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Use and Maintenance Manual
MONOBLOCK Vacuum Unit
4.4 Air expulsion
It is important to foresee the installation of the muffler to the exhaust pipe to reduce the noise of the
exhaust air.
All the air expulsion piping must be made with specific galvanized steel piping. In the case of lengths greater
than about 6/7 m, consult the technical office for correct sizing of the same.
4.5 Electrical connection
Complete installation without connecting the vacuum unit to the main electrical system.
Once the pneumatic connection has been completed, the general electrical power supply of the machine
must be connected.
According to the type of central there needs to be disposed an adequate electric socket:
●
Socket Schuko monophase of 16A, 230 volt in proximity of the central for models 126MA and 126M
●
Pentapolar socket triphase of 16A – 400 volt for models 126T, 126TA, 238T, 238TA
●
Pentapolar socket triphase of 32A - 400V for models 350T, 350TA, 469T e 469TA
To complete the installation it is necessary to connect the cable of consent sockets to the low tension line
of the suction inlets.
In the case of a wireless system the cable for the inlet consensus on the central has to be connected to the
2– poles cable of the external wireless receiver / Master.
Electrical protection class – Class 1 – Device with fundamental electrical insulation.
Must be connected to the grounding circuit of the main electrical system.
It is the user's responsibility to check whether to provide protection against
overcurrents and indirect contacts upstream of the power supply line of the central
vacuum unit. All the monobloc central units have a magnetothermic switch with a
breaking capacity of 6kA.
A class B 0.3 A safety cut-out breaker must be installed before the electrical panel.
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