9. Information about ! uorinated greenhouse
gases(CE 517/2014)
9.1. Introduction
9.2. Physical properties
salva
According to the Standard (CE) num. 517/2014 concerning
some conservatory effect fluorine gases, we inform you that
the unit, subject of this Manual, has been designed to contain
refrigerant:
The refrigerant R-404A (HFC-404A) is a mixture of three ga-
ses and that is the reason why it is extremely important to fit
the unit exclusively with the refrigerant at its liquid phase. If the
unit is fitted with refrigerant R-404A at its vapour phase, the
refrigerant composition could be wrong and it could damage
the system.
Chemical
Compo-
nents
HFC-125
Penta• uorethane
HFC-143a
1,1,1 Tri• uorethane
HFC-134a
1,1,1,2 Tetra• uorethane
Molecular Weight
Boiling Point at 101,3 kPa
Critical Temperature
Critical Pressure
Critical Density
Saturated-liquid Density at 26,7ºC
Heat of evaporation at the boiling point
Speci! c heat of the constant pressure vapour
(Cp at 1 atm and 26,7ºC)
In• ammable Range (% air volume)
Ozone Destruction Capacity (ODP-R11=1)
Security group classi! cation according
to ASHRAE/ANSI standard 34-1992
Atmospheric heating capacity (PCA)
-110-
R-404A
Molecular
Name
formula
CHF2CF3
CH3CF3
CH2FCF3
Usuario_Iverpan2006_(c-f-i)011210
Weight
44%
52%
4%
97,6
-46,2ºC
72,2ºC
3668,6 kPa
483,7 kg/m³
1034,7 kg/m³
35,8 kJ/kg
0,09 kJ/kgºC
None
0
A1/A1
3.784