Calpeda NCE EI Serie Instructions Pour L'utilisation page 16

IST NCEEI_Rev100000262_01_1parte.qxp_Layout 1 19/09/23 08:51 Pagina 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 sup-
ply conductors to the terminals in accordance with the appropriate diagram (cap. "12.2 fig.
5).
EN
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.
For use in swimming pools (not when persons are in the pool), garden ponds and similar
places, a residual current device with IΔN not exceeding 30 mA must be installed in the
supply circuit.
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 para-
graph 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 sy-
stem. 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 NCE Rev. 100000262_01 - Operating Instructions