desmon GBC-15, Service Manual

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Rev 07/04/2015
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4.3.3 GBF-3GN2/3 (smallest self-contained unit) ............................................................................... 38
4.3.4 Remote units, units GBF20GN2/1, GBF40GN2/1,GBF20GN1/1 .............................................. 39
4.4. HOW TO ACCESS EVAPORATOR ASSEMBLY ................................................ 39
4.4.1 Evaporator Assembly Description .............................................................................................. 39
4.4.2 Accessing the Evaporator .......................................................................................................... 41
4.4.3 Replacing the Temperature Sensing Probes ............................................................................. 41
4.5. REPLACING THE EVAPORATOR FAN .............................................................. 44
4.6. REPLACING THE DOOR SWITCH ..................................................................... 44
4.6.1 GBF-3GN2/3 (smallest self-contained unit) ............................................................................... 44
4.6.2 Units from 5 up to 18 shelves ................................................................................................... 44
4.7 REPLACING THE PRESSURE SWITCH ............................................................ 45
4.8 REPLACING THE DOOR FRAME HEATER ....................................................... 46
4.9 REPLACING THE RELAY BOARD ..................................................................... 47
4.10 REPLACING THE KEYPAD ................................................................................ 48
5 VACUUM AND CHARGE PROCEDURE ............................................................................................... 49
5.1 VACUUM AND CHARGING INSTRUCTION ....................................................... 49
5.1.1 Self Contained Models ............................................................................................................... 49
5.1.2 Remote Models .......................................................................................................................... 50
5.1.3 Vacuum and Charging Recommendations ................................................................................ 50
6 SCHEMATICS ........................................................................................................................................ 51
6.1 SCHEME OF COMPONENTS ............................................................................. 51
6.2 AIRFLOW REQUIREMENTS .............................................................................. 52
6.2.1 Self Contained - Airflow Requirements ................................................................ 52
6.2.2 Remote - Airflow Requirements ........................................................................... 53
6.3 CONNECTION OF REMOTE CABINET TO “NON-DESMON” CONDENSING
UNIT 55
6.3.1 Connection with existing refrigerant lines ............................................................ 55
6.3.2 Hook the electrical power to the unit .................................................................... 56
I. HOW TO READ THE MODEL NUMBER ............................................................................................... 58
II. DATA CHART TABLE ........................................................................................................................... 59