True Manufacturing Company Swing Glass Door Merchandiser Refrigerator GDM-26 user manual

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ELSTAT TRAINING BOOKLET
GDM SERIES COOLER EQUIPPED WITH EMS (ELSTAT) CONTROL
GDM-26

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TABLE OF CONTENTS · ELSTAT SEQUENCE OF OPERATION · ELSTAT COMPONENTS · FRONT VIEW OF ELSTAT · REAR VIEW OF CONTROLLER · FREQUENTLY ASKED QUESTIONS (FAQ) · NORMAL OPERATING CODES · FAULT CODES/ TROUBLESHOOTING · TROUBLESHOOTING GUIDE · PARAMETERS 2

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ELSTAT SEQUENCE OF OPERATION Once the cabinet is plugged in, the ELSTAT control will flash "888" and then go through a parameter check. Once completed, the control will do a "soft start". Lights come on first, approximately 30 seconds later the compressor will start. Approximately 30 seconds from the compressor start up, the evap motor will start. The control will display "Use". The control will then cycle the compressor on and off at the predetermined temp (Model specific). The whole tim

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5 5 4 4 3 3 2 2 1 1 Controller Transformer Probe Evaporator Fan Evaporator Fan Evaporator Coil Evaporator Coil Airflow Airflow Elstat Elstat Probe Location 1 Probe Location 2 GDM-10 through GDM-37 GDM-45 to GDM-72 Probe is in return air mounted by the evaporator fan motor. Probe is in the discharge air stream Off of the Evaporator Coil 4 9 9 8 8 7 7 6 6

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Perishable Mode Light Waterdrops Snowflake Up/Down Key 5

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1. Line In 2. Lights 3. Not Used 4. Appliance Sensor 5. Compressor 6. Fan (s) 7. 12 Vac 8. Not Used 9. Not Used 6

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FREQUENTLY ASKED QUESTIONS If the motion sensor is set off during the "Stand by" mode the control will automatically turn the lights on, however it will stay in stand by mode. The control can be set into perishable mode. This would shut down the "stand by" mode. The lights will still cycle (like stand by mode) when cabinet doesn't see activity. Elstat controller does not have this capability. Lights will always turn off in "stand by" Mode.

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Normal operating mode. Cabinet Units is in Standby mode. Control should be holding proper product will cycle the unit at a warmer temperature. temperature. Lights will be off. Units is in defrost . Compressor has been shut off and evaporator fan motor is running to clear any ice that may have accumulated. This is a predetermined program function. Freeze up protection. This unit has Refrigeration System Failure. The unit gone down below the minimum has not satisfied the set point in

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(Please note this does not cover any and all situations) 1. No product in cabinet. 1. Load cabinet Elstat is equipped with a anti-short cycle that can make the unit run warm with no product. 2. Unit in a unpredictable 2. Move cabinet or put into location. Elstat control may be Perishable mode. going in standby mode. 3. Unit was in a previous 3. Perform half reset. location. 1. Unit in a unpredictable 1. Move cabinet or put into location. Elstat control may be Perish