Baxi PBM-i 20 Manual Del Usuario página 85

SAFETY RULES
performed; do not wear clothes or accessories that may
get caught on objects or be sucked in by air flows; restrain
and tie back long or loose hair before accessing the inside
of the unit
• before opening any panelling on the unit, check whether or
not this is hinged to the unit
• heat exchanger fins, edges of components and metal pan-
els may cause cutting injuries
• do not remove the protective guards from moving parts
while the unit is operating
• make sure that the protective guards on moving parts are
correctly repositioned before restarting the unit
• fans, motors and belt drives may be moving: before access-
ing these parts, make sure they have stopped and take suit-
able precautions to prevent them from being started
• the surfaces of the unit and the piping may be very hot or
very cold, with the risk of burns
• never exceed the maximum pressure allowed (PS) for the
unit's fluid circuit, as shown on the rating plate
• before removing any components along the pressurised
fluid circuits, shut-off the section of the pipe in question
and drain the fluid gradually, until reaching atmospheric
pressure
• do not use the hands to check for any refrigerant leaks
Prevention of residual electrical risks
• disconnect the unit from the mains via the external discon-
nect switch before opening the electrical panel
• make sure the unit is earthed correctly before starting it
• the unit must be installed in a suitable place; specifically, if
intended for indoor use, it cannot be installed outdoors
• do not use unsuitably sized cables or flying lead connec-
tions, not even for limited periods or in emergencies
• for units with power-factor correction capacitors, wait three
minutes after powering down the unit before accessing the
inside of the electrical panel
• if the unit is fitted with centrifugal compressors with built-in
inverters, disconnect power and wait at least 15 minutes
before accessing the unit for maintenance: the internal
components are still live for this period of time, conse-
quently with the risk of electrocution
Prevention of other residual risks
• the unit contains pressurised refrigerant gas: no opera-
tions must be performed on the pressurised equipment,
except for maintenance carried out by trained and autho-
rised personnel
• connect the unit to the different systems following the
instructions shown in this manual and on the unit's pan-
elling
• the fluid circuit contains harmful substances. Do not drink
from the fluid circuit, and prevent its contents from coming
into contact with the skin, eyes and garments.
• to avoid environmental risks, ensure that any fluid leaks
are contained in suitable devices, in compliance with local
laws.
• if dismantling any part, make sure it is reassembled cor-
rectly before restarting the unit
• if standards in force require fire-fighting equipment to be
placed near the unit, make sure that such is suitable for
extinguishing fires on electrical equipment, compressor
lubricants and refrigerants, as specified on the safety data
sheets for these fluids (for example, a CO 2 extinguisher)
• for units fitted with pressure-relief devices (safety valves):
if these devices are activated, hot refrigerant gas will be
released at high speed; prevent this from harming people
or damaging objects; if necessary, suitably connect the
discharges as specified by EN 378-3 and local laws in
force, making sure to carry fluids in any safety group other
than A1 to an open and safe place
R134a R410A R404A R407C HFO-1234ze(E)
safety
A1 A1
group
• safety devices must be perfectly working at all times and
periodically checked, as required by the standards in force
• keep all lubricants in duly marked containers
• do not store flammable liquids near the system
• only perform brazing or welding operations on empty pipes
without any lubricant residues; do not work with flames or
other sources of heat near piping containing refrigerant fluids
• do not work with naked flames near the unit
• the units must be installed in structures that are protected
against lightning, as specified by applicable laws and tech-
nical standards
• do not bend or strike piping containing pressurised fluids
• do not walk or rest other objects on the units
• total assessment of fire risk in the place of installation (for
example, calculation of fire load) is the user's responsibility.
• during any handling operations, make sure the unit is
secured to the means of transport so as to prevent it from
moving or tipping over
• the unit must be transported in compliance with standards
in force, keeping account of the characteristics of the fluids
contained in the unit and their features, as described on
the safety data sheet
• improper transport may cause damage to the unit and cre-
ate refrigerant leaks. Before commissioning the unit,
checks must be made to identify and repair any leaks.
• accidental release of refrigerant in an enclosed area may
create oxygen deprivation and consequently the risk of
asphyxia: install the unit in a suitably ventilated environ-
ment, in accordance with EN 378-3 and local laws in force.
• installation must comply with the requirements of EN378-3
and local laws in force, specifically, indoor installations
must feature suitable ventilation and refrigerant leak
detectors, where necessary
• if not otherwise authorised by BAXI, the unit must be
installed in places classified as non-hazardous (SAFE
AREA)
U I A
A1 A1 A2
EN PBM 20÷40 5