Scotsman C2648 - Manual (Page 16)

C2648 Prodigy and Prodigy Plus Service Manual
January 2015
Page 16
Initial Start Up
Remove front and left side panels. Check machine
for any packing or wires rubbing moving parts. Note
location of control board in lower left corner of the
machine’s front.
1. Switch on the electrical power to the machine.
2. Observe that some of the control’s indicator lights
glow and its display shows O.
3. Wait 4 hours for the compressor’s crankcase
heater to warm up the oil in the compressor.
1. Open the water supply valve.
2. Turn the receiver’s outlet valve to the full open
position.
3. Push and release the ON button of the lower left
corner switch panel.
The indicator light will begin to blink F. The purge
valve will open and the water pumps will start.
The inlet water valve will open to add water to the
reservoir. After a few seconds the purge valve will
close and the water pumps will stop. Water will flow
into the machine until the reservoir is full. The hot
gas valves and harvest assist devices will activate
and the liquid line solenoid valve will open, then the
compressor, remote fan motor and water pumps
will start. The display will show a continuous F. Five
seconds later the hot gas valves will close and the
harvest assist devices will return to their standby
positions. Warm air will be discharged from the
condenser coil.
4. During the Freeze cycle move each curtain to
confirm the controller is getting the signal from the
curtain switch. Two of them will cause the SW1 or
SW2 light on the control board to blink ON when
the curtain moves away from the evaporator and
OFF. One of the curtains will cause the period in
the display code to blink ON when the curtain is
moved away and OFF when returned to its normal
position.
5. Note: Moving the curtain during the Freeze cycle
has no affect on unit operation.
6. Observe the Ready for Harvest indicator light. It
may blink early in the freeze cycle, that is normal.
The control will ignore that signal for the first 6
minutes of freeze.
7. When the ice has frozen enough, the Ready for
Harvest indicator light will be on steady. After it’s
been on steady for a few seconds Harvest will
begin.
The display shows an H. The hot gas valves open
and the harvest assist mechanisms are activated.
The purge valve opens to drain some water, when it
does the inlet water valve opens to refill the reservoir.
After a few seconds the purge valve closes but the
inlet water valve continues to fill the reservoir. Harvest
continues until the ice is released as a unit from each
evaporator and forces each curtain to open.
8. When all curtains have opened and re-closed the
controller returns the unit to a freeze cycle.
9. Check the ice harvested for proper bridge
thickness. The ice bridge is factory set at 3/16
inch. If needed, adjust bridge thickness. Do NOT
make it too thin.
10. Determine the water purge setting from the table
on the next page. If desired, change the setting to
accommodate the local water conditions.
11. Return the panels to their normal positions and
secure them to the machine.
12. Instruct the user in the operation of the machine
and its maintenance requirements.
13. Fill out and mail the warranty registration form or
go on line at Scotsman’s website, www.scotsman-
ice.com and register it there.
Typical Ice Making Cycle Times (minutes)
Model 70 o F. cond air /
50 o F. water
90 o F. cond air /
70 o F. water
C2648R 11 - 13 13 - 15
Listed times are for clean machines. Cycle times at
startup will be longer until the system stabilizes.