This is the instruction manual for the Hitachi Deep Well Pump, which introduces the components, usage methods, installation precautions, etc. of the injector
The manual explains the parts and their usage, safety precautions, and the required professional installation for Hitachi shallow‑deep well pumps. It emphasizes that installation must be performed by a qualified dealer or contractor and not by the end‑user.
Detailed sections cover piping work, connection to the pump body, the rainwater (降水) function, optional jet extensions, and step‑by‑step operating procedures. Technical specifications such as pump output, suction height, flow rate, and pressure ranges are listed for each pump model. This manual is written in Japanese.
| Pump Output | 250 W, 400 W, 600 W, 750 W |
|---|---|
| Suction Height | 18 m – 35 m |
No, installation requires professional work and must be performed by a dealer or contractor.
It reduces the effort of lifting the jet by allowing water in the pipe to flow back into the well.
A well diameter of at least 100 mm (4B) is required.