend | 21