Calpeda NCE EI Serie Instructions Pour L'utilisation page 16

To connect the main electric line it is not necessary to open the terminal motor cover.
Follow all safety standards.
The pump is in class II and therefore it does not need to be earthed.
Compare the frequency and mains voltage with the name-plate data and connect
the supply conductors to the terminals in accordance with the appropriate diagram
GB
( fig. 5).
cap. "12.2
Insert the terminal board 1) in the proper seat (2), connecting the red wire with letter
N and the blue wire with letter L. Screw the two screws (3) and tighten the sealing
nuts (4) to the fairlead.
Install a device for disconnection from the mains (switch) with a contact separation
of at least 3 mm on all poles.
No external motor protection is required.
All wires must be positioned so that they do not, in any manner, touch the tubing or
the body of the circulator.
7 STARTUP AND OPERATION
7.1 Preliminary checks before start-up of the pump
Do not start-up the device in case of damaged parts.
7.2 First starting
OFF
ATTENTION: never run the pump dry.
Start the pump after filling the plant completely with liquid.
Bleeding the hydraulic system.
Due to its particular structure, the pump does not need the bleed valve.
Burn hazard. Due to high temperature of the fluid, the pump casing
and the motor may reach temperatures higher than 50°C.
DO NOT TOUCH these parts unless with suitable protective devices
or wait and make sure they have completely cooled.
7.3 Operation LEDs
LEDs of different colours indicate the operation mode.
- Violet LED: auto operation mode (NCE EA only)
- Green LED: operation mode with proportion curve.
- Orange LED: operation mode with constant curve.
- Blue LED: operation at set speed mode.
- White LED: shows the presence of air in the system; the pipes must be bled (see
paragraph 7.4)
- Red LED: pump blocked (see paragraph 22 "Troubleshooting").
7.4. Bleed process
The pump is equipped with a system that identifies the presence of too much air in
the system. The white LED indicator informs of the presence of air in the circuit by
flashing.
To bleed the system:
- open the air escape valve in the hydraulic circuit;
- set the pump at MAX;
- allow the pump to work at this setting for a short period;
- the LED indicator stops flashing when the system has been bled.
Page 16 / 96
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NCE Rev. 3 - Operating Instructions