Foster F40 User Manual
Page 8
F20 & F40 A/W Wiring Diagram
7
the service and inspection operations.
IN OPERATION: The unit is running through the freezing and defrost cycle stopping automatically only at full bin situation.
RE-SET/HI TEMPERATURE: To be selected to resume the unit operation when the ice maker shuts off due to the intervention of the condenser
temperature sensor (too high condensing temperature).
The five LEDS, placed in a row in the front of the P.C. BOARD, monitor the following situations:
GREEN LIGHT:
Unit under electrical power
YELLOW LIGHT:
Unit shut-off at full storage bin
RED LIGHT:
Unit shut-off due to hi-condensing
temperature
Blinking:
Unit shut-off due to hi-evaporating
temperature
YELLOW LIGHT:
Unit in freezing operation
YELLOW LIGHT:
Unit in cleaning/rinsing mode
12.6 DIP SWITCH
The P.C. BOARD which controls the entire operation of the ice maker, has a
DIP SWITCH with ten switching keys which allow to set up the
micro processor program in order to extend or to shorten the length of freezing and defrost cycles in relation to the different models and versions
of ice machines.
The DIP SWITCH first four keys setting determines the length of the 2nd phase of freezing cycle (controlled by the electronic timer) as detailed
in Table B.
The DIP SWITCH keys 5, 6 and 7 setting determines the length of the defrost cycle according to the ambient temperature sensor as specified
in table C.
The 8th DIP SWITCH key allows to make a rapid check up of the P.C. BOARD output connections (compressor, water pump, fan motor, water
inlet and hot gas solenoid valves) energizing them in rapid sequence (2 seconds) one by one.
DURING THE AUTOMATIC OPERATION OF THE ICE MAKER THIS KEY MUST BE SET IN OFF POSITION.
ATTENTION: The check up of the P.C. BOARD output must be performed in a very short time in order to avoid frequent starts and stops (every
few seconds) of the electrical components which may damage them, especially the compressor.
The 9th key allows the operation of the water pump even during the defrost cycle. On B 90 it must be set all the time to OFF position.
The 10th key is used to supply power to the water pump during the first 15-20 seconds of the defrost cycle to drain out all remaining water from
the sump tank in the unit equipped with the solenoid drain valve i.e. the KWD drain system.
13. Dip Switch Settings FCI 40-60-85
Dip switch
1
2
3
4
5
6
7
8
9
10
FCI 40
ON
ON
OFF
ON
ON
ON
OFF
OFF
ON
OFF
FCI 40 W
ON
ON
OFF
ON
ON
ON
OFF
OFF
ON
OFF
FCI 60
ON
ON
OFF
ON
ON
ON
OFF
OFF
ON
OFF
FCI 60 W
ON
ON
OFF
ON
ON
ON
OFF
OFF
ON
OFF
FCI 85
OFF
OFF
ON
ON
ON
ON
OFF
OFF
ON
OFF
FCI 85 W
OFF
OFF
ON
ON
ON
ON
OFF
OFF
ON
OFF
Table B
Table C
Table A
18
LENGTH OF TIMED PORTION OF FREEZING CYCLE ACCORDING TO DIP SWITH COMBINATIONS
1
2
3
4
1
2
3
4
1
ON
ON
OFF
OFF
25 min
8
OFF
ON
OFF
ON
11 min
2
OFF
OFF
ON
OFF
23 min
9
ON
ON
OFF
ON
9 min
3
ON
OFF
ON
OFF
21 min
10
OFF
OFF
ON
ON
7min
4
OFF
ON
ON
OFF
19 min
11
ON
OFF
ON
ON
5 min
5
ON
ON
ON
OFF
17 min
12
OFF
ON
ON
ON
3 min
6
OFF
OFF
OFF
ON
15 min
13
ON
ON
ON
ON
1 min
7
ON
OFF
OFF
ON
13 min
LENGTH OF DEFROST CYCLE (IN SEC.) ACCORDING TO THE AMBIENT TEMPERATURE AND TO
DIP SWITCH SETTING COMBINATIONS
5
6
7
0-5°C
5-10°C
10-15°C
15-20°C
20-25°C
25-30°C
30-35°C
35-40°C
ON
ON
OFF
180 sec
150 sec
120 sec
90 sec
90 sec
90 sec
90 sec
90 sec
OFF
OFF
ON
210 sec
180 sec
150 sec
120 sec
120 sec
120 sec
90 sec
90sec
ON
OFF
ON
240 sec
210 sec
180 sec
150 sec
150 sec
120 sec
120 sec
90 sec
OFF
ON
ON
240 sec
210 sec
180 sec
150 sec
150 sec
120 sec
120 sec
120 sec
ON
ON
ON
270 sec
240 sec
210 sec
180 sec
180 sec
150 sec
150 sec
150 sec