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16. If case of a possible frozen line, take proper measures to remove water inside the piping or equip
the product with insulating materials.
* Freezing may damage the product. However, do not insulate the coil.
17. When installing the product in the piping, do not grip and turn it with a tool.
* Failure to follow this notice may damage the coil.
18. Do not pull the lead wires or hold the wire to lift and carry the product.
As for the terminal box attached type, do not pull the terminal box or carry the product by holding
the terminal box only.
* Failure to follow this notice may damage the coil (or the terminal box).
19. Make the lead wires connected to the coil long enough so that the coil is easily dismounted or
replaced when required.
20. Band and support the lead wires of the coil to avoid their contact with workers or other equipment
and to avoid subjecting the wires to its own weight and tension.
21. Install the product vertically to a horizontal piping with the coil faced upward, if using the product for
the equipments where the pressure difference between the inlet and outlet sides can accidentally
become 0 MPa at least temporary, such as a heat exchanger (see the table 1 on Page 1).
* Failure to follow this notice may prevent the product from functioning properly.
22. When an automatic control valve is installed at the inlet or outlet side of the product, keep more than
3 meters between them.
* Failure to follow this notice may result in malfunction of the product due to differential pressure
fluctuation caused by fluctuation in inlet pressure at the time of the product actuation.
23. The nominal size of piping at the product inlet side should not be smaller than that of the product
(do not reduce the inlet pipe diameter).
Additionally, use the stop valves at the inlet and outlet side of the product at full open condition (see
"6.1 Piping example").
* Failure to follow this notice may result in malfunction of the product due to differential pressure
fluctuation caused by fluctuation in inlet pressure at the time of the product actuation.
6.1 Piping example
Pressure
gauge
Inlet
* Differential pressure of at least 0.03 MPa is required to actuate the product when the coil is set sideways.
* Use the stop valves at the inlet and outlet of the product at full open condition.
Bypass stop valve
Pressure gauge
Stop
Strainer
valve
11
Stop
Solenoid valve
valve
DP-100
Pressure
gauge
Outlet
■EPDT-247i■
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