Ferroli Optimax HE 31 C Instructions For Installation, Use And Maintenance Manual page 10

Wall-mounted gas fired, pre-mix condensing combination boiler instructions for use installation and maintenance
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By pressing the CH push buttons
set Offset, use the DHW push buttons
accordance with the chart (fig. 14).
To exit the OTC mode, press
Outside temperature
10
(Part. 3 e 4 – fig. 1), the display shows OF flashing (fig. 12); to
(Part. 1 and 2 – fig. 1). It can be varied from 20 to 40, in
fig. 12
(Part. 6 – fig. 1) for 5 seconds.
Outside temperature
fig. 13
fig. 14
OPTIMAX HE 31 C
Outside temperature

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Optimax he 38 cOptimax he plus 38 c

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