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Product protection device
Device protection unit
Strainer on water pipe
To protect the water cooling type product, you must install a strainer with 50 mesh or more on the heat water supply pipe.
If not installed, it can result in damage of heat exchanger by the following situation.
1. Heat water supply within the plate type heat exchanger is composed of multiple small paths.
2. If you do not use a strainer with 50 mesh or more, alien particles can partially block the water paths.
3. When running the heater, the plate type heat exchanger plays the role of the evaporator, and at this time, the temperature of the
coolant side drops to drop the temperature of the heat water supply, which can result in icing point in the water paths.
4. And as the heating process progresses, the water paths can be partially frozen to lead to damage in plate type heat exchanger.
5. As a result of the damage of the heat exchanger from the freezing, the coolant side and the heat water source side will be mixed
to make the product unusable.
Heat Source
(Water)
Refrigerant
1. Pollution of
Heat source
2. Partially frozen 3. Damage
ENGLISH
Installation Manual 31
Upper graph is a theoretical value for selection and it may be different according to specification of strainer.
: Suggestion range
: Allowed range
Head loss of strainer on water pipe
Base on ARWB096 Base on ARWB192
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