Piper Products RCM 121, Use And Maintenance Manual

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fig. 5
fig. 6
fig. 7
fig.9
fig. 8
4.9.2 Chilling cycle +3°C Soft or Hard and freezing -18°C Soft or Hard with standard or multi-point shaft
Chilling/freezing phase
fig. 10
4.6 Defrosting
To 3°C Soft press key , for +3°C Hard also press key
To select -18°C Soft cycle blast chiller press key , for -18°C Hard also press key
DISPLAY1 shows total blast chiller time, (Fig. 5)
DISPLAY2 shows cold storage appliance temperature,
The time symbols , showing the kind of blast chiller SOFT or HARD or blast
freezer SOFT or HARD temperature and STOP are switched on.
By pressing key cycle blast chiller/blast freezer phase control is established through the
core probe. DISPLAY1 (fig.6 ) shows the temperature indicated by the probe.
To start the selected cycle press , the blast chiller symbol lights up. (fig.7).
At the end of the cycle blast chiller, the system automatically shifts into conservation mode,
symbol lights up (fig. 8) and DISPLAY2 shows the cold storage appliance temperature.
If core temperature is not reached within the established time, the TIME OUT alarm is activated.
The blast chiller phase proceeds, but symbol is in blink mode.
The AL5 symbol blinks on DISPLAY1. (fig. 9).
The alarm stops automatically when the system shifts to conservation mode.
Press key at any time during the cycle blast chiller to display the time since the start of the
cycle.
In conservation, press key to display blast chiller duration.
Press key to end this phase, the machinery shifts to Stand-by mode.
To simplify probe extraction from the product ( after a -18°C blast freezer ), press probe heating
key , symbol is switched on.
Heating takes place only if the probe temperature is lower than -5°C for about 30’’.
With the machinery in Stand-by, a defrosting cycle can be started by pressing key
, the symbol (fig.10) appears on DISPLAY 1and DISPLAY 2 shows the
temperature revealed by the evaporator probe.
The defrosting cycle may be interrupted by manual re-pressing key .
Keep door open to reduce defrosting cycle duration.