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Austria Email HR 300 Manual

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Id.Nr.: 241525-1 DE - GB - F
GB
10. CORROSION PROTECTION
The enamelled boiler is protected by a magnesium rod-type anode as standard. The magnesium rod-type anode is sac-
ricial and must therefore be inspected every 2 years (see DIN 4753) and replaced as necessary (2/3 of the material). For
the anodes to function properly, the water requires a minimum conductivity of 150 μs.
When retrotting an external current anode, ensure that all magnesium rod-type anodes (e.g. in built-in heater) are remo-
ved to prevent interference and malfunctions of the external current anode.
See Point 12, Par. C for details on servicing the anode.
The external current anode has a virtually unlimited service life. Its function must be checked regularly via the control lamp.
The lamp indicates two operating conditions:
Green: Everything is OK.
Flashing red: Fault, contact customer service!
The connection cables of the external current anode may not be extended or cut under any circumstances, as this could
result in reverse polarity or malfunctions of the anode. Ensure also that a continuous power supply is guaranteed.
11. TEMPERATURE INDICATOR, THERMOSTAT FOR FEED PUMP
When installing external thermostats, ensure that the boiler temperature cannot rise above 95°C during normal operation.
12. INITIAL STARTUP
The area in which the appliance is operated must be kept below freezing.
Initial startup and heating must be monitored by a technician.
Before rst starting up and connecting to the electrical mains, the tank must be lled with water. When rst lled the outlet
valve on the tting must be opened. The water heater is completely lled when water runs out of the outlet valve with no
air bubbles. All connections, including those made on the user side (ange, anode sleeve,…) must be checked for proper
sealing when starting up. Then check the pipelines for any leakage and remedy this as needed. As described under 2.
above, the safety group as well as the valves between cold water inlet and water heater must be checked for proper
function. After inspecting the electrical fuses (circuit breakers), turn the thermostat knob (for electric upright and horizontal
water heaters) to the desired temperature setting and check for the correct temperature shut-off.
After the tank is fully heated, the set temperature, the actual temperature of the water removed and any built in tempera-
ture indicator must closely agree (after deducting the switching hysteresis and line losses).
As the water in the tank is heated, its volume changes.
During the heat-up cycle the resulting expansion water in the internal boiler must drip from the safety valve. This dripping
is normal and may not be defeated by increased tightening of the valves.
Check for automatic shut-off of the system and any attached electric heater insert or the boiler.
Caution: The hot water outlet pipe as well as parts of the safety tting can become hot to the touch.
13. SHUTTING DOWN, EMPTYING
If the water heater will be shut down or not used for an extended period of time, disconnect it completely from the mains
(for electric heating models) by turning off the power switch or circuit breaker.
In frost-prone areas the water heater must be empties before the cold time of year if the appliance will not be used for
several days.
Empty the service water - after closing the shut-off valve in the cold water supply line - by opening the drain valve on the
safety valve combination and simultaneously opening all hot water vales on the connected ttings.
Partial emptying can also be accomplished through the safety valve into the expansion water funnel (drip catch). For this
the safe valve should be turned to the “...M...” position.
Caution: Hot water can splash when emptying the tank!
When there is a risk of freezing, note that not only the water in the water heater and in the hot water lines can freeze, but
also in all cold water lines to the ttings and to the appliance itself. It is therefore recommended that you empty all water-
carrying ttings and lines (including the heater circuit = register) all the way back to the frost-safe section of the water
utility connection on the house.
When the water heater is restarted, be sure that it is lled with water and water runs out of the ttings without
air bubbles.
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