Aqua Tempo Super II Series DC Inverter Air-cooled chiller unit (50Hz) MCAC-ATSM-201704
49
15.2.2 Connection drawing of pipeline system
unit
unit
Expansion tank
Water replenishing
Dirt discharge valve
Differential pressure by-pass valve
Drain valve
Two-way valve
Three-way valve
Terminal
Auxiliary electric heater
15.2.3 Water quality
※Water quality control
When industrial water is used as chilled water, little furring may occur; however, well water or river water,
used as chilled water, may cause much sediment, such as furring, sand, and so on. Therefore, well water or
river water must be filtered and softened in softening water equipment before flowing into chilled water
system. If sand and clay settle in the evaporator, circulation of chilled water may be blocked, and thus
leading to freezing accidents; if hardness of chilled water is too high, furring may occur easily, and the
devices may be corroded. Therefore, the quality of chilled water should be analyzed before being used, such
as PH value, conductivity, concentration of chloride ion, concentration of sulfide ion, and so on.
※ Applicable standard of water quality for the unit
PH
value
Tota l
hardness
Conductivity Sulfide
ion
Chloride
ion
Ammonia
ion
Sulfate
ion
Silicon Iron
content
Sodium ion Calcium
ion
7～
8.5
<50ppm
<20μV/cm(25℃)
No <50ppm No <50ppm <30ppm <0.3ppm No
requirement
<50ppm
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