Sulphate (ppm)
Type of cooling system Standard Energy recovery
Single pass < 1000 < 200
Recirculating (with tower) < 1000 not applicable
Closed loop < 400 < 200
8. Iron and Manganese
Dissolved iron (ppm) Dissolved manganese (ppm)
Type of cooling
system
Standard Energy recovery Standard Energy recovery
Single pass < 1 < 0.2 < 0.2 < 0.05
Recirculating (with
tower)
< 1 not applicable < 0.2 not applicable
Closed loop < 1 < 0.2 < 0.2 < 0.05
The values in bold are rejection limits.
9. Copper
Copper (ppm)
Type of cooling system Standard Energy recovery
Single pass < 1 < 0.2
Recirculating (with tower) < 1 not applicable
Closed loop < 1 < 0.2
10. Ammonium
The limit of 0.5 ppm is a rejection limit.
The limitation only applies for copper containing systems.
11. Suspended solids
Large particles (size > 10 µm) should not be present as they can be filtered out.
Small particles (< 0.5 µm) are not taken into account.
For particles between 0.5 µm and 10 µm, the following limits apply:
Suspended solids (ppm)
Type of cooling system Standard Energy recovery
Single pass < 10 < 1
Recirculating (with tower) < 10 not applicable
Closed loop < 10 < 1
12. Oil or grease
< 1 ppm (rejection value)
13. Biology
If biology is present, it must be aerobic. Anaerobic biology (in closed systems) must be avoided.
Instruction book
2920 7180 30 129
To Next Page
Loading...
