WITA Delta HE 100 Series, Перевод оригинальных инструкций по установке и эксплуатации

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Operating instruction
WITA Delta HE 75-XX | 100-XX | 120-XX
III Automatic night reduction
Requirements for automatic night reduction
Pumps installed in gas water heaters that have only a small amount of water,
should never be set to automatic night setback.
If the heating system does not supply enough heat to the radiators, check
whether the automatic night setback is activated.
If necessary, deactivate the automatic night reduction.
In order to ensure the correct function of the night reduction,
the following conditions must be fulfilled:
1. The pump must be installed in the flow
2. The heating system must be equipped with an automatic flow temperature control.
By briefly pressing the button, the night reduction is activated and in the display with this
icon will be shown. A short press again deactivates this function. If this operating mode it
will be automatically switched between normal operation and night reduction.
The changeover depends on the flow temperature. The pump switches automatically to night
setback when the flow temperature within 1 hour by more
as 10 ° - 15 ° C decreases. The display then shows this as follows:
The three bars are displayed alternately.
Switching to normal operation is without
Delay once the flow temperature returns
has risen by 3 ° C.
Permanent night reduction
To select this function, first turn on the automatic night setback.
If the button is pressed for more than 5 seconds, the pump changes to the permanent one
Night reduction. This is immediately shown in the display as follows:
The three bars are displayed alternately.
The pump remains permanently in lowered mode until:
• Press the button again for more than 5 seconds.
• to increase the flow temperature then the automatic night reduction is activated,
also after a power failure.
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