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9.
Tap water settings
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T001045-06-A
9.1 Preventing legionella
The tap water can be heated to 65°C once a week to prevent
legionella in your boiler. This measure can be used for external
boilers if necessary, but not for combi-boilers.
When this setting is enabled, the tap water is heated by default
on Mondays during the night at 02.00.
You can change this setting via Menu > Settings > DHW >
Anti-Legionella.
To ensure this function works correctly, check whether any
i
settings have to be made on the boiler for this function to
be permitted. The boiler must allow an increased tap water
temperature.
9.2 Controlling the tap water temperature
You can set whether and when the temperature of the tap
water may drop in order to save energy. This can be done at
night, for example, when the demand for hot tap water is lower.
The iSense has two settings for this:
•
Standby
•
DHW temperature
Both functions are active simultaneously.
i
The
symbol is shown in the display when DHW
i
standby is switched off.
DHW standby
The combi-boiler pre-heats periodically in order to be able to
quickly meet the demand for hot tap water. You set this option
via Menu > Settings > DHW > Standby.
You can choose from the following options:
•
Continuous off: the combi-boiler does not keep itself hot.
Select this option for maximum energy saving.
•
Continuous on: the combi-boiler keeps itself hot
continuously.
Select this option for optimum comfort.
•
Night temp. off (
boiler is not pre-heated if the desired room temperature is
the same as or lower than the night temperature that is set
via Menu > Program > Night temp. For example: if the
Night temp. setting is 15°C, then the water in the example
day given below is not kept hot in the shaded time periods.
Select the option Night temp. off to save energy during the
night.
Boilers respond differently to this function. Some do provide
i
hot water, but take longer to get up to temperature. Others
only provide the heat that is still present, for example in a
boiler, and the water becomes cold after that. Consult your
boiler documentation for more information about this.
18
Remeha iSense
symbol visible in display): the combi-
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