-Dati tecnici e caratteristiche soggetti a cambiamenti senza preavviso -Technische Daten und Eigenschaften mit Änderungen ohne Anzeige
-All specifi cation subject to change without notice
- Données techniques et caracteristiques suiettes à des changements sans avis
33
3. Electrical installation.
The connection must be performed by qualifi ed personnel having the technical skills required by law in the Country where the
machine is installed.
Place a differential circuit breaker with an intervention curve of type C (10+15 ln.) between the power supply line and the elec-
trical board on board the machine, and be sure the line voltage matches the one indicated on the label fi tted on the machine
(allowed tolerance: +/- 10% of the rated voltage).
To properly size the differential circuit breaker, remember to take account of the power absorption indicated on the label.
PLEASE NOTE: The circuit breaker must be placed right next to the machine, so that the technician can clearly see and
reach it if there is need to perform maintenance.
The power cable section must be appropriate for the machine's power output (which can be read on the label applied onto the
machine).
It is obligatory by law to connect the machine to an effi cient earthing system. No liability is accepted for the in observance of
this requirement or if the electrical network to which you are connecting the machine is not up to the currently enforced stan-
dards.
In machines with a three-phase power supply, it is necessary to assist to fan start-up, in order to check that they are rotat-
ing in the right direction; if the direction is different from the one pointed to by the arrow on the label next to the fans, turn the
machine off and invert the two power line phases. Once this operation has been completed, the unit can be restarted.
I
MPORTANT
: T
HE
SCROLL
COMPRESSORS
ONLY
PROVIDE
COMPRESSION
IN
A
CERTAIN
DIRECTION
OF
ROTATION
.
The three-phase compressors can rotate in both directions, depending on how the phases are connected to the terminals T,
T2 and T3. Since there is a 50% chance that the connections are made in such a way that rotation is reverse, it is important
to check that the direction is
correct
.
The operator performs this check by observing decrease in the suction pressure and increase of the inlet pressure that starts
the compressor
running
.
If rotation is inverted, a louder
sound
level is generated than the one emitted during normal system operation and the current
absorbed is higher than the values referred to in the manual. We recommend that you assemble a protector to spot inverted
phases, which will intervene when the phases have not been properly connected.
Follow the instructions in the wiring diagrams annexed to the machine when wiring the cables.
4. Connecting the condensate water discharge
Connect the drain pipe to a pit with syphons installed on the ourside of the temperature reduction cell.
The drain pipe's resistance to heating must be the same along the entire inner span of the pipe.
Summary of Contents for Infinity Series
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