Everest EGC 150 MA Technical Manual

Everest EGC 150 MA Technical Manual

Ice cube machines
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TECHNICAL MANUAL
ICE CUBE MACHINES
SINCE 1966
EGC 50 A
EGC 75 A
EGC 100 A / 150 A
EGC 150 MA
EGC 150 MA / 140
EGC 150 MA / 250
EGC 300 MA / 250
VALID FOR UNITS PRODUCED SINCE SEPTEMBER/2015

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Summarization of Contents

OPERATING PRINCIPLES
1 - CLEANING CYCLE
Details the process of cleaning the ice machine's trough and evaporator.
2 - ICE FORMATION CYCLE
Explains how ice cubes are formed around the evaporator thimbles.
3 - ICE DETACHMENT CYCLE
Describes the process of releasing formed ice cubes from the evaporator.
4 - OPERATION OF THE TANK THERMOSTAT
Explains the function of the tank thermostat in managing ice levels.
ELECTRICAL DIAGRAMS
ELETRICAL DIAGRAM EGC-50A, EGC-75A, EGC-100A - 127V
Wiring diagram for specific models at 127V.
ELETRICAL DIAGRAM EGC-50A, EGC-75A, EGC-100A - 220V
Wiring diagram for specific models at 220V.
ELETRICAL DIAGRAM EGC-150A, EGC-150MA - 127V
Wiring diagram for specific models at 127V.
ELECTRICAL DIAGRAM EGC-150A, EGC-150MA - 220V
Wiring diagram for specific models at 220V.
ELECTRICAL DIAGRAM FOR TECUMSEH COMPRESSORS
Wiring diagram specific to Tecumseh compressors.
ELECTRICAL DIAGRAM FOR EMBRACO COMPRESSORS
Wiring diagram specific to Embraco compressors.
EQUIPMENT FAILURE MANAGEMENT
1 - SYMPTOM WATER SHORTAGE OR LOW WATER FLOW RATE
Addresses issues of insufficient water supply or low flow rate and their causes.
2- SYMPTOM PLASTIC TROUGH CANNOT BE LOWERED
Details problems with the plastic trough failing to lower and potential causes.
3 - SYMPTOM: TROUGH (35) IS LOWERED BUT DOES NOT REACH THE LOWEST POINT
Explains issues when the trough lowers but doesn't reach the minimum position.
4 - SYMPTOM: BY-PASS CYCLE OVER 2 MINUTES
Covers troubleshooting for bypass cycles exceeding the normal duration.
5 - SYMPTOM: TROUGH (35) IS SUSPENDED, BUT DOES NOT REACH THE LOWEST POINT
Addresses situations where the trough is suspended but fails to reach the lowest point.
6-SYMPTOM: TROUGH (35) RISES, BUT DOES NOT ACHIEVE THE HIGHEST POINT
Discusses problems with the trough not reaching its maximum height.
7 - SYMPTOM: THROUGHOUT THE WATER INLET, THE PLASTIC TROUGH (35) DOES NOT STAY AT THE HIGHEST POINT
Explains why the trough may not remain at the highest position during water inlet.
DEFECT ANALYSIS
2.1 - MACHINE DOES NOT WORK
Covers general troubleshooting for the machine not operating at all.
2.2 - WATER SHORTAGE OR LOW WATER FLOW
Details issues related to insufficient water or low flow rates.
2.3 - WATER TROUGH GOES UP AND DOWN CONTINUOUSLY
Addresses the problem of the water trough moving up and down constantly.
2.4 - CONTINUOUS ENTRANCE OF WATER IN THE TROUGH
Explains issues with water continuously entering the trough.
2.5 - LOW ICE PRODUCTION
Discusses causes and solutions for reduced ice production.
2.6 - MACHINE WORKING BUT NOT PRODUCING
Covers scenarios where the machine operates but does not produce ice.
2.7 - CUBES DO NOT DETACH FROM THE EVAPORATOR
Explains why ice cubes might not detach from the evaporator.
ADJUSTMENT AND REPLACEMENT OF MAIN COMPONENTS
3.1 - DISPLACEMENT SYSTEM AND TROUGH
Details adjustment and maintenance of the trough's displacement system.
3.2 - ADJUSTMENT OF WATER LEVEL AND ICE CUBE HEIGHT
Explains how to adjust water level for desired ice cube size.
3.3 - FINNED AXIS
Provides instructions for replacing or maintaining the finned axis.
3.4 - CIRCUIT BOARD
Overview of the circuit board and its functions.
3.4.1 - CIRCUIT BOARD DOES NOT CONTROL ANY COMPONENT
Troubleshoots issues where the circuit board fails to control components.
3.4.1 A - COMPONENTS THAT SEND INFORMATION TO THE BOARD
Describes components that provide input signals to the circuit board.
3.4.1 B - COMPONENTS CONTROLLED BY THE CIRCUITBOARD
Details components that are operated by the circuit board.
3.5 - INOPERATIVE WATER VALVE
Troubleshooting for a non-functional water valve.
3.6 - GAS LOAD / REPLACEMENT OF THE COOLING COMPRESSOR
Guides on gas charging and compressor replacement procedures.

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