Edwards A311-01-985, Instruction Manual

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Installation
A311-03-880 Issue A
3.8.2 Connect the electrical supply

You must provide suitable strain relief on the electrical supply cable. If you do not, the cable (or wires in the
cable) may become disconnected from the pump and there may a risk of injury or death by electric shock.

Connect the electrical supply to the motor through a contactor which has a manual reset control.

Connect the electrical supply to the motor so that it is automatically switched off if the backing pump stops.
If you do not, the HV8000 pump may overheat if it continues to operate when the backing pump is stopped.

You must be able to isolate and lock out the electrical supply from the HV8000 pump.

The motor must be correctly configured (where necessary) and you must make the correct electrical
connections for your electrical supply. If you do not, you can damage the motor.
Connect the supply through a contactor which has overload-protection or use a controller which incorporates a
contactor.
You must use a contactor which has a manual reset control. If you do not, the HV8000 pump could automatically
restart after an electrical overload or an electrical supply failure.
You must use a suitable multi-wire cable and a suitable cable-gland to connect your electrical supply to the pump
motor. The cable-gland (and adaptor, if fitted) must provide a protective seal to IP44 (or higher), as defined by
IEC 529.
3.8.3 Connect the motor thermistors (if fitted)
You must connect the thermistor terminals in the motor to a suitable control circuit, to shut down the HV8000 pump
system if the motor temperature is too high. An example control circuit is shown in
Figure 8 .
You must use a suitable two-wire cable and a suitable cable-gland to connect the thermistors cable (from your control
circuit) to the thermistor terminals in the motor. The cable-gland (and adaptor, if fitted) must provide a protective
seal to IP44 (or higher), as defined by IEC 529.
WARNING
Obey the safety instructions given below when you make the electrical connections. If you do not,
you can cause injury to people or damage to the pump/motor.