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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 lush 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 illed up and
f
the pipework is free of air.
f Adjust the low rate. For this, observe the maximum permis-
f
sible low rate with a fully opened tap (see chapter "specii-
cation / Data table").
f if necessary reduce the low rate at the butterly 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 |
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Table of Contents
Troubleshooting
