Initial Start Up - Scotsman CME1856W User Manual

CME1856W

Initial Start Up

1. Remove the front and left side panels.
2. Check that the compressor shipping brackets
have been removed.
3. Connect electrical power.
4. Locate the Controller and note which color
housing it has, blue or black.
5. When a controller receives power for the first
time after having been switched Off it goes through
a start up routine, the routine used depends on
the color of the housing. Black housings: all lights
flash on & off. Blue housings: the two red lights
blink while the Freeze and Clean lights are
displayed (to verify it's using the correct program),
after that the Bin Full and Off lights will be on for a
few seconds. The Bin Full light then switches off.
6. After the start up routine the Off light on the
controller will be glowing.
7. Open the water supply valve(s).
8. Push and release the Freeze cycle push button
(the Freeze indicator light will blink until the
compressor starts).
Initial Start (30 seconds)
•
The Freeze light will blink.
•
The hot gas solenoid valve will be open.
•
The purge valve will be open
•
The water pump will be on
•
After 30 seconds, the hot gas valve closes
•
The purge valve will shut and the inlet water
valve will open to fill the reservoir.
•
The compressor starts.
Note: Three Phase Units (Scroll Compressor). If at
start up the compressor makes a louder than
expected noise and does not begin to cool the
evaporators or suction line, the compressor motor
is likely running backwards. See page 21.
Freeze Cycle
The Freeze indicator light will be on. The unit will
be in a Freeze cycle for many minutes.
•
The pump will stop for a few seconds a few
minutes into the freeze cycle
•
The freeze cycle will continue until the water
level in the reservoir drops to its factory set
point, the first time that happens the water
valve will re-fill the reservoir. The second
time it starts the Harvest Cycle.
Harvest Cycle:
•
The Harvest indicator light will be ON,
•
The hot gas valve will open.
•
The purge valve will be open for 74 seconds.
•
The pump is off, it will restart in < 74
seconds.
•
The purge valve closes.
•
The Inlet water valve opens for a short time
•
The Bin Full indicator light will go on and off
as ice falls from the evaporators.
Note: Up to 72 hours of compressor run time may
be needed to achieve rated performance.
9. After about 6 minutes (first cycle after any
restart) the machine will return to a freeze cycle.
Note: After the first harvest, the controller will
adjust the harvest time as needed to release all
ice.
10. The reservoir refills at the beginning of Freeze.
11. Fill out the Customer Evaluation and Warranty
Registration. Send it to Scotsman.
12. Return all panels to their normal positions.
13. Inform the user of the location and telephone
number of the local service company. Inform the
user of the required maintenance of the machine.
Operational Notes:
1. The machine will only shut off on Bin Full at the
end of the Harvest Cycle after the bin fills. That
last harvest cycle will be about 5 minutes long.
2. After switching off on Bin Full, if ice is removed
from the bin, the machine will not restart until it has
been off for 4 minutes. If the Freeze button is
pushed, the machine will restart immediately.
3. If the bin controls sense a bin full signal before
any water is used (float stem up), the machine will
shut off on bin full.
4. When shutting off, the compressor will run for 30
seconds (everything else is off) and then switch
off.
November 2003
Page 16