Rivacold ST Mode D'emploi Et D'entretien page 58

UK
To improve machine lifetime and performance ensure that:
the water temperature is between 20 and 30°C for the units with tower water condensation and between 5 and 20°C for the
units with well water condensation;
the water pressure is between 1 and 5 bar.
ATTENTION:
CONDENSATION CONTROL BY PRESSURE SWITCH
(optional when not supplied as standard)
stops the condenser fan when the condensing pressure falls below the set point minus the differential.
CONDENSATION CONTROL BY FAN SPEED CONTROLLER
(optional when not supplied as standard)
adjusts the speed of the condenser fan according to the condensation pressure, in order to stay within the set limits. It is connected
to the high pressure circuit. The instructions for use are attached to the documentation of the machine.
MINIMUM PRESSURE SWITCH
It stops the machine when the pressure of the suction circuit falls below the set value minus the differential. This happens as a
result of a serious failure.
THERMOSTATIC EXPANSION VALVE (when not supplied as standard)
If there is a particular type of thermo-static valve the refrigeration system is equipped with a liquid receiver and a thermo-static
valve after the condenser.
CRANKCASE HEATER
Heats the compressor crankcase before start-up and keeps it warm during the shutdown. The heat produced evaporates any
liquid refrigerant remaining inside the compressor.
REMOTE CONTROL PANEL
Allows the positioning of the control panel away from the machine; for example next to the cell door (max distance100 m).
TENSION MONITOR
A device to protect the machine against electrical spiking, either high or low.
DIFFERENTIAL THERMO-SWITCH
A device to protect the machine against overloading, short circuits and indirect contacts.
ADDITIONAL MODULE FOR MASTER / SLAVE OPERATION
Allows the connection of two Blocksystem ST-SP in a cell and the possibility to synchronize functions (defrosting, temperature-
alarms display and Blocksystem ST-SP speed).
ADDITIONAL MODULE FOR MONITORING, RECORDING AND REMOTE MANAGEMENT
A device making it possible to connect the Blocksystem ST-SP to a remote management system.
DIFFERENT VOLTAGE
The last number of the machine code model identifies the voltage as stated below:
REMOTE MANAGEMENT SYSTEM
Allows monitoring and programming of the Blocksystem ST-SP via a PC or data recorder. It also allows advanced management
(communication via modem or GSM) of all the alarms of the Blocksystem ST-SP.
water pipes must be protected from low external temperatures.
(when not supplied as standard)
1
2
3
4
5
6
7
8
230/1/50 Hz
400/3/50 Hz
110/1/60 Hz
220/3/60 Hz
220/1/60 Hz
460/3/60 Hz
380/3/60 Hz
230/3/50 Hz
ST-SP Pag. 58 Rev 02 05/13