SCCG50 & SCCP50
Service Manual
Introduction:
This ice machine is the result of Scotsman’s
decades of experience as an industry leader in the
design and manufacture of both commercial and
residential ice machines.
This manual includes the information needed to
install, start up and maintain the ice machine. Note
any Caution or Warning indicators, as they provide
notice of potential hazards. Keep this manual for
future reference.
Table of Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Cabinet Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Door Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Door Panel Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Custom Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Door swing change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Installation: Water & Drain
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Gravity Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Electrical
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Cube Size Adjustment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
Harvest Time Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14
Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16
How to clean the condenser and winterize. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17
How to remove scale from the ice making system. . . . . . . . . . . . . . . . . . . . . . . . Page 18
System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
Components
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22
Performance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 23
Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24
Thermistor Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 26
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27
Removal and Repair
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28
Removal and Repair
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 29
Removal and Repair - Cabinet Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 30
Refrigeration Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32
June 2008
Page 1
SCCG50 & SCCP50
Service Manual
Specifications
This ice machine is designed to be used indoors, in
a controlled environment. It can be used in a wide
variety of environmental conditions, but there are
limits. Use outside of the listed limitations is misuse
and will void the warranty.
Air temperature limits:
The ice machine will operate adequately within the
limits, but functions best in temperatures between
70 and 80 degrees F.
• Minimum – 50 degrees F. (10oC)
• Maximum – 100 degrees F. (38oC)
Water temperature limits:
• Minimum – 40 degrees F. (4.5oC)
• Maximum – 100 degrees F. (38oC)
Water pressure limits:
• Minimum – 20 psi (1.4 bar)
• Maximum – 80 psi (5.5 bar)
Options:
Door Panel kits: Finished door panels are available
from Scotsman for attachment to the machine, or a
custom panel can be made.
Kit Number Panel Finish
Handle Finish
KDFW
White
White
KDFWS
White
Stainless Steel
KDFB
Black
Black
KDFBS
Black
Stainless Steel
KDFS
Stainless Steel
Stainless Steel
Kickplate Extension: In some situations the leg
levelers will be extended enough to become visible.
A kit to extend the kickplate over the legs is KKPF.
Cabinet Stability: In some free standing
installations it may be prudent to add a bracket that
secures the back of the cabinet to a wall. That kit
number is KATB.
Drain Conversion:
Because the ice machine is making a food product,
the water supply to the ice machine must be
A gravity drain model can be converted to a drain
potable, or fit for human consumption.
pump model by installing a drain pump kit. The
drain pump kit consists of a drain pump, wiring
harness and associated tubing. The kit number is
Electrical
A39462-021.
• 115 volt, 60 Hz. Plug into dedicated 15 amp
Warranty Information
circuit.
• Power consumption: 275 - 400 Watts. Varies
Warranty information is supplied separately from
during Freeze and Harvest cycles.
this manual. Refer to it for coverage. In general, the
warranty covers defects in materials or
Voltage limits:
workmanship and does not cover corrections of
installation errors or maintenance.
• Minimum - 104 volts
• Maximum – 126 volts
Models: There are six models, all air cooled:
•
•
•
•
•
•
SCCP50M-1WU – Pump model, white cabinet
SCCG50M-1WU – Gravity drain model, white cabinet
SCCP50M-1BU – Pump model, black cabinet
SCCG50M-1BU – Gravity drain model, black cabinet
SCCP50M-1SU – Pump model, stainless cabinet
SCCG50M-1SU – Gravity drain model, stainless cabinet
July 2008
Page 2
SCCG50 & SCCP50
Service Manual
Cabinet Layout
FLOOR DRAIN
ACCESS HOLE
3 7/8"
20 3/8"
22"
.75 SHEET METAL DOOR FRONT
.63 MIN. CABINET DOOR
14 7/8"
29 1/4"
33 3/8" MIN.
34 3/8" MAX.
DRAIN
FLEXIBLE TUBING
3/8 I.D. PUMP MODEL (INCLUDED)
5/8 I.D. GRAVITY MODEL (NOT INCLUDED)
POTABLE WATER INLET
1/4" COMPRESSION FITTING
4"
AIR OUT
AIR IN
2 1/2"
2 3/4"
1" LEG ADJUSTMENT
(4) PLACES
June 2008
Page 3
1 1/2"
115 V
POWER CORD
3 3/4"
7 3/8"
3 1/4"
SCCG50 & SCCP50
Service Manual
Air flow
The machine takes in room temperature air at the
lower right front and forces warm air out the lower
left front. Restricting the airflow will adversely affect
the ability of the ice machine to make ice.
Control Panel
Ice Making
Area
Warm Air Out
Air Intake
Scotsman Ice Systems are designed and
manufactured with the highest regard for safety
and performance. They meet or exceed the
standards of agencies like 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.
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and designs are subject to change
without notice.
June 2008
Page 4
SCCG50 & SCCP50
Service Manual
Water Quality
All water, including potable water supplied by
municipalities, contains some impurities or
minerals. 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.
Filters and Treatment
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.
RO Water
Ice made by this machine will have a lower mineral
content than the water it was made from. This is
due to the method of making ice. 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 machine dilutes the
concentration of minerals by over-filling the
reservoir during the harvest cycle (with the excess
water flowing down the drain). s. Between 2 and 4
pints of water flow into the unit each cycle.
Between 1 and 3.5 pints of that rinses the reservoir
and goes down the drain.
This machine can be supplied with Reverse
Osmosis water, but the water conductivity must be
no less than 10 microSiemens/cm. A reverse
osmosis system should include post treatment to
satisfy the R.O. water’s potential aggressiveness.
Deionized water is not recommended.
Because water softeners exchange one mineral for
another, softened water may not improve water
conditions when used with ice machines. Where
water is very hard, softened water could result in
white, mushy cubes that stick together.
If in doubt about the water, contact a local point of
use water specialist for recommendations on water
Some impurities will inevitably remain, and will stick treatment.
to the parts in the machine, and will cause
malformed ice cubes. Eventually, built up mineral Installation Overview
scale can shorten machine life.
The ice machine must:
To keep the machine operating properly, these
impurities or minerals will have to be regularly
• be connected to cold, potable water
dissolved by an acid cleaning, using Scotsman Ice
• be connected to a drain
Machine Scale Remover. Directions for this may be
• be connected to the proper power supply
found in the section under cleaning.
• be able circulate air through the vents at the
front.
Note: Do not build in so that the door is recessed.
June 2008
Page 5
SCCG50 & SCCP50
Service Manual
Door Covering
Door Panel
Custom Panel
The ice machine is supplied without a conventional
door covering so it can be decorated to the user’s
preference. Scotsman offers several coverings
including white, black and stainless steel. In
addition, a custom built panel can be placed onto
the door.
A custom panel of wood or other material not
exceeding 15 lb can be attached to the door.
Attachment is from the ice side of the door. Holes
are provided in the door for this purpose.
See instructions in information packet to create and
attach a custom panel:
Door Panel Attachment
To attach a Scotsman supplied panel:
Note: If door swing is to be changed, it must be
done before panel is attached.
The panel will be held on by 6 sheet metal screws
and 2 machine screws.
1. Remove the gasket and retain for later use.
2. If the door panel is stainless steel, remove any
plastic covering the stainless steel panel.
3. Place the panel onto the outside of the door,
and secure it to the door using two machine
screws, located at the left center and right
center.
4. Fasten the panel to the door using the 6 sheet
metal screws. In the hinge area, use the
outermost screw holes.
5. Place the covers over the hinge areas, and
secure each cover to the door using a sheet
metal screw.
6. Insert hole plug over screw installed in step 5.
7. Return the gasket to its original position.
June 2008
Page 6
SCCG50 & SCCP50
Service Manual
Door Panel Attachment
Use Upper
Hole at the
Top
Scotsman
Door Panel
Gasket
Machine
Screw
Hole Plug
Use Lower
Hole at the
Bottom
Cover
June 2008
Page 7
SCCG50 & SCCP50
Service Manual
Custom Panel
A custom panel of wood or other material not
exceeding 15 lb can be attached to the door.
Attachment is from the ice side of the door. Holes
are provided in the door for this purpose.
To create and attach a custom panel:
10. Mount panel to door using wood screws or
supplied panel mounting screws.
Note: When installed Ice machine must be adjusted
for height to position top of door to desired
clearance.
• Panel width: 14 7/8”
• Panel height: Between 29 3/8” and 30 3/8”.
• Panel thickness: 5/8” to ¾”
1. Measure overall height of cabinet
opening where ice machine will be
(floor to bottom of countertop edge).
13 9/16"
6 25/32"
2. Determine desired kickplate
space (from bottom of door to floor).
This could be equal to the adjacent
cabinet’s kickplate space or another
space the user wants.
8 1/4"
13/16"
4 1/8"
13/32"
3. Subtract kickplate space from
cabinet opening.
4. Subtract 1/8 or more for clearance
space between top of door and
bottom of countertop edge from
cabinet opening. This is the
maximum door length.
14 11/16"
Ø 1/8"
TYP. (10)
5. Cut panel to width.
30 3/8"
29 3/8"
6. Cut panel to length (cabinet space
- kickplate space - top clearance =
length).
7. Determine top of panel.
8. Mark hole locations using drawing
on the back of these instructions.
Drawing assumes top of panel will
be flush with top of door. Measure
hole locations from the top of the
panel.
9. Drill pilot holes for wood screws.
Use drill stop to prevent drilling
through the panel.
13 31/64"
13/32"
{Centerline}
14 7/8"
June 2008
Page 8
SCCG50 & SCCP50
Service Manual
Door swing change
Note: Prior models had separate hinge brackets
and different directions to change swing.
4. Remove hole plugs or screws from unit's new
hinge locations, set aside.
Moving the hinges allows the door to open from
either the left or right side. Change swing before
attaching door panel.
5. Move screws loosened in step 1 to opposite
location.
To change:
1. Remove innermost screw holding each hinge
to cabinet, loosen the other.
6. Install screws or plugs removed in step 4 to the
unit's original hinge location to fill the holes.
7. Remove the upper hinge from the door and
move it to the door's opposite side, bottom
location. Secure using the original screws.
Note: If door panel is attached, it must be removed
to access hinge screws and to reverse handle
position.
Remove
8. Remove the original lower hinge and move it to
the door's opposite side, upper location.
Secure using the original screws.
Loosen
9. Install pocket covers and hole plugs onto door.
10. Attach the door to the cabinet using the original
screws.
Installation Notes
Built In Situations: If a finished floor is to be
2. Slide door to the side and remove from cabinet. installed in the area after the ice machine has been
built in, shims the expected thickness of the floor
should be installed under the unit to keep the
Pocket
Plug
machine level with the planned floor level.
Cover
Installations on a slab: Use a pump model and
pump the water to the point of drainage. Pump
models will pump 1 story (10 feet) 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.
3. Remove plug and hinge pocket covers from
door.
Note: When installed in a corner, the door swing
may be limited due to handle contact with the wall
or cabinet face.
Note: There are either plugs or screws in the holes
where the hinges will mount. They must be moved.
January 2012
Page 9
SCCG50 & SCCP50
Service Manual
Door swing change
The door can be attached to open with hinges on
Note: If door panel is attached, it must be removed
the left or right using new brackets shipped loose in to access hinge screws and to reverse handle
the ice bin. Retain all screws for re-use.
position.
To change:
8. Remove the upper hinge and move it to the
door's opposite side, bottom location. Secure
using the original screws.
1. Remove innermost
screw holding each
hinge to cabinet, loosen
the other.
9. Remove the original lower hinge and move it to
the door's opposite side, upper location.
Secure using the original screws.
2. Slide hinges to the side
and remove door from
cabinet. Remove
screws loosened in step
1 from both hinge brackets.
10. Install a screw removed in step 2 in outermost
hole of upper and lower cross braces.
3. Remove two screws securing top panel to
back, pull top panel back and remove from
cabinet.
4. Remove two screws at
the top and lift the door
hinge bracket out of the
cabinet. Replace with the
one supplied loose with
the machine. Fasten it to
the cabinet using the
original screws.
Door Hinge
Bracket
11. Attach the door to the cabinet using the original
screws.
12. Return kickplate and front service panel to their
original positions and attach to the cabinet
using the original screws.
Installation Notes
Built In Situations: If a finished floor is to be
installed in the area after the ice machine has been
built in, shims the expected thickness of the floor
should be installed under the unit to keep the
machine level with the planned floor level.
5. Return the top panel to the cabinet and fasten
it with the original screws.
6. Remove kickplate and front service panel.
7. Remove two front screws and two bottom
screws holding the bottom cross brace to the
cabinet. Replace the brace with the one
supplied loose with the machine. Secure it
using the original screws.
Installations on a slab: Use a pump model and
pump the water to the point of drainage. Pump
models will pump 1 story (10 feet) 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.
Note: When installed in a corner, the door swing
may be limited due to handle contact with the wall
or cabinet face.
Screw Below
September 2011
Page 9
SCCG50 & SCCP50
Service Manual
Installation: Water & Drain
Water Supply, all models: The recommended water
supply tubing is ¼ inch OD copper. Stainless steel
flex or reinforced PVC tube may also be used.
Install an easily accessible shut-off valve between
the supply and the unit. This shut-off valve should
not be installed behind the unit.
Note: Do not use self-piercing type valves.
1. Remove the front service panel.
Water Inlet
Connection,
located at the
FRONT of the
machine. Do
NOT connect
to tubing at
the back.
Drains
There are two types of ice machine models, one
that drains by gravity and one that has an internal
drain pump.
Drain Pump Model drain installation
Screw
Securing
Front Service
Panel
1. Locate the coil of 3/8” ID plastic drain tubing
secured to the back of the unit.
2. Route the plastic drain tube from the back of the
unit to the drain connection point.
2. Route the tubing through the right hole in the
back to the inlet water solenoid valve inlet.
3. Install a compression fitting on the tubing and
connect to the inlet of the solenoid.
IMPORTANT NOTE: Often an air gap is required by
local codes between the ice maker drain tube and
the drain receptacle.
Water Inlet
Tube (field
supplied)
Drain Tube,
Route to
building drain
Back View, Drain Pump Model
September 2011
Page 10
SCCG50 & SCCP50
Service Manual
Gravity Drain
Caution: Restrictions in the drain system to the
machine will cause water to back up into the ice
storage bin and melt the ice. Gravity drain tubing
must be vented, have no kinks and slope to the
building drain. Air gaps are typically required by
local code.
1. Place the ice machine in front of the installation
opening. Adjust leveling legs to the approximate
height.
2. Remove the front service access panel and the
upper back panel.
Note: If you are connecting a gravity drain model
and the drain opening has been located in the floor
under the base pan according to the pre install
specifications, follow steps 3 through 5 to drain the
unit through the base. If not, proceed to step 6b.
3. Remove the clamp and barbed elbow and take
off the plastic cover in the base pan below the drain
hose.
4. Connect a straight 5/8” barbed connector to the
drain hose, securing with the clamp removed in
step 4.
5. Cut an 8” piece of 5/8” ID X 7/8” OD tygon (clear
plastic) tubing. Slide one end of the tube onto the
outlet of the barbed connector and secure with a
clamp. Leave the other end of the tube lying on the
floor of the base pan until the unit is positioned
over the floor drain.
6. Route the drain tube. Either a) Insert the drain
tube through the base pan into the floor drain or b)
Route the drain tube through the left hole in the
lower back panel and connect to barbed elbow and
secure with a clamp.
7. Reinstall the upper back panel.
8. Reinstall the service access panel. Level the
unit.
Barbed Elbow
Drain Hose
Water Inlet
Tube (field
supplied)
Drain Hose,
Route to
building drain
Back View, Gravity Drain Model
June 2008
Page 11
SCCG50 & SCCP50
Service Manual
Electrical
The ice machine is supplied with a power cord. Do
not remove the grounding pin from the cord’s plug.
Do not use extension cords. Follow all codes.
Connect the machine to its own 115 volt, 15 amp
circuit.
1. If the electrical outlet for the ice maker is
behind the unit, plug in the unit.
1. Has the unit been connected to the proper
water supply?
2. Has the water supply be checked for leaks?
3. Has the unit been connected to a drain?
4. Has the drain been tested for flow and leaks?
2. Position the unit in the installation opening.
3. Turn on the water supply. Make sure that the
ice maker is plugged in and the power is on.
4. Slide unit into installation opening, paying
careful attention to water supply and drain
connections. Do not kink!
Installation check list:
5. Has the unit been connected to the proper
electrical supply?
6. Has the unit been leveled?
7. Have all packing materials been removed from
the machine?
5. Pour a couple of quarts of water into the ice
8. Has the door covering been installed?
storage bin; on drain pump equipped machines
the drain pump should start and water should
Initial Start Up
pump out. Check for leaks.
1. Turn on the water supply.
6. Replace the service access panel.
2. Switch on the electrical power.
7. Level the unit as needed.
3. Push and release the On/Off switch to start the
machine. The Ice Making light next to the
On/Off switch will glow Green.
4. Water will begin to flow into the unit. When the
reservoir is full, water will start to drain from the
machine. After a few minutes the compressor,
water pump and fan motor will begin to operate
and the first ice making cycle will have begun.
No adjustments are needed.
After about a half hour, ice will fall into the ice
storage bin. The machine makes 24 cubes per
batch. It is normal for the first batches of ice to
melt, that continues until the bin has cooled. It will
take 8 to 10 hours of continuous run time to fill the
ice bin. When the bin is full of ice, the ice machine
will shut off. It will automatically restart when the
ice level falls, either from use or normal meltage.
June 2008
Page 12
SCCG50 & SCCP50
Service Manual
Cube Size Adjustment
The cube size can be adjusted by changing the
amount of freeze cycle time. This is done by a
button press sequence.
Side Views of Cubes
Note: There is only one correct cube size. See the
illustrations.
To adjust cube size:
1. Shut the machine off: If it's off on bin full press
and release the On/Off button once, switching the
Ice Making light off. If the machine is making ice
hold the On/Off button in until the Ice Making light
is off.
Too Small, Adjust Cycle Longer
2. Press and hold the Clean button for 5 seconds
(light on), then release (light out)
3. View the lights. Compare to the table below.
Cube Size Change Table
On/Off
Water
Clean
Default
off
off
off
Add 1 minute
on
off
off
Add 2 minutes
off
on
off
Add 3 minutes
off
off
on
Add 4 minutes
on
on
on
- 1 minute
flash
off
off
- 2 minutes
off
flash
off
- 3 minutes
off
off
flash
- 4 minutes
flash
flash
flash
Just Right
Too Large, Adjust Cycle Shorter
4. Select the amount of change.
5. Push and release the On/Off button until the
correct light pattern is displayed.
6. Push and release the Clean button to select that
setting.
7. Push and release On/Off to return to ice making.
June 2008
Page 13
SCCG50 & SCCP50
Service Manual
Harvest Time Adjustment
The harvest time can be adjusted so that all the ice
harvests during the cycle, plus a few seconds
extra. This is done by a button press sequence.
Note: Do not set harvest time shorter than the
actual time it takes to release all the cubes.
To adjust Harvest Time:
1. Shut the machine off by holding the On/Off
button in until it shuts off (Ice Making light off).
2. Press and hold the On button again for 5
seconds, then release (Ice Making light will switch
off).
3. View the lights. Compare to the table below.
Harvest Time Table
On/Off
Water
Clean
Default
off
off
off
Add 10 seconds
on
off
off
Add 20 seconds
off
on
off
Add 30 seconds
off
off
on
Add 40 seconds
on
on
on
- 10 seconds
flash
off
off
- 20 seconds
off
flash
off
- 30 seconds
off
off
flash
- 40 seconds
flash
flash
flash
4. Select the amount of change.
5. Push and release the Clean button until the
correct light pattern is displayed.
6. Push and release the On button to select that
setting.
7. Push and release On/Off to return to ice making.
June 2008
Page 14
SCCG50 & SCCP50
Service Manual
Control Settings
Automatic water purge enable / disable
The control is set at the factory to automatically
select the proper amount of water purge. If desired,
that can be disabled, and a typical purge amount
used.
To disable Automatic purge selection:
1. Press and hold the On/Off button until the unit
shuts off. No lights should be on.
2. Press and hold the ON button for 5 seconds,
then release.
3. Wait between 5 and 20 seconds, then repeat
step 1. All lights will flash once.
To return to Automatic purge selection:
1. Press and hold the ON button for 5 seconds,
then release.
2. Wait between 5 and 20 seconds, then repeat
step 1. All lights will flash twice.
Manual Harvest - from the OFF or Standby Mode
(powered but no lights are on)
1. Press and hold the Clean-Reset button for 5
seconds and release.
2. Wait between 5 and 20 seconds, then repeat
step 1. All lights will flash once. The On/Off light will
be on until harvest has timed out.
Reset time to clean indicator light
Press and hold the Clean-Reset button for 3
seconds.
June 2008
Page 15
SCCG50 & SCCP50
Service Manual
Use
No special instructions are needed for use. Just
take as much ice as you need, the machine will
replace it. A scoop is provided, and it can be stored
in the machine using the loop of tubing on the right
side as a holder.
The machine can be shut off anytime by just
pushing and releasing the On/Off button. The
machine will shut off at the end of the next cycle.
To shut off immediately, push and hold the On/Off
button in until the machine stops.
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 can 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 will dictate even more frequent cleaning
of the ice making section, and some carpets or
pets will dictate more frequent cleaning of the
condenser.
Normal cubes are tapered cylinders. If the cubes
are ragged and mis-shaped, mineral scale must be
removed from the ice making system
Maintenance
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.
Note: The Time to Clean light will switch ON after 6
months of use. It will remain ON until the ice
How to clean the cabinet.
making system is cleaned using the process on
page 13.
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
Noise:
soap and warm water to remove.
The ice machine is designed for quiet operation,
How to clean the ice storage bin.
but will make some noise during the ice making
cycle. During a freezing cycle, it is normal to hear
The ice storage bin should be sanitized
the fan moving air and the water pump circulating
occasionally. It is usually convenient to sanitize the
water. Ice hitting the bin or ice in the bin can be
bin after the ice making system has been cleaned,
heard during harvest.
and the storage bin is empty.
If ice making noise is objectionable, an appliance
grade timer can be added to the power supply. Set A sanitizing solution can be made of 1 ounceo of
household bleach and two gallons of hot (95 F. –
the timer to turn the machine off at the time(s) of
115oF.) water. Use a clean cloth and wipe the
day when the noise is most objectionable.
interior of the ice storage bin with the sanitizing
solution, pour some of the solution down the drain.
Allow to air dry.
June 2008
Page 16
SCCG50 & SCCP50
Service Manual
How to clean the condenser and winterize.
Condenser cleaning
Winterizing
The condenser is like the radiator on a car, it has
fins and tubes that can become clogged with dirt
and lint. To clean:
1. Clean the ice making system.
2. Open the door and push and release the On/Off
switch to turn the machine off.
1. Remove the kickplate and front service panel.
3. Turn off the water supply.
2. Locate the condenser surface.
4. Drain the water reservoir by removing the rubber
cap under the reservoir - it's near the back wall of
the ice storage bin.
Rubber Cap
5. Disconnect the incoming water line at the inlet
water valve.
3. Vacuum the surface, removing all dust and lint.
Caution: Do not dent the fins.
4. Return the kickplate and front service panel to
their original positions. Fasten them to the cabinet
using the original screws.
6. Open the door, push and release the on/off
switch to turn the machine on.
7. Blow air through the inlet water valve; a tire
pump could do the job.
8. Drain pump models should have about 1/2
gallon of RV antifreeze (propylene glycol) poured
into the ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
9. Switch off and unplug the machine.
June 2008
Page 17
SCCG50 & SCCP50
Service Manual
How to remove scale from the ice making system.
1. Scoop out all of the ice, either discard it or save
it in an ice chest or cooler.
9. Pour a gallon of hot (95oF. – 115oF.) water into
the bin to flush out the drain.
2. Press and HOLD the On/off button in for 3
seconds until the Green light goes out.
10. Clean the bin liner of mineral scale by mixing
some ice machine scale remover and hot water,
and using that solution to scrub the scale off of the
liner.
11. Rinse the liner with hot water.
12. Sanitize the bin interior.
3. Press and HOLD the both the Clean-Reset and
On/Off buttons for 5 seconds. The Time to Clean
light will blink on and off.
4. Pour 8 ounces of Scotsman Ice Machine Scale
Remover (available from a local Scotsman
Distributor or Dealer) into the ice machine
reservoir.
13. Replace the ice removed in step 1.
14. Push and release the On/Off button to restart
ice making.
The ice scoop should be washed regularly, wash it
just like any other food container.
Pour Scale
Remover Here
5. Operate the machine for about ½ hour.
6. Push and release the On/Off switch. The
machine will begin to flush out the cleaning
solution.
7. Operate the machine for another ½ hour.
8. Push and release the On/Off switch. The
machine will stop the cleaning process.
June 2008
Page 18
SCCG50 & SCCP50
Service Manual
System Information
Overall:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Refrigerant: 8 oz R-134a
Compressor: Hermetic, 1300 BTUH, X HP
Condenser: Forced draft
Fan blade: 5 blade, 7 inch
Evaporator: Inverted, 24 cube cells. Copper
cups attached to continuous serpentine
Metering device: Cap tube
Defrost method: Hot gas bypass with water
assist
Spray method: 6 water jets
Water charge: 40 ounces
Water valve: 115 volt solenoid, .19 GPM
Water fill time: Varies with harvest time &
purge setting
Spray pump: Pedestal type.
Drain pump: Magnetic drive, controlled by
pressure switch
Purge method: Overflow standpipe
Control method: Electronic
Cycle control: Thermistor + timers
Freeze cycle timer: 10 minutes, + - 4
Harvest cycle timer: 20 seconds, + - 40
Cube size adjustment: Freeze timer change.
Harvest cycle adjustment: Harvest timer
change
Bin control: Thermostat. Opens on
temperature fall, Cut Out: 35 degrees F. Cut
In 45 degrees F. Range is adjustable.
Electrical Components:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Electrical Sequence:
Compressor
Fan motor
Spray pump motor
Drain pump motor
Drain pump switch
Bin light - LED type
Bin light switch - magnetic reed
Inlet water solenoid valve
Hot gas valve
Transformer
Controller
Water sensor
Thermistor
Bin thermostat
A closed bin thermostat signals to the controller a
need for ice. The controller checks for water, if
water is needed , the controller opens the inlet
water solenoid valve to fill the reservoir. The hot
gas valve is open to equalize the system. When the
reservoir is full, the compressor, fan motor, water
pump are switched on. After 5 seconds the hot gas
valve shuts and ice making begins.
Water is sprayed up into the inverted cup mold. As
the water is cooled and ice begins to form in the
cups, the temperature of the evaporator will fall.
The freeze cycle continues until the temperature of
the thermistor attached to the evaporator outlet
tube falls to about zero degrees F. At that point the
controller starts a freeze cycle timer, whose default
time is 10 minutes. At the end of the freeze cycle's
timed portion the controller switches to the harvest
cycle.
The harvest cycle begins with the controller
stopping the water pump and fan motor. At the
same time it opens the hot gas valve and the inlet
water solenoid valve. The ice is released by the
combination of discharge refrigerant gas entering
the evaporator serpentine and warming up the
copper, plus the inlet water that flows to the
evaporator, floods across the plastic platen to
warm it up and be pre-chilled for the next cycle. Ice
cubes drop individually and harvest continues until
the thermistor attached to the suction line warms
up to about 50 degrees F. At that point a harvest
timer starts, whose default time is 20 seconds. At
the end of that time the harvest cycle ends and the
freeze cycle restarts.
Bin control.
The machine's on and off modes are regulated by a
bin thermostat. The cap tube for the bin thermostat
is in the tube that holds the scoop. The machine
will only begin ice making when the thermostat's
contacts close. If the contacts re-open before the
temperature of the evaporator drops below a preset
point, the machine will stop. If the temperature is
below that point when the contact s open, the
machine will continue through a complete cycle
and stop at the end of the harvest cycle.
September 2008
Page 19
SCCG50 & SCCP50
Service Manual
Water System
The controller uses a Water Sensor to check for
the presence of water in the reservoir and to
measure the conductivity of the water.
Evaporator
The water sensor consists of two stainless steel
probes located in a holder next to the water pump.
The probes sense the conductivity of the water.
The higher the mineral content of the water, the
better it can conduct electricity. The control system
is capable of sensing water as clean as 10
microSiemens/cm.
Pump
If the controller cannot sense water and the bin
thermostat is closed the controller will power the
inlet water solenoid valve to fill the reservoir. The
water fill is timed. There is a maximum amount of
time allowed from the time the controller turned on
the inlet water valve until the water sensor signals
to the controller. That time is 2 1/2 minutes. If
water is not sensed within 2 1/2 minutes, the
controller will not proceed with an ice making
cycle. Instead it will blink the Water light and try
filling the reservoir in 20 minutes.
Reservoir
Drain
Freeze Cycle Water Schematic
Reservoir water dilution
The process of making ice from circulating water
causes the pure water to freeze first, because it
freezes at the warmest temperature. The remaining
water will develop an increasing concentration of
minerals. If that mineral concentration were
allowed to continue, eventually the ice machine
would become coated with mineral scale.
To combat the mineral build up, the reservoir water
is diluted with fresh water every cycle. The
controller adds enough water to fill the reservoir
and extra water to overfill it. The extra water drains
out through the standpipe in the reservoir.
The controller keeps the inlet water solenoid valve
open until the evaporator temperature set point is
reached, plus some extra time. The extra time is
either pre-set or automatically determined by the
controller.
November 2008
Page 20
Standpipe
Inlet Water Solenoid Valve
Harvest Cycle Water Schematic
SCCG50 & SCCP50
Service Manual
Components
Model and
Serial Tag
Location
Scoop and Thermostat Bracket
Control Panel, Bin Light and Curtain
Evaporator Platen
Evaporator and Controller
Inlet Water Solenoid Valve
Condenser and Bin Thermostat
June 2008
Page 21
SCCG50 & SCCP50
Service Manual
Controller
High
Voltage
Connector
Evaporator
Thermistor
Bin
Thermostat
Comp
Water Sensor
Water
Bin Light
Hot Gas
Fan
Power
Power Supply
Connector
Control Panel
Ribbon
The controller is located at the front of the unit,
under the top panel.
Control Safeties:
It is powered by a 12 volt transformer. It has 5
indicator lights:
• Compressor - Light is ON if compressor is
•
•
•
•
powered
Water - Light is ON if inlet water solenoid
valve is powered
Hot Gas - Light is ON when Hot Gas Valve is
powered
Fan - Light is ON when Fan motor is
powered
Power - Light is ON when power is
connected to controller
No Water. If the Water Sensor cannot detect
water, and the inlet water solenoid valve has been
on for the maximum fill time, the controller will stop
all action and wait 20 minutes to re-try water fill.
During this time the Check Water light on the
control panel will be blinking,
Maximum Freeze Time. If the freeze cycle should
extend to 60 minutes, the controller will
automatically put the machine into a Harvest cycle.
Maximum Harvest Time. 6 minutes
Time between restarts. After the machine has
operated and then turned off, the controller will not
restart the machine for four minutes.
June 2008
Page 22
SCCG50 & SCCP50
Service Manual
Performance Information
Freeze Cycle, Minutes
Water
Temperature
100
90
80
70
60
50
100
37-38
36-37
34-35
32-33
31-32
29-30
90
36-37
35-36
33-34
31-32
30-31
28-29
80
36-35
32-33
30-31
28-29
27-28
26-27
70
32-33
28-29
27-28
25-26
23-24
22-23
60
27-28
25-26
24-25
22-23
20-21
19-20
50
20-21
19-20
18-19
17-18
16-17
15-16
40
18-19
17-18
16-17
15-16
15-16
15-16
Harvest Cycle, Seconds
Water
Temperature
Air Temperature
100
90
80
70
60
50
80 -100
55-60
60-70
70-80
80-90
90-100
110-115
70 - 80
65-75
70-80
75-85
85-95
95-105
115-120
50 - 70
70-80
75-85
85-95
125-135
140-150
160-170
40 - 50
100-120
115-125
130-140
150-170
180-200
210-230
Total Cycle, Minutes
Water
Temperature
Air Temperature
Air Temperature
100
90
80
70
60
50
100
38-39
37-38
36-37
34-35
33-34
31-32
90
38-39
36-37
35-36
33-34
32-33
30-31
80
37-38
33-34
31-32
30-31
29-30
27-28
70
33-34
29-31
28-29
26-27
25-26
24-25
60
29-30
27-28
25-26
24-25
22-23
21-22
50
21-22
20-21
19-20
19-20
19
18-19
40
20-21
19-20
19
18-19
19
19-21
Ice per cycle: 1 lb
Water drained / cycle: Varies by harvest cycle
length and purge setting. Typical amounts are @
70/50 = 52 oz. @ 90/70 = 13 oz
Compressor amps: 2.6 - 3.2
June 2008
Page 23
SCCG50 & SCCP50
Service Manual
Refrigeration System
Suction Pressure
70
60
50
PSIG
40
30
20
10
0
-10
Time
Discharge Pressure
150
140
130
120
PSIG
110
100
90
80
70
60
50
Time
June 2008
Page 24
SCCG50 & SCCP50
Service Manual
Thermistor Values
Deg. F · Ohms
0·
1·
2·
3·
4·
5·
6·
7·
8·
9·
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
85325
82661
80090
77607
75210
72896
70660
68501
66415
64400
62453
60571
58752
56995
55296
53653
52065
50529
49043
47607
46217
44872
43571
42313
41094
39915
38774
37669
36600
35564
34561
33590
32649
31738
30855
30000
29171
28368
27589
26835
26104
25395
24707
24041
23394
22767
22159
21569
20997
20442
19903
19381
Deg. F · Ohms
52 ·
S3 ·
54 ·
55 ·
56 ·
57 ·
58 ·
59 ·
60 ·
61 ·
62 ·
63 ·
64 ·
65 ·
66 ·
67 ·
68 ·
69 ·
70 ·
71 ·
72 ·
73 ·
74 ·
75 ·
76 ·
77 ·
78 ·
79 ·
80 ·
81 ·
82 ·
83 ·
84 ·
85 ·
86 ·
87 ·
88 ·
89 ·
90 ·
91 ·
92 ·
93 ·
94 ·
95 ·
96 ·
97 ·
98 ·
99 ·
100
101
102
103
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
18873
18381
17903
17439
16988
16551
16126
15714
15313
14924
14546
14179
13823
13476
13139
12812
12494
12185
11884
11592
11308
11031
10763
10502
10247
10000
9760
9526
9299
9077
8862
8652
8448
8250
8056
7868
7685
7507
7333
7164
6999
6839
6683
6530
6382
6238
6097
5960
5826
5696
5569
5446
Deg. F. · Ohms
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
5325
5208
5093
4981
4872
4766
4663
4562
4463
4367
4273
4182
4093
4006
3921
3838
3757
3678
3601
3526
3452
3381
3311
3243
3176
3111
3047
2985
2924
2865
2807
2751
2696
2642
2589
2537
2487
2438
2390
2343
2297
2252
2208
2165
2123
2082
2042
2003
1965
1927
1890
1855
June 2008
Page 25
Deg. F.
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
Ohms
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
1819
1785
1752
1719
1687
1655
1624
1594
1565
1536
1508
1480
1453.
1427
1401
1375
1350
1326
1302
1279
1256
1234
1212
1190
1169
1149
1129
1109
1090
1071
1052
1034
1016
998
981
965
948
932
916
901
885
871
856
842
828
814
800
787
774
761
749
737
Deg. F. · Ohms
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
246
249
250
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
724
713
701
690
679
668
657
646
636
626
616
606
597
587
578
569
560
551
543
534
526
518
510
502
495
487
480
472
465
458
451
444
438
431
425
419
412
406
400
394
389
383
377
SCCG50 & SCCP50
Service Manual
Service Diagnosis
No Ice
Problem
Likely Cause
Probable Solution
No power to unit
Power disconnected
Check breaker or fuse. Reset or
replace, restart and check
No power to controller
Transformer open
Replace transformer
Control panel open
Switch failure
Test ribbon cable, see page 32
Shut down on maximum
water fill time - water light
flashing
Water shut off
Restore water supply
Water leak
Check curtain, sump
Dirty condenser
Clean condenser
Restricted location, intake air too
hot or blocked
Eliminate restriction, have machine
moved
Evaporator thermistor not sensing
properly
Check thermistor
Spray jets dirty
Remove spray platform and clean
spray jets
Inlet water valve leaks through
during freeze
Check inlet water valve
Low on refrigerant
Check cube formation,
Connected to hot water
Check for bleed thru from missing /
broken check valve in building
water supply
Spray pump not pumping
Check pump motor
Fan motor not turning
Check fan motor, check fan blade,
check controller for voltage output
Pump hose disconnected
Check hose
Very low on refrigerant
Add access valve, add refrigerant
as a test. If unit makes ice, find and
correct leak.
Very long freeze cycle
Cannot make ice
Compressor not operating
Check compressor start
components, check PTCR
resistance and temperature
Check compressor voltage
Check compressor windings
Hot gas valve leaks through during
freeze
Check hot gas valve for hot outlet
during freeze
Compressor inefficient
Check compressor amp draw, if low
and all else is correct, change
compressor
January 2012
Page 26
SCCG50 & SCCP50
Service Manual
Service Diagnosis
Makes excessive noise
Problem
Likely Cause
Probable Solution
Blade is bent
Replace fan blade
Fan motor mount is broken
Replace motor mount
Compressor vibrates
Mounting loose
Check mounting
Water pump vibrates
Pump bearings worn
Replace pump
Panels vibrate
Mounting screws loose
Tighten screws
Problem
Likely Cause
Probable Solution
Ice wrong size
Environment changed
Adjust cube size
Hot gas valve does not open
Check voltage to coil when unit is
in harvest, check controller
indicator light.
Water temperature very low
Adjust harvest time
Fan motor does not stop
Check voltage, replace controller
Problem
Likely Cause
Probable Solution
Spray pattern poor
Spray jets dirty
Clean jets
Runs out of water
Water leaking from reservoir
Correct leak
High TDS water supply
Groundwater supply
Treat water
Problem
Likely Cause
Probable Solution
Restricted drain
Gravity drain hose has air block
Check for kinks or traps
Pooled water in bin
Pump model switch not starting
pump
Check / replace switch
Fan blade vibrates
Makes ice, does not harvest
Little heat to evaporator
Makes poor quality ice
Makes ice, but melts rapidly
No Response from Control Panel Switches
• Test membrane switch panel, see page 32.
January 2012
Page 27
SCCG50 & SCCP50
Service Manual
Removal and Repair
Bin Thermostat
9. Reverse to reassemble.
1. Disconnect electrical power.
Curtain
1. Shut unit off.
2. Loosen both thumbscrews holding curtain
bracket to freezing chamber.
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
3. Pull out and remove curtain with bracket from ice
machine.
2. Remove service panel.
4. Reverse to reassemble.
3. Remove back panel.
Spray Platform
Note: If unit is built in it must be pulled out to
change the bin thermostat.
1. Remove curtain.
2. Lift spray platform up until it disconnects from its
fitting.
4. Pull cap tube out from the back of the ice
storage bin and cap tube holder.
3. Pull forward and remove from the ice machine.
5. Remove two screws and the bin thermostat
contact section from its mounting bracket.
4. Reverse to reassemble.
6. Disconnect two wires from the bin thermostat
contact section and remove the thermostat from
the ice machine.
Water Pump
1. Remove spray platform
2. Remove back panel.
7. Reverse to reinstall.
Note: If unit is built in it must be pulled out to
change the water pump.
Inlet Water Solenoid Valve
1. Disconnect electrical power.
2. Remove service panel.
3. Disconnect power and ground wires from pump
motor.
3. Shut water supply OFF.
4. Rotate pump body CW and lift up to remove it.
4. Disconnect inlet water supply tube from inlet
water solenoid valve.
5. Reverse to reassemble.
5. Unplug wire harness from valve coil.
6. Remove two screws holding valve to chassis.
7. Squeeze hose clamp larger and push away from
solenoid valve outlet.
8. Pull hose from outlet of valve.
June 2008
Page 28
SCCG50 & SCCP50
Service Manual
Removal and Repair
5. Remove screws holding transformer to controller
box and pull transformer up and out of the ice
machine.
Evaporator Thermistor
Note: If unit is built in it must be pulled out to
change the evaporator thermistor.
6. Reverse to reassemble.
Controller
Note: If unit is built in it must be pulled out to
change the controller.
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
1. Disconnect electrical power.
2. Remove top panel
1. Shut machine off. If unit was making ice,
manually harvest the ice.
3. Remove controller box cover.
2. Disconnect electrical power.
4. Unplug all connections.
3. Remove top panel.
5. Remove screws holding controller to housing,
and lift controller from unit.
4. Remove cover from controller box.
5. Disconnect thermistor wire from controller.
6. Locate thermistor sensor, it is attached to the
suction line, just above the accumulator and is
covered with insulation tape. Remove the
insulation.
Note: To avoid damaging the controller, touch the
metal chassis of the unit prior to touching the
replacement controller.
6. Reverse to reassemble.
Control Panel
7. Disconnect sensor bulb from suction line (it's
held on with a metal clip).
1. Disconnect electrical power.
8. Remove thermistor from ice machine.
2. Remove top panel
9. Reverse to reassemble. It is very important that
the bulb be re-insulated.
3. Remove controller box cover.
Transformer
Note: If unit is built in it must be pulled out to
change the transformer.
1. Disconnect electrical power.
2. Remove top panel.
4. Unplug ribbon cable connection.
5. Push control panel away from the front of the
machine. Begin at the ribbon cable attachment
point.
Note: Control panel is held on by adhesive and the
adhesive is thinnest at the cable point.
3. Remove controller cover.
6. Separate control panel from controller box and
remove from the ice machine.
4. Unplug leads from transformer.
7. Reverse to reassemble.
June 2008
Page 29
SCCG50 & SCCP50
Service Manual
Removal and Repair - Cabinet Removal
12. Remove curtain & hanger.
Certain components require the removal of the
cabinet for repair access.
1. If the machine is in a freeze mode, perform a
manual harvest.
2. Remove all ice.
3. Drain reservoir.
4. Remove service panel and kick plate.
5. Remove back panel.
13. Locate elbows where water flows onto the
evaporator platen.
6. Disconnect electrical power.
Clip
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
Inlet
Elbow
7. Disconnect water and drain tubing.
8. Remove door.
14. Pull clip up. Push inner elbow back and rotate it
until it points straight up, then push it back through
the hole in the back of the freezing compartment.
9. Remove top panel.
10. Remove controller box cover.
11. Disconnect thermistor from controller, pull wire
back to suction line.
Thermistor
Connector
Inlet
Elbow
Inner
Elbow
15. Pull water inlet elbow out of inner elbow.
June 2008
Page 30
SCCG50 & SCCP50
Service Manual
18. Remove two screws holding freezing
compartment brace to cabinet, lift brace up.
23. Lift bin assembly off the base.
Note: Prop evaporator assembly up. A 3' length of
3/4" PVC tubing with one end inserted into the cup
mold and the other against the base will hold it up.
Brace
The hot gas valve, fan motor, condenser and
compressor are now exposed for service.
19. Lift evaporator platen up and tilt back enough
for bin assembly to clear the base.
Air Baffle
20. Remove air baffle.
21. Unplug 7 wire harness connector (at back of
bin).
22. Remove 1 screw at each corner of the base.
June 2008
Page 31
Chassis Shown in Front of Bin Assembly
SCCG50 & SCCP50
Service Manual
Refrigeration Service
This ice machine use R-134a type refrigerant.
There are specific rules for handling that
refrigerant.
Membrane Switch
Unplug and check connector pins (left side from
To check for system pressures, add a field supplied front is pin 1), read about 10 ohms when activating
clamp-on type service valve as a temporary means the button, and OL when not pressing the button:
Pin 2-3 On/Off Switch; 4-3 Clean Reset Switch
of system access. After diagnosis and before final
repair, replace the clamp-on type valve with valves
that are brazed onto the process tubes of the
system.
Use a low flow of dry nitrogen when brazing on the
system.
Install a new filter drier when replacing a
refrigeration component or after a refrigerant leak
repair.
Evacuate the system to at least 300 microns and
use a micron gauge to measure the evacuation
level.
Weigh in the nameplate charge. The machine is
critically charged and a partial ounce mis-charge
will affect performance.
Bin Thermostat Altitude Adjustment Table
Altitude
Degrees Rotation to Turn
Adjustment Screw
1000
11 CW
2000
31 CW
3000
52 CW
4000
72 CW
5000
92 CW
6000
111 CW
7000
128 CW
January 2012
Page 32
SCCG30 & SCCP30
Service Manual
Introduction:
This ice machine is the result of Scotsman’s
decades of experience as an industry leader in the
design and manufacture of both commercial and
residential ice machines.
This manual includes the information needed to
install, start up and maintain the ice machine. Note
any Caution or Warning indicators, as they provide
notice of potential hazards. Keep this manual for
future reference.
Table of Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Cabinet Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Door Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Door Panel Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Custom Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Door swing change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Installation: Water & Drain
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Gravity Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Electrical
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Cube Size Adjustment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
Harvest Time Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14
Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16
How to clean the condenser and winterize. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17
How to remove scale from the ice making system. . . . . . . . . . . . . . . . . . . . . . . . Page 18
System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
Components
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22
Performance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 23
Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24
Thermistor Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 26
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27
Removal and Repair
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28
Removal and Repair
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 29
Removal and Repair - Cabinet Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 30
Refrigeration Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32
September 2009
Page 1
SCCG30 & SCCP30
Service Manual
Specifications
This ice machine is designed to be used indoors, in Options:
a controlled environment. It can be used in a wide
variety of environmental conditions, but there are
Door Panel kits:
limits. Use outside of the listed limitations is misuse
and will void the warranty.
Finished door panels are available from Scotsman
for attachment to the machine, or a custom panel
Air temperature limits:
can be made.
The ice machine will operate adequately within the
limits, but functions best in temperatures between
70 and 80 degrees F.
• Minimum – 50 degrees F. (10oC)
• Maximum – 100 degrees F. (38oC)
Kit Number Panel Finish
Handle Finish
KDFS
Stainless Steel
Stainless Steel
Drain Conversion:
A gravity drain model can be converted to a drain
pump model by installing a drain pump kit. The
drain pump kit consists of a drain pump, wiring
harness and associated tubing. The kit number is
A39462-021.
Water temperature limits:
• Minimum – 40 degrees F. (4.5oC)
• Maximum – 100 degrees F. (38oC)
Warranty Information
Water pressure limits:
Warranty information is supplied separately from
this manual. Refer to it for coverage. In general, the
warranty covers defects in materials or
workmanship and does not cover corrections of
Because the ice machine is making a food product, installation errors or maintenance.
the water supply to the ice machine must be
potable, or fit for human consumption.
• Minimum – 20 psi (1.4 bar)
• Maximum – 80 psi (5.5 bar)
Electrical
• 115 volt, 60 Hz. Plug into dedicated 15 amp
circuit.
• Power consumption: 400-180 Watts. Varies
during Freeze and Harvest cycles.
Voltage limits:
• Minimum - 104 volts
• Maximum – 126 volts
Models: There are six models, all air cooled:
• SCCPA30M-1SU – Pump model, stainless cabinet
• SCCGA30M-1SU – Gravity drain model, stainless cabinet
September 2009
Page 2
SCCG30 & SCCP30
Service Manual
Cabinet Layout
FLOOR DRAIN
ACCESS HOLE
3 7/8"
20 3/8"
22"
.75 SHEET METAL DOOR FRONT
.63 MIN. CABINET DOOR
14 7/8"
29 1/4"
33 3/8" MIN.
34 3/8" MAX.
DRAIN
FLEXIBLE TUBING
3/8 I.D. PUMP MODEL (INCLUDED)
5/8 I.D. GRAVITY MODEL (NOT INCLUDED)
POTABLE WATER INLET
1/4" COMPRESSION FITTING
4"
AIR OUT
AIR IN
2 1/2"
2 3/4"
1" LEG ADJUSTMENT
(4) PLACES
September 2009
Page 3
1 1/2"
115 V
POWER CORD
3 3/4"
7 3/8"
3 1/4"
SCCG30 & SCCP30
Service Manual
Air flow
The machine takes in room temperature air at the
lower right front and forces warm air out the lower
left front. Restricting the airflow will adversely affect
the ability of the ice machine to make ice.
On/Off Switch
Ice Making
Area
Warm Air Out
Air Intake
Scotsman Ice Systems are designed and
manufactured with the highest regard for safety
and performance. They meet or exceed the
standards of agencies like 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.
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and designs are subject to change
without notice.
September 2009
Page 4
SCCG30 & SCCP30
Service Manual
Water Quality
All water, including potable water supplied by
municipalities, contains some impurities or
minerals. 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.
Filters and Treatment
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.
RO Water
Ice made by this machine will have a lower mineral
content than the water it was made from. This is
due to the method of making ice. 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 machine dilutes the
concentration of minerals by over-filling the
reservoir during the harvest cycle (with the excess
water flowing down the drain). s. Between 2 and 4
pints of water flow into the unit each cycle.
Between 1 and 3.5 pints of that rinses the reservoir
and goes down the drain.
This machine can be supplied with Reverse
Osmosis water. A reverse osmosis system should
include post treatment to satisfy the R.O. water’s
potential aggressiveness. Deionized water is not
recommended.
Because water softeners exchange one mineral for
another, softened water may not improve water
conditions when used with ice machines. Where
water is very hard, softened water could result in
white, mushy cubes that stick together.
If in doubt about the water, contact a local point of
use water specialist for recommendations on water
treatment.
Some impurities will inevitably remain, and will stick
to the parts in the machine, and will cause
Installation Overview
malformed ice cubes. Eventually, built up mineral
The ice machine must:
scale can shorten machine life.
To keep the machine operating properly, these
impurities or minerals will have to be regularly
dissolved by an acid cleaning, using Scotsman Ice
Machine Scale Remover. Directions for this may be
found in the section under cleaning.
•
•
•
•
be connected to cold, potable water
be connected to a drain
be connected to the proper power supply
be able circulate air through the vents at the
front.
Note: Do not build in so that the door is recessed.
September 2009
Page 5
SCCG30 & SCCP30
Service Manual
Door Covering
Door Panel
Custom Panel
The ice machine is supplied without a conventional
door covering so it can be decorated to the user’s
preference. Scotsman offers several coverings
including white, black and stainless steel. In
addition, a custom built panel can be placed onto
the door.
A custom panel of wood or other material not
exceeding 15 lb can be attached to the door.
Attachment is from the ice side of the door. Holes
are provided in the door for this purpose.
See instructions in information packet to create and
attach a custom panel:
Door Panel Attachment
To attach a Scotsman supplied panel:
Note: If door swing is to be changed, it must be
done before panel is attached.
The panel will be held on by 6 sheet metal screws
and 2 machine screws.
1. Remove the gasket and retain for later use.
2. If the door panel is stainless steel, remove any
plastic covering the stainless steel panel.
3. Place the panel onto the outside of the door,
and secure it to the door using two machine
screws, located at the left center and right
center.
4. Fasten the panel to the door using the 6 sheet
metal screws. In the hinge area, use the
outermost screw holes.
5. Place the covers over the hinge areas, and
secure each cover to the door using a sheet
metal screw.
6. Insert hole plug over screw installed in step 5.
7. Return the gasket to its original position.
September 2009
Page 6
SCCG30 & SCCP30
Service Manual
Door Panel Attachment
Use Upper
Hole at the
Top
Scotsman
Door Panel
Gasket
Machine
Screw
Hole Plug
Use Lower
Hole at the
Bottom
Cover
September 2009
Page 7
SCCG30 & SCCP30
Service Manual
Custom Panel
A custom panel of wood or other material not
exceeding 15 lb can be attached to the door.
Attachment is from the ice side of the door. Holes
are provided in the door for this purpose.
To create and attach a custom panel:
10. Mount panel to door using wood screws or
supplied panel mounting screws.
Note: When installed Ice machine must be adjusted
for height to position top of door to desired
clearance.
• Panel width: 14 7/8”
• Panel height: Between 29 3/8” and 30 3/8”.
• Panel thickness: 5/8” to ¾”
1. Measure overall height of cabinet
opening where ice machine will be
(floor to bottom of countertop edge).
13 9/16"
6 25/32"
2. Determine desired kickplate
space (from bottom of door to floor).
This could be equal to the adjacent
cabinet’s kickplate space or another
space the user wants.
8 1/4"
13/16"
4 1/8"
13/32"
3. Subtract kickplate space from
cabinet opening.
4. Subtract 1/8 or more for clearance
space between top of door and
bottom of countertop edge from
cabinet opening. This is the
maximum door length.
14 11/16"
Ø 1/8"
TYP. (10)
5. Cut panel to width.
30 3/8"
29 3/8"
6. Cut panel to length (cabinet space
- kickplate space - top clearance =
length).
7. Determine top of panel.
8. Mark hole locations using drawing
on the back of these instructions.
Drawing assumes top of panel will
be flush with top of door. Measure
hole locations from the top of the
panel.
9. Drill pilot holes for wood screws.
Use drill stop to prevent drilling
through the panel.
13 31/64"
13/32"
{Centerline}
14 7/8"
September 2009
Page 8
SCCG30 & SCCP30
Service Manual
Door swing change
Note: Prior models had separate hinge brackets
and different directions to change swing.
4. Remove hole plugs or screws from unit's new
hinge locations, set aside.
Moving the hinges allows the door to open from
either the left or right side. Change swing before
attaching door panel.
5. Move screws loosened in step 1 to opposite
location.
6. Install screws or plugs removed in step 4 to the
unit's original hinge location to fill the holes.
To change:
1. Remove innermost screw holding each hinge
to cabinet, loosen the other.
7. Remove the upper hinge from the door and
move it to the door's opposite side, bottom
location. Secure using the original screws.
Note: If door panel is attached, it must be removed
to access hinge screws and to reverse handle
position.
Remove
8. Remove the original lower hinge and move it to
the door's opposite side, upper location.
Secure using the original screws.
Loosen
9. Install pocket covers and hole plugs onto door.
10. Attach the door to the cabinet using the original
screws.
Installation Notes
Built In Situations: If a finished floor is to be
2. Slide door to the side and remove from cabinet. installed in the area after the ice machine has been
built in, shims the expected thickness of the floor
should be installed under the unit to keep the
Pocket
Plug
machine level with the planned floor level.
Cover
Installations on a slab: Use a pump model and
pump the water to the point of drainage. Pump
models will pump 1 story (10 feet) 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.
3. Remove plug and hinge pocket covers from
door.
Note: When installed in a corner, the door swing
may be limited due to handle contact with the wall
or cabinet face.
Note: There are either plugs or screws in the holes
where the hinges will mount. They must be moved.
January 2012
Page 9
SCCG30 & SCCP30
Service Manual
Door swing change
The door can be attached to open with hinges on
Note: If door panel is installed it must be removed
the left or right using new brackets shipped loose in to access hinge screws and to reverse handle
the ice bin. Retain all screws for re-use.
position.
To change:
8. Remove the upper hinge and move it to the
door's opposite side, bottom location. Secure
using the original screws.
1. Remove innermost
screw holding each
hinge to cabinet, loosen
the other.
9. Remove the original lower hinge and move it to
the door's opposite side, upper location.
Secure using the original screws.
2. Slide hinges to the side
and remove door from
cabinet. Remove
screws loosened in step
1 from both hinge brackets.
10. Install a screw removed in step 2 in outermost
hole of upper and lower cross braces.
3. Remove two screws securing top panel to
back, pull top panel back and remove from
cabinet.
Door Hinge
4. Remove two screws at Bracket
the top and lift the door
hinge bracket out of the
cabinet. Replace with the
one supplied loose with
the machine. Fasten it to
the cabinet using the
original screws.
11. Attach the door to the cabinet using the original
screws.
12. Return kickplate and front service panel to their
original positions and attach to the cabinet
using the original screws.
Installation Notes
Built In Situations: If a finished floor is to be
installed in the area after the ice machine has been
built in, shims the expected thickness of the floor
should be installed under the unit to keep the
machine level with the planned floor level.
5. Return the top panel to the cabinet and fasten
it with the original screws.
6. Remove kickplate and front service panel.
7. Remove two front screws and two bottom
screws holding the bottom cross brace to the
cabinet. Replace the brace with the one
supplied loose with the machine. Secure it
using the original screws.
Installations on a slab: Use a pump model and
pump the water to the point of drainage. Pump
models will pump 1 story (10 feet) 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.
Note: When installed in a corner, the door swing
may be limited due to handle contact with the wall
or cabinet face.
Screw Below
September 2011
Page 9
SCCG30 & SCCP30
Service Manual
Installation: Water & Drain
Water Supply, all models: The recommended water
supply tubing is ¼ inch OD copper. Stainless steel
flex or reinforced PVC tube may also be used.
Install an easily accessible shut-off valve between
the supply and the unit. This shut-off valve should
not be installed behind the unit.
Note: Do NOT connect water to tubing at the back,
the water inlet connection is at the front.
Drains
Note: Do not use self-piercing type valves.
There are two types of ice machine models, one
that drains by gravity and one that has an internal
drain pump.
1. Remove the front service panel.
Drain Pump Model drain installation
Screw Securing Front
Service Panel
2. Route the tubing
through the right
hole in the back to
the inlet water
solenoid valve inlet
at the front.
1. Locate the coil of 3/8” ID plastic drain tubing
secured to the back of the unit.
2. Route the plastic drain tube from the back of the
unit to the drain connection point.
IMPORTANT NOTE: Often an air gap is required by
local codes between the ice maker drain tube and
the drain receptacle.
3. Install a
compression fitting
on the tubing and
connect to the inlet
of the solenoid.
Connect Water Here
Water Inlet
Tube (field
supplied)
Drain Tube,
Route to
building drain
Back View, Drain Pump Model
September 2011
Page 10
SCCG30 & SCCP30
Service Manual
Gravity Drain
Caution: Restrictions in the drain system to the
machine will cause water to back up into the ice
storage bin and melt the ice. Gravity drain tubing
must be vented, have no kinks and slope to the
building drain. Air gaps are typically required by
local code.
1. Place the ice machine in front of the installation
opening. Adjust leveling legs to the approximate
height.
2. Remove the front service access panel and the
upper back panel.
Note: If you are connecting a gravity drain model
and the drain opening has been located in the floor
under the base pan according to the pre install
specifications, follow steps 3 through 5 to drain the
unit through the base. If not, proceed to step 6b.
3. Remove the clamp and barbed elbow and take
off the plastic cover in the base pan below the drain
hose.
4. Connect a straight 5/8” barbed connector to the
drain hose, securing with the clamp removed in
step 4.
5. Cut an 8” piece of 5/8” ID X 7/8” OD tygon (clear
plastic) tubing. Slide one end of the tube onto the
outlet of the barbed connector and secure with a
clamp. Leave the other end of the tube lying on the
floor of the base pan until the unit is positioned
over the floor drain.
6. Route the drain tube. Either a) Insert the drain
tube through the base pan into the floor drain or b)
Route the drain tube through the left hole in the
lower back panel and connect to barbed elbow and
secure with a clamp.
7. Reinstall the upper back panel.
8. Reinstall the service access panel. Level the
unit.
Barbed Elbow
Drain Hose
Water Inlet
Tube (field
supplied)
Drain Hose,
Route to
building drain
Back View, Gravity Drain Model
September 2009
Page 11
SCCG30 & SCCP30
Service Manual
Electrical & Start Up
The ice machine is supplied with a power cord. Do
not remove the grounding pin from the cord’s plug.
Do not use extension cords. Follow all codes.
Connect the machine to its own 115 volt, 15 amp
circuit.
1. If the electrical outlet for the ice maker is
behind the unit, plug in the unit.
Initial Start Up
1. Turn on the water supply.
2. Switch on the electrical power.
3. Move the On/Off switch to the ON position.
2. Position the unit in the installation opening.
3. Turn on the water supply. Make sure that the
ice maker is plugged in and the power is on.
4. Slide unit into installation opening, paying
careful attention to water supply and drain
connections. Do not kink!
5. Pour a couple of quarts of water into the ice
storage bin; on drain pump equipped machines
the drain pump should start and water should
pump out. Check for leaks.
6. Replace the service access panel.
4. The compressor will start and water will begin
to flow into the unit. When the reservoir is full,
water will start to drain from the machine. After
a few minutes the water pump and fan motor
will begin to operate and the first ice making
cycle will have begun.
7. Level the unit as needed.
Installation check list:
1. Has the unit been connected to the proper
water supply?
2. Has the water supply be checked for leaks?
3. Has the unit been connected to a drain?
4. Has the drain been tested for flow and leaks?
5. Has the unit been connected to the proper
electrical supply?
No adjustments are needed.
After about a half hour, ice will fall into the ice
storage bin. The machine makes 12 cubes per
batch. It is normal for the first batches of ice to
melt, that continues until the bin has cooled. It will
take 16 to 24 hours of continuous run time to fill the
ice bin. When the bin is full of ice, the ice machine
will shut off. It will automatically restart when the
ice level falls, either from use or normal meltage.
6. Has the unit been leveled?
7. Have all packing materials been removed from
the machine?
Has the door covering been installed?
8.
September 2009
Page 12
SCCG30 & SCCP30
Service Manual
Cube Size Adjustment
The size of the ice cubes is determined by how
long the ice machine is in the freezing cycle. That
is controlled by the cube size thermostat.
Side Views of Cubes
The cube size thermostat's sensing portion is
attached to the suction tube, near the outlet of the
evaporator. As the machine makes ice, the
temperature of the suction tubing falls. When it
reaches a preset point, the thermostat's contacts
close and connect power to the electronic timer.
The electronic timer finishes the freeze cycle.
Too Small, Adjust Cycle Longer
Adjustment
There is only one proper ice cube size, see the
diagram to the right. If the cubes are not the correct
size, adjust the cube size thermostat.
Just Right
Rotate the cube size thermostat's adjustment
screw clockwise to increase the size of the cube.
Rotate the cube size thermostat's adjustment
screw counter clockwise to make the ice cube size
smaller.
September 2009
Page 13
Too Large, Adjust Cycle Shorter
SCCG30 & SCCP30
Service Manual
Harvest Time Adjustment
The harvest time can be adjusted so that all the ice
is released during the harvest period, with a few
seconds extra for a safety margin. The adjustment
range is between 2 to 5 minutes.
There is an adjustment screw on the surface of the
electronic timer. Rotate the screw CCW to reduce
harvest time, and CW to increase it. It should be
set to match the machine's performance. If the
machine takes 2 and a half minutes to release the
ice, the harvest time should be set to about 3
minutes.
September 2009
Page 14
SCCG30 & SCCP30
Service Manual
Use
No special instructions are needed for use. Just
take as much ice as you need, the machine will
replace it. A scoop is provided, and it can be stored
in the machine using the loop of tubing on the right
side as a holder.
The machine can be shut off anytime by moving
the On/Off switch to OFF.. The machine will shut
off immediately.
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 can 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 will dictate even more frequent cleaning
of the ice making section, and some carpets or
pets will dictate more frequent cleaning of the
condenser.
Normal cubes are tapered cylinders. If the cubes
are ragged and mis-shaped, mineral scale must be
removed from the ice making system
Maintenance
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.
Noise:
The ice machine is designed for quiet operation,
but will make some noise during the ice making
cycle. During a freezing cycle, it is normal to hear
the fan moving air and the water pump circulating
water. Ice hitting the bin or ice in the bin can be
heard during harvest.
If ice making noise is objectionable, an appliance
grade timer can be added to the power supply. Set
the timer to turn the machine off at the time(s) of
day when the noise is most objectionable.
5. The ice scoop.
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 oF. –
115oF.) 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.
September 2009
Page 15
SCCG30 & SCCP30
Service Manual
How to clean the condenser and winterize.
Condenser cleaning
Winterizing
The condenser is like the radiator on a car, it has
fins and tubes that can become clogged with dirt
and lint. To clean:
1. Clean the ice making system.
2. Open the door and push and release the On/Off
switch to turn the machine off.
1. Remove the kickplate and front service panel.
3. Turn off the water supply.
2. Locate the condenser surface.
4. Drain the water reservoir by removing the rubber
cap under the reservoir - it's near the back wall of
the ice storage bin.
Rubber Cap
3. Vacuum the surface, removing all dust and lint.
Caution: Do not dent the fins.
5. Disconnect the incoming water line at the inlet
water valve.
4. Return the kickplate and front service panel to
their original positions. Fasten them to the cabinet
using the original screws.
6. Open the door, push and release the on/off
switch to turn the machine on.
7. Blow air through the inlet water valve; a tire
pump could do the job.
8. Drain pump models should have about 1/2
gallon of RV antifreeze (propylene glycol) poured
into the ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
9. Switch off and unplug the machine.
September 2009
Page 16
SCCG30 & SCCP30
Service Manual
How to remove scale from the ice making system.
1. Scoop out all of the ice, either discard it or save
it in an ice chest or cooler.
2. Switch the machine Off.
3. Pour 8 ounces of Scotsman Ice
Machine Scale Remover
(available from a local Scotsman
Distributor or Dealer) into the ice
machine reservoir.
4. Switch the machine On.
Pour Scale
Remover Here
5. Operate the machine for about
2 hours.
6. Pour a gallon of hot (95oF. –
115oF.) water into the bin to melt
ice formed during the cleaning
process and to flush out the drain.
7. Clean the bin liner of mineral
scale by mixing some ice machine
scale remover 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 1.
The ice scoop should be washed regularly, wash it
just like any other food container.
September 2009
Page 17
SCCG30 & SCCP30
Service Manual
System Information
Overall:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Refrigerant: 8 oz R-134a
Compressor: Hermetic, 700 BTUH
Condenser: Forced draft
Fan blade: 3 blade, 6 inch
Evaporator: Inverted, 12 cube cells. copper,
continuous serpentine
Metering device: Cap tube
Defrost method: Hot gas bypass with water
assist
Spray method: 6 water jets
Water charge: 30 ounces
Water valve: 115 volt solenoid, .19 GPM
Water fill time: Varies with harvest time
Spray pump: Pedestal type.
Drain pump: Magnetic drive, controlled by
pressure switch
Purge method: Overflow standpipe
Control method: Electronic timer with electro
mechanical cube size thermostat
Cycle control: Reverse acting thermostat
Cube size adjustment: Thermostat cut in
change
Harvest cycle adjustment: Harvest timer
change, range between 2 and 5 minutes.
Bin control: Thermostat. Opens on
temperature fall, Cut Out: 35 degrees F. Cut
In 45 degrees F. Range is adjustable.
Electrical Components:
•
•
•
•
•
•
•
•
•
•
Electrical Sequence:
Compressor
Fan motor
Spray pump motor
Drain pump motor
Drain pump switch
Inlet water solenoid valve
Freeze & harvest timer
Cube size thermostat
Hot gas valve
Bin thermostat
The machine uses a temperature initiated, timed
cycle to make ice.
A closed bin thermostat connects power to the
compressor and electronic timer. The timer NO
contacts close, connecting power to the water and
hot gas solenoids.
The compressor starts, the inlet water solenoid
valve opens and fills the reservoir. The harvest
timer starts. At the end of the pre-set harvest time,
the timer will open the NO contacts, stopping the
inlet water valve and hot gas valve. At the same
time, it closes the NC contacts, powering the fan
and pump motors. This is the beginning of the
freeze cycle.
The freeze cycle continues until the cube size
contacts close, this starts a freeze timer. No other
changes occur until the freeze timer expires, when
the NC contacts open and the NO contact close,
starting the harvest cycle.
The harvest cycle is time controlled. At the end of
the harvest cycle the unit returns to a freeze cycle.
Bin control.
The machine's on and off modes are regulated by a
bin thermostat. The cap tube for the bin thermostat
is in the tube that holds the scoop. The machine
will only begin ice making when the thermostat's
contacts close. The machine will stop ice making
whenever the bin thermostat contacts open.
September 2009
Page 18
SCCG30 & SCCP30
Service Manual
Water System
The water system consists of a water pump, inlet
water solenoid valve, reservoir with overflow
standpipe and spray platform.
Harvest cycle: The inlet water solenoid valve is
open during the harvest cycle. Water flows through
it to the top of the machine and onto the evaporator
platen. The water flows across the platen, warming
it up to assist in releasing the ice. Water drains
from the platen through drain holes at the platen
corners. That water, now chilled by contact with the
evaporator platen, drains into the reservoir. When
the reservoir is full, excess water drains out the
standpipe. When harvest is complete, the inlet
water solenoid closes and water stops flowing into
the machine.
Standpipe
Inlet Water Solenoid Valve
Harvest Cycle Water Schematic
Freeze cycle: The water pump takes water from
the reservoir and forces it through the 6 spray jets,
causing the water to contact the inverted cups of
the evaporator. Unfrozen water falls back into the
reservoir. As ice forms in the cups, the water level
in the reservoir fails. This continues until the
harvest cycle starts.
Evaporator
Pump
Reservoir
Drain
Freeze Cycle Water Schematic
September 2009
Page 19
SCCG30 & SCCP30
Service Manual
Components
Model and
Serial Tag
Location
Bin Thermostat Bracket and Scoop
Model and Serial Plate Location
Evaporator Platen
Evaporator & Top of Unit
Inlet Water Solenoid Valve
Condenser and Bin Thermostat
September 2009
Page 20
SCCG30 & SCCP30
Service Manual
Performance Information
Listed cycle times are after the 3rd consecutive cycle, will vary a minute or so, and will be longer for built
in units.
Freeze Cycle, Minutes
Water
Temperature
Air Temperature
100
90
80
70
60
50
100
60
46
45
43
42
40
90
54
44
42
40
38
36
80
45
40
38
37
35
34
70
40
37
35
33
32
30
60
31
30
27
26
24
23
50
24
23
22
21
20
19
40
23
21
20
19
18
18
Harvest time is usually 2 minutes, longer in very
cold conditions.
Total Cycle, Minutes
Water
Temperature
Air Temperature
100
90
80
70
60
50
100
62
48
47
45
44
42
90
56
46
43
42
40
38
80
47
42
39
39
37
36
70
42
39
37
35
33
32
60
32
32
29
26
26
23
50
26
25
23
23
22
24
40
25
22
22
21
24
23
Ice per cycle: 1/2 lb
Water drained / cycle: Varies by harvest cycle
length and purge setting. Typically about 3 pints.
Compressor amps: 2.9 - 3.1
September 2009
Page 21
SCCG30 & SCCP30
Service Manual
Refrigeration System
Suction Pressure
70
60
50
PSIG
40
30
20
10
0
Time
Discharge Pressure
140
120
100
PSIG
80
60
40
20
0
Time
September 2009
Page 22
SCCG30 & SCCP30
Service Manual
Service Diagnosis
No Ice
Problem
Likely Cause
Probable Solution
No power to unit
Power disconnected
Check breaker or fuse. Reset or
replace, restart and check
Dirty condenser
Clean condenser
Restricted location, intake air too
hot or blocked
Eliminate restriction, have machine
moved
Evaporator thermostat not sensing
properly
Check thermostat
Spray jets dirty
Remove spray platform and clean
spray jets
Inlet water valve leaks through
during freeze
Check inlet water valve
Low on refrigerant
Check cube formation,
Connected to hot water
Check for bleed thru from / missing
check valve in building water
supply
Spray pump not pumping
Check pump motor
Fan motor not turning
Check fan motor, check fan blade
Pump hose disconnected
Check hose
Water leak
Check curtain, sump drain cap
Very low on refrigerant
Add access valve, add refrigerant
as a test. If unit makes ice, find and
correct leak.
Very long freeze cycle
Check compressor start
components
Cannot make ice
Compressor not operating
Check compressor voltage
Check compressor windings
Hot gas valve leaks through during
freeze
Check hot gas valve for hot outlet
during freeze
Compressor inefficient
Check compressor amp draw, if
low and all else is correct, change
compressor
September 2009
Page 23
SCCG30 & SCCP30
Service Manual
Service Diagnosis
Makes excessive noise
Problem
Likely Cause
Probable Solution
Blade is bent
Replace fan blade
Fan motor mount is broken
Replace motor mount
Compressor vibrates
Mounting loose
Check mounting
Water pump vibrates
Pump bearings worn
Replace pump
Panels vibrate
Mounting screws loose
Tighten screws
Problem
Likely Cause
Probable Solution
Ice wrong size
Environment changed
Adjust cube size
Hot gas valve does not open
Check voltage to coil when unit is
in harvest, check controller
indicator light.
Water temperature very low
Adjust harvest time
Problem
Likely Cause
Probable Solution
Spray pattern poor
Spray jets dirty
Clean jets
Runs out of water
Water leaking from reservoir
Correct leak
High TDS water supply
Groundwater supply
Treat water
Likely Cause
Probable Solution
Gravity drain hose has air block
Check for kinks or traps
Pump model switch not starting
pump
Check / replace switch
Fan blade vibrates
Makes ice, does not harvest
Little heat to evaporator
Makes poor quality ice
Makes ice, but melts rapidly
Problem
Restricted drain, water in
bin
September 2009
Page 24
SCCG30 & SCCP30
Service Manual
Removal and Repair
Bin Thermostat
9. Reverse to reassemble.
1. Disconnect electrical power.
Curtain
1. Shut unit off.
2. Loosen both thumbscrews holding curtain
bracket to freezing chamber.
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
3. Pull out and remove curtain with bracket from ice
machine.
2. Remove service panel.
4. Reverse to reassemble.
3. Remove back panel.
Spray Platform
Note: If unit is built in it must be pulled out to
change the bin thermostat.
1. Remove curtain.
4. Pull cap tube out from the back of the ice
storage bin and cap tube holder.
2. Lift spray platform up until it disconnects from its
fitting.
3. Pull forward and remove from the ice machine.
5. Remove two screws and the bin thermostat
contact section from its mounting bracket.
6. Disconnect two wires from the bin thermostat
contact section and remove the thermostat from
the ice machine.
4. Reverse to reassemble.
Water Pump
1. Disconnect electrical power.
2. Remove spray platform
7. Reverse to reinstall.
3. Remove back panel.
Inlet Water Solenoid Valve
Note: If unit is built in it must be pulled out to
change the water pump.
1. Disconnect electrical power.
2. Remove service panel.
4. Disconnect power and ground wires from pump
motor.
3. Shut water supply OFF.
4. Disconnect inlet water supply tube from inlet
water solenoid valve.
5. Rotate pump body CW and lift up to remove it.
6. Reverse to reassemble.
5. Unplug wire harness from valve coil.
6. Remove two screws holding valve to chassis.
7. Squeeze hose clamp larger and push away from
solenoid valve outlet.
8. Pull hose from outlet of valve.
September 2009
Page 25
SCCG30 & SCCP30
Service Manual
Removal and Repair
Cube Size Thermostat
9. Disconnect wires from cube size thermostat.
1. Disconnect unit from electrical power.
10. Remove two screws holding cube size
thermostat to bracket. Pull cube size thermostat
from the machine.
11. Route new cube size thermostat bulb and cap
tube from the front, through the hole in the air baffle
and into the back of the unit.
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
12. Attach cube size thermostat to thermostat
bracket, attach wires.
2. Remove door.
Note: Replacement thermostat wiring may be
different from the original. Check for instructions.
3. Remove top panel.
4. Remove service panel.
13. Attach bracket to cabinet.
5. Remove back panel.
14. Route cube size cap tube and bulb up the back
of the machine and into the evaporator area.
6. Cut cable tie holding cube size bulb in
evaporator well. Pull bulb out of well.
15. Insert bulb into evaporator well. Secure with tie
wrap.
16. Return all panels to their normal positions ans
secure with the original screws.
17. Reconnect power. Test machine, adjust cube
size as needed.
Bulb Well
7. Pull cube size cap tube and bulb from
evaporator area and allow to hang freely behind
machine.
Harvest Timer
1. Disconnect electrical power.
8. Remove two screws holding thermostat bracket
to cabinet. Drop bracket down and pull forward to
get access to wires and screws.
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
2. Remove service panel.
3. Remove screw in center of timer, pull out and
disconnect wires.
4. Reverse to reassemble.
September 2009
Page 26
SCCG30 & SCCP30
Service Manual
Removal and Repair - Cabinet Removal
Certain components require the removal of the
cabinet for repair access.
12. Pull clip up and pull water inlet elbow out of
inner elbow.
1. Shut machine off, if making ice, melt ice with hot
water.
13. Push inner elbow back and rotate it until it
points straight up, then push it back through the
hole in the back of the freezing compartment.
2. Remove all ice.
Inlet Elbow
3. Drain reservoir.
4. Remove service panel and kick plate.
5. Remove back panel.
Inner
Elbow
6. Disconnect electrical power.
Clip
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal
7. Disconnect water and drain tubing.
8. Remove door.
9. Remove top panel.
10. Remove curtain & hanger.
14. Remove two screws holding freezing
compartment brackets to cabinet, lift brackets up.
Bracket
11. Locate elbows where water flows onto the
evaporator platen.
September 2009
Page 27
SCCG30 & SCCP30
Service Manual
15. Lift evaporator platen up and tilt back enough
for bin assembly to clear the base.
18. Remove 1 screw at each corner of the base.
19. Lift bin assembly off the base.
Note: Prop evaporator assembly up. A 3' length of
3/4" PVC tubing with one end inserted into the cup
mold and the other against the base will hold it up.
The hot gas valve, fan motor, condenser and
compressor are now exposed for service.
16. Remove air baffle.
Air Baffle
17. Unplug wire harness connector (at back of bin).
September 2009
Page 28
SCCG30 & SCCP30
Service Manual
Refrigeration Service
This ice machine use R-134a type refrigerant.
There are specific rules for handling that
refrigerant.
To check for system pressures, add a field supplied
clamp-on type service valve as a temporary means
of system access. After diagnosis and before final
repair, replace the clamp-on type valve with valves
that are brazed onto the process tubes of the
system.
Use a low flow of dry nitrogen when brazing on the
system.
Install a new filter drier when replacing a
refrigeration component or after a refrigerant leak
repair.
Evacuate the system to at least 300 microns and
use a micron gauge to measure the evacuation
level.
Weigh in the nameplate charge. The machine is
critically charged and a partial ounce mis-charge
will affect performance.
September 2009
Page 29
DCE33
INTRODUCTION
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
TECHNICAL INFORMATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2
CABINET DIMENSIONS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 3
INSTALLATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 4
TO INSTALL: Plumbing · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 5
TO INSTALL: Plumbing · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 6
TO INSTALL: Plumbing · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 7
TO INSTALL: Plumbing · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 8
TO INSTALL: Plumbing · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 9
TO INSTALL: Add On Kits · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 10
TO INSTALL: Add On Kits · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 11
AFTER INSTALLATION
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 12
AFTER INSTALLATION - OPERATION
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 13
OPERATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 14
COMPONENT LOCATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 15
MAINTENANCE AND CLEANING · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 16
CLEANING · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 17
ADJUSTMENTS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 18
ADJUSTMENTS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 19
HARVEST TIME ADJUSTMENT, models DCE33A-1BD or DCE33PA-1BD · · · · · · · · · · · Page 20
SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 21
SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 22
REPAIR · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 23
REPAIR · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 24
REPAIR · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 25
REPAIR · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 26
Parts lists and wiring diagrams are located in the
center of the manual.
September 2011
Page 1
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.
Cool Air In
Warm Air Out
Serial Number
Tag Location
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
Basic
Maximum Cabinet Drain
Electrical Fuse Size Color
Pump?
DCE33A-1WB 115/60/1 15 amp
White
No
DCE33PA-1WB 115/60/1 15 amp
White
Yes
DCE33A-1BB
115/60/1 15 amp
Black
No
DCE33PA-1BB 115/60/1 15 amp
Black
Yes
DCE33A-1SB
115/60/1 15 amp
Black
No
with SS
door
DCE33PA-1SB 115/60/1 15 amp
same
Yes
DCE33A-1WC 115/60/1 15 amp
White
No
DCE33PA-1WC 115/60/1 15 amp
White
Yes
DCE33A-1BC
115/60/1 15 amp
Black
No
DCE33PA-1BC 115/60/1 15 amp
Black
Yes
DCE33A-1SC
115/60/1 15 amp
Black
No
with SS
door
DCE33PA-1SC 115/60/1 15 amp
same
Yes
DCE33A-1BD
115/60/1 15 amp
Black
No
DCE33PA-1BD 115/60/1 15 amp
Black
Yes
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
D series (example DCE33PA-1BD) only available in Black.
D series also utilizes an electronic harvest timer. All others
equipped with mechanical timer.
September 2011
Page 2
DCE33
CABINET DIMENSIONS
DCE33 Cabinet Views
Refrig.
Pump Drain Hose is 3/8"
ID
Ice
Machine
Overhead View of DCE33 and
Companion Refrigerator Side By
September 2011
Page 3
DCE33
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 1000 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 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 DCE33 will have a lower
mineral content than the water it was made from.
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:
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.
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.
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.
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.
September 2011
Page 4
DCE33
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 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.
Installations on a slab: Use a pump
(DCE33PA-1) 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
Note: When installed in a corner, the door
Install Unit
swing may be limited due to handle contact
Flush With Floor 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
To Drain
Normal Drain Line, Pitched
Down From Ice Machine
Good Draining
With Trap, Causes Poor Draining
Poor Draining
With Trap And Vent,
Draining Is Normal
Good Draining
EXAMPLES OF GRAVITY DRAIN TUBE INSTALLATIONS
September 2011
Page 5
DCE33
TO INSTALL: Plumbing
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
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.
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.
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.
Water Filter
(Recommended)
Shut Off Valve
Drain Detail
Water Inlet
Connection Detail
Floor Drain
INSTALLATION OF WATER AND DRAIN
September 2011
Page 6
DCE33
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 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 kickplate 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
15 14" WIDE X 33 34" HIGH.
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
Air Gap Device
(Where Required)
WATER AND DRAIN
INSTALLATION
Drain
Connection
Drain Tube
From Back Of
Machine
Water Shut
Off Valve
Water Filter
(Recommended)
Water Inlet Connection
September 2011
Page 7
DCE33
TO INSTALL: Plumbing
Built In, Gravity Drain Model:
6. Push ice machine into installed position.
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.
7. Cut off water inlet line at required length.
Note: Poor draining will cause a high rate of ice
melting in the bin.
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.
1. Place ice machine in front of installed location.
Adjust leg levelers to approximately correct
position.
2. Remove kickplate and the access cover above
it.
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. Note: if using a long horizontal run (more
than 5’) the drain should be vented at back of
cabinet.
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.
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 kickplate 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
Water Filter
(Recommended)
Shut Off Valve
Drain
Connection
Water Inlet Connection
Detail
September 2011
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.
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.
3. Route water inlet line from wall through ice
machine to the front.
12. Pour a couple of quarts of water into the
storage bin, the drain pump should start and pump
water out. Check for leaks.
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.
13. Replace kickplate and control box cover.
Note: Often an air gap is required by local codes
between the ice machine drain tube and the drain
receptacle.
ALL PLUMBING MUST MEET LOCAL CODES
14. Level the cabinet as needed.
6. If electrical outlet for ice machine is behind the
cabinet, plug in the ice machine now.
7. Push ice machine into installed position.
THE DCE33 WILL FIT IN A SPACE
15
1 " WIDE X 33 3 " HIGH.
4
4
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
8. Cut off water inlet line at required length.
Air Gap Device
(Where Required)
WATER AND DRAIN
INSTALLATION
Drain
Connection
Drain Tube From
Back Of Machine
Water Shut Off
Valve
Water Filter
(Recommended)
Water Inlet Connection
September 2011
Page 9
DCE33
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 (all except DCE33A-1BD)
Drain pump kit part number.................................A39885-001 for DCE33A-1BD
Drain pump part number . . . . . . . . . . . . . . . . . . 12-2503-21
Drain Pump
Specific step-by-step instructions are included with
the kit.
September 2011
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 1516"
high and 14" 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.
Parts Involved in Customizing Door Panel
Custom Panel,
Thin Panel
Shown With Filler
3. Open the door slightly, about one-third
or so; then, remove the front screw
holding the hinge to the door.
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.
Hinge
Hinge
Filler Plate
Door With
Groove
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.
Door Handle
8. Replace the door handle and filler
plate; secure with screws previously
removed.
September 2011
Page 11
DCE33
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.
Note: There is a part, packed with the machine,
that is required for this procedure.
Door Handle
1. Open the door and remove the three screws
holding the lower hinge to the cabinet.
Hinge
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.
Filler Plate
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.
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 Hinge
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.
Magnetic
Gasket
Reverse Hinges From Top to Bottom and
Left to Right to Reverse Door Swing
September 2011
Page 12
Door
DCE33
AFTER INSTALLATION - OPERATION
Final Check List
How To Use:
1. Has the machine been properly uncrated, and
have all packing materials and tape been removed
from inside the bin?
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. A new machine, warm out of the box, could
take as long as 48 hours to fill and shut off.
2. Have the installation instructions been followed,
including connecting the machine to water, drain
and electricity?
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).
3. Has the machine been leveled?
Initial Start Up - DCE33A-1BD or
DCE33PA-1BD
What to expect from the DCE33
1. Turn on water supply.
2. With unit plugged in, rotate ice machine control
knob to the ON position.
3. 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 18.
4. After the cubes are confirmed to be the correct
size, replace all panels.
5. 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:_____________________
6. Fill out and mail the Warranty Registration.
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 1 14"
in diameter at the widest end; taper down to 1"
wide at the top; and are 1 18" high. When the
machine is adjusted properly, there should be a 14"
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.
The DCE33 will continue to operate until ice builds
up high enough to contact the bin thermostat
sensor tube, then it will 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 will run
to replace melted ice is about 6 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.
A machine that has been emptied will usually take
about 24-36 hours to re-fill.
September 2011
Page 13
DCE33
OPERATION
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 start. After a few minutes the
timer will stop the freeze cycle and begin the
harvest.
Schematic Diagram - Shown In
Harvest Cycle
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.
Water
Inlet Cube Molds
Evaporator
Weep
Hole
Spray Jets
Water Tube
Reservoir
Condenser
Compressor
September 2011
Page 14
DCE33
COMPONENT LOCATION
Door Gasket
Curtain
Reservoir
Bin
Thermostat
Bracket
Control Knob
Control Box
Cover
Kickplate
September 2011
Page 15
DCE33
MAINTENANCE AND CLEANING
What shouldn’t be done?
How to clean the condenser.
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.
The condenser is like the radiator on a car, it has
fins and tubes that can become clogged. To clean:
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 will dictate even more frequent cleaning
of the ice making section, and some carpets or
pets will dictate more frequent cleaning of the
condenser.
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
What should be kept clean?
There are 5 things to keep clean:
1. The outside cabinet & door.
2. The ice storage bin.
4. Replace the kickplate.
3. The condenser.
Winterizing
4. The ice making system.
1. Clean the machine as explained on the next
page.
5. The ice scoop.
2. Turn off the water supply.
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.
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.
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 0F. 1150F.) 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.
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
2
gallon
Note: To use after winterizing,
of RV antifreeze (propylene glycol) poured into the
reconnect pump hose and water line. ice storage bin drain.
Repeat Initial Start Up.
Note: Automotive antifreeze must NOT be used.
8. Replace control box cover. Switch off and
unplug the machine.
September 2011
Page 16
DCE33
CLEANING
How to clean the ice making system.
4. Turn the ice machine control to ON.
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.
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.
6. Pour hot (950F. - 1150F.) water into the bin to
melt the ice that has formed. That ice will likely be
white and frosty looking.
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.
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.
September 2011
Page 17
DCE33
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.
SIDE VIEW OF CUBES
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.
TOO
BIG
1. Open the door and remove the control box
cover.
2. Locate the cube size adjustment screw, and to
make fuller cubes, turn the screw clockwise about
CORRECT
SIZE
CUBE SIZE ADJUSTMENT
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.
TOO
SMALL
September 2011
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.
Timer - up to DCE33A-1BD or
DCE33PA-1BD
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:
1. To lower the ice level, turn the knob
counterclockwise. Usually a 1/8 turn will be
enough.
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
1. Unplug or disconnect the electrical power.
2. Remove the kickplate.
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.
2. To increase the ice level, turn the knob
clockwise. Usually a 1/8 turn will be enough.
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.
September 2011
Page 19
DCE33
HARVEST TIME ADJUSTMENT, models DCE33A-1BD or DCE33PA-1BD
The harvest time can be adjusted so that all the ice
is released during the harvest period, with a few
seconds extra for a safety margin. The adjustment
range is between 2 to 5 minutes.
There is an adjustment screw on the surface of the
electronic timer. Rotate the screw CCW to reduce
harvest time, and CW to increase it. It should be
set to match the machine's performance. If the
machine takes 2 and a half minutes to release the
ice, the harvest time should be set to about 3
minutes.
September 2011
Page 20
DCE33
SERVICE DIAGNOSIS
PROBLEM
The machine does not operate
POSSIBLE CAUSE
The machine is unplugged
Breaker tripped or fuse is blown.
Ice machine control turned to
OFF.
Bin thermostat open keeping
machine off.
Cubes are too big
Timer contacts open.
Cube size control set too cold.
Cubes are too small
Cube size control set too warm.
Not enough water.
Cube size control stuck closed timer runs all the time.
Cubes are partially formed - have Spray jets partially clogged.
ragged sides
Machine makes ice, but bin does The bin should fill up and the
not fill up with ice
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.
Cubes are partially formed - are
white at the bottom
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 cube size control
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.
Not enough water in the reservoir. 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.
September 2011
Page 21
DCE33
SERVICE DIAGNOSIS
PROBLEM
No ice falling in bin, but machine
operates
POSSIBLE CAUSE
PROBABLE CORRECTION
Ice may be stuck in the evaporator Check water supply - filter may be
and the unit is “frozen up”.
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.
Too much heat load.
Inlet water valve leaks thru, needs
to be replaced.
No water spray
Water pump does not work,
replace it.
Water leak from reservoir, locate
and repair.
Cube size control will not close
See “Too much heat load” or “not
enough refrigerant”
Control defective - must be
replaced.
No airflow
Fan motor not turning, needs to
be replaced.
Fan blade broken, needs to be
replaced.
Condenser completely blocked
up, needs cleaning.
Not enough refrigerant
Add low side access valve, locate
leak, recover refrigerant, repair,
replace dryer, evacuate and weigh
in the nameplate charge.
Restricted system
Add low side access valve,
recover refrigerant, replace dryer,
evacuate and weigh in the
nameplate charge.
Hot gas valve leaks thru
Add low side access valve,
recover refrigerant, replace hot
gas valve and dryer, evacuate and
weigh in the nameplate charge.
Compressor will not operate or
Start relay or capacitor needs to
pumps poorly.
be replaced.
Add low side access valve,
recover refrigerant, replace
compressor and dryer, evacuate
and weigh in the nameplate
charge.
September 2011
Page 22
DCE33
REPAIR
Curtain
Inlet Water Valve
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
The curtain keeps the water that sprayed by the
pump from falling in the bin.
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.
2. Shut off water supply
3. Remove kickplate
The “sheet” type curtain is replaced by:
4. Remove the control box cover.
1. Removing 4 screws holding the curtain and the
curtain stiffener to reservoir.
5. Unscrew flare nut from inlet water valve inlet . If
the valve is being replaced, proceed to step 10.
2. Pulling the curtain and curtain stiffener out of the
machine.
6. Unscrew brass fitting from body of inlet water
valve.
SERVICE OF THE INLET
WATER VALVE
3. Replace with a new curtain and install as shown.
Inlet Water Valve
Screen
Curtain
Sheet
Type:
Curtain
Stiffener
Inlet
Outlet
Bottom Edge
Angle to Rear
Curtain
Screw
Front Edge of
Reservoir
Curtain and Curtain Stiffener MUST Be Installed
As Shown
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.
September 2011
Page 23
DCE33
REPAIR
Timer - All except DCE33A-1BD or
Harvest Timer - DCE33A-1BD or DCE33PA-1BD
1. Disconnect electrical power.
Electrical Shock Hazard
2. Remove service panel.
Disconnect Electrical
Power Before Beginning
Removal of Parts
3. Remove screw in center of timer, pull out and
disconnect wires.
4. Reverse steps to reassemble.
DCE33PA-1BD
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 will 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.
September 2011
Page 24
DCE33
REPAIR
Cube Size Control
Bin Thermostat
The bin thermostat is the automatic on-off control
for the ice machine.
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
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.
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.
4. Remove the kickplate.
1. Unplug or disconnect the electrical power to the
ice machine.
7. Remove the screws holding the bin thermostat
to the control box.
5. Remove the control knob
6.. Remove the control box cover.
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
and from the ice machine.
9. Reverse the above steps to replace.
CUBE SIZE CONTROL
REPLACEMENT
Socket
Bin Thermostat
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.
Pig Tail
10. Reverse the above steps to replace.
10. Adjust the cube size control per the adjustment
sequence on page 16.
September 2011
Page 25
DCE33
REPAIR
Spray Pump
Spray Jets
Electrical Shock Hazard
Disconnect Electrical
Power Before Beginning
Removal of Parts
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).
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.
Curtain
Curtain Stiffener
A. Loosen the hose clamps from the pump hoses.
B. Remove the pump hoses from their
connections.
Cap
3. Disconnect water and drain tubes.
Spinner
Jet Base
Reservoir
Body
Pump Hose Removal
Spray Pump
(for reference)
Suction
Hose
Hose Clamp
Cube
Chute
O-Ring
Pump
Discharge
O-Ring
Reservoir
(for reference)
4. Carefully pull machine out from its installed
location to expose the back panel.
Back view of
Reservoir
5. Remove the back panel.
6. Disconnect wires from the top of the pump
motor.
7. Remove two screws holding pump to bin, and
remove the pump from the ice machine.
8. Reverse the above steps to re-assemble.
September 2011
Page 26
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