Water Control - LG MULTI V WATER IV ARWV100LAL4 Installation Manual

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MFL67705803 2018. 9. 17. 오오 12:58 Page 11

Water control

Water control
• Keep the water temperature between 10~45°C. Other it may cause the breakdown.
- Standard water supply temperature is 30°C for Cooling and 20°C for heating.
• Properly control the water velocity. Otherwise it may cause the noise, pipe vibration or pipe contraction, expansion
according to the temperature. Use the same water pipe size connected with the product or more.
• Refer to the water source pipe diameter and water velocity table below. As the water velocity is fast, air bubble will
increase.
Diameter (mm)
< 50
50 ~ 100
100 <
• Be careful of the water purity control. Otherwise it may cause the breakdown due to water pipe corrosion.
(Refer to 'Standard Table for Water Purity Control')
• In case the water temperature is above 40°C, it is good to prevent the corrosion by adding the anticorrosive agent.
• Install the pipe, valve and gauge sensor in the space where it is easy to maintain. Install the water valve in the low
position for drain, if required.
• Be careful not to let air in. If so, the water velocity will be unstable in the circulation, pump efficiency will also de-
crease and may cause the piping vibration. Therefore, install the air purge where it may generate the air.
• It can use to both the open cooling type and closed cooling type tower.
Velocity range (m/s)
0.6 ~ 1.2
1.2 ~ 2.1
2.1 ~ 2.7
Water control
Installation Manual 11

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