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2.3 Electrical wiring
Electrical wiring must be performed by a qualified electrician.
We are not responsible for personal injury or property dam-
age due to nonobservance of this warning. Contact us or your
nearest distributor for wiring as necessary.
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Before wiring
1. Confirm that power is disconnected before work.
2.
Wiring work should be done in accordance with local elec-
tric codes. Use the recommended wiring accessories.
3. Observe the rated voltage specified on the name plate.
4.
When an external fuse is used and has blown out, always
investigate and solve root causes. Replace the fuse before
resuming operation.
Be sure to unplug the pump before investigating the cause
of blowout. If the fuse blows frequently, starting current may
be a root cause. In this case review the system.
Installation
3. Tube size
Select proper tube size, otherwise liquid leaks and failure
may result.
CAUTION
Use of a wrong tube size bears the risk of coming off,
causing an air leak.
4. Valve installation
Install valves on both discharge and suction lines.
• Suction valve:
For adjustment of an air flow and a vacuum.
• Discharge valve:
For maintenance and shutoff.
5. Tube connection
Push the tubes into the inlet and outlet as far as they will go.
NOTE: If suction line connection is imperfect, the pump sucks
air and it prevents the pump from bringing out full per-
formance.
