AERMEC NRK 0650 A - Page 23

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System: Chiller with plate heat exchanger
PH 7,5 - 9
Total hardness 4,5 - 8,5 °dH
Temperature < 65 °C
Oxygen content < 0,1 ppm
Max. glycol amount 50 %
Phosphates (PO₄) < 2ppm
Manganese (Mn) < 0,05 ppm
Iron (Fe) < 0,3 ppm
Alkalinity (HCO₃) 70 - 300 ppm
Chloride ions (Cl-) < 50 ppm
Sulphate ions (SO₄) < 50 ppm
Sulphide ion (S) None
Ammonium ions (NH₄) None
Silica (SiO₂) < 30 ppm
WATER CHARACTERISTICS
NRK 0150 (P1-P3)
Components as standard
1 Plate heat exchanger
2 Water temperature sensors (IN/OUT)
3 Water lter
4 Pump
5 Air drain valve
6 Expansion vessel
7 Pressure relief valve
8 Flow switch
Components not provided and responsibility of the installer
9 Anti-vibration joints
10 Flow shut-o valves
11 Air drain valve
12 Pressure gauge
13 Storage tank
14 Antifreeze electric heater
15 Drain valve
16 Loading unit
3
1
2
2
5
11
8
9
9
10
10 10
4
13
14
11
7
12
12
6
15
10 10
16