Automatic Electric Defrost System.
The automatic electric defrost system may be programmed into the Unit to occur up to nine different times a day with a minimum of two hours between defrost settings. At start of each automatic electric defrost cycle, the re- frigeration compressor will operate for a short time. No.1 freeze cylinder only will go into defrost cycle and de- frost for approximately
‘‘SLEEP’’ (SLEEP TIME)
UNITS EQUIPPED WITH
NOTE: The following paragraph describes “SLEEP” (SLEEP TIME) operation for the
‘‘SLEEP’’ (SLEEP TIME) may be programmed into Unit to allow the Unit to go into sleep time (Unit shut down, freeze cylinders beaters and refrigeration systems not operating). At start of sleep time, the refrigeration com- pressor will operate for 30 seconds to pump freon out of the freeze cylinders evaporator coils, then No. 1 freeze cylinder will go into defrost and defrost for 60 seconds. After No. 1 freeze cylinder has defrosted, No. 2 freeze cylinder will go into defrost and defrost for 60 seconds. At end of the No. 2 freeze cylinder defrost, Unit will shut down and go into sleep time. The ‘‘SLEEP’’ (SLEEP TIME) operation for the
UNITS EQUIPPED WITH ELECTRIC DEFROST SYSTEMS
‘‘SLEEP’’ (SLEEP TIME) may be programmed into Unit to allow the Unit to go into sleep time (Unit shut down, freeze cylinders beaters and refrigeration systems not operating). At start of sleep time, the refrigeration com- pressor will operate for 30 seconds to pump freon out of the freeze cylinders evaporator coils, then both freeze cylinders will simultaneously go into defrost and defrost for approximately
‘‘WAKE UP’’ (WAKE UP TIME)
‘‘WAKE UP’’ (WAKE UP TIME) may be programmed into the Unit to allow Unit to resume normal operation at a desired time. When programmed wake up time is reached, an alarm will sound for a short duration, then the Unit will resume normal operation.
NOTE: Automatic defrost, sleep time, and wake up time may be used in any combination together or separately.
FACEPLATE RELIEF VALVES
The faceplate relief valves, located in each freeze cylinder faceplate (see Figure 3), are
DISPENSING VALVES
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