In
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Water pipe installation
24
English
Installing strainer
f
Install strainer (Field scope: 50 Mesh) that cleaning
is possible at the inlet of DVM CHILLER to prevent
foreign substances such as bolt and stones from
flowing into water side heat exchanger.
- If strainer is not installed or the mesh is too
wide, foreign substances may flow into the
system and cause damage by freezing.
f
Install drain valves at inlet/outlet pipes to drain water
from water side heat exchanger for services.
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Install extra strainer that cleaning is possible near
inlet pipe of the water pump.
Maintaining circulating water amount
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If the product is operated below minimum amount
of circulating water (more than 50 % of rated flow
rate), plate type heat exchanger may freeze and get
damage. Use the product within circulating water
amount.
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Maintain for water level since it may decrease
by blocked strainer, remaining air, malfunction of
circulating pump.
Drainage during winter time
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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.
Drain valve
air venting
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.
Air vent valve
f
When venting air, be aware to prevent water get in
to the box.
Solution for freeze protection device
When freeze protection device is activated, plate heat
exchanger may freeze. Operate the product after
taking care of the cause. If you operate the product
before the problem has been taken care of, plate type
heat exchanger will be frozen and damaged, causing
refrigerant leakage or water may enter into the
refrigerant cycle.
Solution for pump vibration noise
Install flexible joints at inlet/outlet and use vibration
proof rubber on the pump since noise may occur when
pump vibration is transferred to pipes.
DB68-05916A-09_IM_DVM Chiller Outdoor_EU_EN_.indd 24
2022-05-02 오전 9:00:00
