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Scotsman C2648 - SERVICE MANUAL 11-2010 Service Manual

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C2648 Service Manual
Introduction
The design of this modular remote cuber is the result of years of experience with remote ice machine
refrigeration systems. Standard features of this product include front accessible on-off switches,
always-visible indicator lights, mechanical assist ice harvest for extra efficiency, automatically adjusting
water purge and a control system that optimizes system operation.
The manual includes installation information, technical details, diagnostics and service parts.
Note the Caution and Warning symbols when they appear on the product or in this manual. They
indicate potential hazards. Keep this manual for future reference.
Installation Table of Contents
Installation: Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Electrical and Refrigeration Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Condenser and Ice Machine Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Remote Condenser Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Precharged Line Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Coupling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Plumbing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16
Use and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17
Switch Panel Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 18
Options and Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
Cleaning, Sanitation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
Prodigy Cuber System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 23
November 2010
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Summary of Contents for Scotsman C2648 - SERVICE MANUAL 11-2010

  • Page 1: Table Of Contents

    C2648 Service Manual Introduction The design of this modular remote cuber is the result of years of experience with remote ice machine refrigeration systems. Standard features of this product include front accessible on-off switches, always-visible indicator lights, mechanical assist ice harvest for extra efficiency, automatically adjusting water purge and a control system that optimizes system operation.

  • Page 2: Installation: Product Specifications

    C2648 Service Manual - Installation Installation: Product Specifications Location Limitations Remote condenser This ice system is made up of three parts, the ice Minimum Maximum making machine, or head; the remote condenser; Air temperature -20 and the interconnecting tubing. The ice making machine must be installed indoors, in a controlled environment.

  • Page 3: Model Number Description

    • Smart-Boardä Advanced feature control standards of UL and NSF. Scotsman assumes no liability of 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 4: Electrical And Refrigeration Requirements

    • Coil – not previously used with mineral oil system. Virgin coil preferred. • Correct size (internal volume) and capacity (BTUH). Contact Scotsman for data. • Includes a headmaster valve for discharge pressure control rated at 217 PSIG. • Fan motor on all the time or controlled to be on whenever the ice machine is operating.

  • Page 5: Condenser And Ice Machine Layouts

    C2648 Service Manual - Installation Condenser and Ice Machine Layouts 988.36 956.61 38.91 37.66 PRC241-32A 749.30 29.50 LIQUID LINE 1/2 IN. MALE CPLG. Ø .88 DISCHARGE LINE ELECTRICAL 5/8 IN. MALE CPLG. INLET 809.32 31.86 880.11 34.65 598.58 FLOW 23.57 469.37 18.48 272.20...

  • Page 6: Water

    Adjustments of purge due to local water conditions A triple head filter is recommended. Either the are not covered by warranty. Scotsman SSM3 taste and odor filter system, or the ADS-AP3 AquaPatrol system. Water flow is 2.5 GPM when filling the reservoir.

  • Page 7: Panel Removal

    Do not lift on the sump bottom. Scotsman BH1100, BH1300, BH1600: Position back of ice machine 2 3/8" from back of bin. Secure the ice machine to the bin with the hardware provided (two metal Z straps and four bolts).

  • Page 8: Remote Condenser Location

    Use the following for planning the placement of the Configurations that do NOT meet these condenser relative to the ice machine requirements must receive prior written authorization from Scotsman. Location Limits - condenser location must not exceed ANY of the following limits: Do NOT: •...

  • Page 9: For The Installer: Remote Condenser

    C2648 Service Manual - Installation For The Installer: Remote Condenser Locate the condenser as near as possible to the Roof Attachment interior location of the ice machine. Install and attach the remote condenser to the roof Note: The location of the condenser is relative to of the building, using the methods and practices of the ice machine is LIMITED by the specification on construction that conform to the local building...

  • Page 10: Precharged Line Routing

    C2648 Service Manual - Installation Precharged Line Routing Do not connect the precharged tubing until all 2. Have the roofing contractor cut a minimum hole routing and forming of the tubing is complete. See for the refrigerant lines of 2”. Check local codes, a the Coupling Instructions for final connections.

  • Page 11: Coupling Instructions

    C2648 Service Manual - Installation Coupling Instructions 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.

  • Page 12: Plumbing Requirements

    C2648 Service Manual - Installation Plumbing Requirements 1. Connect water supply to water inlet fittings. All models require connection to cold, potable 2. Connect drain tubing to drain fitting. water. A hand actuated valve within site of the machine is required. There is a single 3/8” flare nut 3.

  • Page 13: Electrical

    C2648 Service Manual - Installation Electrical The machine is not supplied with a power cord, one Electrical connections are made inside the junction must either be field installed or the machine box in the back panel of the ice machine. hard-wired.

  • Page 14: Final Check List

    C2648 Service Manual - Installation Final Check List: Is the unit located indoors in a controlled environment? Is the condenser located where it can receive adequate cooling air? Has the correct electrical power been supplied to the machine? Have all the water supply connections been made? Have all the drain connections been made? Has the remote condenser been properly...

  • Page 15: Initial Start Up

    C2648 Service Manual - Installation Initial Start Up 6. When the ice has frozen enough, the Ready for Remove front and left side panels. Check Harvest indicator light will be on steady. After machine for any packing or wires rubbing it’s been on steady for a few seconds Harvest moving parts.

  • Page 16: Adjustments

    C2648 Service Manual - Installation Adjustments 1/8 - 3/16" Bridge Thickness - For A Service Tech Only bridge 1. Push and hold Off till the machine stops. 2. Remove evaporator cover. 3. Remove left most curtain. 4. Use a box wrench and rotate the bridge thickness adjustment screw in 1/8 turn increments CW to increase bridge thickness.

  • Page 17: Use And Operation

    If the Clean light is on, the machine has determined that it may need to be cleaned. Contact an Note: There are three Curtain Switch lights, SW1, authorized Scotsman service agent and have the SW2 and the Period in the display code. A curtain machine cleaned, de-scaled and sanitized.

  • Page 18: Switch Panel Area

    C2648 Service Manual - Installation Switch Panel Area There is standard front access to two switches – on Adjustable ice level control (optional) and off. When this option is present there is an adjustment Status De-Scale knob and an additional indicator light to the right of the four standard indicator lights.

  • Page 19: Options And Other Information

    C2648 Service Manual - Installation Options and Other Information Smart-Board When this option is present there is an additional The cuber drops ice in large sections. That ice will display panel in the area below the main control break up into random parts as it falls into the bin, board.

  • Page 20: Cleaning, Sanitation And Maintenance

    Remove any remaining scale. Set aside. 5. Wait until the Purge Valve light goes out, then pour 24 ounces of Scotsman Clear 1 Scale 12. Remove evaporator covers, set aside. remover into the water reservoir.
  • Page 21 32. Push and release the green ON button to resume ice making.Remove and discard all ice. Clean Storage Bin Mix a solution of Scotsman Nickel Safe ice machine cleaner and wash all interior surfaces of the ice storage bin to remove any mineral scale build up.

  • Page 22: Remote Condenser And Other Maintenance

    C2648 Service Manual - Installation Remote condenser and other maintenance The condenser fins will need to be cleaned. Push and release the Off button. Wait until the machine stops. Note: Lock out the controller or the ice machine power supply to prevent an unauthorized fan motor restart.

  • Page 23: Prodigy Cuber System Information

    C2648 Service Manual - Installation Prodigy Cuber System Information To Manually Reset the machine. Push and release the Off button. Push and release the On button. To Shut the Machine Off: 1. Push and hold the Off button for 3 seconds or until the machine stops.
  • Page 24 C2648 Service Manual Service Table of Contents Overall System Types: ... . . page 2 Test Procedures - Loads ... . page 31 Controller Information.
  • Page 25 C2648 Service Manual Overall System Types: • Refrigeration: Mechanical remote cooled. Includes reciprocating hermetic compressor, head pressure control valve (headmaster), receiver and liquid line solenoid valve. • Water System: Inlet water solenoid valve fills reservoir once per cycle. Purge solenoid valve opens to discharge some reservoir water once per cycle.

  • Page 26: Controller Information

    C2648 Service Manual Controller Information Machine Indicator Lights • Power • Status • Water • Clean Code Display Main codes - automatically displayed F ..Freeze Cycle F flashes . . Freeze Cycle is Pending H .
  • Page 27 C2648 Service Manual Controller Information Component Indicator Lights • Condenser Fan / Aux (Aux = liquid line solenoid) • Water Pump • Purge Valve • Water Solenoid • Hot Gas • Compressor • Ready to Harvest • Sump Empty • Sump Full •...

  • Page 28: How It Works

    C2648 Service Manual How It Works Freeze Cycle. At start up the controller drains and refills the reservoir. The reservoir refills when the mid length water level sensor probe is uncovered and continues to fill until the top probe is in contact with water.

  • Page 29: Electrical Sequence - Remote Cooled

    C2648 Service Manual Electrical Sequence - Remote Cooled Power connected, unit previously switched Off. Control board does a self check. If the self check fails, the unit displays an E and no further action will occur. If the self check passes, the controller will display a 0, the curtain lights will be ON and the Power and Sump Empty lights will be ON.
  • Page 30 C2648 Service Manual The remote condenser fan motor is powered by the compressor contactor, so it will be operating during the harvest cycle. The operating water pump and purge valve will shut off when the purge level setting time has been reached, either the manual time or the automatic time.

  • Page 31: Electrical Component Details

    C2648 Service Manual Electrical Component Details Compressor • Operated by the compressor contactor. Contactor • Operated by the controller and the high pressure cut out switch. Line voltage coil. When energized the Compressor indicator light will be ON. Water Pumps •...
  • Page 32 C2648 Service Manual Electrical Component Details Controller • Senses ice thickness, water level, water temperature, discharge temperature. Controls compressor contactor, fan motor, water pump, inlet water valve, hot gas valve, purge valve, harvest assist solenoid. Indicates status and component operation. 12 volt. Transformer •...

  • Page 33: Electrical Component Details

    C2648 Service Manual Electrical Component Details Discharge temperature sensor. • Thermistor attached to the discharge line near the compressor. Reported temperature used by the controller to determine end-of-cycle-fan-off-delay time. If discharge temperature exceeds a preset maximum, controller will shut the machine off. Note: Controller will operate machine in a default mode with thermistors disconnected from the controller.

  • Page 34: Refrigeration

    C2648 Service Manual Refrigeration Refrigerant: R-404A Charge: 240 ounces Compressor: Copeland hermetic Compressor Amps: • Freeze - 13.2 to 12.9, declining to 9.6 at the end of the freeze cycle. 11.6 to 11.9 at five minutes. • Harvest - 12.7 to 11.8 Expansion valves: Non adjustable, internally equalized, one per evaporator.

  • Page 35: Refrigeration Schematic

    C2648 Service Manual Refrigeration Schematic Remote Condenser Suction Evaporator Headmaster Discharge Hot Gas Liquid Valve Valve Compressor Receiver Heat Liquid Line Exchange Valve Accumulator C2648R November 2010 Page 12...

  • Page 36: Water System

    C2648 Service Manual Water System Batch type. Water reservoir contains full water charge for each ice making cycle. Water valve: Solenoid type. Opens to fill reservoir when mid sensor probe no longer makes a circuit to the bottom probe. Closes when reservoir is full and top probe makes circuit to mid probe. Pumps: Unsealed pedestal type, twist-release mounting Water purge valve: Solenoid type.

  • Page 37: Control Operation

    C2648 Service Manual Control Operation Standard control: • Electronic controller operating from a 12 AC volt power supply. Will operate within a voltage range between 10 and 15.5. • User’s Indicator lights, four front visible: Power, Status, Water, De-scale/Sanitize. • Accessible On switch.

  • Page 38: Control Safeties

    C2648 Service Manual Control Safeties Max freeze time – 45 minutes When exceeded, the controller will attempt another freeze cycle. If the next cycle's freeze time is less than maximum, the control will continue normal ice making. If the next freeze cycle was too long, the control will again attempt another freeze cycle.

  • Page 39: Restarts

    C2648 Service Manual Restarts Power Interruption The controller will automatically restart the ice machine after adequate voltage has been restored. • H blinks on code display • Status indicator light blinks • Reservoir is drained and refilled Default harvest is initiated. The curtain switch does not have to open to terminate harvest, harvest will continue until the default harvest time expires.

  • Page 40: Control Button Use (From Standby)

    C2648 Service Manual Control Button Use (from standby) Set purge level, 1-5 (1 is minimum, 5 is maximum) or Automatic: • Hold off button in for 3 seconds. Release. • Press and release the On button to cycle through and select one of the five purge settings or to use the Automatic setting.

  • Page 41: Control Button Use - Continued

    C2448 Service Manual Control Button Use - continued Change De-Scale Notification Interval Like the others, this feature is accessible only from standby (Status Light Off). 1. Press and hold harvest button for 3 seconds. Starts the Time to Clean Adjustment State and displays the current time to clean setting. 2.

  • Page 42: Diagnostics - Remote Air Cooled

    C2648 Service Manual Diagnostics - Remote Air Cooled Problem Likely Cause Probable Solution Check breaker or fuse. Reset or No power to unit Power disconnected replace, restart and check No power to controller Transformer open Replace transformer Shut down on max. Water shut off Restore water supply water fill time...
  • Page 43 C2648 Service Manual Diagnostics - Remote Air Cooled Problem Likely Cause Probable Solution Check compressor temperature Compressor not operating Check compressor voltage (continued) Check compressor windings Add some refrigerant and restart Low refrigerant charge unit. If cycle time improves, look for leak.

  • Page 44: Diagnostics - Remote Air Cooled

    C2648 Service Manual Diagnostics - Remote Air Cooled Problem Likely Cause Probable Solution Curtain switch does not open Check switch with ohmmeter when curtain does Move machine to a warmer Machine in very cold ambient location Shut down on maximum Check hot gas valve, check Hot gas valve does not open harvest time (continued)

  • Page 45: Low Ice Making Capacity

    C2648 Service Manual Low Ice Making Capacity Dirty condenser Clean condenser Hot ambient Check condenser inlet temp. Water leak Check purge valve, check curtain Water inlet valve leaks through Check inlet valve Long freeze cycle Add refrigerant, if cycle time Low on refrigerant drops, check for leak Check evaporator superheat, if...

  • Page 46: Test Procedures - Sensors

    C2648 Service Manual Test Procedures - Sensors All electrical components in this ice machine can be diagnosed with a volt-ohmmeter. Curtain Switch: 1. Test using the controller’s indicator lights. Observe SW1 and SW2 and the Period in the display code. Open and close the curtain in question. When the curtain is opened, the SW light will be ON. When the curtain gets to within a half inch of closing (at the switch) the SW light will go OUT.

  • Page 47: Ice Thickness Sensor

    C2648 Service Manual Ice Thickness Sensor 1. Test using the controller’s indicator light. Observe the Ready To Harvest light. Shut the machine off. Use a wire to connect the metal part of the Ice Thickness sensor to the evaporator or simply remove the Ice Thickness Sensor and touch its metal surface to the metal control box wall.

  • Page 48: Water Level Sensor

    C2648 Service Manual Water Level Sensor 1. Test using the controller’s indicator lights (sump empty and sump full). Unit must be powered up and there must be water in the sump. Add some manually if needed. Locate water level sensor. Release from sump cover and slowly lift up until the mid-length probe is out of the water.

  • Page 49: Temperature Sensors

    C2648 Service Manual Temperature Sensors 1. Check controller. If the sensor calibration is completely out of range, the code display will read either 5 or 7. 2. Check with an ohmmeter. Open control box cover, unplug sensor from J6. Water temperature probe: Measure the temperature of the water.

  • Page 50: Test Procedures - Loads

    C2648 Service Manual Test Procedures - Loads Water Pumps 1. Test using the controller’s indicator lights. Check the indicator light during the freeze cycle. The light will be On for all but the 30 second anti-slush period, so observe the light for one minute. When it is On, check the water pumps, both should be operating.
  • Page 51 C2648 Service Manual Test Procedures - Loads Purge valve 1. Test using the controller’s indicator lights. Shut unit off by holding the Off button for 3 seconds. Wait four minutes. Push and release the On button, observe the Purge Valve indicator light. As the unit drains the reservoir, the purge valve will be powered.

  • Page 52: Test Procedures - Loads

    C2648 Service Manual Test Procedures - Loads Compressor contactor 1. Test using the controller’s indicator lights. When the unit is in ice making mode the compressor contactor will have power. Check the Compressor indicator light, when it is on the compressor contactor will have pulled in.

  • Page 53: Test Procedures - Loads

    C2648 Service Manual Test Procedures - Loads Pressure switch High pressure cut out. The high pressure cut out switch will open at a preset pressure, shutting off power to the compressor contactor. After the pressure has fallen to another preset level, the switch will re-close and the contactor coil will be energized.

  • Page 54: Test Procedures - Loads

    C2648 Service Manual Test Procedures - Loads Liquid Line Solenoid 1. Test using the controller’s indicator lights. Put the controller into test mode (depress Off for 3 seconds then depress Clean for 3 seconds). At the end of the test cycle, the liquid line valve will be powered and the Condenser Fan motor indicator light will be on.

  • Page 55: Test Procedures - Loads

    C2648 Service Manual Test Procedures - Loads Inlet Water Solenoid Valve 1. Test using the controller’s indicator lights. Shut unit off by holding the Off button for 3 seconds. Wait four minutes. Push and release the On button, observe the Water Solenoid indicator light. After the unit drains the reservoir, the inlet water valve will be powered to refill the reservoir.

  • Page 56: Test Procedures - Loads

    C2648 Service Manual Test Procedures - Loads Harvest assist solenoid 1. Test using the controller’s indicator lights. Push and release the Harvest button. The Hot Gas indicator light will be on. At the same time the Harvest Assist Solenoid will be powered. If the ice on the evaporator is thin, the solenoid will extend.

  • Page 57: Reservoir Removal

    C2448 Service Manual Reservoir Removal The reservoir may be removed from the cabinet if needed. 1. Drain water by holding in the Clean button repeatedly until no more water will drain. 2. Disconnect electrical power. 3. Twist counterclockwise and lift water pumps up and tip to one side. 4.

  • Page 58: Controller Differences

    C2648 Service Manual Controller Differences The controllers are programmed at the factory for the model they are installed on, they cannot be moved from one model to another due to differences in: • Water purge time per setting • Maximum harvest time •...

  • Page 59: Thermistor Values

    C2648 Service Manual Thermistor Values Deg. F . . Ohms Deg. F . . Ohms Deg. F. . Ohms Deg. F. . Ohms Deg. F. . Ohms 0..85325 52..18873 104.

  • Page 60: Performance Information

    C2648 Service Manual Performance Information Condenser Intake Air Temp., Degrees F Water Temp 9-11 10-12 11-13 12-14 16-18 Cycle Time 10-12 11-13 12-14 13-15 17-19 (minutes) 11-13 12-14 13-15 14-16 18-20 12-14 13-15 14-16 15-17 19-21 End of Freeze 28-30 26-28 27-29 27-30...

  • Page 61: Repair Procedures

    C2648 Service Manual Repair Procedures Inlet Water Solenoid Valve Disconnect electrical power Shut off the water supply. Remove front panel. Electrical Shock Hazard. Unplug wire from coil. Disconnect electrical power Disconnect water supply tube from the inlet of before beginning. the valve.

  • Page 62: Harvest Assist Solenoid

    C2648 Service Manual Harvest Assist Solenoid Remove front panel. Push and release Manual Harvest button Disconnect electrical supply Electrical Shock Hazard. Disconnect electrical power before beginning. Unplug wires from solenoid Remove screws holding solenoid coil to upper bracket. Note: Upper bracket stays in unit. Harvest Assist Solenoid Remove bottom two screws holding bracket and solenoid to cabinet (see circled area).

  • Page 63: Repair Procedures

    C2648 Service Manual Repair Procedures Ice thickness sensor Push and release the Off switch. Remove front and top panels. Push and release the Harvest switch Remove the evaporator cover. Disconnect electrical power. Electrical Shock Hazard. Disconnect electrical power before beginning. Open the control box.

  • Page 64: Repair Procedures

    C2648 Service Manual Repair Procedures Contactor Disconnect electrical power. Electrical Shock Hazard. Disconnect electrical power before beginning. Remove front panel. Open control box cover. Remove right side of control box. Remove metal barrier from control box Remove mounting screws holding contactor to control box. Exchange wires from old controller to new.

  • Page 65: Repair Procedures

    C2648 Service Manual Repair Procedures Controller Disconnect electrical power. Electrical Shock Hazard. Disconnect electrical power before beginning. Remove front panel. Open control box door. Unplug all wires from controller. Remove screws holding controller to door Push controller snaps down and pull controller from mounting bracket.

  • Page 66: Repair Procedures

    C2648 Service Manual Repair Procedures Curtain Push and hold the Off button to shut the machine off. Remove front panel. Remove evaporator cover. Push inside tab in to release front curtain pin from holder. Pull curtain from machine. Reverse to reassemble. Push and release the ON button to restart the machine.

  • Page 67: Repair Procedures

    C2648 Service Manual Repair Procedures Purge valve Push and hold the Off button to shut the machine off. Disconnect electrical power. Electrical Shock Hazard. Remove front panel. Disconnect electrical power before beginning. Unplug wires from valve coil. Note: The coil can be removed from the valve body by rotating it 1/8 turn CW. After removal of the coil the spring and plunger can be taken out.

  • Page 68: Repair Procedures

    C2648 Service Manual Repair Procedures Water pumps There are two water pumps. The front pump forces water to the two left evaporators and the back pump waters the right evaporator and drains the reservoir. Electrical Shock Hazard. Disconnect electrical power before beginning.

  • Page 69: Refrigeration Removal And Replacement Procedures

    C2648 Service Manual Refrigeration Removal and Replacement Procedures Evaporator Remove front panel. Remove evaporator cover. Remove right side panel. Remove top panel. If the machine was in operation, push and release the Harvest button to warm up the evaporator. Disconnect electrical power. Electrical Shock Hazard.
  • Page 70 C2648 Service Manual Refrigeration Removal and Replacement Procedures 17 Gain access to the right side of the unit. Remove mounting screws holding the evaporator to the freezing compartment wall. Note: fastener size is 5/16” hex. 18 Remove the evaporator from the ice machine. 19 Attach new evaporator to freezing compartment wall.

  • Page 71: Refrigeration Removal And Replacement Procedures

    C2648 Service Manual Refrigeration Removal and Replacement Procedures Compressor Remove front panel. If the machine was in operation, push and release the Harvest button to shut it down. Wait until the harvest cycle has ended so the evaporator has no ice on it. Open the replacement compressor box.

  • Page 72: Refrigeration Removal And Replacement Procedures

    C2648 Service Manual Refrigeration Removal and Replacement Procedures 16 Open nitrogen bottle and braze compressor suction, discharge and process joints together. Braze new drier into system. 17 Shut off nitrogen, shut access valves. 18 Evacuate to at least 300 microns. 19 Weigh in the nameplate charge.

  • Page 73: Refrigeration Removal And Replacement Procedures

    C2648 Service Manual Refrigeration Removal and Replacement Procedures Thermostatic Expansion Valve Remove front panel. If the machine was in operation, push and release the Harvest button to shut it down. Wait until the harvest cycle has ended so the evaporator has no ice on it. Disconnect electrical power.

  • Page 74: Vari-Smart™ Adjustable Ice Level Option

    C2648 Service Manual Vari-Smart™ Adjustable ice level option The adjustable ice level control is an optional add-on system consisting of an control board, label and sensor. The control board fits above the standard control and connects to it using connector J4. The sensor mounts to the base of the ice machine through a hole in the base.

  • Page 75: Adjustable Ice Level System Information And Diagnosis

    C2648 Service Manual Adjustable Ice Level System Information and Diagnosis The ultrasonic sensor in the base of the ice machine is located to take advantage of the natural slope of the ice as it builds up in the bin. The numbers of the settings are from the sensor to the top of the ice pile directly under the sensor.
  • Page 76 With the standard controller, and both the KSL and the KVS Smart-Board abilities include: • Ethernet connection • USB connection to be used with Scotsman's Prodigy TechTool software • Data Logging • Data Display The Smart-Board mounts to the control box door just below the main controller.
  • Page 77 C2648 Service Manual Select Scroll Up Escape Button Button Button ™ SmartBoard Advanced Feature Control ENTER 02-4293-01 Rev A. See Instructions for Available Features Scroll Down Display Area Enter Button Button Connection Scroll Up: Changes the display to a menu item higher on the menu list or goes up one number on a setting Scroll Down: Changes the display to a menu item lower on the menu list or goes down one number on a setting...

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