20.05 – 4138421_03
7
- Install the unit at a distance enough from the exhaust wells, to ensure
that the possible loss of gas may reach and pollute the aquifer
- Keep all lubricants in properly marked containers do not keep
flammable liquids near the plant
- Do not remove the protections from mobile elements while the unit
is running
- Do not use cables with inadequate section or flying connections, not
even for limited periods or emergencies
- Check the unit is properly earthed before starting it
- Before opening the electrical panel, disconnect the unit from the
mains by means of the external isolator
- In case of units with shunt capacitors, wait 3 minutes from when
power supply was disconnected from the unit before accessing inside
the electrical panel
- If the unit is equipped with integrated inverter compressors,
disconnect the power supply and wait at least 15 minutes before
accessing for maintenance: the internal components remain live for
this time, generating the risk of electrocution
- The safety devices must be maintained efficient and periodically
checked as prescribed by current regulations
- In case a piece is disassembled, make sure it is correctly reassembled
before restarting the unit
- Even with the unit off, prevent the fluid in contact with the
heat exchangers exceed the temperature limits indicated in the
documentation and freeze.
- Do not send the heat exchangers fluids other than water or its
mixtures with ethylene glycol/propylene in a maximum concentration
of 30%
- The machine must only be employed for the use for which it was
made; any other use can be dangerous and void the warranty
P
REVENTIONS
- Make sure that the protections of mobile elements are correctly in
place before restarting the unit
- Fans, motors and belt drives may be in motion: always wait for them
to stop and take appropriate precautions to prevent their activation
before accessing them
- The machine and the pipes have very hot and very cold surfaces that
lead to risk of burns
- Before opening a machine panel, ascertain whether it is or not firmly
connected to it by hinges
- Louvers of the heat exchangers, edges of the components and metal
panels can generate cuts
- The installation must ensure that the temperature of the fluid
entering the unit is maintained stable and within the provided limits;
therefore, pay attention to the adjustment of any external thermal
exchange and control devices (drycooler, evaporating towers,
area valves, ...), to the adequate dimensioning of the mass of fluid
circulating in the plant (in particular when plant areas are excluded)
and to install systems for the recirculation of the necessary fluid flow
rate so as to maintain the machine temperatures within the allowed
limits (e.g. during the start-up phase).
- The material used for the machine protective packaging must always
be kept out of the reach of children as it is a source of danger
- In units with compressors in parallel, do not disable the individual
compressors for long periods.
- This is an appliance not accessible to the general public.
Summary of Contents for NYB
Page 2: ......