Usage And Maintenance - Wahl Bach OTS 5 Instructions De Montage Et D'utilisation

Thermostat (temperature setting)
(Illustration 2.)
Cold; heater is switched off.
Automatic frost protection active; the device switches on if the water tem-
perature falls below 7°C.
•
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
maximum of +/- 55°C. This also reduces the risk of damage to the device.
•••
Water temperature is +/- 75°C.

Usage and maintenance

Please refer to the previous section for details of the thermostat settings. We recom-
mend you use position „E" as this guarantees maximum energy efficiency by maintain-
ing 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 de-
vice 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
preventive action needs to be taken. Further tightening will not prevent the flow of ex-
pansion 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
temperature at approximately 7°C.
If you will not use the device for more than half a year, un-
plug it, disconnect it from the water supply and empty it.
To that end, hold the device with the connection hoses up-
wards. Remove the connection hoses. Then hold the device,
with the connections pointing downwards, over a sink.
Caution: the boiler will release 5 litres of water.
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