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and the associated LED (g) turns on. At the
end of the washing phase, the rinsing pro-
cess starts automatically and this is shown
by LED (h). Once rinsing has finished, the
machine shifts to the stand-by condition,
with LEDs (g) and (h) flashing. Flashing
stops when the door is opened or a new
cycle starts.
Press the key repeatedly to move from one
phase of the cycle to another. So, if was-
hing is on, press the key to shift to the rin-
sing process. During rinsing, press the key
to put the machine stand-by.
A
C
S
UTOMATIC
YCLE
TART
This selector determines the cycle starting
mode: If off (LED (i) off), starting the cycle
is by means of key (5). If on (LED (i) on), the
cycle starts automatically each time the
door is closed.
Pressing the key has the desired effect only
when the door is open.
D
(7)
RAIN
This key works only if the machine has a
drain pump.
It has the desired effect only when the door
is open. Once pushed (LED (j) on), the drai-
ning cycle starts and will continue whether
the door remains open or is closed. By pus-
hing the key again, the draining cycle
stops.
Upon completion of the draining process,
the machine remains stand-by for a few
seconds: after this interval, filling will start
again, unless the user has powered the
machine down by turning main switch off.
Adjustment of Working Temperatures:
(Figure B : Diagram of Electronic Board)
Temperatures are factory-set at:
·55-60ºC for the tub
·85-90ºC for the boiler
Temperature Adjustment:
In order to be able to adjust the tub and
boiler temperatures, the two microswitches
must be in the OFF position (Resistors
Disconnect: OFF). This way, the two resis-
tors remain live and temperatures can be
adjusted within the permissible range: 40-
70ºC for the tub and 70-95ºC for the boi-
ler. Adjusting procedure:
·Check that the two resistors are on:
microswitches (3) in the lower position:
"Resistors Disconnect: OFF".
·Press the red key (Fig. B-5) during 3
seconds to activate the temperature setting
function.
·The display shows the temperature then
predefined for the tub or the boiler (depen-
ding on how many times you pressed the
key - Fig. A-3).
·To adjust the temperature, there are two
potentiometers: B-2 for the tub and B-4 for
the boiler (both clearly identified on the
silk-screened board, that also shows the
temperature ranges).
·Adjusting is done by turning the relevant
potentiometer clockwise to increase the
temperature
decrease it; the display showing the tub or
S
(6)
boiler temperature, whichever has been
ELECTOR
selected with key (Fig. A-3).
·After setting the required temperature,
power the machine down and up with main
switch A-1. As a result, the new tempera-
ture is stored in the memory of the electro-
nic board.
Disconnecting the resistors:
In order to disable the heating of the resis-
tors, there are two microswitches (3) on the
board. So, placing the two microswitches in
the ON position will disconnect the two
resistors (Resistors Disconnect: ON).
Setting of rinsing time:
On this machine, it is possible to increase
the preprogrammed rinsing time by 0 to 4
seconds. This is achieved with potentiome-
ter (B-1). By turning the potentiometer
clockwise, the preprogrammed rinsing time
can be increased by a maximum of 4
seconds.
Troubleshooting:
Only qualified technicians may work on the
connections of the electronic board, after
cutting out power to the machine with the
main switch and the automatic safety cir-
cuit-breaker at the external feeding point
to the machine.
The display shows the temperature probes
failure in accordance with the following
code:
·E1:.......Boiler probe disconnected (circuit
open). Check the connections at the con-
nector (Fig B-c)
·E2:.......Boiler probe short-circuited. Probe
failed and must be changed.
·E3:.......Tub probe disconnected (circuit
open). Check the connections at the con-
nector (Fig B-c)
·E4:.......Tub probe short-circuited. Probe
failed and must be changed.
The temperature transmitters are connec-
and
counterclockwise
to
ted to the four-pin connector (Fig. B-c).
On the electronic board, there are several
light indicators which are very useful for
monitoring the machine operation and
malfunction. Those indicators belong to
either of two groups: input LEDs or output
LEDs.
Input LEDs: those associated with infor-
mation received by the electronic board.
Their location and description are indicated
on the silk-screened board and on Figure
B. The following are the amber LEDs:
·'DOOR' LED: ON, when the door is closed.
·'HIGH PRES.' LED: ON, when the high
pressure switch is on, meaning that the tub
is full.
·'LOW PRES.' LED: ON, when the low pres-
sure switch is on, meaning that the water
level has reached the bottom pressure
switch.
·+Reserve LED: associated to a spare
input.
·'HIGH FLOAT' LED: Break Tank High Float
LED. ON, when the high float has been
actuated, meaning there is water up to this
level.
·'LOW FLOAT' LED: Break Tank Low Float
LED. ON; when the low float has been
actuated, meaning the water level has rea-
ched this point.
Output LEDs: They identify the item that
has been activated by the microprocessor.
Their location and description are indicated
on the silk-screened board and on Figure
B. The following are red LEDs:
·'PRES. PUMP' LED: ON, when the pressure
pump is working.
·'DRAIN PUMP' LED: ON, when the drain
pump is active.
·'S.V.' LED: ON, when water is allowed to
flow through the solenoid valve.
·'WASH. PUMP' LED: ON, when the washing
water pump is operating.
·Reserve LED: associated with a spare out-
put.
·'BOILER RESISTOR CONTACTOR' LED:
ON, when the boiler resistor is heating
water.
·TUB RESISTOR CONTACTOR LED: ON,
when the tub resistor is heating water.
Those LEDS show the status of the outputs
activated
by
the
microprocessor.
Accordingly, when one LED is on, the asso-
ciated component must also be active.
ENGLISH
7
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