TapFlo CTV 40-13.5, Инструкция по эксплуатации, Страница: 9 / 24

Instruction manual CTV vertical pumps 9
1.6 Instruments
In order to ensure a reasonable control of the performance and the conditions of the pump instal-
led, we recommend using the following instruments:
- a pressure-vacuum gauge on the delivery piping.
The output can be read on the pressure, transformed into meters and then compared with the
typical curves.
Electric power
The electric power absorbed by the motor can be measured with wattmeters.
Optional instruments
The optional instruments can advise of abnormal operating conditions of pumps, such as: valves
closed accidentally, missing liquid, overloads, etc.
Thermometer
If the temperature of the pumped liquid can be a critical element, provide a thermometer.
1.7 Motor Connection
An expert electrician must always carry out the electrical connection. Compare the power supply
with the data plate specifications and then choose a suitable connection. The type of connection
is stated on the motor data plate that can be
Y
(star) or
D
(Delta), according to the power supply
of the motor (see figure).
Star connection
Y
Delta connection
D
Follow the prescriptions of the local electricity board for the connection. In no case connect the elec -
trical motors directly to mains but also fit in between a suitable electric switchboard equipped with a
knife switch and suitable safety devices. Safety devices against overloads must protect the motors.
Make sure that the motor has suitable grounding and that it has been connected properly.
1. INSTALLATION
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