ESI ES1247, Руководство пользователя и инструкция по установке

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Press the +HR button (2). One press of the button will give one extra
hour of Central Heating (and/or Hot Water); two presses of the
button will give two extra hours; three presses of the button will
give the maximum three extra hours. Pressing it again will switch off
the +HR function. The + 1HR , +2HR or +3HR status of each zone will
appear on the right of the display.
Fig. 3
7
Using the +HR Boost Function
The +HR function allows the user to have up to 3 hours of extra
Central Heating or Hot Water, without having to change the
programme or use the ON or OFF buttons.
NB: The +HR function is only available when the programme is in
AUTO, ALL DAY or OFF operating modes. If the programmer is in
AUTO or ALL DAY mode when the +HR button is pressed and the
resulting time of the boost overlaps a START/ON time, the boost will
disengage.
To +HR Boost Central Heating and/or Hot Water
(2)