Safety Precautions
CAUTION
Flow directions are as follows:.
•
Refrigerant such a chlorofluorocarbons or ammonia on the primary side.
（
Design pressure of the primary and secondary sides might differ depending on the model.
）
•
Upward for vaporized fluid such a refrigerant .
•
Downward vapor and/or Gas to be condensed.
•
If using for liquid-liquid applications, the fluid with a smaller temperature change should be
on the secondary side.
•
Upward for fluids with high viscosity.
In the case of copper-brazed material, pay attention to the components of the chemicals.
Depending on the chemicals used, copper may be eluted, resulting in a significant reduction
in durability.
When cleaning the inside of BHE, keep the temperature difference as small as possible
during the cleaning process.
Repetition of rapid temperature change during cleaning may damage BHE.
If performing the leak test, pressurizing for a one side and the other side should be in
atmospheric condition.
If the test pressure is applied to both sides at the same time, any leakage cannot be detected.
If performing the pneumatic test for a one side, by submerging more than 5 minutes in
the water, bleed air sufficiently from the other none-pressurized side.
If air is not sufficiently bled, the remaining air might be confused for air leakage.
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