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Service/Installation

Guide

SERIES 322

ICE CUBE MACHINE

PRINTED IN U.S.A

IMI CORNELIUS INC; 1995

Part No. 166240008

March 17, 1995

THIS DOCUMENT CONTAINS IMPORTANT INFORMATION

This Manual must be read and understood before installing or operating this equipment

Summary of Contents for 322 Series

Page 1: ...RIES 322 ICE CUBE MACHINE PRINTED IN U S A IMI CORNELIUS INC 1995 Part No 166240008 March 17 1995 THIS DOCUMENT CONTAINS IMPORTANT INFORMATION This Manual must be read and understood before installing...

Page 2: ...ST BIN SWITCHES 8 SANITIZING AND CLEANING PROCEDURE 9 WATER TREATMENT 10 WINTER STORAGE 10 CLEANING THE AIR COOLED CONDENSER COIL 10 OPERATING CHARACTERISTICS 11 REFRIGERATION AND WATER SYSTEM MODEL A...

Page 3: ...STEM VALVES 22 MOISTURE CONTAMINATION 22 COMPRESSOR CONTACTOR 23 COMPRESSOR STARTING COMPONENT CHECK OUT PROCEDURE 23 RELAY 23 CAPACITORS 24 COMPRESSOR 24 LEAK DETECTION 25 SYSTEM EVACUATION RECHARGI...

Page 4: ...erly Do not let anyone operate the machine without instructions Keep your machine in proper working condition Unauthorized modifications to the machine may impair function and or safety and affect the...

Page 5: ...2 166240008 3 17 95 THIS PAGE LEFT BLANK INTENTIONALLY...

Page 6: ...Refrigerant R 22 Electrical Freeze Cycle Amps Draw 8 0 Time Delay Fuse Retains amps 20 0 Minimum Circuit Ampacity amps 20 0 Power Supply Single Phase 115V 60 Hz Plumbing Connections Inlet Water Suppl...

Page 7: ...ed The air and water temperatures should never exceed 100 F or fall below 50 F Temperatures above 100 F will cut the ice making capacity below an economical level Temperatures below 50 F will cause a...

Page 8: ...This is very important for cleaning Connect either 3 8 or 1 2 copper tubing be tween the water inlet fitting of the ice machine and the water strainer For water cooled units Two water inlet connectio...

Page 9: ...onal separate drain line will be required for water cooled units from the outlet of the condenser coil to the drain Run all gravity drain lines with a good fall to the open drain All Plumbing Must Be...

Page 10: ...and electrical connections have been made start the unit and check for proper operation A cuber has three separate circuits the water circuit the refrigerant circuit and the electrical circuit 1 Star...

Page 11: ...st Bin Switches Turn on the ice machine and move the evaporator curtain s away from the evaporator s The ice machine should then shut off in approximately 10 seconds See detail A B Slowly let the evap...

Page 12: ...ld bleach into the water reservoir and circulate for 10 minutes to sanitize the circu lating water system including the evaporator pump distributor and all interconnecting vinyl tubing Depress dump va...

Page 13: ...ned to prevent them from freezing and possible rupture To blow out the waterline disconnect the water supply at the cabinet inlet and use air pressure to force the wa ter into the water reservoir pan...

Page 14: ...21 1579 214 15 5 1048 758 6 1 4 122 32 27 1593 214 16 5 1062 765 6 1 3 113 38 21 1768 228 18 8 1193 876 5 1 4 102 AVERAGE OPERATING CHARACTERISTICS WC322 IP Units FREEZE CYCLE HARVEST CYCLE AMBIENT T...

Page 15: ...ND WATER SYSTEMS MODELS AC322 WATER FLOAT VALVE WATER PUMP EVAPORATOR THERMOSTATIC EXPANSION VALVE HOT GAS SOLENOID VALVE S HEAT EXCHANGER HIGH SIDE SER VICE VALVE LOW SIDE SERVICE VALVE COMPRES SOR A...

Page 16: ...TER INLET FILTER DRIER PRESSURE SWITCH COMPRESSOR HIGH SIDE SERVICE VALVE LOW SIDE SERVICE VALVE HEAT EXCHANGER EVAPORATOR THERMOSTATIC EXPANSION VALVE HOT GAS SOLENOID VALVE WATER FLOAT VALVE WATER D...

Page 17: ...ng from factory S every 3rd cycle S every 5th cycle S every 7th cycle Remember the higher the mineral content in the water supply the more often it will be required to dump the wa ter and or clean the...

Page 18: ...Thinner Bridge turn the ice thickness pot adjustment screw CW one full turn Allow two cycles before determining if additional adjustments are required 2 Thicker Bridge turn the ice thickness pot adju...

Page 19: ...Plug Options Plug Adjustable Ice Thickness Pot Micro Processor Stacking Cable Plug Manual Harvest Switch Transformer To Stacked Unit if required Fan GR RD Error Condenser Sensor Suction Line Sensor R...

Page 20: ...D on 15 sec Fifteen seconds after water dump valve becomes active the water pump deactivates D14 Green LED on Compressor contactor active compressor running D15 Green LED on 15 sec Water dump valve be...

Page 21: ...er fan 3 Green D 11 hot gas valve 4 Green D 12 water pump 5 Green D 14 relay contractor 6 Green D 15 dump valve Failure of the LED s to cycle in this sequence will signal a defective circuit board YL...

Page 22: ...low the Cuber to restart operation Evaporator Switches Proximity Switches are half mounted to the water curtain and the other half mounted to the evaporator side rail Switch Notes 1 Manually holding t...

Page 23: ...he suction line temperature decreases the milli volt reading will increase 4 Sensor Shorted milli volt reading will cease to increase and will remain steady indicating a shorted sen sor 5 Sensor Open...

Page 24: ...arance around Cuber 4 Loose TXV bulb mount 5 Poor water flow over evaporator 6 Ventilation problems The expansion valves used on Cornelius I series ice equipment have special super heat settings and b...

Page 25: ...gauge and manifold set always close the high side stem valve first Following this procedure will allow the system to PULL the refrigerant vapor from your manifold set to reduce refrigerant loss When t...

Page 26: ...NG COMPONENT CHECK OUT PROCEDURE When compressors fail to start or run properly it is normally the external electrical supply or the compressor start components that are defective the overload protect...

Page 27: ...capacitor without plate defect the indicator should first move to zero 0 and then gradually in crease to infinity 2 If there is no movement of the ohm meter indicator an open circuit is indicated 3 I...

Page 28: ...test and or additives with UV lamp may be the best team for the most positive leak testing results 5 Never pressurize a system with oxygen or a mixture of refrigerant and air Either of these methods m...

Page 29: ...VALVE OPEN OPEN MANIFOLD SET OPEN VACUUM PUMP ELECTRONIC SCALE CHARGING CYLINDER CLOSED CLOSED LOW SIDE SERVICE VALVE HIGH SIDE SERVICE VALVE OPEN OPEN CLOSED IMPORTANT Service personnel are held resp...

Page 30: ...e condenser temperature reaches 100 F 38 C the fan starts and continues to run until the tem perature is reduced to 88 F 31 C NOTE There is no pressure control used to cycle the fan motor HIGH PRESSUR...

Page 31: ...ted to travel time truck charges overtime charges material cost accessing or removal of the ice machine normal prescribed maintenance cleaning adjustments and ice purchases are the responsibility of t...

Page 32: ...One Cornelius Place Anoka Minnesota 55303 6234 Telephone 800 238 3600 Facsimile 763 422 3246 Corporate Headquarters IMI CORNELIUS INC...

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