5 | Installation
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0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en
Water-cooled version with plate heat exchanger (optional):
CWO
CWI
PHE
CWI
Cooling water inlet
CWO
Cooling water outlet
PHE
Plate heat exchanger
• Connect the cooling water connections (CWI / CWO) to the water supply.
Connection size:
– DN15 PN10, DIN 2566 (CWI / CWO) with direct cooling
– G1/2, ISO 228-1 (CWI / CWO) with plate heat exchanger
NOTICE
Ambient temperature below 0°C.
Risk of freezing in the cooling system!
• Make sure that the water supply complies with the cooling water requirements.
• Foresee antifreeze in the supply cooling water system.
• Make sure that the cooling water complies with the following requirements:
Supply capacity
l/min
2 ... 4
Water pressure
bar
3 ... 6 (direct cooling)
1 ... 6 (plate heat exchanger)
Supply temperature
°C
+10 ... +25
Required pressure differential across supply
and return
bar
≥
3 (direct cooling)
> 0.5 (plate heat exchanger)
• 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)
Summary of Contents for COBRA ATEX NC 0100-0300 B
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