6
Technical Information
Service Manual
HC R290 Refrigerant Lssues
Basics
HC R-290 (propane) is an odourless and colourless gas of the group of hydrocarbons.
HC R-290 is heavier than air and at high concentrations can cause
narcotic effects and eventually asphyxiation.
g/m3 to 170 g/m3 in air. The auto-ignition temperature is about 470°C.
present (as with most other refrigerants).
Propane is often used as a fuel such as for heating or barbecues. However, for
use on refrigeration systems, fuel-grade propane is not suitable since it contains
high levels of impurities, which would damage the refrigeration system and may
Please notice that the unit is filled with propane. Details to this refrigerant are found in chapter “refrigerant”. Propane is highly
of people and material.
The structural formula of HC R-290 (propane)
HC R-290 refrig-
erant has a high
grade of purity.
Propane as a
cooking gas is
not useful for
refrigeration
purpose!
Important Refrigerant Properties and
Parameters:
Molecular formula C3H8
Melting point [°C] -188
Boiling point under atmospheric pressure [°C] -42
Molar mass [g mol -1] 44,10
Critical temperature [ °C] 96,8
Critical pressure [bar] 42
Practical limit [g/m3 ] 8
38
2,1
171
9,5
Ignition temperature [ °C] 470
Read More!
Guidlines for the
safe use of hydro-
carbon refrige-
rants
GIZ—PROKLIMA
http://www.gtz.de/
proklima
To Next Page
Loading...