Victory VBC-660 - Manual (Page 8)

Blast Chill Cycle:
All machines have the facility for the operator to use any of the 4 pre-programmed timed cycles and a
probe control blast chilling cycle, with the option of soft or hard blast.
The probe controlled blast cycle functions via the food core probe supplied. The probe monitors the
core temperature of the food and will not permit the blast cycle to stop until the default temperature
(37°F\3°C) is reached. When controlling the cycle with the food probe make certain that the probe or
probes are located in the product before the blast cycle is started.
Pressing the selections automatically adopt the previous settings on the first push. So the repeating
of blast is just pushing buttons 1- 2- 3 & Blast .
Blast Chill Cycle (Hard or Soft):
During the blast chill hard cycle the air temperature inside the cabinet should go down to
approximately 14°F (-10°C). This is for the timed chilling cycle only. During soft chill cycle the air
temperature stays above 32°F (0°C ).
All blast chillers have 3 basic modes:
1. Normal storage: 34°F (1°C) to 37°F (3°C)
2. Blast Chill Hard: 14°F (-10°C)
3. Blast Chill Soft: 34°F (1°C)
DEFROST
At the end of each cycle, a defrost will automatically clear any ice from the evaporator ready for the
next cycle.
During the operation in storage mode a defrost will be performed automatically at the factory preset
intervals of 6 hours.
Furthermore, if a blast cycle is cancelled and the defrost thermostat is measuring 34°F (+1°C) or less,
the machine will automatically proceed to defrost.
When the machine is in the defrost mode the ‘Cabinet Temp’ window of the control panel will display
‘DEF’. When the defrost cycle is finished the compressor will run for approximately 90 seconds before
the fans cut in.
Following every defrost period there is a 3 minute period during which a blast cycle cannot be selected.
This short interval is to allow defrost water to drip away from the evaporator.
The cabinet is now ready to start another cycle if desired. During the defrost operation it is safe to
leave products inside the machine.
ROLL- IN BLAST CHILLERS WITH STORAGE POD
On roll-in chillers fitted with storage refrigeration pods, the roll-in blast chiller will function as a small
cold storage room when the chiller is in store mode. A defrost will occur every six hours for 20 minutes.
When the blast facility is engaged, the storage pod will be disengaged and the main compressor and
main evaporator fan will take over until the end of the blast cycle. Immediately following the blast
cycle, a main defrost period will occur. When the defrost period is complete the main compressor will
start up again, followed 1-2 minutes later by the main evaporator fan for a period of 10 minutes. After
10 minutes the blast chiller will revert to storage mode until the blast facility is once more engaged.
THE CONTROLS
The control panel enables the display of detailed information about the machine and its performance.
If the machine is also fitted with a printer (standard on roll in machines, optional on reach in cabinets),
detailed historical information can be printed out for immediate use or archived.
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