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
start and stop (every few seconds) of the
electrical components which may damage
them specially the compressor.
The 9th key allows the operation of the water
pump even during the defrost cycle, as required
when it is necessary to drain out the remaining
water from the sump.
The 10th key is used to supply power to the water
pump for the first 15 seconds of the defrost cycle
(ACM 85, AC 125 & AC 175) - position OFF - and
for the first 30 seconds - position ON (AC 225).
LENGTH OF TIMED PORTION OF FREEZING CYCLE ACCORDING TO THE
DIP SWITCH SETTING COMBINATIONS
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 the table B.
TAB. 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.
LENGTH OF DEFROST CYCLE (IN SEC.) ACCORDING TO THE
AMBIENT TEMPERATURE AND TO THE DIP SWITCH SETTING COMBINATIONS
TAB. C
G. WATER SPRAY SYSTEM
Through its nozzles, the water pumped, is sprayed
in each individual cup to be frozen into ice.
It consists of one spray platform on model
ACM 85 and two separated spray platforms on
AC 125-175 which have six spray nozzles each.
On the AC 225 the spray bar is self rotating being
propelled by a stream of water passing through
an hole located in one arm of the spray bar.
H. WATER PUMP
The water pump operates continually throughout
the freezing cycle and on the first 15 or 30
seconds of the defrost cycle so to such the
remaining water from the sump tank (reach in
mineral salts) and drain it out.
During the freezing cycle the pump primes the
water from the sump to the spray system and
through the spray nozzles sprays it into the
inverted cup molds to be frozen into crystal clear
ice cubes.
It is recommended that the pump motor bearings
be checked at least every six months.
Page 25
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