TapFlo TE Series, Original Instruction

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2. OPERATION
IOM manual Tapflo TE series
18
2. OPERATION
2.1. Before starting the pump
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Make sure the pump is installed according to the installation instruction (chapter 1).
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Filling of the pump with liquid before start is not necessary.
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Check manually that the motor is free to turn, moving the motor cooling fan.
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Make sure that the piping is not clogged and is free from residues or foreign objects.
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The suction shut-off valve (if any) must be completely open.
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The shut-off valve on the discharge side (if any) must be completely opened.
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Any auxiliary connections must all be connected.
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When installation is new or reinstalled, a test run of the pump with water should be
conducted to make sure that the pump operates normally and does not leak.
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When installation is new or reinstalled, check the pump housing nuts tightening
torque (see chapter
5.5 “ Tightening torques ” ). After approximately one week of
operation, the torque should be checked again. This is important to prevent possible
leakage.
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Starting the electrical motor makes the pump run at full capacity!
2.2. Starting and operation
Open the discharge valve and start the electric motor. The pump must not run with
completely closed discharge - these conditions can seriously damage the pump and cause
injury to the operator.
If the pressure shown on the pressure gauge on the discharge piping does not increase,
turn off the pump immediately and release pressure carefully. Repeat the connection
procedure.
Make sure that pressure on the discharge does not exceed 4 bar!
A device must be incorporated into the pump, system, or drive, to prevent the pump
exceeding the above stated pressure. Do not allow the pump to operate with a
closed/blocked discharge unless a pressure relief device is installed.
A pressure relief valve must be assembled obligatory on the discharge side by the
customer.
Pump can be equi pped with such a safety device on customer’s request .
If there are changes of flow rate, head, density, temperature or viscosity of the liquid, stop
the pump and get in touch with our technical service.
Note! Considering the suction capacity when air is still in the suction pipe, it is
recommended to start with low speed (using a frequency inverter) at the beginning.
At 50 Hz, rise up and shut down should be set to 5 seconds. This is not necessary if the
pump is filled with liquid before start.
When the pump has been filled with liquid, the speed may be raised in order to increase
the suction capacity of the pump. Remember that suction capacity is higher when pump
runs slowly.