Samsung AG010KSV Series, Руководство по установке

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MAINTENANCE
Maintenance
64
English
Caution regarding drainage during winter time
Drain valve
f
When DVM CHILLER is not operated during winter time,
drain all water by opening drain valves in CHILLER
shown in figure and drain valves in the pipes.
Air venting
Air vent valve
f
Vent air by opening two air vent valves on inlet and
middle of the pipe of water side heat exchanger.
If air venting is not done properly, it is difficult to
maintain rated flow rate, and pipe corrosion or noise by
remaining oxygen may occur.
f
When venting air, be aware to prevent water get in to
the box.
Water maintenance standard
If chilled/heating water is not maintained by following standard, corrosion and scale accumulation may occur. It may
decrease not only the performance of heat exchange, but also cause product malfunction due to heat exchanger
damage by freezing. Extra care is necessary, and water should be maintained by expert to keep the water within the
standard.
Item
Chilled water system
Heating water system
Effect
Low level medium temperature
heating gauge
Circulation water
(Below 20°C
(68°F))
Supply water
Circulation water
(Over 20°C (68°F)
below 60°C (140°F))
Supply water Corrosion
Forming
scale
Basic item
pH 25°C (77°F) 6.8 ~ 8.0 6.8 ~ 8.0 7.0 ~ 8.0 7.0 ~ 8.0 O O
Electric conductivity
(mS/m, 25°C (77°F))
{μS/cm, 25°C (77°F)}
Below 40
{Below 400}
Below 30
{Below 300}
Below 30
{Below 300}
Below 30
{Below 300}
O O
Chloride ion (mgCl - /l) Below 50 Below 50 Below 50 Below 50 O
Sulfate ion (mgSO
4
2- /l) Below 50 Below 50 Below 50 Below 50 O