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6.3 Indoor installation
For a correct ventilation of the compressor room provide the following :
•
Air inlet windows suitable for the intake of the air flow rate Qa suched by the compressor operating simultaneously and the air
cooling flow rate Qv
•
Air outlet windows suitable for the exit of the cooling air flow rate Qv, position a suitable extraction fan on these windows
Qv ( m3/h ) is the total ventilation flow rate suggested to maintain the room temperature abaout 10°C above the outdoor temperature and it
is calculated from the sum No ( kW ) of the motors operating simultaneously in the room following this relation :
Qv = 40 x No
6.4 Outdoor installation
CLIMATIC CONDITIONS
MEASURES
Strong sunlight
Protect with a canopy
Rainy / Snow
Protect with a canopy
Temperature < - 20 °C
Use only ROBOX SCREW and heat inside air before any start-up
Wind > 20 m/s
Protect with windbreak walls
Hoarfrost
Heat inlet silencer
Dust / Sand storm
Special filter with preseparator
NOTE : For different climatic conditions contact ROBUSCHI ( or an authorised distributor )
6.5 Electrical connections
Electric connections must be set up by authorised specialists in compliance with regulations applying to the place of installation and in
accordance with the requirements of the Body supplying electrical energy.
WARNING: ROBUSCHI refuses all responsibility for electric connections not complying with the law in force.
6.5.1 Unit without electric supply cabinet
To grant the safety operation of ROBOX SCREW the final customer has to provide an electric supply cabinet following the rules in force
and the following characteristics:
•
STANDARD UNIT: connect the standard and optional instruments as indicated in chapter 10.4 For /V versions temporize the
closure of the vacuum valve VSM/E electrovalve for 30 seconds from the start of the unit.
•
UNIT WITH AUXILIARY PANEL (OPTIONAL) Wire the auxiliary electric cabinet (see rear ROBOX SCREW) to the electric supply
cabinet following the drawing attacched at chapter 10.3
to insert it in the safety chain of the electric supply cabinet.
ATTENZIONE: ROBOX SCREW it’s not guaranteed if electrical connections are not wired as descrive
on the scheme at chapter 10.3.
•
Protect the main motor, the noise enclosure fan motor and the motor of the eventual servoventialtion of the main motor by mean
of automatic switches set at the relevant nominal currents indicated in the relevant motor plates
•
Use suitable electric cables depending on the nominal current of the electric motors
•
Keep the electric cables away from heat sources and/or pointed edges
•
Wiring diagram accompanies the terminal box of the motors , if the diagram has not been supplied request it from the motor
manufacturers
•
Protect the system by means a suitable grounding device, use the terminal PE showed in the drawings at pages 41
•
Install a local control panel with a general switch with a key in order to lock it in open position during service operations.
6.5.2 Unit with electric supply cabinet
The final customer must provide the electric supply of the electric supply cabinet delivered by ROBUSCHI following the wire diagram inside
the electric cabinet
To grant the safe operation of ROBOX SCREW please note the following :
•
The red safety push button on the unit is operative even when the electric supply cabinet delivered by ROBUSCHI is operated
from a remote control.
•
When the electric supply cabinet delivered by ROBUSCHI is operated from a remote control the safe operation of ROBOX
SCREW must be granted by the remote control system
WARNING : ROBUSCHI will not be liable for any damage, breakdown, injury deriving from the operation of
the remote control
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