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11
4) Harvest Pump Out
When the float switch opens and signals the comple-
tion of the freeze cycle, the harvest cycle begins. The
hot gas valve opens and the compressor continues
to run. The drain timer starts counting the 10/20
second pump out.
The water pump stops for 2 seconds and reverses,
taking water from the bottom of the sump and forcing
pressure against the check valve seat allowing
water to go through the check valve and down the
drain. At the same time water flows through the
small tube to power flush the float switch. When the
drain timer stops counting, the pump-out is com-
plete.
Pump-out always occurs on the 1st harvest after the
initial freeze cycle. The control board allows for
adjustment for pump-out to occur every cycle, or
every 2nd, 5th or 10th cycle from this point.
5) Normal Harvest Cycle
The water valve opens to allow water to assist the
harvest. As the evaporator warms, the thermistor
reaches 9°C. The control board receives the ther-
mistor signal and starts the defrost timer. The water
valve is open during harvest (defrost) for a maximum
of 6 minutes or the length of harvest, whichever is
shorter. When the defrost timer completes its count-
down, the defrost cycle is complete and the next
freeze cycle starts.
The unit continues through 3), 4) and 5) sequence
until the bin control senses ice and shuts the unit
down.
Note: If the icemaker does not start or complete a
cycle of operation, contact your nearest
Hoshizaki Distributor for guidance.
11. FINAL CHECK LIST11. FINAL CHECK LIST
11. FINAL CHECK LIST11. FINAL CHECK LIST
11. FINAL CHECK LIST
1) Is the icemaker level?
2)
Is the icemaker in a site where the ambient tem-
perature is within +7°C to +40°C all year around?
3)
Is there at least a 15 cm. clearance around the
icemaker for maintenance or service?
4)
Have all shipping tape(s), packing and cartons
been removed from the icemaker? Are the cube
guides in their correct position? Are the separators
properly attached to their holding clips?
5)
Have all electrical and piping connections been
made?
6) Has the power supply voltage been checked or
tested against the nameplate rating? And has a
proper earth ground been installed in the icemaker?
7)
Are the Water Supply Line Shut-off Valve and Drain
Valve installed? Has the water supply pressure
been checked to ensure a minimum of .7 bar and
a maximum of 8 bar?
Note: The icemaker may stop running when the water
supply is OFF, or if the pressure is below .7 bar.
When the proper water pressure is reached,
the icemaker automatically starts running again.
8)
Have the compressor hold-down bolts and refrig-
erant lines been checked against vibration and
possible failure?
9)
Has the Bin Control Switch been checked for correct
operation?
10)
Has the end user been given the instruction manual,
and instructed on how to operate the icemaker and
the importance of the recommended periodic main-
tenance?
11)
Has the end user been given the name and tele-
phone number of an authorized service agent?
ENGLISH