Randell BC-18-PUB, Руководство оператора

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as indicated above. Note: the unit can only be powered down
while in the Idle Mode.
5. Chill Mode Operation
a. The controller can run one of four possible chill modes, by either
manual selection or automatically depending on certain prior conditions.
This is explained more fully below:
i. Idle Mode
1. This mode is automatically started when the On key is
depressed.
2. This mode is returned to automatically when any chill modes
have
been stopped.
3. Operation:
a. When the controller enters the Idle Mode, the display
will showthe text “IdLE,” briefly on the segmented
display, followed by the display of the air temperature.
b. The unit will pre-chill the cabinet to the Product
Temperature Set Point (PtSP). The Air temperature will
be displayed and will be accompanied by a flashing Air
status LED indicator. Once Air temperature reaches the
set point temperature, the Air status LED indicator will
illuminate solid, meaning the air temperature is at or
below the “Safe” temperature. Any food probe inside the
cabinet will be validated in a similar fashion should their
individual temperature readings reach the “Safe”
temperature.
c. In the event any food probe reaches a temperature
greater than the Temperature Alarm (tALn) preset, the
display will flash the offending probe temperature while
toggling the corresponding status LED indicator. Refer
to the Auto Mode section for further details on the
Temperature Alarm feature.
d. During this mode, the Fan relay is on and the
Compressor Relay is activated “On” when Air
temperature is above Product Temperature Set Point
(PtSP) + Product On/Off Differential (PdiF) and “Off”
when Air temperature is below Product Temperature Set
Point (PtSP) - Product On/Off Differential (PdiF). Note:
Since no mode has actually been selected, no mode
LED’s will be illuminated.
ii. Auto Mode
1. Can be manually selected by pressing the Mode key once
(illuminating
the Auto LED) and started by pressing the Start key.
2. Can also be directly started by just pressing the Start key
when no
mode LED’s are illuminated.