IOM SYSAER R32 (IOM SYSAER R32 01 N 2GB)

English
If the water circuit is to be drained for a time exceeding one month, the circuit must be fully
charged with nitrogen to prevent any risk of corrosion.
Caution
The manufacturer is not liable for recommendations in terms of water treatment (call a specialized
company).
However, this matter has a critical nature, and particular care must be given to ensure that the type
of treatment applied is effective.
The liability of the manufacturer or its representative will not be sought when non treated water
or non compliant quality water is used.
Caution
26 SYSAER R32
Apply the following guidelines :
² No NH
4
+
ammonium ions in the water, highly detrimental to copper. <10mg/l
² Cl
-
chloride ions are detrimental to copper with a risk of puncture by picking corrosion. <10mg/l.
² SO
4
2-
sulphate ions may cause perforating corrosion. < 30mg/l.
² No uoride ions (<0.1 mg/l)
² No Fe
2+
and Fe
3+
ions, particularly in case of dissolved oxygen. Fe< 5mg/l with dissolved oxygen <
5mg/l. The presence of these ions with dissolved oxygen indicates corrosion of steel parts, likely
to generate corrosion of copper parts under Fe deposits, particularly in the case of multitubular
exchangers.
² Dissolved silica: silica is an acid element of water and may also cause corrosion. Content < 1mg/l.
² Water hardness: Values between 10 and 30 may be recommended. This facilitates scaling deposits
likely to limit copper corrosion. Excess TH values may lead to clogging the pipes.
² TAC<100
² Dissolved oxygen: Prevent any sudden change in the water's oxygenation conditions. Also, avoid
deoxygenating water by sparging inert gas as well as overoxygenating it by pure oxygen sparging.
Disturbing oxygenation conditions destabilizes copper hydroxides and particle salting-out.
² Electrical Resistivity - Conductivity: The higher the resistivity, the slower the corrosion. Values above
3000 ohm/cm are preferred. A neutral environment favours maximum resistivity. For electrical
conductivity, values around 200-600 S/cm can be recommended.
² pH: neutral pH at 20°C (7 < pH < 9)
13. WIRING DIAGRAM AND LEGEND
13.1. WIRING DIAGRAM
SEE APPENDIX
13.2. LEGEND
SE4903 Models SR R32 105 -120- 140 Power 400V / 3~ / 50Hz ± 10%
SE4903 Gas detection module Control 230V / 50Hz ± 10%
N 819