3
B 335 -RTP 82 Eng
03.93
We reserve the right to make changes without notice
COSTER
SETTING
Time Switch
To see the time switch completely the protective window must
be opened by turning it to the left.
•
Adjustment of current time
The dial can rotate both clockwise and anticlockwise.
– 24-hour time switch : rotate the minutes hand, by means of the
glass window (fig. 4.
1
) until the current hour on the 24-hour dial
(fig. 4.
7
) coincides with the index at top left (fig. 4.
2
) and the
current hour on the 12-hour dial (fig. 4.
1
) coincides with the
hour and minute hands.
– 7-day time switch : rotate the minutes hand, by means of the
glass window (fig. 4.
1
), until the current day sector on the 7-
day dial (fig. 4.
8
) coincides with the index (fig. 4.
2
); continue to
rotate the minutes hand until the current hour on the 7-day dial
coincides with the index (fig. 4.
2
) and the current hour on the
12-hour dial (fig. 4.
1
) coincides with the hours and minutes
hands.
•
Setting programme
By means of the prod, housed under the protective window,
move towards the outside all the segments corresponding to the
“Normal” periods of operation (fig. 4.
5
) which will be evidenced
by the appearance of red zones. The 24-hour time switch has
10-minute segments with a minimum interval of 20 minutes be-
tween two successive switchings.
The 7-day time switch has 1-hour segments with a minimum
interval of 2 hours.
Control of desired temperature
Two values for desired temperature can be set:
•
“Normal” temperature, for periods when the premises are oc-
cupied, with the “Sun” potentiometer (fig. 2.
6
).
•
“Setback” temperature, for periods of non-occupation of the
premises or for the night period, with the “Moon” potentio-
meter (fig. 2.
7
).
The setting range of the desired temperatures can be limited
by means of two pins (fig. 3.
5
) housed on the base at the side
of the terminal block. Extract the setting knobs (fig. 2.
6
) and
(fig. 2.
7
), and, using the prod, insert the pins in the holes corre-
sponding to the minimum and maximum limit temperature val-
ues.
TESTING
•
Set the times for the plant to be in operation on the time switch
and position the operations switch (fig. 2.
3
) on “Time switch”.
•
Turn the “Normal” temperature potentiometer (fig. 2.
6
) to maxi-
mum and the “Setback” temperature potentiometer (fig. 2.
7
) to
minimum.
•
Position the time switch dial to the “Normal” period position.
LED (fig. 2.
8
) should light.
The result should be : valve opening and LED (fig. 2.
10
) lit.
•
Position the time switch dial to the “Setback” period position.
LED (fig. 2.
9
) should light.
The result should be : valve closing and LED (fig. 2.
11
) lit.
•
Position the switch (fig. 2.
3
) on “Sun”. LED (fig. 2.
8
) should
light. With potentiometer (fig. 2.
6
) at maximum the result should
be : valve opening and LED (fig. 2.
10
) lit.
With potentiometer at minimum : valve closing and LED (fig.
2.
11
) lit.
•
Position switch (fig. 2.
3
) on “Moon”. LED (fig. 3.
9
) should light.
With potentiometer (fig. 2.
7
) at maximum the result should be :
valve opening and LED (fig. 2.
10
) lit.
With potentiometer at minimum : valve closing and LED (fig.
3.
11
) lit.