Vaillant ecoTEC VU Manuel de service télécharger pdf (Page 25)

Electrical installation

ecoTEC plus installation and maintenance instructions 0020134823_01 25

Caution.

Risk of damage caused by incorrect

installation.

Mains voltage at the incorrect plug termi-

nals on the ProE system may destroy the

electronics.

> Only connect the mains connection cable

to the terminals marked for the purpose.

> Use a flexible connection cable.

Caution.

Risk of damage caused by incorrect

installation.

Connecting wires that have been stripped

too far may cause short circuits and dam-

age the electronics if a strand accidentally

comes loose.

> Only strip the lines a maximum of 3 cm

to prevent short circuits.

> Lay the lines correctly.

> Use strain reliefs.

In IE, reference should be made to the current edition of

the ETCI (Electro-Technical Council for Ireland) rules.

The boiler is supplied for connection to 230 V, ~ 50 Hz sup-

ply fused at 3 A. The connection to the supply network is

made using a 3 A fused double-pole isolator with a contact

opening of at least 3 mm at all poles. A prerequisite here is

that only the boiler and controllers are connected). At the

connection point to the mains, it must be possible to com-

pletely isolate the boiler and its auxiliary controllers electri-

cally. The connection should be easily accessible and adja-

cent to the boiler. Use a three-core flexible cable in accord-

ance with BS 6500, tables 6, 8 or 16

(3 x 0.75 to 3 x 1.5mm

The rated voltage of each line in the mains must be 230 V;

with mains voltages over 253 V and below 190 V, the unit

may not function properly.

> Open the electronics box (¬section8.2).

> Use a flexible, commercial mains connection cable that is

compliant with standards.

> Guide the mains connection cable through the cable duct

on the left of the base of the unit.

> Use the grommet supplied to seal the cable duct.

230V~ 230V~

8.2 Cable routing of the mains connection cable

> Insert the mains connection cable into the electronics

box.

> Uses the strain reliefs provided.

> Shorten the flexible mains connection cable as neces-

sary.

> Strip the flexible mains connection cable by 2-3 cm, but

not more than 3 cm.

> Insulate the conductor of the flexible mains connection

cable.

> Fit conductor end sleeves on the stripped ends of the

conductors.

> Connect the provided green ProE plug for the mains con-

nection to the flexible mains connection cable using a

screwdriver.

> Insert the ProE plug into the corresponding PCB slot

(L, N and earth) (¬fig.8.2).

> Lay the lines correctly.

> Secure the cable in the electronics box using the strain

reliefs.

> Close the electronics box (¬section8.2).

Ensure that the connection cables are securely

fastened to the plug terminals.

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Vaillant ecoTEC VU Manuel de service Page 25

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