[5]
It is recommended that a valve be installed on the discharge pipe for the adjustment of discharge volume and for
the prevention of overload onto the motor. When installing both a check valve and a valve, the check valve
should be positioned between the pump and the valve.
[6]
Do not fail to install a pressure gauge on the discharge piping.
[7]
Install an air bleeding valve if the discharge pipe is very long horizontally.
[8]
Install a drain valve for the drainage of liquid if there is a chance that the liquid in the discharge pipe might
freeze.
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[1]
Use an electromagnetic switch that conforms with the specifications (voltage, capacity, etc.) of the pump motor.
[2]
If using the pump outdoors, waterproof the wiring to protect the switches from rainwater.
[3]
Electromagnetic switches and push buttons should be installed reasonably distant from the pump.
[4]
For starting up a pump with a motor of 5.5 kW or higher, be sure to use a Star Delta starter, soft starter or
invertor.
*Refer to the instruction manual of the motor issued by the motor maker for detailed handling instructions.
Electrical connections
ATTENTION
The electrical connection should be carried out by an authorized electrician in accordance with
local regulations. Please make sure that the electrical data on the nameplate of the motor
correspond to the electricity supply on which it will be used. Motors must be connected to a motor
protection switch.
4. Wiring
