- 5 -
Wiring
Wiring for power source, earthing and external signal.
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Confirm to local electric codes.
- Do not perform wiring work while power is on. Otherwise, an
electrical shock or short circuit may result, and consequently
the pump may fail. Be sure to turn off power before service is
performed.
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- Check that the main power is turned off.
- Apply the specified power voltage. See the spec label.
- When an external fuse is used and it has blown, always solve the
root cause of blowout. Be sure to unplug the power cable before
investigation. If the fuse blows frequently, the starting current may
be a root cause.
- For the APN-S041-D3, red(+) and black(-) leads are for power
voltage.
- For the APN-S041-D4, red(+) and black(-) leads are for power volt-
age. ) and black(-) leads are for 1-5VDC external variable
signal. The black(-) lead is common for both the power and the
signal.
Pipework
Connect tubes to the pump.
- Cut tube ends flat.
- The short tubing with the minimum bends is optimal to reduce
resistance.
- Use tubes resistant to the pumping
pressure. A proper tube size should
be used according to the O.D. of the
pump inlet/outlet for the prevention of
gas ingress/leak or other failure.
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Do not have tubing bent or pressed. Otherwise, the inlet and outlet of
the pump may break.
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* If suction line connection is imperfect,
the pump entrains air and will not run
correctly.
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Install a valve in the suction line
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Outlet
Inlet
Содержание APN-S041-D3
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