KAESER ESD.2C - Cooling Water Quality; Design Data; Tab. 19 Cooling Water Temperature (ΔT=10 K); Tab. 20 Specification: Heat Exchanger (Option K2)

Continuous-flow cooling system
A continuous-flow cooling system is an open cooling system. Ground, surface or drinking water cir‐
culate once through the cooling system.
Further information The dimensional drawing in chapter 13.2 gives the flow direction, size and location of the connec‐
tion ports.
2.15.1 Option K2
Water cooling (plate-type heat exchanger)
The primary winding of the heat exchanger is connected to the machine. The specifications
refer to the secondary side of the heat exchanger.
2.15.1.1 Design data
Cooling water temperature rise 10 K
ESD 442
Maximum permissible in‐
let temperature [°C]
40
Flow rate [m
3
/h]
22.7
Pressure drop [bar] 2.0
Tab. 19 Cooling water temperature (ΔT=10K)
Heat exchanger specification
ESD 442
Material 1.4401
Braze Copper (Cu)
Maximum working pres‐
sure [bar]
10
Max. permissible dis‐
charge temp. [°C]
70
Maximum flow rate [m
3
/h]
23
Unsuitable cooling medi‐
um
Sea water
Consult KAESER on the suitability of water.
Tab. 20 Specification: Heat exchanger (Option K2)
2.15.1.2 Cooling water quality
Characteristics/content Closed cooling sys‐
tem
Open cooling system
pH value 7,5–9,0 7,5–9,0
Total hardness [°dH] 0–20 0–20
Carbonate hardness [°dH] <20 <4
* CFU: colony-forming units
2 Technical Specifications
2.15 Water cooling
12
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2 ESD_2C_10357405_10–LIN_00 E