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Scotsman CME1000A User Manual

Scotsman cme1000a ice machine: user guide
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INTRODUCTION
This manual is intended as a reference for the
installation of a Scotsman ice maker models
CME855 and the CME1000.
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
UTILITY CONNECTION LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
STACKING TWO UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6
FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7
FOR THE INSTALLER: Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
INITIAL START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
WATER SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14
COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15
SERVICE SPECIFICATIONS: CME1000A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19
SERVICE DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21
REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23
REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 25
A Service Parts List and the Wiring
Diagrams are located in the center of this
manual, printed on yellow paper.

TABLE OF CONTENTS

CME855A & CME1000A
October, 1994
Page 1

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Summary of Contents for Scotsman CME1000A

  • Page 1: Table Of Contents

    SERVICE SPECIFICATIONS: CME855A SERVICE SPECIFICATIONS: CME1000A ......page 18 CLEANING ..........page 19 SERVICE DIAGNOSIS .

  • Page 2: Specifications

    The CME855 or CME1000 will fit Scotsman bin BH800 without needing a bin top. Other bins will require a bin top. Model Number Dimensions W"...

  • Page 3: Utility Connection Locations

    CME855A & CME1000A UTILITY CONNECTION LOCATIONS October, 1994 Page 3...

  • Page 4: For The Installer: Environmental Limitations

    They meet or exceed the standards of UL, NSF, and CUL. 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 part and/or other components not specifically approved by Scotsman.

  • Page 5: For The Installer: Machine & Bin Assembly

    Mount the bracket to the bottom of the ice machine with the plastic tube inserted up thru the ice machine base from below. Secure the bracket to the ice machine base using 3 thumbscrews from the hardware package.

  • Page 6: Stacking Two Units

    1. Remove the top panel from the lower unit. 2. Add a bead of food grade sealant (such as Scotsman part number 19-0529-01) to the top edges of the lower unit’s freezing compartment. 3. Lift the top unit onto the bottom machine (a mechanical lift is recommended).

  • Page 7: For The Plumber

    HAND SHUT OFF VALVE POSITION OF FILTER FLOOR DRAIN CME855A & CME1000A Drain Connections: Connections: All drains are gravity type and must have a minimum of 1/4 - inch fall per foot of horizontal run. The drains to be installed must conform with the local plumbing codes.

  • Page 8: For The Electrician: Electrical Connections

    CME855A & CME1000A FOR THE ELECTRICIAN: Electrical Connections See the NAMEPLATE for current requirements to determine wire size to be used for electrical hookup. The cuber requires a solid chassis to chassis earth ground wire. See Wiring Diagram. Be certain the cuber is connected to its own electrical circuit and individually fused.

  • Page 9: For The Installer: Final Check List

    CME855A & CME1000A FOR THE INSTALLER: Final Check List 1. Is the ice maker cabinet in a room where ambient temperatures are within the minimum and maximum temperatures specified? 2. Is there clearance at the left side of the cabinet...

  • Page 10: Initial Start Up

    CME855A & CME1000A INITIAL START UP Ice Maker: 1. Remove screws and front panel. 2. Remove two screws and the control box cover. 3. Remove the evaporator cover. 4. Locate two toggle switches on the front of the control box. Check that the Master ON/OFF switch and the Compressor ON-OFF switch are in the OFF position.
  • Page 11 With the ice maker in the harvest cycle, hold ice against the metal tube of the bin thermostat bracket. The ice machine will shut off only at the end of the harvest cycle. Remove the ice and within a few minutes the ice machine should restart.

  • Page 12: Adjustment Of The Timer & Switch Assembly

    CME855A & CME1000A ADJUSTMENT OF THE TIMER & SWITCH ASSEMBLY One complete revolution of the cam on the timer represents eight minutes. If left as factory set, the timed freeze cycle will be 5 minutes 15 seconds, and the harvest cycle will be 2 minutes 45 seconds.

  • Page 13: Refrigeration System Operation

    This causes the evaporators and the water going over them to loose heat. The refrigerant then flows into the suction line and back to the compressor. CME855A & CME1000A Suction Line Hot Gas Valve Compressor Expansion Valve...

  • Page 14: Water System Operation

    CME855A & CME1000A WATER SYSTEM OPERATION Evaporators WATER SYSTEM SCHEMATIC Water Manifold and Distributors Drain Reservoir Inlet Water Valve Water Pump A fixed charge of water is brought into the reservoir during the harvest cycle. A water pump, running continuously, forces the...

  • Page 15: Component Description

    The timer cam can be adjusted to vary the defrost time, as required. One complete rotation of the cam will take eight minutes. CME855A & CME1000A Hot Gas Solenoid Valve The hot gas solenoid valve opens only during the harvest cycle.
  • Page 16 CME855A & CME1000A COMPONENT DESCRIPTION Electric Water Inlet Valve The water inlet solenoid valve fills the reservoir assembly with water. Excess water overflows out the overflow standpipe located at the back of the reservoir. This action fills and rinses the reservoir during each harvest cycle.

  • Page 17: Service Specifications: Cme855A

    Cut in adjustable between 0 Bin Thermostat: CI= 38.5 F. to 43.5 CO= 33.5 F. to 38.5 Thermostatic Expansion Valve Not adjustable CME855A & CME1000A 70/50 14 - 15 minutes minutes 26 PSIG 195 PSIG 84 PSIG 140 PSIG F. and 24...

  • Page 18: Service Specifications: Cme1000A

    CME855A & CME1000A SERVICE SPECIFICATIONS: CME1000A When servicing a machine, it’s helpful to compare that unit’s operating characteristics to those of a new, clean, normally operating machine. What follows is that type of information: Numbers = Cabinet Air Temp/Water Temp.

  • Page 19: Cleaning

    CLEANING A Scotsman Ice System represents a sizable investment of time and money in any company’s business. In order to receive the best return for that investment, it MUST receive periodic maintenance. Maintenance and Cleaning should be scheduled at a minimum of twice per year.
  • Page 20 CME855A & CME1000A CLEANING SANITIZE WATER SYSTEM 1. Remove and discard all ice from the bin. 2. Remove front panel. 3. Drain the reservoir 4. Prepare 2 gallons of an approved sanitizer solution in accordance with the instructions on the...

  • Page 21: Service Diagnosis

    No ice, no water over evaporators 1. Water pump does not pump No ice, everything runs Low ice production CME855A & CME1000A POSSIBLE CAUSE 1. No electrical power 2. Circuit breaker tripped or fuse blown 3.
  • Page 22 CME855A & CME1000A SERVICE DIAGNOSIS SYMPTOM Low ice production No ice falling in bin, unit frozen up 1. Cube size control will not close Ice maker stuck in harvest cycle Ice is mal-formed Water overflows from reservoir into bin. POSSIBLE CAUSE 4.

  • Page 23: Removal And Replacement

    CME855A & CME1000A Inlet Water Solenoid Valve Assembly To remove the inlet water solenoid valve assembly: 1. Shut OFF water supply to machine.
  • Page 24 CME855A & CME1000A REMOVAL AND REPLACEMENT Disconnect electrical power before beginning. Water Pump 1. Remove front panel. 2. Remove evaporator cover. 3. Unplug water pump electrical connection. 4. Remove thumb screw retaining pump to cross brace. 5. Pull pump partially out of reservoir and remove discharge hose.

  • Page 25: Refrigeration Service

    TXV, the component must be protected by heat sink material. Recover, reclaim or recycle refrigerant . The method chosen is up to the service company. Any refrigerant placed into a Scotsman ice machine must meet ARI spec 700-88. Reclaim programs are available through most refrigerant wholesalers.

  • Page 26: Liquid Charging

    CME855A & CME1000A LIQUID CHARGING Instructions for R-404A In preparation for charging, the low side hose should have a sight glass, and/or a restrictor device (such as a "Charge Faster") installed in it for metering liquid into the low side of the system.

This manual is also suitable for:

Cme855a

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