Pictographs - Atlas Copco GA 75+ Instruction Book

If biology is present, it must be aerobic. Anaerobic biology (in closed systems) must be avoided.
Type of cooling system
Single pass
Recirculating (with tower)
Closed loop
The table shows the recommended values. The values in bold are rejection limits.
7.5

Pictographs

Description
158
Standard
5
< 10 / < 10
5
< 10 / < 10
3
< 10 / < 10
If additives are used in the cooling water, take into account that the cooling capacity will
change.
Δm = ((C - C ) * X) / (C
pw pa
with
Δm: change of mass flow of the coolant
C : specific heat capacity of water
pw
C : specific heat capacity of the additives
pa
X: the percentage of additives
Biology (CFU/ml)
7
7
5
*(1-X) + X*C ) * 100 %
pw pa
Pictographs
Instruction book
Energy recovery
3 5
< 10 / < 10
not applicable
3 5
< 10 / < 10
2920 7109 60