A80, A80t, W80, W80t Operating Manual
28.08.2019
23
5.1.1. Recommended quality of cooling water:
pH
7.5 to 9.0
Sulfate [SO
4
]
2-
< 100 ppm
Hydrocarbonate [HCO
3
]/
sulphate [SO
4
]
2-
> 1 ppm
Hardness [Ca
2
+, Mg
2+
]/[HCO
3-
]
> 0.5
°
dH
Alkalinity
60 ppm < [HCO
3-
] < 300
ppm
Conductivity
< 500 μs/cm
Chloride (Cl -)
< 50 ppm
Phosphate (PO4 3-)
< 2 ppm
Ammonia (NH
3
)
< 0.5 ppm
Free chlorine
< 0.5 ppm
Trivalent iron ions (Fe
3+
)
< 0.5 ppm
Manganese ions (Mn
2+
)
< 0.05 ppm
Carbon dioxide (CO
2
)
< 10 ppm
Hydrogen sulfide (H
2
S)
< 50 ppm
Oxygen content
< 0.1 ppm
Algae growth
Not permitted
Suspended solids
Not permitted
Cooling water circuit
There is a risk that oil could leak from the refrigeration system
(compressor) of the temperature control system into the cooling water
in case of a fault in the cooling water circuit!
Obey the laws and regulations of the water distribution company.in the
region where the unit is operated.
Connect cooling water:
•
Cooling water connectors G3/4" female / Barbed fittings ½” inner
diameter.
•
The used cooling water will exit via the outlet (OUT ). Plumb this
connection to the respective drain or return flow circuit.
•
Supply cooling water via the inlet (IN ).
5.1.2. Accessories
Order No.:
Description
8 930 312
Reinforced tubing (pressure resistant) 1/2“ inner
dia.
8 970 482
2 Tube clamps
8 920 000
Particle filter for cooling water circuit
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