Stiebel Eltron SBB 300-1 Plus Utilisation Et Installation page 21

INSTALLATION
Commissioning
9.3 Temperature sensors
Note
The temperature sensor is part of the standard delivery
of the heat pump control unit.
f Bend the springs of the DHW sensor.
f Insert the DHW sensor as far as it will go into the sensor
well for the heat pump flow sensor (recommended energy
saving position) or heat pump return sensor (high DHW
convenience).
f Mount the sensors according to the installation instructions
for the heat pump control unit (for sensor wells, see chapter
"Specification / Dimensions and connections").
f Route the connecting cable/lead to the heat pump control
unit.
10. Commissioning
10.1 Initial start-up
f Open a downstream draw-off point until the appliance is full
and the pipes are free of air.
f Vent the internal indirect coil.
f Fit and check accessories as required.
f Check the safety valve for correct function.
f Check that the DHW temperature displayed on the heat pump
control unit is correct.
10.1.1 Appliance handover
f Explain the appliance function to users and familiarise them
with how it works.
f Make the user aware of potential dangers, especially the risk
of scalding.
f Hand over these instructions.
10.2 Recommissioning
See chapter "Initial start-up".
11. Appliance shutdown
f Disconnect any accessories installed from the mains at the
MCB/fuse in the fuse box/distribution board.
f Drain the appliance. See chapter "Maintenance / Draining the
appliance".
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12. Troubleshooting
Fault
The safety valve drips when heat-
ing is switched off.
13. Maintenance
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
If you need to drain the appliance, observe chapter "Draining the
appliance".
13.1 Checking the safety valve
f Regularly vent the safety valve on the safety assembly until a
full water jet is discharged.
13.2 Checking/replacing the protective anode
f We recommend having the protective anode initially checked
and replaced if necessary after 2 years. For this, observe the
maximum transition resistance of 0.3 Ω between the protec-
tive anode and the cylinder.
f Next, decide the time intervals at which further checks
should be carried out.
13.3 Draining the appliance
WARNING Burns
Hot water may escape during draining.
f Close the shut-off valve in the cold water supply line.
f Open the hot water taps on all draw-off points.
f Drain the appliance via the drain valve.
13.4 Cleaning and descaling the appliance
For the torque of the flange screws, see chapter "Specification /
Dimensions and connections".
f Never use descaling pumps.
f Do not treat the enamelled interior of the cylinder or the pro-
tective anode with descaling agents.
SBB 300-1 Plus, SBB 400-1 Plus, SBB 500-1 Plus |
Cause Remedy
The valve seat is Clean the valve seat.
contaminated.
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