5 Installation
18 Installation and maintenance instructions ecoTEC plus 0020209591_01
2. Insert the alternative connection piece with offset to-
wards the front.
3. Use two screws (1) to secure the connection piece to
the product.
5.9 Electrical installation
The electrical installation must only be carried out by a quali-
fied electrician.
Danger!
Risk of death from electric shock!
Mains connection terminals L and N remain
live even if the on/off switch is turned off:
▶ Switch off the power supply.
▶ Secure the power supply against being
switched on again.
5.9.1 Opening the electronics box
▶ Open the electronics box as shown in the illustration.
5.9.2 Carrying out the wiring
Caution.
Risk of material damage caused by incor-
rect installation.
Mains voltage at incorrect terminals and plug
terminals may destroy the electronics.
▶ Do not connect any mains voltage to the
eBUS terminals (+/-).
▶ Only connect the mains connection cable
to the terminals marked for the purpose.
1. Route the supply lines of the components to be connec-
ted through the cable duct provided on the underside of
the product on the left.
2. Use strain reliefs.
3. Shorten the supply lines as necessary.
4. To prevent short circuits if a strand accidentally comes
loose, only strip the outer sheathing of flexible lines to a
maximum of 30 mm.
5. Ensure the inner conductor insulation is not damaged
when stripping the outer sheathing.
6. Only strip inner conductors just enough to establish
good, sound connections.
7. To avoid short circuits resulting from loose individual
wires, fit conductor end sleeves on the stripped ends of
the conductors.
8. Screw the respective plug to the supply line.
9. Check whether all conductors are sitting mechanically
securely in the terminals of the plug. Remedy this if
necessary.
10. Plug the plug into the associated PCB slot; see the
connection diagram in the appendix.
5.9.3 Establishing the power supply
Caution.
Risk of material damage due to high con-
nected voltage.
At mains voltages greater than 253 V, elec-
tronic components may be damaged.
▶ Make sure that the rated voltage of the
mains is 230 V.
1. Make sure that the nominal mains voltage is 230 V.
2. Provide one common electricity supply for the boiler
and for the corresponding controller:
– Power supply: Single-phase, 230 V, 50 Hz
– Fuse protection: ≤ 3 A
3. Open the electronics box. (→ Page 18)
4. Connect the product using a fixed connection and a
partition with a contact opening of at least 3 mm (e.g.
fuses or power switches).
5. Route a three-core mains connection cable that com-
plies with the relevant standards through the cable duct
and into the product.
– Mains connection line: Flexible line
6. Carry out the wiring. (→ Page 18)
7. Remove the supplied plug from the bracket in the elec-
tronics box and screw the plug onto the mains connec-
tion cable.
8. Close the electronics box.
9. Make sure that access to the mains connection is al-
ways available and is not covered or blocked.
To Next Page
Loading...
