Sammic SL-21BD, User Manual

Page: 7 / 28

Setting temperatures :
· S
ETTING OF WASH TANK TEMPERATURE
:
1. With the machine off, set "Disconnect
Resistors" microswitch 1 (Fig. B-1) to
position ON (1 ON, 2 OFF).
2. Switch the machine on and wait until
the display stops showing the model
number and shows a temperature.
3. Now press button (Fig. B-2) on the elec-
tronic board until all three 'Select Cycle'
LEDs (Fig. A-d, e, f) and the 'Wash Tank"
LED (Fig. A-a) turn on simultaneously.
The display shows the preset wash tank
temperature.
4. Use the pushbutton "Start Cycle" (Fig. A-
4) to increase the temperature setpoint
or push button "Drain" (Fig. A-5) to
decrease it.
5. Press "Select cycle" (Fig. A-3) to save the
selected temperature. The three "cycle"
LEDs turn off and the display confirms
correct saving of the value.
6. Switch the machine off.
7. Set "Disconnect Resistors" microswitch 1
(Fig. B-1) to position OFF (1 OFF, 2 OFF).
· S
ETTING OF BOILER TEMPERATURE
:
1. With the machine off, set "Disconnect
Resistors" microswitch 2 (Fig. B-1) to
position ON (1 OFF, 2 ON).
2. Switch the machine on and wait until
the display stops showing the model
number and shows a temperature.
3. Now press button (Fig. B-2) on the elec-
tronic board until all three 'Select Cycle'
LEDs (Fig. A-d, e, f) and the 'Boiler" LED
(Fig. A-b) turn on simultaneously. The
display shows the preset boiler tempe-
rature.
4. Use the pushbutton "Start Cycle" (Fig. A-
4) to increase the temperature setpoint
or push button "Drain" (Fig. A-5) to
decrease it.
5. Press "Select cycle" (Fig. A-3) to save the
selected temperature. The three "cycle"
LEDs turn off and the display confirms
correct saving of the value.
6. Switch the machine off.
7. Set "Disconnect Resistors" microswitch 2
(Fig. B-1) to position OFF (1 OFF, 2 OFF).
Disconnecting the elements
The electronic board includes two
"Disconnect Resistors" microswitches (Fig.
B-1) for disabling the heating of the resis-
tors. Therefore, setting both microswitches
to position ON disconnects the two ele-
ments("Disconnect Resistors" ON).
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-
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 amber LEDs:
· 'DOOR' LED: ON , when the door is closed.
·' PRES.SW' LED: ON , when pressure switch
is on, the tub is full.
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:
· "WASH PUMP" LED: ON , when wash pump
is working.
· "DRAIN PUMP" LED: ON , when drain
pump is working.
· "BOILER S.V." LED: ON , when rinsing elec-
trovalve is active.
· "C.CALD." LED (boiler element contactor):
ON, when boiler resistor is heating water.
· "C.CUBA" LED (wash tank resistor contac-
tor): ON, when wash tank resistor is hea-
ting water.
· "COLD S.V." LED: ON , when cold rinsing
water solenoid valve is active.
· "REG. S.V." LED": ON , when regeneration
solenoid valve is active.
Example : If the "Boiler Resistor" LED is on
and the resistor does not heat up, this
means that the microprocessor gives the
order correctly and the fault lies in an
external item such as the relay or the resis-
tor.
Model Configuration
Control of cycle time (Thermal Lock) as a
function of the boiler temperature :
· The electronic controller features the
possibility of increasing the cycle time
until the preset temperature is reached in
the boiler. So, in the event the temperatu-
re of the boiler were lower than the pre-
set value, the cycle would be extended
until the preset temperature is reached.
This prevents rinsing with cold water. In
order to enable this feature, select the
appropriate digit from the enclosed table.
Selection of model
The machine model number appears on the
display for 2 seconds once the main switch
is turned on. In order to select another
model number, proceed as follows:
1. Power the machine down.
2. Set the two microswitches (Fig B-1) to
position "ON" (1ON, 2ON).
3. Power the machine up.
4. Wait until the display stops showing
the model number and shows a tem-
perature.
5. Now press button (Fig. B-2) on the elec-
tronic board until all three 'Select Cycle'
LEDs (Fig. A-d, e, f) turn on simultane-
ously.
6. Use the pushbutton "Start Cycle" (Fig. A-
4) to increase the model number.
7. Push button "Drain" (Fig. A-5) to decre-
ase the model number.
8. After selecting the desired model num-
ber, press button "Select Cycle" (Fig. A-
3) to confirm. The three "Select Cycle"
LEDs (Fig. A-d, e, f) turn off when the
model number has been saved.
9. Power the machine down.
7 ENGLISH
M
ODEL
Nº
C
YCLE TIME
(
SE
C)
D
RAIN
P
UMP
W
ATER
SOFTENER
T
HERMAL
LOCK
M
ODEL
25
120
180
130 (COLD)
NO
YES NO
SL-21D
26 YES YES
27
120
180
130 (COLD)
YES
YES NO
SL-21BD
28 YES YES