5 | Installation
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0870569784_RA_RC1000-1600B_-0003_IM_en
5.2.3 Cooling Water Connection (Optional)
Water-oil heat exchanger without inlet accessories
WHE
CWO
CWI
CWO
TV
PSA
MV
WF
CWI
WHE
Water-oil heat exchanger with inlet accessories
WBV
CWI
Cooling water inlet
PSA
Pressure switch
CWO
Cooling water outlet
WBV
Water bypass valve
WHE
Water-oil heat exchanger
WF
Water filter
TV
Thermostatic valve
MV
Magnetic valve
The factory default adjustment of the thermostatic valve (TV) is set in position 2 (approx.
75°C oil temperature).
Connection size:
• Make sure that the cooling water complies with the following requirements:
Min. supply capacity
l/min
8
Water pressure
bar
2 ... 6
Supply temperature
°C
+5 ... +35
Required pressure differential across supply
and return
bar
≥
1
• To reduce the maintenance effort and ensure a long product lifetime we recommend
the following cooling water quality:
Hardness
mg/l (ppm) < 90
Properties
Clean & clear
PH value
7 … 8
Particle size
µm
< 200
Chloride
mg/l
< 100
Electrical conductivity
µS/cm
≤
100
Free chloride
mg/l
< 0.3
Materials in contact with the cooling water Stainless steel, copper and cast iron
NOTE
Water hardness unit conversion.
1 mg/l (ppm) = 0.056 °dh (german degree) = 0.07 °e (english degree) = 0.1 °fH (french
degree)
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