BAC FXVT 288 Series, Инструкция по эксплуатации и техническому обслуживанию

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Conductivity < 3000 µS/cm
Chlorides < 200 mg/l
Total suspended solids < 10 mg/l
COD < 50 ppm
Above values are general guidelines for pressurized closed systems closed systems with a leak rate lower than
15% of system volume per year. If the annual make-up of the closed system is greater than 15% yearly or if highly
corrosive water such as water with very low hardness or alkalinity is used, it is recommended to consider
alternative stainless steel material or implement a proper water treatment program to prevent steel corrosion.
Stainless steel coil are available to cool corrosive fluids or water and ethylene/propylene glycol solutions in
systems open to the atmosphere. In case of stainless steel heat exchanger coils the circulating water quality
needs to remain within the following limits:
SST304L SST316L
pH 6.5 - 10.5 6.5 - 10.5
Hardness (as CaCO3) 0 - 500 mg/l 0 - 500 mg/l
Alkalinity (as CaCO3) 0 - 500 mg/l 0 - 500 mg/l
Conductivity < 3300 µS/cm < 4000 µS/cm
Chlorides < 250 mg/l < 750 mg/l
Total suspended solids < 10 mg/l < 10 mg/l
COD < 50 ppm < 50 ppm
In all cases, regardless of the material of construction of the coil a competent water treatment company should be
consulted for the specific water treatment to be applied, suitable for all the materials of construction used in the
entire system.
Connecting pipework
All piping external to BAC cooling equipment must be supported separately.
In case the equipment is installed on vibration rails or springs, the piping must contain compensators to eliminate
vibrations carried through the external pipework.
The equipment outlet piping must be installed under the operating level of the equipment to prevent air suction and
pump cavitation.
Suction pipe sizing should be done according to good practice, which may for larger flows require larger pipe
diameters than the outlet connection. In such cases adapter pieces need to be installed.
W W W . B A L T I M O R E A I R C O I L . E U
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2 General Information
2 General Information