Ma
Int
E
nan
CE
Maintenance
68
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.
Filling hole
Drain hole
f
If the DVM CHILLER has an integrated pump, be sure
to also drain all water from the pump by removing its
filling and drain hole plugs. (Refer to Using the pump
on page 27.)
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.
DB68-05916A-09_IM_DVM Chiller Outdoor_EU_EN_.indd 68
2022-05-02 오전 9:00:14
