IOM SYSCREW AIR EVO HSE

3
English
2 - Safety
2.1 Foreword
These units must be installed in conformity with the
provisions of Machinery Directive 2006/42/EC, Pressure
Equipment Directive 2014/68/EU, Electromagnetic
Compability Directive 2014/30/EU - as per EN 55011,
Group 1, Class A, as well as with other regulations
applicable in the country of installation. If these provisions
are not complied with, the unit must not be operated.
Compressors with frequency inverter (FI) are installed. Several
electrical connections are required and all are established inside the
terminal box. FI and the compressor motor are Permanently wired
and the compressor motor cannot be operated without FI. As soon as
the FI is under voltage, the capacitors in the FI intermediate circuit are
charged and from this moment on, all the electrical components in
the terminal box present risks.
The inverter compressor is provided with the safety fuction called
"Safe Torque Off" (STO), that is used as device for removal power
for prevention of unexpected start-up. As long as this function is
activated, no drive energy is transferred to the compressor motor,
so the compressor motor is safely free of torque, but it is not
de-energized. That means that, even if the compressor has been
stopped by the "Safe Torque Off" (STO) or "motoroff" function, the FI
remains energized.
DANGER
The unit must be grounded and no installation
and/or maintenance operations may be
carried out before deenergising the electrical
panel of the unit and protect against restoring
power. Wait at least 5 minutes for capacitors
to de-energize!
Failure to respect the safety measures mentioned above may result
in electrocution hazard and fire in the presence of any short-circuits.
DANGER
Inside the heat exchangers, the compressors
and the refrigeration lines, this unit contains
liquid and gaseous refrigerant under
pressure. The release of this refrigerant may
be dangerous and cause injuries.
DANGER
The units are not designed to be operated with
natural refrigerants, such as hydrocarbons.
Manufacturer may not be held liable for any
problems deriving from the replacement
of original refrigerant or the introduction of
hydrocarbons.
Units are designed and manufactured according to the requirements
of European Standard PED 2014/68/EU (pressure vessels directive).
n The used refrigerants are included in group II (non-hazardous
fluids).
n The maximum working pressure values are mentioned on the
unit’s data plate.
n Suitable safety devices (pressure switches and safety valves)
have been provided, to prevent any anomalous overpressure
inside the plant.
n The vents of the safety valves are positioned and oriented in such
a way as to reduce the risk of contact with the operator, in the
event that the valve is operated. Anyway, the installer will convey
the discharge of the valves far from the unit.
n Dedicated guards (removable panels with tools) and danger signs
indicate the presence of hot pipes or components (high surface
temperature).
DANGER
Hazardous voltages in frequency inverter
housing! Any contact will cause severe injury
or death. Never open FI housing during
operation. In case of any operation in the
FI housing, switch off the main switch and
secure it against being switched on again.
Wait for at least 5 minutes until all capacitors
have been discharged. Close perfectly the FI
housing before switching on again
DANGER
Even in the cases described above the main
switch must be switched off and must be
waited for at least 5 minutes before any
operation in th FI housing
WARNING
Due to the use of compressor frequency inverter,
the unit may produce a strong magnetic field
Keep magnetic and magnetizable objetcs away
from the unit. Persons with cardiac pacemakers,
implanted heart defibrillators or metallic implants
must maintain a clearance of at least 30cm from
the compressor.