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INTRODUCTION
To the owner or user: This service manual is
intended to provide you and the maintenance or
service technician with the information needed to
install, start up, clean, maintain and service this
ice system.
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Harvest Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Lists and Wiring Diagrams are located
in the center of this manual, printed on
yellow paper.
Table of Contents
September 1993
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CMS1202
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Table of Contents
Related Manuals for Scotsman CMS1202
Summary of Contents for Scotsman CMS1202
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Page 1: Table Of Contents
Removal and Replacement ......Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper. Table of Contents September 1993 Page 1 CMS1202... -
Page 2: Specifications
CMS1202 FOR THE INSTALLER The CMS1202 will fit Scotsman’s ice storage bin (48" wide) model BH900, and with adaptors, the following Scotsman ice storage bins: BH1000 (use KBT21) BH1360. When stacking onto another CMS1202 or a CMS1402, use kit KSCMS48. -
Page 3: Location & Assembly
Use bolts and straps found on the back of the icemaker to secure the ice machine to the bin. When alignment and leveling are completed, tighten the bolts to secure the mounting straps. -
Page 4: Stacking
CMS1202 FOR THE INSTALLER: Location & Assembly Stacking Instructions When stacking two units, remove the top panel and the evaporator cover from the lower icemaker. (The top removed from the lower icemaker will no longer have any function.) Carefully lift the uncrated top unit onto the bottom one and align the two cabinets. -
Page 5: For The Electrician
All external wiring should conform to the national, state and local electrical code requirements. Usually an electrical permit and services of a licensed electrician will be required. HAND DISCONNECT SWITCH JUNCTION ELECTRICAL CONNECTIONS, AIR COOLED September 1993 Page 5 CMS1202 GROUND SCREW DETAIL OF JUNCTION BOX... -
Page 6: For The Plumber
Water Limitations: An ice machine is a food manufacturing plant, it takes in a raw material, water, and turns it inot a food product, ice. The purity of the water is very important in obtaining pure ice and in maximizing product life. -
Page 7: Final Check List
11. Has the Manufacturers Registration form been properly filled out? Check for correct model and serial numbers from Serial nameplate, then mail the completed card to the SCOTSMAN factory. 12. Has the owner/user been given the Service Manual and instructed how to operate and maintain the icemaker? 13. -
Page 8: Initial Start Up
CMS1202 INITIAL START UP 1. Remove the front panels by removing screws at FRONT VIEW OF TIMER the base and pulling out. 2. Remove two screws and the control box cover. 3. Check that the two switches on the control box,... - Page 9 Customer Response form. Explain to the owner/user the operation and maintenance requirements of the ice machine. Inform the owner of the name and telephone number of the local SCOTSMAN Distributor or service agency. September 1993 Page 9 CMS1202 CLOSE UP...
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Page 10: Freezing Cycle Operation
CMS1202 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 WATER DISTRIBUTION and to the sump assembly below. -
Page 11: Harvest Cycle Operation
CMS1202 HARVEST CYCLE - HOT GAS BYPASS When the timer switches the icemaker into the harvest cycle, the finish relay is de-energized, and WATER the hot gas valve and inlet water valve OPEN. DISTRIBUTION Then high pressure, high temperature gas... -
Page 12: Component Description
CMS1202 COMPONENT DESCRIPTION Cube Size Control This reverse acting thermostat controls the length of the freezing cycle. It is sensing the temperature of the suction line. When the suction line gets cold enough, the cube size control closes (on temperature fall) and starts the timer. A change in... - Page 13 Bin 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 machine’s ice production to maintain that distance.
- Page 14 CMS1202 COMPONENT DESCRIPTION Water Inlet Solenoid Valve The water inlet solenoid valve fills the sump assembly with water. Extra water overflows out the overflow standpipe of the sump. This action fills and rinses the sump during each harvest cycle. The flow rate is 1 g.p.m.
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Page 15: 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 16 REACH OF CHILDREN. CLEANING CONDENSER To Remove Scale: 1. Mix a cleaning solution of 4 ounces of Scotsman Ice Machine Cleaner to 4 pints of hot (95 F.) water. 2. Using rubber gloves, dip a nylon scouring pad into the cleaning solution, and scrub the scale off of the liner.
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Page 17: Adjustments
2. Rotate the adjusting knob one-eighth of a turn COUNTER Clockwise. 3. Observe size of ice cubes in next ice cube harvest and, if needed, adjust again until correct ice cube size is achieved. September 1993 Page 17 CMS1202... - Page 18 CMS1202 ADJUSTMENTS Adjustment Of The Timer & Switch Assembly Electrcial power present in the control box can cause personal injury. Disconnect power before begining to adjust timer. One complete revolution of the cam on the timer takes eight minutes. The normal setting is two and one-quarter minutes, as set at the factory.
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Page 19: System Specifications
Maximum Full Height: ....8" from the base of the ice machine. Partial Fill Setting: ..... . 21" - 22" from the base of the ice machine. -
Page 20: Service Diagnosis
CMS1202 SERVICE DIAGNOSIS: Electrical and/or Adjustments SYMPTOM Nothing operates Makes thick ice/freezes up Runs, makes no ice Long freeze cycle Cubes too small Cubes too large POSSIBLE CAUSE Bin level control holding machine off No Power High pressure control open High temperature cut out open P. - Page 21 Control set on partial Ice level control failiure Timer stuck; does not turn September 1993 Page 21 CMS1202 PROBABLE FIX Check and adjust harvest time Check supply, filter, strainer and valve Check for power to the coil, check for not opening, replace...
- Page 22 CMS1202 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 Machine runs, makes ice, switches on and off, but ice level cannot be controlled.
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Page 23: Removal And Replacement
Remove the cube size control. To replace the cube size control, reverse the removal procedure. September 1993 Page 23 CMS1202 Electrical Shock Hazard. Electrical shock can cause personal injury. Disconnect power... - Page 24 CMS1202 REMOVAL AND REPLACEMENT Electrical Shock Hazard. Electrical shock can cause personal injury. Disconnect power before begining to service components Water Pump 1. Remove front panel. 2. Unplug water pump electrical connection. 3. Drain water reservoir. 4. Use corbin clamp pliers to loosen and slide corbin clamps on hoses away from pump.