ThermoFlow Ut5, Assembly And Operating Instructions Manual

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DE NL GB F TR PL DE NL GB F TR PL
Thermostat (temperature setting)
(Illustration 2.)
•
Cold; heater is switched off.
Automatic frost protection active; the device switches on if the water tempera-
ture falls below 7°C.
I
Water temperature has risen by +/- 32°C.
E
Energy-saver mode/reduced energy consumption:
Greater energy savings are possible if the water temperature is set to a maxi-
mum of +/- 55°C. This also reduces the risk of damage to the device.
III
Water temperature is +/- 75°C.
Usage and maintenance
Please refer to the previous section for details of the thermostat settings. We recommend
you use position „E“ as this guarantees maximum energy efficiency by maintaining the
water temperature at approximately 55°C; furthermore lime scale build-up and heat loss
are much lower than at higher temperatures.
Operation of the device is indicated by the indicator light, which lights up when the device
is on and extinguishes when the set temperature is reached or the device is turned off.
During heating, the volume of the water in the device expands, causing a flow of water
(„expansion water“) from the low-pressure tap fitting. This is perfectly normal and no pre-
ventive action needs to be taken. Further tightening will not prevent the flow of expansion
water. This may damage the hot water valve.
Frost
When the device has not been used for a couple of months, it must
be protected against the effects of frost.
Leave the power supply on and set the thermostat knob to „ “.
When set to this position, the device maintains the water tempera-
ture at approximately 7°C.
If you will not use the device for more than half a year, unplug it, dis-
connect it from the water supply and empty it. To that end, hold the
device with the connection hoses upwards. Remove the connection
hoses. Then hold the device, with the connections pointing down-
wards, over a sink. Caution: the boiler will release 5 litres of water.
4. Maintenance
Maintenance
This device does not require any maintenance by the user. Profes-
sional maintenance should always be carried out by an expert.
If faulty, never try to repair the device yourself. Please contact
the nearest service specialist or the party that supplied the de-
vice originally.
De-scaling
A service inspection should be performed by authorized and qualified technical staff every
year. De-scaling of the device during this inspection is highly recommended, especially
when you live in an area with hard water exceeding 12°dH (German standard of hard-
ness). Higher water temperature will intensify calcification. It is therefore recommended
to set the device at maximum 55°C (energy-saving setting) in areas with extremely hard
water >16°dH.
Cleaning
The housing of the device can simply be cleaned with a damp cloth. Do not use aggressive
cleaners or cleaners with a scouring effect!
Legionella prevention
Do not use heated water as drinking water.
After prolonged shutdown of the device for example due to holidays, the device should be
fully heated up to the maximum temperature (tap at minimum flow) before re-using. It is
recommended to flush the pipes for one minute.