Technical information

12/01/02
DCM SEQUENCE OF OPERATION
DCM sequence for the ice making unit is similar to the F-
500, with a delay of the compressor at start up and a delay
of the gear motor at shut down.
A periodic flush is also incorporated in the DCM units. All
DCM models have periodic agitation in the bin to eliminate
ice bridging. The DCM- 240 model uses a solid state relay to
turn the gear motor for .2 seconds every 90 minutes. On
DCM-500 and 750 models, the solid state timer board will
start the agitation motor for .6 seconds every 12 seconds
of accumulated dispensing time.
FLAKER/DCM PRODUCTION CHECK
Checking the production on a F/DCM is a simple process.
To check the production you will need a bucket or pan to
catch the ice and a set of scales to weigh the ice. After the
unit has operated for 10 to 20 minutes, catch the ice pro-
duction for 10 full minutes. Weigh the ice to establish the
batch weight. Multiply the batch weight by 144 for the total
production in 24 hours. Some prefer to catch the ice for 20
minutes and multiply the weight by 72 for a more realistic
production check. It is true that a longer catch is more
accurate, however, it doubles your test time and may only
show a 1 to 2% difference in production. Performing a
production check is an excellent way to prove proper F/
DCM operation.
FLAKER PERIODIC FLUSH
Beginning with the F-450M and larger flakers, a periodic
flush cycle is included. A 12 hour timer will cycle the unit
down and open the flush valve which allows the complete
water system to drain. The unit will remain off for 20 min-
utes which allows any ice remaining in the evaporator to
melt and flush the evaporator walls and mechanical seal
out. The inlet water valve is not energized during this flush
period. The unit will automatically restart after 20 minutes
on the flush timer.
The F-500 will flush when the bin control is open.
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12/20/03
2/20/03