The Scotsman DC33 is a restaurant type ice
machine designed for home use. It produces the
same high quality ice as large Scotsman
commercial ice cube machines, and stores that ice
in a heavily insulated storage bin.
This service manual is intended as a resource for
people installing, using, and servicing the DC33.
Because it contains information on safety and
maintenance, Scotsman strongly recommends that
this manual be kept where it is readily available.
Parts lists and wiring diagrams are located in the center of the manual, printed on yellow paper.
July 1994
Page 1
This manual was printed on
recycled paper.
DC33
TECHNICAL INFORMATION
Scotsman Ice Systems are designed and
manufactured with the highest regard for safety
and performance. They meet or exceed the
standards of U.L., and C.S.A.
Scotsman assumes no liability or responsibility of
any kind for products manufactured by Scotsman
that have been altered in any way, including the
use of any parts and/or other components not
specifically approved by Scotsman.
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and designs are subject to change
without notice.
Model
Number
DC33A-1W115/60/1 15 amp
DC33PA-1W 115/60/1 15 amp
Basic
Electrical
Maximum
Fuse Size
CompressorHPDrain
Pump?
1
⁄
8
1
⁄
8
No
Yes
Add On Kits: Stainless Steel Door Panel Kit is SS33
Warm Air Out
Overhead View of DC33
and RF33 Side By Side
Cool Air In
Serial Number
Tag Location
Drain Pump Kit to convert gravity drain to pump drain is
part number 12-2460-21
Refrigerant Charge is = 5 ounces of R12.
DC33 Cabinet Views
July 1994
Page 2
INSTALLATION
DC33
To properly make and store ice, the DC33 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 50
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 40
0
F., and the maximum is 1000 F.
0
F., and the maximum is 1000 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 will 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 DC33 will have a lower mineral
content than the water it was made from
Purer water will 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 DC33 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.
.
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 DC33 models:
The DC33A-1W 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 DC33PA-1W has a built in drain pump that will
pump water up to a drain point, such as a nearby
sink.
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.
July 1994
Page 3
Good Draining
DC33
TO INSTALL: Plumbing
The water supply and drain should be roughed in
and ready at the point of installation. A wall outlet
directly behind the ice machine will make
undercounter installation easier. All electrical,
water and drain connections must conform to local
codes.
Installation Cautions: Although the DC33 has
been designed to be serviced in place, in some
cases it may be necessary to pull the unit out for
service. For that reason do not restrict access to
the cabinet at the front - top and bottom.
Install Unit
Flush With Floor
Installations on a slab: Use a pump
(DC33PA-1A) model and pump the water to the
point of drainage. Pump models will pump 1 story
high.
Installations over a crawl space or basement:
Either gravity drain or pump model units may be
used, if there is not enough room behind the
machine for a drain/waste receptacle, the drain will
have to be below the floor.
ALL PLUMBING MUST MEET LOCAL CODES
Shims
If a floor is to be installed after the ice machine,
shims the thickness of the floor should be installed
under the DC33 to keep the machine level with the
floor. Also, allow 1/8" clearance on each side of the
cabinet.
From Ice Machine
Normal Drain Line, Pitched
Down From Ice Machine
With Trap, Causes Poor Draining
With Trap And Vent,
Draining Is Normal
To Drain
Good Draining
Poor Draining
EXAMPLES OF GRAVITY DRAIN TUBE INSTALLATIONS
July 1994
Page 4
TO INSTALL: Plumbing
DC33
Free Standing Cabinet, Gravity Drain
Model:
All horizontal runs of drain lines must have a 1/4"
per foot fall. An air gap will likely be required
between the ice machine drain tube and the
drain/waste receptacle. A stand pipe with a trap
below it would be acceptable for the drain/waste
receptacle. A floor drain is also acceptable.
FOLLOW ALL LOCAL PLUMBING CODES
Schematic Side
View of Drain
System, Use Began
June 1994
Reservoir
5. Route the drain tube from the back of the
machine to the front and connect to the bin drain
tube. Secure with hose clamps.
On units built after serial number 735675-12Z June 1994: When replacing an exisiting gravity
drain unit where a
the hose must be replaced by one which is a
5
⁄8" drain line (hose) was used,
1
⁄2"
I.D. Failure to do this may result in a loose
connection and water leak.
Be certain that the
1
⁄2" I.D. drain hose is pushed up
well past the barbs on the drain fitting. If needed to
ease installation, soak the drain hose in hot water
just before connecting to the fitting.
6. Route a drain line from the ice machine to the
drain/waste receptacle. Note: if using a long
horizontal run (more than 5’) the drain should be
vented at back of cabinet.
7. Turn on the water supply and check for leaks.
8. Replace the kick plate.
9. Level the unit using the leg levelers.
Gravity Drain:
Connect
Drain Hose Here
1
⁄2" I.D.
Poor draining will cause a high
rate of ice melting in the bin.
1. Remove the kick plate.
2. Route the water supply, which
should be a 1/4" O.D. copper tube
through the back of the cabinet to the
front.
3. Install a flare nut and flare the end
of the tube.
4. Flush the water line and fasten the
flare nut to the male flare on the inlet
water valve.
Drain Detail Up To
735675-12Z
(June 1994)
Internal Reservoir Drain Hose
Drain hose was behind the bin
prior to serial number 735675-12Z.
Water Filter
(Recommended)
Shut Off Valve
Floor Drain
Water Inlet
Connection Detail
INSTALLATION OF WATER AND DRAIN
July 1994
Page 5
DC33
TO INSTALL: Plumbing
Free Standing Cabinet, Pump Model:
1. Remove the kickplate and control box cover.
2. Route the water supply, which should be a 1/4"
O.D. copper tube through the back of the cabinet
to the front.
3. Install a flare nut and flare the end of the tube.
4. Flush the water line and fasten the flare nut to
the male flare on the inlet water valve.
5. Locate the coil of plastic tubing shipped in the
storage bin.
6. Connect the coiled tubing to the discharge port
of the drain pump.
7. Route the discharge line from the drain pump to
the drain point connection. Do not connect to a
drain/waste line below a trap. Connect the
discharge line to the drain, per local codes. An air
gap will likely be required between the ice machine
drain tube and the drain/waste receptacle.
8. Turn on the water and plug in the ice machine.
Pour in a couple quarts of water, the drain pump
should start. Check for water leaks.
9. Replace the kickplate and control box cover.
10. Level the unit using the leg levelers.
ALL PLUMBING MUST MEET LOCAL CODES
THE DC33 WILL FIT IN A SPACE
1
15
⁄4" WIDE X 333⁄4" HIGH.
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
Air Gap Device
(Where Required)
Drain
Connection
Water Shut
Off Valve
Water Filter
(Recommended)
WATER AND DRAIN
INSTALLATION
Drain Tube
From Back Of
Machine
July 1994
Page 6
Water Inlet Connection
TO INSTALL: Plumbing
INSTALLATION OF WATER
AND DRAIN
Water Inlet Connection
Detail
DC33
Built In, Gravity Drain Model:
The drain and inlet water tubes must be plumbed
before connecting to the ice machine. All horizontal
runs of drain lines must have a 1/4" per foot fall. An
air gap will likely be required between the ice
machine drain tube and the drain/waste
receptacle. A stand pipe with a trap below it would
be acceptable for the drain/waste receptacle.
Note: Poor draining will cause a high rate of
ice melting in the bin.
Schematic Side View
of Drain System, Use
Began June 1994.
Reservoir
7. Cut off water inlet line at required length.
8. Flush water line. Place flare nut on inlet water
line and flare the end of the copper tube.
9. Attach flare nut to the male flare on the inlet
water valve.
10. Cut off the drain tube to the required length.
11. Connect the drain tube to the drain fitting at the
front of the cabinet. Use hose clamps to secure
tubes to fittings.
On units built after serialn number 735675-12Z June 1994: When replacing an exisiting gravity
drain unit where a
the hose must be replaced by one which is a
5
⁄8" drain line (hose) was used,
1
⁄2"
I.D. Failure to do this may result in a loose
connection and water leak.
Be certain that the
1
⁄2" I.D. drain hose is pushed up
well past the barbs on the drain fitting. If needed to
ease installation, soak the drain hose in hot water
just before connecting to the fitting.
12. Turn on the water supply and check for leaks.
Gravity Drain:
Connect
Drain Hose Here
1
⁄2" I.D.
1. Place ice machine in front of
installed location. Adjust leg levelers to
approximately correct position.
2. Remove kickplate.
3. Route water inlet line, which should
be a 1/4" O.D. copper tube, from wall
through ice machine to the front.
4. Route drain line from wall position
through ice machine to the front. Note:
if using a long horizontal run (more
than 5’) the drain should be vented at
back of cabinet.
13. Replace the kickplate.
ALL PLUMBING MUST MEET LOCAL CODES
Water Filter
(Recommended)
Shut Off Valve
5. If electrical outlet for ice machine is
behind the cabinet, plug in the ice
machine now.
6. Push ice
machine into
installed position.
Drain Detail Up
To June 1994
Production
Drain Connection
July 1994
Page 7
DC33
TO INSTALL: Plumbing
Built In Pump Model:
1. Place ice machine in front of installed location.
Adjust leg levelers to approximately correct
position.
2. Remove kickplate and control box cover.
3. Route water inlet line from wall through ice
machine to the front.
4. Locate coil of plastic tubing shipped in ice
storage bin.
5. Connect tubing to discharge port of drain pump
and route drain line from back of cabinet to drain
connection point.
Note: Usually an air gap is required by local codes
between the ice machine drain tube and the drain
receptacle.
6. If electrical outlet for ice machine is behind the
cabinet, plug in the ice machine now.
7. Push ice machine into installed position.
8. Cut off water inlet line at required length.
9. Flush water line. Place flare nut on inlet water
line and flare the end of the copper tube.
10. Attach flare nut to the male flare on the inlet
water valve.
11. Turn on the water supply, and make sure that
the ice machine is plugged in and the power is on.
12. Pour a couple of quarts of water into the
storage bin, the drain pump should start and pump
water out. Check for leaks.
13. Replace kickplate and control box cover.
14. Level the cabinet left to right.
ALL PLUMBING MUST MEET LOCAL CODES
THE DC33 WILL FIT IN A SPACE
1
15
⁄4" WIDE X 333⁄4" HIGH.
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
Drain
Connection
Water Shut Off
Valve
Water Filter
(Recommended)
Air Gap Device
(Where Required)
WATER AND DRAIN
INSTALLATION
Drain Tube From
Back Of Machine
July 1994
Page 8
Water Inlet Connection
Loading...
+ 16 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.