Faults Search; Possible Causes - Rivacold P Mode D'emploi Et D'entretien

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This is obtained by replacing the air condenser with a water condenser.
To connect the water condensers, you must use tubes with a diameter of no less than those present on the Blocksystem SF - P - SV,
in compliance with the input and output instructions. If the unit is dimensioned for water condensate with tower water, the input
tube is the tube composed of a joint that connects the two minor section tubes of the condenser. Instead, when condensation is
planned with well water, the input tube is distinguished because a static pressure regulator valve is installed on it that is used to
regulate the water flow. Install the shut-off tap of the water supply line within the operator's reach.
ATTENTION:
To improve the yield and duration of the machine, check that:
the temperature of the water is between 20 and 30°C for the units with tower water condensate and between 5 and 20°C for
units with well water condensate;
water pressure is between 1 and 5 bar.
ATTENTION:
CONDENSER FAN VELOCITY CONTROL
CONDENSER FANS PRESSURE SWITCH (optional –
Stops the condenser fan when condensation pressure goes under the calibration value less the differential.
CONDENSER FAN VELOCITY TRANSFORMER
Regulates the fan velocity of the condenser based on the condensation pressure, to maintain it within the limits established. It is
connected to the high pressure circuit. The instructions for use are attached to the machine documentation.
MINIMUM PRESSURE SWITCH (optional – where not standard)
Stopping the machine, it intervenes when pressure in the suction circuit goes under the calibrated value less the differential. This
occurs as the result of a fault.
THERMOSTAT VALVE EXPANSION (where not an optional)
If the lamination unit is the thermostat valve, the refrigeration system comes with a liquid receiver and a thermostat valve after the
condenser.
CARTER TOLERANCE
Used to heat the compressor carter before start-up and keeping it warm during stoppage. The heat produced by the tolerance
causes the evaporation of any refrigerant in liquid state which is found inside the compressor.
REMOTE PANEL (where not standard)
Allows positioning of the control panel at a certain distance from the machine, for example beside the door of the coldroom
(maximum distance 100 m).
VOLTAGE MONITOR
Device that enables machine protection from low and excess voltage.
DIFFERENTIAL THERMO-MAGNETIC SWITCH
Device that protects the machine from surges, short circuits and indirect contacts.
ADDITIONAL MODULE FOR MASTER/SLAVE FUNCTIONING
Enables connection together of 2 Blocksystems SF or P or SV in a coldroom with the possibility of synchronised functions
(defrosting, alarm-temperature displays and Blocksystem SF or P or SV running).
ADDITIONAL MODULE FOR MONITORING, REGISTRATION AND TELEMANAGEMENT
Allows connection of the Blocksystem SF – P – SV to a telemanagement system.
DIFFERENT VOLTAGE
The last digit on the abbreviation of the machine model identifies the voltage according to the following diagram:
TELEMANAGEMENT SYSTEM
Enables monitoring and programming of the Blocksystem P-SF-SV via a PC or data recorder. It gives the possibility of advanced
management (communication via modem or GSM) of all the Blocksystem SF or P or SV alarms.
C h a p t e r 8
C h a p t e r 8
F a u l t s s e a r c
F a u l t s s e a r c
The compressor does not start up and does not release a humming
A
sound
1 Lack of voltage. Start-up relay with open contacts.
2 Thermal protector is intervening.
3 Loose electrical connections or wrong electrical connections.
never close the water shut-off tap with the device functioning.
the water tubes must be protected from low external temperatures.
where not
1
2
3
4
5
6
7
8
h
h

POSSIBLE CAUSES

standard)
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
1 Check the supply line or substitute the relay.
2 Check the electrical connections.
3 Tighten the connections or carry them out again in
compliance to the electrical wiring diagram.
SOLUTIONS
P-SF-SV Pag. 60 Rev 00 02/11