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Idiomas disponibles
1.9. WARNINGS REGARDING POTENTIALLY TOXIC SUBSTANCES
ATTENTION!
Read the following information about the refrigerants employed carefully. Adhere scrupulously to the warnings and first aid proce-
dures indicated below.
Identification of the type of refrigerant fluid used The unit uses R32 refrigerant mixture composed of:
o Difluoromethane (HFC 32) N° CAS: 000075-10-5
Identification of the type of oil used
The lubricant used in the unit is polyester oil; please refer to the indications on the compressor data plate.
DANGER!
For further information regarding the characteristics of the refrigerant and oil used, refer to the safety data sheets available from the
refrigerant and oil manufacturers.
Main ecological information regarding the types of refrigerant fluids used
Persistence, degradation and environmental impact.
Fluid
R32
R32 belongs to the family of hydrofluorocarbons. It is regulated by the Kyoto protocol (1997 and subsequent revisions) being a fluid that contributes to the
greenhouse effect. The index which measures how much a certain mass of greenhouse gas contributes to global warming is the GWP (Global Warming
Potential). The standard measure for carbon dioxide (CO2) is GWP=1.
The value of GWP assigned to each refrigerant represents the equivalent amount in kg of CO2 released over a period of 100 years, in order to have the
same greenhouse effect of 1kg refrigerant released over the same period of time. R32 does not contain elements that destroy the ozone layer, such as
chlorine;, therefore, its ODP (Ozone Depletion Potential) is zero (ODP=0).
In accordance with ISO 817, R32 is classified as A2L, as per ASHRAE Standard 34-1997. High lower flammability limit LFL (307 g/m3), reduced flame
propagation (below 6.7 m/s) and low combustion heat (9.5 MJ/kg) making R32 an A2L fluid, mildly flammable refrigerant. The refrigerant also presents a
minimum ignition energy (MIE>29 Mj) and a spontaneous ignition temperature of 530°C.
SAFEGUARD THE ENVIRONMENT!
The hydrofluorocarbons contained in the unit cannot be released into the atmosphere as they are gases that contribute to the
greenhouse effect.
R32 is a hydrocarbon derivative that rapidly decomposes in the lower atmosphere (troposphere).. Decomposition by-products are highly dispersible and
thus have a very low concentration. They do not affect photochemical smog (that is, they are not classified among VOC volatile organic compounds, ac-
cording to the guidelines established by the UNECE agreement).
Effects on effluent treatment
Waste products released into the atmosphere do not cause long-term water contamination.
Personal protection/exposure control
Use protective clothing and gloves; protect eyes and face.
Professional R32 exposure limits
DNEL 7035 mg/m³
Main toxicological information on the type of refrigerant used
Handling
ATTENTION!
Users and maintenance personnel must be adequately informed about the risks of handling potentially toxic substances. Failure to
observe the aforesaid indications may cause personal injury or damage the unit.
Avoid inhalation of high concentrations of vapour. The atmospheric concentration must be reduced as far as possible and maintained at this minimum
level, below professional exposure limits. The vapours are heavier than air, and thus hazardous concentrations may form close to the floor, where overall
ventilation may be poor. In this case, ensure adequate ventilation. Avoid contact with naked flames and hot surfaces, which could lead to the formation of
irritant and toxic decomposition by-products. Do not allow the liquid to come into contact with eyes or skin.
Procedure in case of accidental escape of refrigerant
Ensure adequate personal protection (using means of respiratory protection) during clean-up operations. If the conditions are sufficiently safe, isolate the
source of the leak. If the extent of the spill is limited, let the material evaporate, as long as adequate ventilation can be ensured. If the spill is considerable,
ventilate the area adequately. Contain the spilt material with sand, soil, or other suitable absorbent material. Prevent the liquid from entering drains, sew-
ers, underground facilities or manholes, because suffocating vapours may form.
IOM_EQRU-SS_EQRHU-SS_2160a4350_208676_230601_ES-EN-FR-DE-IT
67
Chemical formula
CH2F2
Refrigerant R32
Safety classification (ISO 817) A2L
PED fluid group 1
ODP 0
GWP (AR5 - over 100 years) 675
Component R32
EQRU-EQRUSS
EQRHU-EQRHUSS
GWP (over 100 years)
677
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