Watson-marlow 701 User Manual download pdf (Page 8)

7 Installation

Pump

Site the pump on a flat, horizontal, vibration-proof surface allowing a free flow of air around

it. Ensure there is 1m of relatively straight flexible tubing before the pumphead inlet and

after the pumphead outlets. Two 15mm-diameter holes are provided for bolting the

baseplate to the mounting surface, if required.

AC Motor

 Ensure that mains voltage/frequency are in accordance with motor nameplate

information.

 Secure protective conductor connections.

 If a three-phase motor is running in the wrong direction, interchange any two phases.

 Close unused cable entrance holes and the terminal box itself in a dust and watertight

manner.

 A current overload relay should be fitted to a contact breaker. Connect the motor in

accordance with the wiring diagram that is in the motor terminal box.

 When a thermal protection switch is fitted in the motor, the leads will be found in the

motor terminal box. They should be connected to stop the pump if the switch operates.

The switch will open circuit at an over temperature condition. See below for the

connection of the drive motor showing possible ancillary switches and protections.

The ancillary switches are rated to 220/240V 1ph 50Hz. The Start contact should

have a sprung return which will disengage following energisation of the coils C1

and C1/1.

1. Emergency

stop

2. Start

3. Stop

Ensure that an emergency stop switch is fitted within reach of the pump.

The 701R pumphead range has electrostatic earth straps which are

connected to the baseplate. Please ensure that the baseplate is

electrostatically earthed to ground before operation.

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Watson-marlow 701 User Manual Page 8