Scotsman CME1056R User Manual
Introduction
CME1056R
This product manual contains the information
needed for the setup, installation, initial start up,
sanitation and maintenance of this ice machine.
Keep it for future reference.
Be certain that the information applies to the model
in question. If no model is listed, the information
applies to all models.
TABLE OF CONTENTS
Specifications ,,,,,,,,,,,,,PAGE2
Condenser and Ice Machine Layouts , PAGE 3
Pre-Installation ,,,,,,,,,,,,,PAGE4
Location & Assembly ,,,,,,,,,PAGE5
Stacking ,,,,,,,,,,,,,,,,PAGE6
Stacking ,,,,,,,,,,,,,,,,PAGE7
Bin Control: Installation ,,,,,,,,PAGE8
For The Installer: Remote Condenser , PAGE 9
This manual is organized in the same way as the
expected use of the machine, it begins with
specifications, goes thru unpacking and setup,
shows where everything is; continues with initial
start up, then describes how it works. After that is
the sanitation section, followed by service
diagnosis and repair.
Technicians Only: Harvest Cycle Sequence &
Other Notes ,,,,,,,,,,,,,,PAGE24
Sanitation and Cleaning ,,,,,,,,PAGE25
Additional Maintenance ,,,,,,,,PAGE26
Additional Maintenance: Inlet Water Valve Screen
,,,,,,,,,,,,,,,,,,,,,PAGE27
Additional Maintenance: Ice Sensors, Condenser
,,,,,,,,,,,,,,,,,,,,,PAGE28
Service Diagnosis: Diagnostic Light Analysis
,,,,,,,,,,,,,,,,,,,,,PAGE29
Remote Condenser Location ,,,,,PAGE10
Coupling Instructions ,,,,,,,,,PAGE11
Head Pressure Control Add-On Kit , , PAGE 12
Electrical ,,,,,,,,,,,,,,,,PAGE13
Plumbing ,,,,,,,,,,,,,,,,PAGE14
After Utility Connections ,,,,,,,,PAGE15
Component Location and Function , , PAGE 16
AutoIQ Controller ,,,,,,,,,,,PAGE17
Initial Start Up ,,,,,,,,,,,,,PAGE18
Adjustments ,,,,,,,,,,,,,,PAGE19
How To Operate The AutoIQ Controller PAGE 20
How The Electronic Cuber Works , , , PAGE 21
How The Electronic Cuber Works , , , PAGE 22
Technicians Only: Freeze Cycle Sequence
,,,,,,,,,,,,,,,,,,,,,PAGE23
Service Diagnosis ,,,,,,,,,,,PAGE30
Service Diagnosis: Components,,,,PAGE31
Service Diagnosis ,,,,,,,,,,,PAGE32
PTCR Diagnosis ,,,,,,,,,,,,PAGE33
Operational Characteristics: CME1056R
,,,,,,,,,,,,,,,,,,,,,PAGE34
Removal and Replacement ,,,,,,PAGE35
Removal and Replacement ,,,,,,PAGE36
Removal and Replacement: AutoIQ Controller
,,,,,,,,,,,,,,,,,,,,,PAGE37
Removal and Replacement: Water Level Sensor
,,,,,,,,,,,,,,,,,,,,,PAGE38
Removal and Replacement ,,,,,,PAGE39
Refrigerant ,,,,,,,,,,,,,,,PAGE40
Before Calling for Service ,,,,,,,PAGE41
Parts Lists and Wiring Diagrams are in the section at the center of this manual.
May 2000
Page 1
CME1056R
Specifications
Both of these ice machines are designed to be
installed indoors, in a controlled environment. They
can operate satisfactorily under a wide variety of
conditions. However, Do NOT operate the
machine in temperatures it has not been designed
for. Do NOT operate the machine above or below
the voltage limits for the particular model. Do NOT
operate the machine with too little or too much
water pressure.
Operational Limits
Minimum Maximum
Air Temperature 50oF. 100oF.
Water Temperature 40oF. 100oF.
Water Pressure 20 psi 80 psi
Voltage (60 Hz) 197 253
Voltage (50 Hz) 207 253
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and designs are subject to change
without notice.
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.
Bins:
All models will fit a standard, 30" wide or wider
open top Scotsman Ice Storage Bin. Some
examples are:
BH550
•
HTB555
•
Dispensers
ID200 or ID250, use adapter KBT44
•
Lancer 30” wide dispenser. Add adapter kit
•
KSTAT-MD.
Kits
BH800 bin: Add kits KBT23
•
BH900 bin: Add kits KBT22
•
In addition, there may be other bins and
dispensers that can be used, check Scotsman’s
sales literature for application information.
Stacking
Stacking two CME1056s together requires
•
use of stacking kit KSCME6-MD
Precharged Tubing:
•
25’ RTE25
•
40’ RTE40
•
75’ RTE75
Headmaster Kit:
•
The kit required to connect this ice machine
to an approved central condenser is:
RCKCME6GX.
BASIC INFORMATION
Dimensions
Model Number
CME1056RS-32D 30½“x24"x28 208-230/60/1 ECR311-32A 208 oz 17.25 20
CME1056RS-3D same 208-230/60/3 ECR311-32A 208 oz 12.13 15
CME1056RS-6D same 230/50/1 ERC311-32A 208 oz
WxDxH
(w/o bin)
Basic Electrical
(volts/Hz/phase)
Use
Condenser
* The remote condenser is designed to work in temperatures from -20oF. to 120oF.
Use precharged tubing kits, RTE25 (25’) or RTE40 (40’) or RTE75 (75’). Select the length closest to the
needs of the particular installation.
March 2003
Page 2
Refrigerant
Charge
R-404A
Minimum
Circuit
Ampacity
Maximum
Fuse Size
Condenser and Ice Machine Layouts
.88 DIA. ELECTRICAL
INLET
DISCHARGE LINE
1/2" MALE CPLG.
29.50 in
74.9 cm
CME1056R
ERC311
.562 DIA.
MOUNTING
HOLES (4)
CONDENSER FINS
15-0782-01CANCAUSEINJURYOR DEATH:DISCONNECT ALL REMOTE ELECTRICPOWERSUPPLIESBEFORESERVICING.RISKOFELECTRICSHOCK^MWARNING
23.54 in
59.7 cm
29.15 in
74.0 cm
2.75
35.72 in
90.7 cm
2.84 in
7.2 cm
6.00 in
15.2 cm
38.47 in
97.7 cm
32.32 in
82.1 cm
28.07 in
71.2 cm
7.60 in
19.3 cm
MINIMUM FOR
UTILITY CONNECTIONS
24.71 in
62.7 cm
11.50 in
29.2 cm
14.56 in
36.9 cm
27.56 in
70.0 cm
29.19 in
74.1 cm
PLAN VIEW
.65 in
1.7 cm
LIQUID LINE
3/8" MALE CPLG.
AIR FLOW
2.70 in
6.9 cm
ICE
OPENING
REMOTE CONDENSER
LIQUID LINE
3/8" MALE CPLG.
REMOTE CONDENSER
DISCHARGE LINE
1/2" MALE CPLG.
21.75 in
55.2 cm
19.90 in
22.15 in
56.3 cm
50.5 cm
15.75 in
40.0 cm
SUMP DRAIN
3/4" F.P.T.
BACK VIEW
.88 DIA. KNOCKOUT
ELECTRICAL INLET
20.12 in
51.1 cm
22.25 in
56.5 cm
10.75 in
27.3 cm
May 2000
Page 3
.88 DIA. KNOCKOUT
REMOTE CONDENSER FAN
WATER INLET
3/8" FLARE
17.68 in
44.9 cm
4.31 in.
10.9 cm
2.38 in
6.0 cm
4.75 in
12.1 cm
18.70 in
47.5 cm
ICE
OPENING
SIDE VIEW
24.00 in
61.0 cm
9.85 in
25.0 cm
1.63 in
4.1 cm
CME1056R
Pre-Installation
Other Applications:
Check sales literature for additional information.
Note: Slope-front bins must have an internal baffle.
Scotsman HTB555 and BH550 have the required
baffle. Baffle must be approximately in the position
shown in the diagram below.
Baffle
12.0"
4.0"
Side View
Electrical:
Check the nameplate for electrical requirements.
The nameplate is located on the back of the ice
machine. If the information on the nameplate is
different from other published information, go by
the nameplate data.
While the model and
serial number are on
the nameplate, a
serial number plate
is located at the
front of the machine,
behind the front
panel and to the right
of the purge valve.
Water:
There is no such thing as pure water. All water
contains some impurities. There are two ways
water carries the impurities: suspended and
dissolved. Suspended solids can be filtered out.
Dissolved solids must be diluted or treated. Water
filters are recommended to remove suspended
solids. Some filters also have treatment in them for
dissolved solids. Check with a water treatment
service for a recommendation.
Cube Ice machines use more water than what
ends up in the bin as ice. While most water is used
during ice making, a portion is designed to “rinse"
out the water system to keep hard water scale
from clogging up the machine. That water rinse,
combined with water filters, prolongs the times
between needed water system cleaning.
Service Technicians: All models covered here
come set from the factory with at a “Standard”
water rinse. Standard water rinse is designed to be
compatible with typical water conditions. The
machine may be adjusted to a different water rinse
after start up. If the prior ice machine worked
acceptably well with the local water conditions,
leave the machine at the factory setting. If severe
water conditions are present, and water filters do
not solve the problem acceptably, adjust the
machine to use more water. If water conditions are
excellent, adjust the machine to use less water.
See the Adjustments section.
Note: Water use adjustments are customer
convenience adjustments; they are NOT factory
defects and are NOT covered by warranty.
Nameplate, on back panel
Serial Number Plate, remove front
panel to locate.
May 2000
Page 4
Location & Assembly
CME1056R
Locate the ice machine indoors. A 6 inch minimum
clearance on the back and sides is required for the
proper operation and service of this machine.
Locate the remote condenser as close as possible
to the ice machine. See page 11 for details.
Unpacking and Assembly:
Begin with unpacking the ice storage bin. Remove
the carton, and using part of the carton as a
cushion, tip the bin on its back to remove the skid
and attach the legs or casters. Note: Stacked
applications may not use casters.
Return the bin to an upright position. Check the bin
top gasket for gaps and tears, fill any in with food
grade sealant prior to placing the ice machine on
the bin.
Note: If recycling a prior bin, be sure that the bin
top gasket is in good condition or seal the ice
machine to the bin with food grade sealant.
Level the top edge of the bin front to back and left
to right.
Cabinet Panel Removal:
1. Remove the front panel by removing the two
screws connecting the top of the front panel to the
machine, then pull out at the bottom.
2. Lift up at the front edge and push the top panel
back until it releases from the tabs connecting it to
the back panel.
If the ice machine has not been unpacked, do so
now. Remove the carton from the skid. Remove
shipping straps.
Remove the front panels and all packaging
materials.
After all packing materials have been removed
from the ice machine, lift or hoist the machine onto
the bin. Align the sides and back of the machine
with the sides and back of the bin.
Secure the ice machine to the bin with the two
metal straps and 4 bolts provided.
3. Remove two screws at the front of each side
panel, and pull them forward until they release
from the tabs connecting them to the back panel.
May 2000
Page 5
CME1056R
Stacking
Only like models may be stacked. Begin after the
bottom unit has been placed on the ice storage bin
and secured. Stacking requires heavy duty leg kits.
Casters are NOT recommended.
Bottom Machine:
1. Remove front, side, and top panels.
2. Hang the plastic shield from the tabs on the
stainless steel bracket.
3. Locate the two notches on the sides of the top
edge of the freezing compartment.
Bracket
Mounting
Notch
11. Route the Stacking Kit wire harness from the
back to the top and bottom machines thru the
holes made in steps 8 and 9.
The harness is marked which end goes to which
machine.
Push the strain reliefs into place from the back of
the machines.
Follow local codes for 24 volt wire
4. Place the bracket over the notches of the
freezing compartment.
5. Secure bracket to freezing compartment with
screws from the kit (from the sides).
6. Locate gasket material in kit. Place a layer of
gasket material on the top edge of the plastic
freezing compartment.
7. Place the top ice machine onto the bottom one.
Secure together with hardware from the top
machine. Remove front and left side panels.
Upper Machine:
8. Knock out 1 hole in the lower left (viewed from
the front) corner of the upper unit’s back panel.
Lower Unit:
9. Knock out 1 hole in the upper left (viewed from
the front) corner of the lower unit’s back panel.
10. Position the strain reliefs over the wrapped
portion of the stacking kit wire harness.
Bin
Thermostat
Mounted in
Machine
12. Route wire harness in lower ice machine to the
controller. Connect to terminal #7. Plug the two
free wires onto thermostat terminals #1 and #2
December 1998
Page 6
Stacking
CME1056R
13. Route the wire to the controller. Connect to
terminal 7.
Thermostat
Routing
Hole
Thermostat
Bulb
Bottom Machine
14. Route the bulb of the thermostat thru the base
of the unit into the bin.
15. Mount the bulb of the thermostat to the
bracket from the kit.
16. Install the bin thermostat bracket onto the
bottom of the machine.
17. Pull back excess cap tube and coil up in the
machine.
18. Connect wires from harness to thermostat
terminals.
Both Machines:
19. Return all panels and covers to their normal
positions.
20. Complete the balance of the installation.
Thermostat &
Bracket
Mounted to
Ice Machine
Base
May 2000
Page 7
CME1056R
Bin Control: Installation
The bin control is a thermostat. It must be field
installed after the ice machine has been placed on
the bin.
Before starting, remove the front panel and any
baffle in the bin.
1. Locate bin thermostat bulb.
3. Route bulb thru routing tube (located between
the compressor and the reservoir).
6. Fasten the bracket to the bottom of the ice
machine with the two 3-pronged knobs supplied
with the unit.
7. Pull back into the ice machine any excess
capillary tubing.
8. Return the baffle to the bin and continue with
the installation.
Note: If the machine is located at an altitude
higher than 2,000 ft., adjust the thermostat by
removing the plastic cover and rotating the
adjustment screw per the table.
4. Locate bin thermostat bracket.
5. Carefully position the thermostat bulb on the
bracket.
Bin Thermostat Altitude Correction Table
CW Turns of Range Screw (under plastic cover)
Feet Turns Feet Turns
2000 55
4000 160
6000 250
o
o
o
8000 340
9000 385
10000 405
o
o
o
Use This Table to Adjust Thermostat
May 2000
Page 8
For The Installer: Remote Condenser
CME1056R
Locate the condenser as near as possible to the
interior location of the ice maker.
Note: The location of the condenser relative to the
ice machine is LIMITED by the specification on the
following page.
Select the best available location, one that protects
the condenser from extremes of dust, grease and
sun.
Meet all applicable building codes.
Roof Attachment
Install and attach the remote condenser to the roof
of the building, using the methods and practices of
construction that conform to the local building
codes, including having a roofing contractor secure
the condenser to the roof.
Note: If using any other condenser
besides the ERC311, its use must be
approved by Scotsman, and a head
pressure control valve must be
connected to the condenser coil. The
head pressure valve kit number is:
RCKCME6
Precharged Line Routing
Do not connect the precharged tubing
until all routing and forming of the tubing
is complete. See the Coupling
Instructions for final connections.
Note: Excess tubing may EITHER be coiled up
INSIDE the building OR cut out prior to connection
to the ice maker and condenser.
If the excess tubing is cut out, after re-brazing the
tubing must be evacuated prior to connection to
the ice maker or condenser.
If the excess tubing is to be coiled, spiral it
horizontally to avoid excess trapping in the lines.
Note: A 36" service loop may be placed behind the
ice machine.
5. Have the roofing contractor seal the holes in the
roof per local codes.
ERC311 Remote
Condenser
Electrical Power
Supply
Coil Excess
Tubing
Horizontally
Within the
Building
1. Each set of pre-charged tubing lines
contains a
1
” diameter discharge line. Both ends of
2
3
“ diameter liquid line, and a
8
each line have quick connect couplings,
the end without access valves goes to
the ice maker.
Note: The openings in the building ceiling
or wall, listed in the next step, are the
minimum sizes recommended for
passing the refrigerant lines through.
2. Have the roofing contractor cut a
minimum hole for the refrigerant lines of
2“. Check local codes, a separate hole
may be required for the electrical power
supply to the condenser.
Caution: Do NOT kink the refrigerant
tubing while routing it.
3. Route the refrigerant tubes thru the
roof opening. Follow straight line routing
whenever possible.
Typical Installation
May 2000
Page 9
CME1056R
Remote Condenser Location
Use the following for planning the placement of the
condenser relative to the ice machine
Location Limits - condenser location must not
exceed ANY of the following limits:
Maximum rise from the ice machine to the
•
condenser is 35 physical feet
Maximum drop from the ice machine to the
•
condenser is 15 physical feet
Physical line set maximum length is 100
•
feet.
Calculated line set length maximum is 150.
•
Calculation Formula:
Drop = dd x 6.6 (dd = distance in feet)
•
Rise = rd x 1.7 (rd = distance in feet)
•
Horizontal Run = hd x 1 (hd = distance in
•
feet)
Calculation: Drop(s) + Rise(s) + Horizontal
•
Run = dd+rd+hd = Calculated Line Length
Configurations that do NOT meet these
requirements must receive prior written
authorization from Scotsman.
Do NOT:
Route a line set that rises, then falls, then
•
rises.
Route a line set that falls, then rises, then
•
falls.
Calculation Example 1:
The condenser is to be located 5 feet below the ice
machine and then 20 feet away horizontally.
5 feet x 6.6 = 33. 33 + 20 = 53. This location would
be acceptable
Calculation Example 2:
The condenser is to be located 35 feet above and
then 100 feet away horizontally.
35 x 1.7 = 59.5. 59.5 +100 = 159.5. 159.5 is
greater than the 150 maximum and is NOT
acceptable.
rd
22.87"
dd
17.15"
Max 35’
Max 15’
Remote
Condenser
Located ABOVE
Ice Machine
Remote
Condenser
Located BELOW
Ice Machine
hd
40.35"
Condenser Distance &
Location Schematic
May 2000
Page 10
Coupling Instructions
CME1056R
The couplings on the ends of the pre-charged line
sets are self-sealing when installed properly.
Follow these instructions carefully.
These steps must be performed by an EPA
Certified Type II or higher technician.
Initial Connections
1. Remove the protector caps and plugs. Wipe the
seats and threaded surfaces with a clean cloth to
remove any possible foreign matter.
2. Thoroughly lubricate the threads, o-rings,
diaphragms and all internal coupling surfaces with
polyolester refrigerant oil.
Clean and Lubricate Couplings
3. Position the fittings on the correct connections
on the condenser and ice machine.
•
1
The
“ discharge line (schrader valve end)
2
goes to the remote condenser fitting marked
“discharge line”.
•
3
The
“ liquid line (schrod valve end) goes to
8
the remote condenser fitting marked “liquid
line”.
•
1
The
“ discharge line goes to the ice maker
2
fitting marked “discharge line”.
•
3
The
“ liquid line goes to the ice maker
8
fitting marked “liquid line”.
4b. Using two wrenches, one to rotate the swivel
nut and one to hold the tubing in place, tighten
each coupling.
It is CRITICAL that ONLY the NUT on the
pre-charged tube be turned, or the diaphragms will
be torn by the piercing knives and become loose in
the refrigeration system causing severe
operational problems.
Tighten Swivel Nut
Note: As the coupling is tightened, the diaphragms
in the quick connect couplings will begin to be
pierced. As that happens, there will be increased
resistance to tightening the swivel nut.
4c. Continue tightening the swivel nut until it
bottoms out or a very definite increase in
resistance is felt (no threads should be showing).
Do NOT overtighten.
5. Use a marker or pen to mark a line on the
coupling nut and unit panel. Then tighten the
coupling nut an additional one-quarter turn. The
line will show the amount that the nut turns.
6. After all connections have been made, and after
the liquid line valve has been opened (do not open
yet), check the couplings for leaks.
Note: The system charge is contained in the
receiver tank of the ice machine. Only “holding"
charges are present in the “pre-charged" tubing or
the condenser.
Final Connections:
4a. Begin to tighten the couplings together by
hand. Continue to turn the swivel nuts by hand
until it is certain that the threads are properly
engaged.
May 2000
Page 11
Rotate Swivel Nut ¼ Turn More
CME1056R
Head Pressure Control Add-On Kit
Kit: RCKCME6GX
Required when a CME1056R is to be connected to
a Remote Condenser that is not equipped with a
Head Pressure Control Valve
Required Tools: Screwdriver; Drill; 5/32" drill bit;
Two Adjustable Wrenches; POE Oil
1. Remove cover from metal box.
2. Locate correct position on condenser: The
RCKCME6GX can fit either a Mac G series or a
Mac X series condenser.
3. Use metal box as a template, mark the positions
of 4 holes to be drilled to mount the box to the
condenser.
4. Drill four .157" (#22 or 5/32" bit) dia. holes.
5. Remove plastic covers from the condenser’s
quick connects and those to be used to connect to
the condenser.
6. Thoroughly clean and lubricate the threads and
diaphragms of both the condenser’s and the kit’s
quick connects. Use Polyolester oil.
8. Start the swivel nuts by hand.
Use a back up wrench to be certain that the
•
tubing is NOT ROTATING. Only the SWIVEL
NUTS should be rotating!
Then use an adjustable wrench to tighten
•
them until no threads are seen AND a very
definite resistance is felt.
9. Mark the positions of the swivel nuts to the
condenser panel.
10. Rotate the swivel nuts additional one-quarter
turn.
11. Place cover on metal box & secure with
screws.
12. Finish the balance of the installation. Ice
machine’s precharged line sets will now connect to
the quick connect fittings on the metal box instead
of the condenser’s.
7. Mount the box to the condenser with the screws
from the kit.
Central
Condenser
Connections
to Central
Condenser
RCKCME6GX
on G series
RCKCME6GX
on X series
March 2003
Page 12
Pre-Charged Lines
from Ice Machine
connect here
Electrical
CME1056R
All models must be installed with the correct wire
size and type per the National Electric Code.
Locate the nameplate on the back of the cabinet
and find the numbers for Voltage, Phase, Minimum
Circuit Ampacity and Maximum Fuse Size. Either
fuses or HACR type circuit breakers may be used.
The ice maker is designed to operate on its own
electrical circuit and must be individually fused.
Voltage variation must not exceed the limits listed
on page 2.
The remote condenser is designed to be powered
from the ice machine. A separate knockout hole
has been provided in the ice maker electrical
junction box.
Remote Condenser
Power Connection
Note: Central Condensers connected to more than
one refrigeration system will likely have a wiring
scheme to control the fan motor. Follow those
directions for condenser wiring.
Electrical connections are made in the junction box
in the back of the cabinet.
1. Remove the junction box cover.
2. Knock out both holes for a field supplied strain
relief.
Note: An external junction box may be mounted to
the back of the machine. Holes are pre-drilled for a
open back box such as Scotsman part number
12-2374-01.
3. Install wires and strain reliefs per code. Note:
Condenser fan motor wires are tagged.
4. Connect to wires and secure ground wire to
ground screw inside junction box.
All external wiring should conform to the national,
state and local electrical code requirements.
Usually an electrical permit and the services of a
licensed electrician will be required.
Interconnecting
Wires
Power
Supply
Power OUT
Power IN
May 2000
Page 13
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