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12.4.2
INVERTER POWERED ELECTRIC MOTOR
The power supply via inverter is always the responsibility of the installer, who must ensure compliance with the standards and:
•
checking and any measures necessary to comply with the limits of immunity and emission laid down by the standards;
•
checking the suitability of the system and the inverter for operation with standard motors, i.e. class F, or the need for specific
motors for these types of operation.
12.4.3
ROTATION DIRECTION
SCL K blowers - exhausters must be used with the rotation direction indicated
by the arrow on the electric motor fan cover.
•
To check the rotation direction, switch the motor on briefly and observe the
fan.
•
To change the rotation direction, invert the power cable connections,
leaving the earth connection unchanged.
(refer to the connection diagram inside the terminal box)
13
STARTUP
13.1
PRELIMINARY CHECKS
Before starting the machine for use, carry out the following preliminary checks:
•
If the unit has not been started up for some time, check its condition and, if necessary, remove any dust from the external surfaces;
•
Deactivate/open any pipe closing devices (shut-off valves, solenoid valves, etc.) before starting the unit.
•
Never start and operate the unit with the inlet and/or outlet port closed!
•
Make sure the ambient and conveyed gas suction temperatures come within the values: -15°C (+5°F)÷ +40°C (+104°F);
•
Check correct operation of the pressure-relief valve (not supplied).
13.2
OPERATION
The unit can be started for use after carrying out the preliminary checks.
•
Start the unit by switching on the power to the electric motor.
ATTENTION !
When powered by an inverter, the unit's nominal pressure or vacuum characteristics cannot be maintained.
For the performance of an inverter powered unit, contact the FPZ after-sales service.
ATTENTION !
If the ATEX 3G motor is used, the inverter must not be installed on the unit and the line frequency must be that specified on the motor
rating plate.
ATTENTION !
The position of the motor does not always allow the rotation direction to be checked, therefore it is advisable to do this check before
installation of the system.
Non-compliance with the unit’s intended use can cause serious accidents.
The unit must only be started:
•
after carefully reading, understanding and complying with this user manual (“SAFETY RULES” and “INSTALLATION”);
•
in conformity with its intended use as prescribed in "FORESEEN USE”;
•
respecting the values given in the “SPECIFICATIONS”.
Danger of explosion!
The unit is designed to be used for conveying flammable or explosive gas and is sealed.
Do not start the machine before sealing the connections between the parts and connecting and activating the unit and
system surveillance system.
ENERGOEKONOM spol. s r.o., Wolkerova 433, CZ-250 82 Úvaly, Czech Republic, Tel.: +420 281 981 055, [email protected], www.energoekonom.cz
