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INTRODUCTION
This manual is intended as a reference for the
installation and service of a Scotsman ice maker
model CME865R or CME1002R.
RCE1001 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOR THE INSTALLER: Environmental Limitations . . . . . . . . . . . . . . . . . . .
FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOR THE INSTALLER: Final Check List . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS: CME865R . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS: CME1002R . . . . . . . . . . . . . . . . . . . . . . .
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FREEZING CYCLE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HARVEST CYCLE - HOT GAS BYPASS . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE DIAGNOSIS: Ice Level Control Circuit . . . . . . . . . . . . . . . . . . . .
REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.
This manual was printed on recycled paper.
This manual contains information on maintenance
and service. Keep it for future reference.
Table of Contents
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September, 1994
CME865R & CME1002R
This model is a remote condenser cuber, 30" wide
and should be connected to a Scotsman remote
condenser.
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Note this symbol where it appears.
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It marks a potential hazard.
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Table of Contents
Related Manuals for Scotsman CME1002R
Summary of Contents for Scotsman CME1002R
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Page 1: Table Of Contents
SERVICE SPECIFICATIONS: CME865R ......SERVICE SPECIFICATIONS: CME1002R ..... . . -
Page 2: Pre-Installation Information
A CME865 or CME1002 may only be stacked onto models CME865, CME1002, MCM860, MCM1062 or CMS1002. These models will fit any 30" wide Scotsman bin, such as the BH550 or HTB555, without a bin top. Other bins require a bin top. -
Page 3: Ice Machine Specifications
Before beginning installation, be sure that all of the components necessary for complete assembly of the ice system are available, and are the correct components with regard to model, voltage, and finish. CME865R & CME1002R September, 1994 Page 3... -
Page 4: Rce1001 Specifications
CME865R & CME1002R ERC301 SPECIFICATIONS ERC Dimensions " " " December 1995 Page 4 " " "... -
Page 5: For The Installer: Environmental Limitations
They meet or exceed the standards of UL, NSF, and CSA. 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 6: For The Installer: Machine & Bin Assembly
4. The remote condenser. Additionally, there will be interconnecting wires between the ice maker and the condenser. The Scotsman remote condenser is powered from the ice maker. The condenser must be located above the ice maker, usually on the roof. -
Page 7: For The Plumber
OF THE BIN VENT FOR BIN DRAIN FLOOR DRAIN CME865R & CME1002R The drains to be installed must conform with the local plumbing codes. Use only 3/4" rigid tubing. The ice machine’s drain must be separate from the bin’s drain. Both use 3/4" FPT fittings. Insulation of the bin drain is recommended. -
Page 8: For The Installer: Remote Condenser
CME865R & CME1002R FOR THE INSTALLER: Remote Condenser Locate the condenser as near as possible to the interior location of the ice maker. Location of the condenser is limited by the specific length of pre-charged refrigerant tubing supplied for the application. The pre-charged tubing connects the ice maker to the remote condenser. -
Page 9: For The Installer: Coupling Instructions
“discharge line”. The other end of the discharge line goes to the ice maker fitting marked “discharge line”. CME865R & CME1002R 3. Begin tightening the couplings together by hand, then using two wrenches (it is important that ONLY the nut on the precharged lines be turned,... -
Page 10: For The Electrician: Electrical Connections
CME865R & CME1002R 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 11: For The Installer: Final Check List
12. Has the Field Quality Audit form been properly filled out? Check for correct model and serial numbers from Serial nameplate, then mail the completed form to the SCOTSMAN factory. 13. Has the owner been given the name and telephone number of the authorized SCOTSMAN... -
Page 12: Initial Start Up
CME865R & CME1002R INITIAL START UP Remote Condenser: 1. Check that all connections have been made. Ice Maker: 1. Remove front panel by pulling out to unsnap. 2. Remove two screws and the control box cover. 3. Remove the evaporator cover. - Page 13 3. Hold a flat object about the size of this service manual over the ice level sensor socket. 4. The ice machine should turn off at the end of the harvest cycle. 5. Slowly lower the flat object straight down.
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Page 14: Adjustments
“harvest” cycle, if there is ice in the bin higher than the position the ice level control is set for, the ice machine will turn OFF at the end of the harvest cycle. If no ice in the bin, test again as described under, “To Test The Ice Level Setting”. -
Page 15: Component Description
One complete rotation of the cam will take eight minutes. Harvest is preset at 2 and a quarter minutes. CME865R & CME1002R Hot Gas Solenoid Valve The hot gas solenoid valve opens only during the harvest cycle. When it opens, it diverts the hot... - Page 16 Ice Level Control This electronic control uses sound waves to measure the distance between the bottom of the ice machine and the top of the ice in the bin. It is designed to control the machines ice production to maintain that distance.
- Page 17 Gravity flow returns the unfrozen excess portion of water to the reservoir for recirculation. CME865R & CME1002R Reservoir The reservoir, located below the evaporators, stores the inlet water charge, and collects the water that flows over the evaporator plates.
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Page 18: Service Specifications: Cme865R
CME865R & CME1002R SERVICE SPECIFICATIONS: CME865R The following numbers may be used as a guideline. There will be some variation from unit to unit. Numbers = (Condenser/Cabinet/Water). Typical Cycle Time Harvest Time (2 min. standard) 3 Typical Freeze Cycle Low Side... -
Page 19: Service Specifications: Cme1002R
SERVICE SPECIFICATIONS: CME1002R The following numbers may be used as a guideline. There will be some variation from unit to unit. Numbers = (Condenser/Cabinet/Water). Typical Cycle Time Harvest Time (2 min. standard) 3 Typical Freeze Cycle Low Side Pressure (end of cycle) -
Page 20: Cleaning & Sanitizing
CME865R & CME1002R CLEANING & SANITIZING 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 21: Cleaning
10. Replace the evaporator cover. Replace the front panel. 11. Move the master switch to ON. CME865R & CME1002R SCOTSMAN REMOTE CONDENSER 1. Disconnect electrical power at the ice maker. 2. Wipe off any surface dust from the intake side of the condenser. -
Page 22: Freezing Cycle Operation
CME865R & CME1002R FREEZING CYCLE OPERATION Water from the sump assembly is pumped to the water distributor system at the top of each evaporator plate. From the water distributor the water cascades by gravity over all cells of the plate and to the sump assembly below. -
Page 23: Harvest Cycle - Hot Gas Bypass
OPEN and the water inlet solenoid valve is OPEN. REFRIGERATION SYSTEM SCHEMATIC CME865R & CME1002R The finished ice cubes are released from the sides of each evaporator plate by the warming effect of the hot gas condensing in each evaporator plate and the water cascading over the ice cubes. -
Page 24: Service Diagnosis
CME865R & CME1002R SERVICE DIAGNOSIS SYMPTOM No ice, machine does not run No ice, compressor does not run, rest of ice machine does. No ice, no water over evaporators 1. Water pump does not pump No ice, everything runs Low ice production POSSIBLE CAUSE 1. - Page 25 No ice falling in bin, unit frozen up 1. Cube size control will not close 1. Check temp. of suction line, Ice maker stuck in harvest cycle Ice is mal-formed Water overflows from reservoir into bin. CME865R & CME1002R POSSIBLE CAUSE 3. High head pressure, a result of a dirty condenser 4. Hot gas valve leaks thru 5.
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Page 26: Service Diagnosis: Ice Level Control Circuit
CME865R & CME1002R SERVICE DIAGNOSIS: Ice Level Control Circuit CONDITION Ice Machine does not run, it has power to it, the high pressure control is closed, the on/off switch is set to ON (the compressor will not operate until the liquid line... -
Page 27: Removal And Replacement
4. Pull transducer down until plug connection is accessible. TRANSDUCER LOCATION TRANSDUCER CME865R & CME1002R 5. Unplug transducer and remove from the machine. 6. Reverse steps 1-5 to reassemble. REMOVAL OF TRANSDUCER September, 1994 Page 27... - Page 28 CME865R & CME1002R REMOVAL AND REPLACEMENT Disconnect electrical power before beginning. Water Distributor Tubes And Manifold Tubes To remove the water distributor tube and manifold tube: 1. Pull out to unsnap catches and remove the front panel. 2. Remove the evaporator cover.
- Page 29 6. Remove the pump from the ice maker. 7. Reverse to reassemble. 8. Replace all panels. 9. Reconnect electrical power. CME865R & CME1002R Inlet Water Solenoid Valve Assembly To remove the inlet water solenoid valve assembly: 1. Shut OFF water supply to machine.
- Page 30 CME865R & CME1002R REMOVAL AND REPLACEMENT Head Pressure Control Valve 1. Remove side service panel, and top panel if possible. 2. Discharge and recover refrigerant from the system. 3. Break off the process tube on the dome of the head pressure control valve.
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Page 31: 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 32: Liquid Charging
CME865R & CME1002R 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.