Installation; Water - Scotsman DCE33 Series User Manual

INSTALLATION
To properly make and store ice, the DCE33
requires access to air, potable water, 115 volt
electricity and a drain. The machine must be
installed indoors, in a controlled environment.
Air: The ice machine uses a fan to take in room air
at the front of the machine through the right side of
the kick plate. It discharges warm air out the left
side of the kick plate. Anything placed in front of
the kick plate will restrict air flow and cause a
decrease in performance and efficiency. The
minimum air temperature the machine will operate
in is 500 F., and the maximum is 100 ° F.
Water Supply: The ice machine requires a
continuous supply of potable water at no less than
20 p.s.i.g, of flowing pressure. Static water
pressure should not exceed 80 p.s.i.g. The
minimum water temperature the machine will
operate in is 400 F., and the maximum is 100 ° F.
Water Quality:
There is no such thing as "pure" water; all water,
including potable water supplied by municipalities,
contains some "impurities". Water absorbs
impurities from the air as rain and/or as it flows
through the ground. Some of the impurities are
solid particles, these are known as suspended
solids, and a fine particle filter witl remove them.
Other impurities are chemically bonded to the
water molecules, and cannot be filtered out, these
are called dissolved solids.
Ice made by the DCE33 will have a lower
mineral content than the water it was made
from.
Purer water witl freeze first in the ice making
molds. The reason for this is that anything
dissolved in water lowers the water's freezing
temperature.
This concentrates most of the impurities in the ice
machine water reservoir where they may form
hard deposits known as scale. The DCE33 dilutes
the concentration of minerals by over-filling the
reservoir during the harvest cycle (with the excess
water flowing down the drain). About 3 quarts of
water flow into the unit each cycle. About 1 quart
of that rinses the reservoir and goes down the
drain.
Some impurities will inevitably remain, and will
stick to the parts in the machine, and will cause
malformed ice cubes. Eventually, built up mineral
scale can shorten machine life.
DOE33
To keep the machine operating properly, these
impurities or minerals will have to be regularly
dissolved by an acid cleaning, using Scotsman Ice
Machine Cleaner. Directions for this may be found
in the section under cleaning.
In general, it is always a good idea to filter the
water. A water filter, if it is of the proper type, can
remove taste and odors as well as particles. Some
methods of water treatment for dissolved solids
include reverse osmosis, and polyphosphate
feeders. A reverse osmosis system should include
post treatment to satisfy the R.O. water's
"aggressiveness".
Deionized water is not recommended.
Because water softeners exchange one mineral
for another, Scotsman does not recommend their
use for ice machines. Where water is very hard,
softened water may result in white, mushy cubes
that stick together.
Scotsman suggests, that if in doubt about the
water, that a local point of use water specialist be
contacted for recommendations on water
treatment.
Electricity: The machine is supplied with a cord,
and may be plugged into a wall outlet. The ice
machine should be the only device using that
circuit.
The fuse (or circuit breaker) size should be 15
amps.
Drain: There are two DCE33 models:
The DCE33A-1 is a gravity drain model that
requires a drain tube that's pitched down from the
outlet at the back of the cabinet to the connection
to the sanitary sewer.
The DCE33PA-1 has a built in drain pump that will
pump water up to a drain point, such as a nearby
sink.
June 2000
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