Page 1
INTRODUCTION
DCE33
The Scotsman DCE33 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 DCE33.
Because it contains information on safety and
maintenance, Scotsman strongly recommends that
this manual be kept where it is readily available.
Table of Contents
Page
Technical Information ............................. 2
Installation:
Water ................................... 3
Plumbing .................................. 4
Add On Kits:
Drain Pump ................................. 9
Door Kit .................................. 10
Reverse Door Swing ............................. 11
Initial Start Up ................................ 12
Operation .................................. 13
Component Location ............................. 14
Maintenance & Cleaning ............................ 15
Winterizing ................................. 15
Cleaning Ice Making System .......................... 16
Adjust Cube Size ............................... 17
Adjust Bin Ice Level .............................. 18
Adjust Timer ................................. 18
Service Diagnosis .............................. 19
Repair:
Curtain ................................... 21
Inlet Water Valve ............................... 21
Timer ................................... 22
Cube Size Control .............................. 23
Bin Thermostat ................................ 23
Water Pump ................................. 24
Parts lists and wiring diagrams are located in the center of the manual, printed on yellow paper.
This manual was printed on
August 1995 recycled paper.
Page 1
Page 2
DCE33
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.U.L.
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.
C, el Air In
Serial Number
Tag Location
Warm Air Out
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and designs are subject to change
without notice.
Y
MOOeLHuMeea
seRIALmJ}Aeen Higher BIn
_ Ice Le'_l
TO_L _OAD_PS
_R_ R13_
_ Operating Ilange
VE_e_ 14tLt.&_laINO_, _1,_._ ?_L LR46Se7
SlS_AL tIUMeEn HAZARDOUS MOVING PARTS
J
Model Number
DCE33A-1WB
DCE33PA-1WB
DCE33A-1 BB
DCE33PA-1 BB
DCE33A-1 SB
DCE33PA-1 SB
SlI_I_IVN;;N_® WITH KICKPLATE RI_MOVED
Basic
Electrical
115/60/1
115/60/1
115/60/1
115/60/1
115/60/1
115/60/1
Maximum
Fuse Size
15 amp
15 amp
15 amp
15 amp
15 amp
15 amp
Add On Kits: Stainless Steel Door Panel Kit is SS33
Cabinet Extensions: KCE18-W (white) KCE18-B (black)
Stainless steel door sleeve conversion kit is K-SS
Drain Pump Kit to convert gravity drain to pump drain is
part number A36892-020 (must also order pump).
Refrigerant Charge is 5 ounces of R-134a. Compressor
HP is 1/8
Off
X
®°"°°°®
WARNING
DO NOT OPERATE
Cabinet Drain
Color Pump?
White No
White Yes
Black No
Black Yes
Black with No
SS door
same Yes
Screwhead
Allowance
2"(5.1 cm) _t__
RF33 ONLY)
* Vs" --,,_
Screwhead
Allowance
o
a
i
1/8"
-- q-IF-
TOP VIEW
Re!rig.
TOP VIEW
Ice
Machine --e
........ .OTE:OOO"SOPEN'80°" 7
\ FROM RIGHT OR /
Overhead View of DCE33 and
Companion Refrigerator Side By Side
213/16" (7.1 cm)
8
rewhead
1 Allowance
Page 3
INSTALLATION
DOE33
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.
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.
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.
June 2000
Page 3
Page 4
DCE33
TO INSTALL: Plumbing
The water supply and drain should be roughed in
and ready at the point of installation. A walt 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 DCE33 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
lush With Floor
Installations on a slab: Use a pump
(DCE33PA-1 B) model and pump the water to the
point of drainage. Pump models wilt 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
Note: When installed in a corner, the door
swing may be limited due to handle contact
with the wall or cabinet face.
Shims
If a floor is to be installed after the ice machine,
shims the thickness of the floor should be installed
under the DCE33 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 --
o __ .
With Trap And Vent,
Draining Is Normal
To Drain
Good Draining
Poor Draining
Good Draining
EXAMPLES OF GRAVITY DRAIN TUBE INSTALLATIONS
June 2000
Page 4
Page 5
TO INSTALL: Plumbing
DCE33
Free Standing Cabinet, Gravity Drain
Model:
All horizontal runs of drain lines must have a 1/4"
per foot fall. An air gap wilt 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
Poor draining will cause a high rate of ice
melting in the bin.
1. Remove the kick plate and the access cover
above it.
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. Route a 5/8" ID (7/8" OD) drain tube through the
back panel of the machine and connect to the bin
drain fitting at the bottom of the bin. Secure with
hose clamps.
Be certain that the drain tube 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 the drain tube 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 and the access cover
above it.
9. Level the unit using the leg levelers.
Connection Detail
January 2002
Page 5
Water Filter
(Recommended)
Shut Off Valve
Water Inlet
INSTALLATION OF WATER AND DRAIN
Floor Drain
Page 6
DCE33
TO INSTALL: Plumbing
Free Standing Cabinet, Pump Model:
1. Remove the kickptate 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 3/8" ID plastic drain tubing
secured to the back of the cabinet.
6. Route the plastic drain tubing 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.
7. Turn on the water and plug in the ice machine.
Pour a couple quarts of water in the bin, the drain
pump should start. Check for water leaks.
8. Replace the kickptate and control box cover.
9. Level the unit using the leg levelers.
ALL PLUMBING MUST MEET LOCAL CODES
THE DCE33 WILL FIT IN A SPACE
151/4"WIDE X 333/4" HIGH.
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
Drain
Connection
Water Sh ut
Off Valve
Water Filter
(Recommended)
Air Gap Device
(Where Required)
WATER AND DRAIN
INS TALLA TION
Drain Tube
From Back Of
Machine
Water Inlet Connection
June 2000
Page 6
Page 7
TO INSTALL: Plumbing
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,
1. Place ice machine in front of installed location.
Adjust leg levelers to approximately correct
position.
2. Remove kickptate and the access cover above it.
3. Route water inlet line, which should be a 1/4"
O.D. copper tube, from walt through ice machine to
the front.
4. Route drain line from wall position through ice
machine. Note: if using a tong horizontal run (more
than 5') the drain should be vented at back of
cabinet.
DCE33
6. Push ice machine into installed position.
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. Route a 5/8"drain tube through the back panel
of the machine and connect to the bin drain fitting
at the bottom of the bin. Secure with hose clamps.
Be certain that the drain tube 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.
13. Replace the kickptate and the access cover
above it. Level as needed.
ALL PLUMBING MUST MEET LOCAL CODES
5. If electrical outlet for ice machine is behind the
cabinet, plug in the ice machine now.
INSTALLATION OF WATER
AND DRAIN _
I
Drain
Connection
Water Filter
(Recommended)
Water inlet Connection
Detail
January 2002
Page 7
Page 8
DCE33
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 walt through ice
machine to the front.
4. Locate coil of 3/8" ID plastic drain tubing
secured to the back of the cabinet.
5. Route plastic drain tube from back of cabinet to
drain connection point.
Note: Often 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 as needed.
ALL PLUMBING MUST MEET LOCAL CODES
THE DCE33 WILL FIT IN A SPACE
151/4"WIDE X 333/4" HIGH.
THE DEPTH OF THE CABINET 18 22" TO
THE FRONT EDGE OF THE HANDLE.
Air Gap Device
(Where Required)
Drain
Con nection
Water Shut Off
Valve
Water Filter
(Recommended)
WATER AND DRAIN
INS TALLA TION
I /_" l
I / _ I
l i" I Drain Tube From
t . Back Of Machine
I
I
I
I
r
I
t
I
Water Inlet Connection
June 2000
Page 8
Page 9
TO INSTALL: Add On Kits
Drain Pump Kit
The DCE33 is delivered either with or without a
drain pump. Models without a drain pump drain
their water by gravity. However, gravity drain
models may be converted to Pump models thru
the installation of a Drain Pump Kit and Drain
Pump.
Two parts are required for this conversion:
Drain pump kit part number ................ A36892-020
Drain pump part number .................. 12-2503-21
DCE33
_Drain Pump
Specific step-by-step instructions are included with
the kit.
June 2000
Page 9
Page 10
DCE33
TO INSTALL: Add On Kits
Door Kit: The door may be modified to accept a
decorator door panel.
Customizing Door Panel:
A custom door panel may be installed in front of
the standard one. Any panel 14 3/4"wide, 28 15/16"
high and 1A" thick or less at the edges may be
used as a decorator panel. Examples of decorator
panels include wood to match the adjacent
cabinets; metal of different colors to match nearby
appliances; or just about any material that will fit.
Scotsman has a stainless steel panel available to
fit this machine, the kit number is SS33.
If the material is less than 1/4" thick, the space
between the new panel and the original may be
filled with cardboard.
1. Remove single screw and the left
hand hinge filler plate from the top of the
door.
2. Remove two screws from the top of
the door and lift off the door handle.
3. Open the door slightly, about
one-third or so; then, remove the front
screw holding the hinge to the door.
Custom Panel,
Thin Panel
Shown With Filler
Parts Involved in Customizing Door Panel
\
4. Loosen the rear screw of the hinge
just enough to allow the door to sag or
move forward. This will allow access to
the top of the channels at the right and
left edges of the door.
5. From the top of the door, insert the
decorator panel (pre-cut) evenly into the
channels; carefully slide the panel all
the way down until the panel is fully into
the bottom channel.
6. Check that the panel is the in all the
way and does not protrude past the top
edge of the door.
7. Push the top hinge corner of the door
IN to align screw hole in the hinge with
the screw hole in the door. Install the
screw previously removed. Tighten the
other screw.
8. Replace the door handle and filler
plate; secure with screws previously
removed.
Hinge
Filler Plate
Hinge
Door
With
Groove
\
Door Handle
August 1995
Page 10
Page 11
AFTER INSTALLATION
Reversing Door Swing:
The hinged side of the door may be reversed to
the other side if desired:
The DCE33 was shipped with the door hinged at
the right. The door and hinges are designed for
placing the hinges on either the right or the left
side of the cabinet. Moving the hinges to the left
allows the door to pivot from the left side.
DCE33
Note: There is a part, packed with the machine,
that is required for this procedure.
1. Open the door and remove the three
screws holding the lower hinge to the Hinge
cabinet.
2. With the door open enough to see both
screws at the top door hinge, remove the two
screws. The door is now free of the cabinet.
3. Remove the single screw and the hinge
filler plate from the top of the door.
4. Install the other filler plate (shipped inside
refrigerator compartment) onto the top corner
of the door where the hinge was.
5. Remove the three plastic plugs from the
top front corner where the hinge will mount.
6. Remove the three plastic plugs from the
lower front corner where that hinge will
mount.
7. Remove the three screws holding the top
hinge to the cabinet. Remove that hinge from
the top and, flipping it upside down, install it
onto the bottom of the door, on the opposite
side using the original screws.
8. Remove the hinge assembly from the
bottom of the door, and flip it upside down;
secure it to the cabinet at the opposite side
top position with the original screws.
Door Handle
Filler Plate
I
9. Hold the door up to the cabinet. Secure
the door to the top hinge with the original
screws.
10. Secure the bottom hinge to the cabinet
with the original screws.
11. Place the plastic plugs removed earlier
into the empty holes.
12. Check operation of the door by opening and
closing it.
Hinge
August 1995
Page 11
! \
/
\
Magnetic
Gasket
Reverse Hinges From Top to Bottom and
Left to Right to Reverse Door Swing
Door
Page 12
DCE33
AFTER INSTALLATION - OPERATION
Final Check List
1. Has the machine been properly uncrated, and
have all packing materials and tape been removed
from inside the bin?
2. Have the installation instructions been followed,
including connecting the machine to water, drain
and electricity?
3. Has the machine been leveled?
Initial Start Up
1 Remove control box
cove r.
2. Rotate timer shaft
clockwise until the cam is
in the harvest position
(switch button out).
3. Turn on water supply.
4. With unit plugged in,
rotate ice machine
control knob to the ON
position.
Button Switch
Cam --_
/..q....,Harvest
/ ',,
Freeze "-.....
Timer Positions
Control
Knob
Timer
How To Use:
The ice machine is extremely simple to use, just
turn the ice machine control knob to the on
position. The DCE33 will automatically begin to
freeze ice and will continue to do so until the bin is
full.
Use the scoop to remove ice and place the ice
scoop in the holder provided (do not leave the
scoop on the ice, as it will gradually disappear into
the ice).
What to expect from the DCE33
The DCE33 will release a batch of 8 ice cubes
about every 30 minutes. At the same time the
cubes fall into the storage bin, water will be
entering the ice machine and draining out.
Ice: The ice cubes are tapered cylinders about
11/4" in diameter at the widest end; taper down to
1" wide at the top; and are 11/8" high. When the
machine is adjusted properly, there should be a 1/4"
indent in the base of the cube. The ice will appear
wet when fresh, this is normal. It may also develop
frost on the outside and look cloudy - this is also
normal (the frost will disappear when liquid is
poured over the ice).
Storage: All restaurant type ice machine operate
on this principal: The ice storage bin is not
refrigerated; instead it's heavily insulated, much
like a picnic cooler or ice chest. If the ice bin were
to be refrigerated, the ice would freeze together
into one very large cluster of ice, and would begin
to evaporate. This would yield ice that is very poor
in quality, and difficult to remove from the machine.
5. Allow the unit to operate for 1 hour, and check
the size of the cubes, if they are not correct, adjust
as recommended on page 17.
6. After the cubes are confirmed to be the correct
size, replace all panels.
7. Locate the nameplate on the control box cover.
Record the serial number and date of start up here
in the manual. Keep the manual handy for future
reference.
Serial Number:
Date of initial start up:
8. Fill out and mail the Warranty Registration and
Customer Audit Report.
The DCE33 will continue to operate until ice builds
up high enough to contact the bin thermostat
sensor tube, then it wilt shut off. Models with a
drain pump will occasionally pump out melt water
when the machine is off. The pump will only be on
for a few seconds.
Run Time: The amount of time the DCE33 wilt run
to replace melted ice is about 2 hours per day. The
amount of time the ice machine will run to replace
ice removed is dependent upon how much is
removed, how clean the ice machine is, and how
hot the air and water supplied to the machine are.
An empty machine wilt usually take about 24-36
hours to re-fill.
August 1995
Page 12
Page 13
OPERATION
DCE33
How does the machine make ice?
There are two distinct cycles: freeze and harvest.
1 freeze cycle + 1 harvest cycle = 1 batch of 8
cubes.
The Freeze cycle happens when water is sprayed
against the freezing surface. The Harvest cycle is
when the ice is released and water enters the
machine. A complete cycle takes about 30
minutes.
Freeze: During the freeze cycle the compressor is
pumping refrigerant, the fan motor is blowing air,
and the water pump is circulating water. As the
refrigerated surface absorbs heat from the water
sprayed against it, that heat is moved to the area
where the fan is blowing air. The heat is
transferred to the air, and the warmed up air is
discharged from the ice machine. At the same time
ice is forming on the refrigerated surface (located
at the upper back of the machine). When the
refrigerated surface gets cold enough, the ice
machine's timer will begin to turn. When it turns far
enough, it will stop the freeze cycle and begin the
harvest.
Harvest: During the harvest cycle the compressor
is still operating, but the spray pump and fan motor
have stopped. Two other components have been
energized; the hot gas valve and the inlet water
valve. These two valves open and warm up the
freezing surface, allowing the cubes to fall into the
bin. The timer is still turning, and when it gets to
the end of the harvest cycle, the freeze cycle will
restart.
How does the machine use water? The ice
machine begins with a fixed charge of water that is
contained in the reservoir. As the water is sprayed
against the freezing surface, the part of water that
does not contain mineral impurities will freeze and
stick to the ice cup molds. The water containing
impurities falls back into the reservoir. Gradually,
during the freezing portion of the ice making cycle,
the water in the reservoir will become highly
concentrated with mineral impurities.
During the harvest cycle fresh water flows into the
machine to dilute the reservoir water and to rinse
the concentrated minerals down the drain.
Schematic Diagram - Shown In
Harvest Cycle
Compressor
Evaporator,
Water
Inlet Cube Molds
Weep
Hole
Spray Jets
Water Tube
Reservoir
Condenser
August 1995
Page 13
Page 14
DCE33
COMPONENT LOCATION
Curtain
Reservoir
Door Gasket
Bin
Thermostat
Bracket
Control Box
Control Knob
Cover
Kickplate
August1995
Page 14
Page 15
MAINTENANCE AND CLEANING
DCE33
What shouldn't be done?
Never keep anything in the ice storage bin that is
not ice; objects like wine or beer bottles are not
only unsanitary, but the labels may slip off and
plug up the drain.
Never allow the machine to operate without
regular cleaning. The machine will last longer if it is
kept clean. Regular cleaning should happen at
least once per year, and preferably twice. Some
water conditions wilt dictate even more frequent
cleaning of the ice making section, and some
carpets or pets will dictate more frequent cleaning
of the condenser.
What should be kept clean?
There are 5 things to keep clean:
1. The outside cabinet & door.
2. The ice storage bin.
3. The condenser.
4. The ice making system.
5. The ice scoop.
How to clean the condenser.
The condenser is like the radiator on a car, it has
fins and tubes that can become clogged. To clean:
1. Remove the kickplate.
2. Locate the condenser surface.
3. Vacuum the surface, removing all dust and lint.
Caution: Do not dent the fins.
Condenser
Surface
4. Replace the kickplate.
Winterizing
1. Clean the machine as explained on the next
page.
How to clean the cabinet.
Wipe off any spills on the surface of the door and
handle as they occur. If anything spilled on the
door or gasket dries onto the surface, wash with
soap and warm water to remove.
How to clean the ice storage bin.
The ice storage bin should be sanitized
occasionally. It is usually convenient to sanitize the
bin after the ice making system has been cleaned,
and the storage bin is empty.
A sanitizing solution can be made of 1 ounce of
household bleach and two gallons of hot (95°F. -
115°F.) water. Use a clean cloth and wipe the
interior of the ice storage bin with the sanitizing
solution, pour some of the solution down the drain.
Allow to air dry.
August
2. Turn off the water supply.
3. Drain the water reservoir. See page 24, Spray
Pump Repair and follow the instructions to remove
the pump hose (step 2, bottom hose only).
4. Disconnect the incoming water line at the inlet
water valve.
Inlet Water
Valve
Water Line
5. Remove control box cover and turn the timer
into the harvest cycle.
6. With the machine operating, blow air through
the inlet water valve; a tire pump could do the job.
7. Drain pump models should have about 1/2gallon
of RV antifreeze (propylene glycol) poured into the
ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
8. Replace control box cover. Switch off and
unplug the machine. Note: To use after winterizing,
1995
Page
15 line. Repeat Initial Start Up (page 12).
reconnect pump hose and water
Page 16
DCE33
CLEANING
How to clean the ice making system.
1. Open the door and
turn the ice machine
control knob to off.
2. Scoop out all of the ice, either discard it or save
it in a ice chest or cooler.
4. Turn the ice machine control to ON.
5. Allow the machine to operate for about 2 hours.
3. Pour 4 ounces of Scotsman Ice Machine
Cleaner (available from a local Scotsman
Distributor or Dealer, ask for part number
19-0343-06 - an 8 ounce bottle) into the ice
machine reservoir.
- ,WARNING
Scotsman Ice Machine
Cleaner contains acids.
These compounds may
cause burns.
If swallowed, DO NOT
induce vomiting. Give
large amounts of water
or milk. Call Physician
immediately. In case of
skin contact, flush with
water. Keep out of the
reach of children.
6. Pour hot (95UF. - 115UF.) water into the bin to
melt the ice that has formed. That ice will likely be
white and frosty looking.
11
7. Clean the bin liner of mineral scale by mixing
some ice machine cleaner and hot water, and
using that solution to scrub the scale off of the liner.
8. Rinse the liner with hot water.
9. Sanitize the bin interior.
10. Replace the ice removed in step 2.
The ice scoop should be washed regularly, wash it
just like any other food container.
August 1995
Page 16
Page 17
ADJUSTMENTS
There are three items that may be adjusted: Cube
Size, Harvest Time, and Bin Level. Note: Cube
Size and Harvest Time adjustments should only be
done by a qualified service person.
Cube size control.
The cube size control should only be adjusted to
bring the cubes to the correct shape, the overall
size cannot be adjusted. Try to adjust the cube
size control when the ice machine is in the harvest
cycle, or in the first 10 minutes of the freeze cycle.
1. Open the door and remove the control box
cove r.
2. Locate the cube size adjustment screw, and to
make fuller cubes, turn the screw clockwise about
DOE33
SIDE VIEW OF CUBES
TOO
BIG
1/4 turn. This will make the freezing cycle longer.
3. To shorten the freezing cycle and make cubes
that are not as full, turn the adjustment screw 1/4
turn counterclockwise.
4. After the next freezing cycle, the cubes should
have responded to the adjustment, if another
adjustment is required, do it early in the freeze
cycle.
CORRECT
SIZE
CUBE SEE ADJUSTMENT
TOO
SMALL
August 1995
Page 17
Page 18
DCE33
ADJUSTMENTS
Bin's ice level.
When the ice machine shuts off the ice level in the
bin should be even with the metal tube inside the
bin. If the ice in the bin is too high or low, turn the
ice machine control knob to adjust the bin
thermostat•
1. To lower the ice level, turn the knob
counterclockwise. Usually a 1/8 turn wilt be
enough•
2. To increase the ice level, turn the knob
clockwise. Usually a 1/8 turn will be enough.
Timer.
The amount of harvest time may be adjusted. It is
preset from the factory at about 3 minutes, which
should be adequate to release all cubes and fill the
reservoir• If the timer needs to be adjusted:
• Unplug or disconnect the electrical power•
kWARNING
Electrical Shock Hazard
Disconnect Electrical
_ower Before Beginning
Removal of Parts
2. Remove the kickptate.
3. Remove the control box cover.
4. Locate the timer, and loosen the set screw that
holds the two halves of the timer cam together.
Timer Set Screw
ADJUSTMENT OF THE TIMER
5. Rotate one half of the cam to open or close the
lower portion of the cam. More of an opening
equals more harvest time and less of an opening
means less harvest time.
6. Tighten the set-screw.
7. Replace the control box cover and kickplate.
8. Reconnect the electrical power.
August 1995
Page 18
Page 19
SERVICE DIAGNOSIS
DCE33
PROBLEM
The machine does not operate
Cubes are too big Cube size control set too cold.
Cubes are too small Cube size control set too warm.
POSSIBLE CAUSE
The machine is unplugged
Breaker tripped or fuse is blown.
Ice machine control turned to OFF.
Bin thermostat open keeping
machine off.
Timer contacts open.
Not enough water.
Cube size control stuck closed -
timer runs all the time.
PROBABLE CORRECTION
Plug the machine in.
Reset breaker/replace fuse - if it
happens again, call for service to
check for a short circuit in the
machine.
Turn ice machine control to ON.
Ice on sensor tube - its then
normal for the machine to be off.
Ice machine in a room below 50
degrees - room needs to be
warmer for machine to operate.
Bin thermostat stuck open, needs
to be replaced.
Replace timer.
Adjust cube size control for a
smaller cube.
Adjust cube size control for a
larger cube.
Check water supply - filter may be
restricted.
Check inlet water valve - inlet
screen may be restricted.
Replace timer.
Cubes are partially formed - have
ragged sides
Machine makes ice, but bin does
not fill up with ice
Cubes are partially formed - are
white at the bottom
Spray jets partially clogged.
The bin should fill up and the
machine shut off in 24-36 hours. If
not, the condenser may be dirty.
The bin drain may be partially
restricted
The air flow to the ice machine
may be obstructed.
Not enough water in the reservoir.
Clean ice making system with ice
machine cleaner.
Clean the condenser.
Clean out the drain, check the
installation.
Check the installation - the
machine must be free of
obstructions at the kick plate.
Check water supply - filter may be
restricted
Check inlet water valve - inlet
screen may be restricted.
Check for a water leak at the
reservoir.
Water leaking into bin from torn or
mis-positioned curtain. Check
curtain position and condition.
Reposition or replace as needed.
June 2002
Page19
Page 20
DCE33
SERVICE DIAGNOSIS
PROBLEM
No ice falling in bin, but machine
operates
POSSIBLE CAUSE
Ice may be stuck in the
evaporator and the unit is "frozen
up".
Too much heat load.
No water spray
Cube size control will not close
No airflow
Not enough refrigerant
Restricted system
Hot gas valve leaks thru
Compressor will not operate or
pumps poorly.
PROBABLE CORRECTION
Check water supply - filter may be
restricted
Check inlet water valve - screen
may be restricted, or valve does
not operate.
Hot gas valve may not operate -
check and repair/replace.
Harvest time set too short - timer
needs adjustment.
Inlet water valve leaks thru, needs
to be replaced.
Water pump does not work,
replace it.
Water leak from reservoir, locate
and repair.
See "Too much heat load" or "not
enough refrigerant"
Control defective - must be
replaced.
Fan motor not turning, needs to
be replaced.
Fan blade broken, needs to be
replaced.
Condenser completely blocked
up, needs cleaning.
Add low side access valve, locate
leak, recover refrigerant, repair,
replace dryer, evacuate and
weigh in the nameplate charge.
Add low side access valve,
recover refrigerant, replace dryer,
evacuate and weigh in the
nameplate charge.
Add low side access valve,
recover refrigerant, replace hot
gas valve and dryer, evacuate
and weigh in the nameplate
charge.
Start relay or capacitor needs to
be replaced.
Add low side access valve,
recover refrigerant, replace
compressor and dryer, evacuate
and weigh in the nameplate
charge.
August 1995
Page 20
Page 21
REPAIR
kWARNING
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
DCE33
Inlet WaterValve
The inlet water valve may need to be cleaned or
replaced. If there is not enough water coming into
the machine, the valve may need to be cleaned. If
the valve does not work at all, or does not shut off
tightly, it should be replaced.
1. Unplug or disconnect electrical power.
Curtain
The curtain keeps the water that sprayed by the
pump from falling in the bin.
The "sheet" type curtain is replaced by:
1. Removing 4 screws holding the curtain and the
curtain stiffener to reservoir.
2. Pulling the curtain and curtain stiffener out of the
machine.
3. Replace with a new curtain and install as shown.
Curtain
Sheet
Type:
Stiffener
Bottom Edgq
Angle to Rear
Front Edge
of Reservoir
Curtain and Curtain Stiffener MUST Be Installed
As Shown
Curtain
Screw
2. Shut off water supply
3. Remove kickplate
4. Remove the control box cover.
5. Unscrew flare nut from inlet water valve inlet. If
the valve is being replaced, proceed to step 10.
6. Unscrew brass fitting from body of inlet water
valve.
SERVICE OF THE INLET
WATER VAL VE
Inlet Water Valve
\
Screen
Inlet
Outlet
Check the screen of the valve, it may be clogged
and is restricting the flow of water into the
machine. If that is the problem, clean the screen
and reverse the steps so far to reassemble.
7. Loosen the screws in the back of the control
box, and remove the inlet water valve.
8. Remove the discharge hose from the outlet of
the water valve.
9. Unplug the wire harness from the top of the
valve.
10. Replace with a new valve, and reverse the
above steps to reassemble.
August 1995
Page 21
Page 22
DCE33
REPAIR
&WARNING
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
Timer
The timer may need to be replaced if it does not
turn, or if it turns and then stops (except at the end
of the harvest cycle - the timer will ALWAYS stop at
the end of the harvest cycle), or if the microswitch
mounted to it does not switch the machine from
the freeze to the harvest and back again.
Caution: The timer is controlled by the cube size
control, and wilt not turn if the cube size control
does not work.
1. Unplug or disconnect the electrical power to the
ice machine.
2. Remove the kickplate.
3. Remove the control box cover.
4. Remove the screws holding the timer to the
control box.
Timer
5. Disconnect the wires at the timer microswitch.
6. Disconnect the wires from the timer motor at the
terminal board.
7. Remove the timer from the ice machine.
8. Reverse the above steps to replace.
August 1995
Page 22
Page 23
REPAIR
kWARNING
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
Cube Size Control
The cube size control controls the timer during the
freeze cycle. If the timer will not start, the cube
size control may be the problem. Removal of the
cube size control requires removal of the ice
storage bin.
1. Unplug or disconnect the electrical power to the
ice machine.
DCE33
Bin Thermostat
The bin thermostat is the automatic on-off control
for the ice machine.
1. Unplug or disconnect the electrical power to the
ice machine.
2. Pull the machine out from its installed location.
3. Remove the back panel.
4. Remove the kickplate.
5. Remove the control knob
6.. Remove the control box cover.
7. Remove the screws holding the bin thermostat
to the control box.
Capillary Tube
2. Remove the kickplate.
3. Go thru the steps to remove the ice storage bin.
4. Remove screws holding cube size control body
to control box.
5. Remove wires connected to the cube size
control.
6. Carefully pull cube size control and attached
capillary tube from the control box, and follow the
capillary tube to the top of the evaporator.
7. The end of the cube size control is inserted into
a socket attached to the evaporator.
8. Remove the cube size control from the socket
CUBE SIZE CONTROL
REPLA CEMENT
Socket
Pig Tail
1
\
\
,\
\
8. Remove the wires attached to the bin
thermostat.
9. Pull the bin thermostat and capillary tube from
the control box, trace the capillary tube to the bin
level control tube and remove the capillary tube
from the tube. Remove the bin thermostat from the
ice machine.
10. Reverse the above steps to replace.
Bin Thermostat
and from the ice machine.
9. Reverse the above steps to replace.
10. Adjust the cube size control per the adjustment
sequence on page 16.
August 1995
Page 23
Page 24
DCE33
REPAIR
kWARNING
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
Spray Pump
The water pump that forces the water from the
reservoir through the spray jets.
1. Disconnect electrical power.
2. Open the bin door and locate the three hoses
connected to the water pump.
A. Loosen the hose clamps from the pump hoses.
B. Remove the pump hoses from their connections.
3. Disconnect water and drain tubes.
Spray Jets
Spray Jets are small nozzles that are under the
freezing surface, they spray a narrow pattern of
water at the freezing surface. If plugged or
restricted, poorly shaped ice cubes will form.
If the spray jets are removed the o-rings between
the water inlet tube and the spray jet bases must
be in place (see illustration).
Curtain
Curtain Stiffener
Reservoir
Body
Pump Hose Removal
Spray Pump
(for re fe ren_. Suction
Hose Hose Clamp
Reservoi!
(for reference)
4. Carefully pull machine out from its installed
location to expose the back panel.
5. Remove the back panel.
6. Disconnect wires from the top of the pump
motor.
-_ Cube
Chute
7. Remove two screws holding pump to bin, and
remove the pump from the ice machine.
8. Reverse the above steps to re-assemble.
December 1995
Page 24
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