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Scotsman CME1356R User Manual

Scotsman ice systems ice maker user manual
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See also: User Manual
Introduction
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.
There are 2 models covered in this manual:
•
CME1356R, (5 evaporators)
•
CME1656R, (6 evaporators)
Specifications . . . . . . . . . . . . . . . . . PAGE 2
Pre-Installation . . . . . . . . . . . . . . . . . PAGE 4
Bin Control: Installation . . . . . . . . . . . . PAGE 6
Bin Control . . . . . . . . . . . . . . . . . . . PAGE 7
Stacking . . . . . . . . . . . . . . . . . . . . PAGE 8
Remote Condenser Location . . . . . . . . . PAGE 11
Coupling Instructions . . . . . . . . . . . . . PAGE 12
Electrical . . . . . . . . . . . . . . . . . . . . PAGE 14
Plumbing . . . . . . . . . . . . . . . . . . . . PAGE 15
After Utility Connections . . . . . . . . . . . . PAGE 16
AutoIQ Controller . . . . . . . . . . . . . . . PAGE 18
Initial Start Up . . . . . . . . . . . . . . . . . PAGE 19
Adjustments . . . . . . . . . . . . . . . . . . PAGE 20
How The Electronic Cuber Works . . . . . . . PAGE 22
Parts Lists and Wiring Diagrams are in the section at the center of this manual.
CME1356R and CME1656R
Be certain that the information applies to the model
in question. If no model is listed, the information
applies to all models.
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.

TABLE OF CONTENTS

Sanitation and Cleaning . . . . . . . . . . . PAGE 26
Additional Maintenance . . . . . . . . . . . PAGE 27
Service Diagnosis . . . . . . . . . . . . . . PAGE 32
Service Diagnosis: Components . . . . . . . PAGE 33
Service Diagnosis . . . . . . . . . . . . . . PAGE 34
PTCR . . . . . . . . . . . . . . . . . . . . . PAGE 35
Removal and Replacement . . . . . . . . . PAGE 38
Removal and Replacement . . . . . . . . . PAGE 39
. . . . . . . . . . . . . . . . . . . . . . . . PAGE 40
Removal and Replacement . . . . . . . . . PAGE 42
Refrigerant . . . . . . . . . . . . . . . . . . PAGE 43
Before Calling for Service . . . . . . . . . . PAGE 45
May 2000
Page 1
PAGE 31

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Summary of Contents for Scotsman CME1356R

  • Page 1: Table Of Contents

    PTCR ..... PAGE 35 Operational Characteristics: CME1356R . . . PAGE 36 Operational Characteristics: CME1656R . . . PAGE 37 Removal and Replacement .

  • Page 2: Specifications

    The stacking kit required to place two like model cubers together is: KSCME6-LG-B. The kit required to connect this ice machine to a central condenser is: RCKCME6GX Bins: All models will fit a standard, 48" wide or wider open top Scotsman Ice Storage Bin. Some examples are: · BH900 ·...

  • Page 3: Condenser And Ice Machine Layouts

    MINIMUM FOR AIR VENTILATION REMOTE CONDENSER LIQUID LINE 3/8" MALE CPLG. 23.30 in 59.2 cm 22.65 in 57.5 cm CME1356R and CME1656R .88 DIA. ELECTRICAL INLET DISCHARGE LINE 1/2" MALE CPLG. 2.75 38.47 in 97.7 cm 32.32 in 82.1 cm 35.72 in...

  • Page 4: Pre-Installation

    CME1356R and CME1656R Pre-Installation Other Applications: Check sales literature for additional information. 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.

  • Page 5: Location & Assembly

    Secure the ice machine to the bin with the two metal straps and 4 bolts provided. CME1356R and CME1656R Cabinet Panel Removal: 1. Remove the front panel by removing the two screws connecting the front panel to the machine.

  • Page 6: Bin Control: Installation

    CME1356R and CME1656R 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 left front panel and any baffle in the bin.

  • Page 7: Bin Control

    CME1356R and CME1656R Bin Control Bin Thermostat Capillary Tube Bin Thermostat Bracket Mount Thermostat Capillary Tube Here Mount Bulb Tip Here Attach Thermostat Bulb to Bracket Three-Pronged Knob Thermostat and Bracket Minimize Excess Tube in Bin Attach Bracket to Bottom of Ice Machine...

  • Page 8: Stacking

    CME1356R and CME1656R Stacking - Kit KSCME6-LG-B 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. Note: Instructions are for either model.
  • Page 9 CME1356R and CME1656R Stacking Gasket on Plastic Walls of Lower Unit Gasket for Metal Edges of Bottom Unit Shield Hanger Front-to-Back Bracket Support Bracket Mounting Straps Shield and Hardware May 2001 Page 9...

  • Page 10: For The Installer: Remote Condenser

    CME1356R and CME1656R For The Installer: Remote Condenser 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.

  • Page 11: Remote Condenser Location

    Located ABOVE Ice Machine Max 35’ Max 15’ Condenser Located BELOW Ice Machine CME1356R and CME1656R Do NOT: • Route a line set that rises, then falls, then rises. • Route a line set that falls, then rises, then falls.

  • Page 12: Coupling Instructions

    The “ discharge line goes to the ice maker fitting marked “discharge line”. · The “ liquid line goes to the ice maker fitting marked “liquid line”. Note: The system charge is contained in the receiver tank of the ice machine. Only “holding"...

  • Page 13: Head Pressure Control Add-On Kit

    Head Pressure Control Add-On Kit Kit: RCKCME6GX Required when a CME1656R or CME1356R 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.

  • Page 14: Electrical

    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.

  • Page 15: Plumbing

    Field Supplied Water Filter Potable Water Source CME1356R and CME1656R Drain: All models have 1 gravity drain connection, a FPT fitting at the back of the cabinet. Use only RIGID TUBING. Flexible tubing may be easily kinked or become cracked.

  • Page 16: After Utility Connections

    CME1356R and CME1656R After Utility Connections 1. Wash out the bin. If desired, the interior of the bin could be sanitized. 2. Locate the ice scoop (if supplied) and have it available for use when needed. 3. Switch on the electrical power. Do not start the machine for 4 hours.

  • Page 17: Component Location And Function

    These control refrigerant migration during the Harvest and Off cycles. Hot Gas Valve Discharge Check Valve Water Pump Accumulator with Heat Exchange May 2001 Page 17 CME1356R and CME1656R Evaporators Inlet Water Valve Thermostatic Expansion Valve Purge Valve...

  • Page 18: Autoiq Controller

    CME1356R and CME1656R AutoIQ Controller Indicator Lights: · Bin Full: On when bin is full, goes on and off as ice falls during a harvest cycle. · Freeze: On when the unit is in the Freeze cycle, blinks when a freeze cycle is pending.

  • Page 19: Initial Start Up

    The second time it happens in a freeze cycle starts the Harvest Cycle. CME1356R and CME1656R Harvest Cycle: · The Harvest indicator light will be ON, ·...

  • Page 20: Adjustments

    CME1356R and CME1656R Adjustments If there was a problem during Initial Start Up: If a diagnostic light came on, check the following. 1. Water. A water error could have been determined by the AutoIQ Controller if the inlet water valve does not fill the reservoir or if the water pump does not start and lower the water level in the reservoir.

  • Page 21: How To Operate The Autoiq Controller

    HELD for more than 3 seconds, the unit will switch off immediately. To Reset Errors: First push and release the Off button, then push and release the Freeze button. CME1356R and CME1656R May 2001 Page 21 PUSH BUTTON CONTROL SWITCHES...

  • Page 22: How The Electronic Cuber Works

    CME1356R and CME1656R How The Electronic Cuber Works This section is intended for the technician. It is not necessary for the normal operation and maintenance of the machine. Refrigeration System: The refrigeration system is similar to that of most commercial cube ice machines. Heat is removed from the water and discharged out the condenser during the freeze cycle.
  • Page 23 The inlet water valve will “top off” the reservoir at the beginning of the next freeze cycle. CME1356R and CME1656R The AutoIQ Controller operates the ice machine by monitoring several input measures and switching various loads on and off.

  • Page 24: Technicians Only: Freeze Cycle Sequence

    CME1356R and CME1656R Technicians Only: Freeze Cycle Sequence Assuming the machine has been operational, the Freeze cycle begins with the end of the Harvest Cycle: · Water Inlet Valve is Closed · Water Pump is ON · Compressor is ON ·...

  • Page 25: Technicians Only: Harvest Cycle Sequence & Other Notes

    Bin Full: The controller will switch on the compressor for 30 seconds after 12 hours of off time to keep refrigerant out of the compressor oil. CME1356R and CME1656R Continuous Run Time A unit that operates 24 hours a day 7 days a week is too small for the user’s needs.

  • Page 26: Sanitation And Cleaning

    Return the evaporator cover to its normal position. 8. Mix a solution of 8 ounces of Scotsman ice machine cleaner and 1 gallon of warm (95-115 o F.) water. Use the solution to scrub the splash panels and cube deflectors in the separate container.

  • Page 27: Additional Maintenance

    4. Insert evaporator cover into plastic slot at the top of the compartment and then place the lower end onto the reservoir wall. CME1356R and CME1656R To drain reservoir (if desired): 1. Remove front panel. 2. Push and hold the Off button.

  • Page 28: Additional Maintenance: Water Distributors

    Soak or scrub the distributors in or with a solution of Scotsman Ice Machine Cleaner and warm potable water. 10. Return the water distributors to their normal installed position.

  • Page 29: Additional Maintenance: Inlet Water Valve Screen

    CME1356R and CME1656R Additional Maintenance: Inlet Water Valve Screen The inlet water valve has a screen on its inlet side to keep debris from flowing into the valve. In some cases, this screen may become clogged or restricted by debris build up. Check for the proper water flow: Flow rate is 2.7 G.P.M.

  • Page 30: Additional Maintenance: Ice Sensors, Condenser

    CME1356R and CME1656R Additional Maintenance: Ice Sensors, Condenser The ice sensors use a system of infrared emitting and receiving components to sense the build up of ice in the bin. They are located at the bottom of the ice outlet port. They must be free of mineral build up to function properly.

  • Page 31: Service Diagnosis: Diagnostic Light Analysis

    Same, only 1 light on Reservoir temp. wrong * Machine may be reset by pushing and releasing the Off button, then pushing and releasing the Freeze button. ** See following pages CME1356R and CME1656R Probable Correction Use some ice Check thermostat...

  • Page 32: Service Diagnosis

    CME1356R and CME1656R Service Diagnosis Problem or Symptom Possible Cause Bin controls did not sense ice falling, unit stayed in harvest until the maximum harvest time ran out. Unit is off because of a “Harvest Problem” Bin controls or AutoIQ Controller may have failed.

  • Page 33: Service Diagnosis: Components

    Contactor coil open Compressor does not Open starting components work Open windings Internal valve failure CME1356R and CME1656R Probable Correction Replace fan motor Contactor may not close. Replace pump Check electrical connections. In Freeze, the pump should have power to it. If not, replace the AutoIQ Controller.

  • Page 34: Service Diagnosis

    CME1356R and CME1656R Service Diagnosis Problem or Symptom Poor Harvest Low capacity Compressor cycles on and off Possible Cause Scale in water system. Water or Air Temperatures too cold Low system charge Bypass solenoid does not open Check valve leaks back...

  • Page 35: Ptcr

    It must cool down to about 120 F. Before current will pass through it again. CME1356R and CME1656R Diagnosis: 1. Disconnect electrical power. 2. Check if the PTCR is cool enough to handle safely.

  • Page 36: Operational Characteristics: Cme1356R

    CME1356R and CME1656R Operational Characteristics: CME1356R Cycle Times (Minutes): Freeze Harvest System Pressures (PSIG) Suction: End of Freeze Suction: Peak in Harvest Discharge: 5 minutes into Freeze 230 - 250 Discharge: Minimum in Harvest Number of Evaporators: · Refrigerant Charge ·...

  • Page 37: Operational Characteristics: Cme1656R

    Hi Pressure Cut Out - 450 PSIG · Hi Pressure Cut In - 350 PSIG Headmaster Valve · Setting is 240 PSIG CME1356R and CME1656R F. condenser air 70 F. indoor air, 50 F. water 15 ½ - 17 ½...

  • Page 38: Removal And Replacement

    CME1356R and CME1656R Removal and Replacement Inlet Water Valve 1. Remove the left front panel. 2. Shut off the water supply. 3. Push and release the OFF button. 4. Pull the wire harness off the inlet water valve. 5. Remove screws holding the inlet water valve to the cabinet.

  • Page 39: Removal And Replacement

    7. Compress each of the four stand-off posts to release the board from the stand-offs. 8. Remove the board from the unit. Reverse to reassemble. CME1356R and CME1656R Water Level Sensor/Float Stem 1. Disconnect the electrical power. 2. Remove the front panel.

  • Page 40: Removal And Replacement: Autoiq Controller

    CME1356R and CME1656R Removal and Replacement: AutoIQ Controller 1. Disconnect the electrical power. 2. Remove the front panel. 3. Remove mounting screw holding controller to cabinet. 4. Touch a metal surface to discharge any static electricity. 5. Pull controller out slightly and unplug all electrical connections.

  • Page 41: Removal And Replacement: Water Level Sensor

    The discharge line sensor is marked with yellow tape. Note: Route wires so they do NOT contact the discharge line. CME1356R and CME1656R Water Temperature Sensor Note: This sensor is replaced as a set with the Discharge Temperature Sensor.

  • Page 42: Removal And Replacement

    CME1356R and CME1656R Removal and Replacement Transformer and Compressor Starting Components Single phase compressors use a start relay, start capacitor and run capacitor. All are located in a sheet metal box to the right of the AutoIQ Controller. The compressor contactor is also located in that box.

  • Page 43: Refrigerant

    6. Remove the gages and replace the stem and port caps. Return the schrader core to the liquid line valve. Make certain that all caps are on tightly. CME1356R and CME1656R Allen Wrench Torque Stem to 6-8 ft. lb. Low Side Access Valve...

  • Page 44: Liquid Charging

    CME1356R and CME1656R Liquid Charging Because R-404A is a near-azeotrope, only liquid refrigerant can be used to recharge the refrigeration system. To do that may take some special techniques: 1. Use an electronic scale to measure the charge. 2. Place a drum or cylinder of R-404A on the...

  • Page 45: Before Calling For Service

    If the machine shuts down again, call for service. To Shut the Machine Off: 1. Remove the left front panel. 2. Locate the AutoIQ Controller. CME1356R and CME1656R 3. Push and hold the Off button for 3 seconds or until March 2003 Page 45...
  • Page 46 SERVICE BULLETIN Subject: New Ice Sensors in CME1356, CME1656 and CME2006. New Ice Sensors, new Water Level Sensors and new Controllers in CME306 and CME456. Ice Sensors: Scotsman has begun production of ice machines equipped with a new style of ice sensor.
  • Page 47 Sensor Holder The new ice sensor’s have a photo-eye module that can be separated from the holder. Once separated, the lenses of the photo-eyes can easily be cleaned with a soft cloth or cotton swab. Ice machine cleaner may be used if needed. Like the other style of sensor, the photo-eye part can be placed in the reservoir when the ice machine is being cleaned with ice machine cleaner.

This manual is also suitable for:

Cme1656r

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