Built In Time Switch C - Biasi RIVA PLUS HE 24C ERP User Manual And Installation Instructions

the display.
Press the "OK" button C until the display
shows the setting to be modified or deleted.
The time setting can be modified now by
pressing button D or E and the operation can
be switched on or off by pressing the button
F.
To delete a time set press the button D or E
until the symbols shown in Fig. 2.21 appears
in the time display G.
The new settings are memorised by pressing
the button A.
Manual operation
The operation of the time switch can be
forced on or off constantly or for a timed pe-
riod.
To force constantly on or off the timer op-
eration press repeatedly the button A until
the display shows the symbol TIMER. The
symbols shown in Fig. 2.24 appears on the
display.
Fig. 2.24
The operation can be switched permanently
on or off by pressing the button F and leaving
the display shows the symbol TIMER.
To force a timed delay on or off operation,
press repeatedly the button A until the dis-
play shows the symbol TIMER.
Set the time delay by pressing the button D
or E and the operation can be forced on or
off by pressing the button F.
The time delay can be set within the follow-
ing ranges:
1 to 23 hours with steps of 1 hour
1 to 27 days with steps of 1 day.
INSTRUCTIONS FOR USE
A
Press the button A until the display shows
the symbol AUTO.
The ON-OFF display H flashes indicating
that the current state of operation has been
forced.
To delete the timed delay setting, press re-
peatedly the button A until the display shows
the symbol TIMER, press the button D or E
until the symbols shown in Fig. 2.25 appears
in the display and then press the button A un-
til the display shows the symbol
AUTO.
Setting example shown in Fig. 2.25:
forced ON state for 4 hours.
Fig. 2.25
Note: If during manual operation, power sup-
ply turns off, timer must be set again follow-
ing previous steps.
Resetting
To completely reset the timer, press the reset
button with a pointed object (pencil).
CAUTION: pushing the reset button will
completely erase the settings as well as all
the data, including the current time.
2.9

Built in time switch C

The combi boilers are equipped with a built
in electronic time switch (5, Fig. 1.3 on page
8) which controls the c.h. operation.
A
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