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Due to our policy of continuous product innovation, some specifications may change without notification.
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LG
Air-Cooled Heat Pump Inverter Scroll Chiller Installation and Owners Manual
Freezing Precautions
Installing in Areas Where Winter Outdoor Ambient Air Temperatures Could Fall Below 32°F (≤0°C)
If winter outdoor ambient air temperatures could fall below 32°F (≤0°C), take the measurements detailed below to prevent the pipes from freezing,
and help prevent damage to the heat exchanger.
•
Circulation water can freeze if the outdoor ambient air temperature is low (≤32°F [≤0°C]), and the chiller is not operating. When the outdoor
ambient air temperature is ≤32°F (≤0°C), turn the water pump on and circulate water.
• If the chiller will not be operating for an extended period during winter season, drain the circulation water out of the system.
•
Add anti-freeze to prevent the circulation water from freezing during the winter season (if design temperature is below 41°F).
• Maintain water flow following design specifications to reduce damage from rusting, scaling, and corrosion.
• LG is not responsible for any chiller damage resulting from poor water quality management or improper water processes.
Inlet Water
Pipe
Drain Hole
Drain Hole
Inlet Water Pipe
Outlet Water Pipe
Figure 30: Inlet Water Pipe with Drain Hole.
Inlet Water
Pipe
Drain Hole
Outlet Water
Pipe
If the leaving water line does not sufficiently drain into the entering water
line, additional drain holes may be required.
Figure 31: Positioning the Drain Hole When Bends or Traps are
Unavoidable.
Inlet Water Pipe To Be Installed Level
The inlet water pipe is to be installed level so that no water remains
in the pipe after draining through the drain hole. If it is not level, wa-
ter will remain in the pipe, which could freeze and damage the pipe /
chiller components. Add a drain hole at the bottom of the pipe.
FREEZING PRECAUTIONS
