Piping Example; Wiring Method - Yoshitake REDMAN DD-2 Series Manual

22. Avoid connection of dissimilar metal piping which will cause a galvanic potential difference because
the product or the parts may be corroded.
23. Select the product considering conditions of use such as operation frequency and durability.

7.2 Piping example

Pressure
gauge
Inlet

7.3 Wiring method

1. Wiring differs according to voltage, AC 100 V or
200 V. Wire the coil according to the instruction on
the label attached to the coil.
2. In order to prevent disconnection or insulation
failure, avoid unnecessarily pulling the lead
wires or subjecting them to excessive load while
wiring or use.
3. Use electric wires which have a core of 0.75 mm
or more.
4. Use a fuse (3A) to protect the electric circuit.
Use a circuit protector as follows if the product is
used in a fuel supply system.
▪ Rated voltage 100 V: 0.5 A circuit protector
▪ Rated voltage 200 V: 0.3 A circuit protector
5. When using a terminal box, do not turn it to
change its posture.
* Doing so may cause disconnection or
insulation failure.
Bypass stop valve
Pressure
gauge
Stop
Strainer
valve
2
8
DD-2 Stop
Solenoid valve valve
Switch
Fuse
Power
Pressure gauge
Outlet
Circuit protector Coil
AC 100 V
AC 200 V
■EPDT-251b■