3
Table of Contents
Safe Servicing Practices - All Appliances........................2
Installation
Leveling ..................................................................................4
Adjusting Door ........................................................................4
Checking Door Alignment ....................................................4
Adjusting Door Alignment ....................................................5
General Instructions
Keypad Options .......................................................................6
ON/OFF .................................................................................6
Showroom Mode ..................................................................6
Service Mode .......................................................................7
Blackout / Sabbath Mode......................................................7
Clean Cycle ...........................................................................7
Force Harvest .......................................................................7
Forced Defrost ......................................................................7
Ice Thickness Adjust.............................................................7
Temporary Shutdown / Office Mode .....................................7
Relay Status .........................................................................7
Service Information
Service Menu ..........................................................................8
Error Codes .............................................................................8
Board Components .................................................................9
Electronic Control Quick Guide .............................................10
Keypad Options .....................................................................11
ON/OFF ...............................................................................11
Viewing Actual Temperature ...............................................11
Changing From Fahrenheit to Celsius .................................11
Showroom Mode ................................................................11
Service Mode .....................................................................11
Blackout / Sabbath Mode....................................................12
Model Number Change .......................................................12
Service Menu ........................................................................12
Error Codes ...........................................................................13
Electronic Control Quick Guide .............................................13
Thermister Types ..................................................................14
Refrigeration System Diagnosis Guide .................................14
Filter Drier Installation ..........................................................15
Evacuating and Recharging ..................................................15
Equipment Needed .............................................................16
Installing Equipment Needed ..............................................16
Evacuating System .............................................................16
Charging the System ............................................................17
Preparing the Cyclinder ......................................................17
Final Leak Test ......................................................................17
Evacuating and Recharging Connections ..............................18
Verify Refrigerant Type in System .........................................19
R-134a Refrigeration Systems ..............................................19
Miscibility of R-134a and Ester Oil ........................................19
Water in the Refrigeration System ........................................20
Vacuum Pump Maintenance .................................................20
Refrigerant Leaks ..................................................................21
Leak Detection ....................................................................21
HFC-124a, CFC-12 Pressure Temperature Chart ...................22
Inhalation Toxicity .................................................................23
Cardiac Sensitization .............................................................23
Table of contents
Spills and leaks .....................................................................23
Skin and Eye Contact ............................................................23
Combustibility of HFC-134a ..................................................24
Leak Testing .......................................................................24
Bulk Delivery and Storage ..................................................24
Filling and Charging Operations..........................................24
Refrigerant Recovery Systems ..........................................24
Thermal Decomposition ........................................................24
Ice Cube Thickness Adjustment ............................................25
Interval - As Required .........................................................25
Operating Environments/Climate Control Requirements .......26
Model EI151M55GS ..............................................................26
Defrost Information ............................................................26
Compressor / Coil Specifications........................................26
Operation ............................................................................27
Thermister Outage ..............................................................28
Service ..................................................................................28
Troubleshooting ....................................................................28
Display shows ER or P1 .....................................................28
No ice .................................................................................28
Too much ice ......................................................................28
Too little ice ........................................................................29
Ice not sized to customer satisfaction ................................29
Noise ..................................................................................29
No water in trough..............................................................29
Ice does not release from evaporator .................................29
Poor ice quality...................................................................29
Water in ice bin ..................................................................29
Display showing something other than “ice” .....................29
Display showing random snaking of characters .................29
Display not illuminating but unit operating .........................29
Unit is not operating - no cooling - no fans ........................29
Wiring Diagram .....................................................................30
Ice Production Rates ............................................................30
Prepare Plumbing .................................................................31
Gravity Drain ......................................................................31
Factory Installed Drain Pump .............................................31
Locally Installed Drain Pump ..............................................33
U-CLR Drain Kit (Available for purchase) ...........................33
Self-Cleaning Cycle Instructions ...........................................36
Interior Storage Bin Cleaning ................................................36
Parts Information
EI151M55GS Parts Section ..................................................37
Customer Call Guide
Concern / Response ..............................................................45
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