Optional Items - Rivacold BLOCKSYSTEM FA Mode D'emploi Et D'entretien

disposal in an environment-friendly fashion helps to prevent possible negative effects on the
environment and its health as well as aiding the re-use and/or recycling of the materials used to
make the appliance.
Illegal disposal of the product by its user will lead to the application of administrative sanctions.
12.

OPTIONAL ITEMS

•
Water cooled condenser
This is obtained by replacing the air-cooled condenser with a water-cooled one.
To connect water condensers, it is necessary to use pipes with a diameter of no less than those
already connected to the Blocksystem, respecting the inlets and outlets. If the machine is sized
for condensing using a water tower, a coupling that connects the two pipes with smaller
sections of the condenser forms the inlet pipe. When condensing is to be carried out using
cistern water, the inlet pipe can be distinguished by the fact that it has a barostatic valve to
regulate water flow.
Install the shut off valve of the water mains nearest to the operator.
Never close the water shut off valve while the appliance is operating.
To improve the performance and duration of the machine, check the following:
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PLEASE NOTE: the water pipes must be protected against low outside temperatures.
•
Condenser fan speed variator
To maintain condensing within set limits, the condenser fan speeds must be adjusted according
to condensing pressure. This device must be connected to the high-pressure circuit. The
instructions for use are attached to the documentation supplied with the machine.
•
Minimum pressure switch
This operates by stopping the machine when the pressure in the suction circuit drops to below
its set value. This occurs as the result of a fault.
•
Crankcase heater
This is used to heat up the compressor crankcase before start up and to keep it warm during
stoppage. The heat produced by the heater causes any refrigerant in a liquid state inside the
compressor to evaporate.
•
Remote panel
This allows the control panel to be placed at a certain distance from the Blocksystem. For
example, alongside the coldroom door (max. distance 100m).
• Voltage monitor
This cuts off power to the Blocksystem in the event that mains voltage is out of the set range.
Resetting is automatic.
• Differential thermomagnetic switch
This device protects the Blocksystem against overloads, short circuits and indirect contact.
The water temperature must be between 20 and 30°C for water condensing units
using tower water, and between 5 and 20°C for water condensing units using cistern
water the pressure must be between 1 and 5 bar.
BLOCKSYSTEM FA - FT Pag. 29
UK
REV. 04 10/07