10
CONNECTION OF POWER SOURCE AND MOTOR
Warning
Install Ground Fault Interrupter to prevent electrical shock!
When connecting the power source and the pump, maintenance or repair, turn off the wiring circuit
breaker and place a sign “Men working”. Make sure not to turn on the switch nor cause a fatal
accident. Specially, when a number of people work together, pay attention not to return the breaker at
fault.
The ground line must be arranged.
Install the ground line through the use of the plug tab.
When installing the sensitive current variable type earth leakage breaker, follow the directions given
by the licensed electrical engineer.
The up and down of the sensed current and the prevention of electrical shock/insulated resistance
are conflicting.
Do not touch the electrical equipment, wire and switch by wet hands to prevent the electrical shock.
Conduct a periodic inspection whether the motor wiring terminal in the power board is burn or
discolored.
When the terminal is loose, it could cause the burn out for heat or fire. This work should be done by
the licensed electrical engineer.
INSPECTION
Warning
・
Before the operation, make sure to inspect the pump.
Content
Repetition
Daily
Once a
month
1. Before
Operation
1-1 Liquid leaks from the connection
1-2 Open/close of the handle of the drain valve
1-3 Deformation of the pipe for liquid temperature
1-4 Loosen bolts of the connection
1-5 Liquid leaks from the outside of the pipe
1-6 Clean
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2. During
Operation
2-1 Liquid leaks from the connection
2-2 Deformation of the pump
2-3 Motor noise
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3. At the end
3-1 Clean
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