9
Fire or explosion hazards
Thermal hazards
Hazards from operating materials
The unit must be connected to the grounding
conductor.
Smoking is strictly prohibited during work. Always prevent refrigerant and oil from leaking.
When in contact with open flame or hot
surfaces (surface temperature higher than
250 °C), the refrigerants mentioned above
decompose releasing poisonous substances.
In case of any deviations from normal
operating conditions while adding refrigerant
(unusual noises, high condensing pressure
etc.), stop adding immediately and eliminate
the source of the problem.
Be careful during work with oil. In case of
contact with the skin, thoroughly wash o the
oil with soap and water. In case of contact
with the eyes, carefully rinse the eyes with
plenty of water.
In case of swallowing, do not induce vomiting
nor oer any beverages. If you feel sick after
having come in contact with oil, see a doctor
immediately.
The units are designed for compression HFC,
HFC/HFO refrigerants. These substances
belong to Group A1 refrigerants in compliance
with classification according to toxicity (A) and
flammability (1) in line with EN 378-1:
• Refrigerants which, when gaseous, are
non-flammable in air regardless of their
concentration;
• Refrigerants with a time-weighted, average
concentration that have no adverse eects
on the majority of sta who are exposed to
this concentration every day during a normal
Even after the unit is turned o, voltage
remains at inputs of the control cable and the
power supply cable as well as on the terminal
blocks to which the cables are connected.
There must be no ignition sources on the
installation site or near it.
Ensure that suitable fire extinguishing
equipment is available and ready for use
in sucient numbers. Use extinguishing
substances which are suitable for use on live
equipment.
During normal operation and during fault
conditions some components of the unit will
reach extremely high and/or low temperatures.
Accidental contacts with the headers or piping
parts can cause burns and/or frostbite.
The personnel must be trained to provide first
aid in case of burns/frostbite.
Spreading refrigerant and oil residues can lead
to ignition or explosion.
Danger of thermal burns! Avoid contact of
refrigerant with skin and clothing. Remove
contaminated and refrigerant soaked clothing
immediately. If liquid refrigerant enters the eyes
or skin, consult a doctor immediately.
ostrov.com
8-hour working day and a 40-hour working week.
This average concentration is greater than or
equal to 400 ml/m³.
The personnel are not exposed to any direct
danger. Group A1 refrigerants are however
generally heavier than air and can flow into
lower-lying areas. An increased concentration
can arise in static air at ground level. At high
concentrations, there is a danger of cardiac
arrhythmias and suocation due to low oxygen
levels, especially at ground level.
As a heat transfer fluid an aqueous solution of
glycol (water mix) is used. Other heat transfer
fluids are accepted only with the manufacturer’s
agreement. Glycol may cause harm to the
health. Avoid contact with skin, floor, clothing.
With ingestion agitation, glycol causes chronic
poisoning with the failure of vital organs (blood
vessels, kidneys, central nervous system).
Glycol can penetrate through the skin. In case
of contact with skin, remove clothing and wash
skin with warm soapy water. Production sta
must be equipped with special protective
clothing in accordance with industry regulations
and protections. Glycol is combustible at high
temperature in a gaseous state. The premises
must be equipped with a ventilation system
and provided with fire extinguishing equipment.
Glycol spilled on the ground or equipment,
must be washed with abundant water spray.
Liquid spilled on the floor may lead to slipping.
