PSR1 500
Operation
wc_tx001993gb.fm
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4
Operation
4.1
Before Starting
4.1.1
Make sure once again that the product is of the correct voltage and
frequency rating.
NOTICE
:
Using the product at other than rated voltage and frequency
will not only lower its performance but may damage the product.
Note:
Confirm the rated voltage and frequency on the model
nameplate.
4.1.2
Confirm the wiring, supply voltage, circuit breaker capacity, and motor
insulation resistance.
Reference insulation resistance = 20 M
Ω
or greater.
Note:
The reference insulation resistance (20 M
Ω
or greater) is the
value when the pump is new or has been repaired. For the reference
value after installation see “Periodic Maintenance Table.”
4.1.3
The setting on the circuit breaker or other overload protector should be
made in accord with the rated current of the pump.
Note:
See “Operating Specifications” for the rated current of the pump.
4.1.4
When powering the pump with a generator, be certain the generator is
sized to supply the required power for the pump and any other
equipment powered by the generator.
Test Operation
NEVER operate the pump while it is suspended in the air. The recoil
may result in injury or other major accident.
NEVER start the pump when people are standing next to it. A current
leak can result in electrical shock.
The pump will not start until the pump casing is wet. Before performing
a test operation or starting the pump when the remaining water level is
low, pour in clean water from the hose coupling. Approximately 2.5
liters (2.64 quarts) of priming water is required.
Run the pump for a short time (3–10 minutes) and confirm the
following:
•
Using an ammeter (clamp-on type), measure the operating cur-
rent at the L1 and L2 phase wires on the terminal.
COUNTERMEASURE:
If the operating current exceeds the rated
value, pump motor overload may be a cause. Make sure the pump has
been installed under proper conditions as described in
Installation
.
WARNING
WARNING
