Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual page 16

5 Installation
▶
Only connect the mains connection cable
to the terminals marked for the purpose.
1. Route the connection cables of the components to be
connected through the cable duct provided on the un-
derside of the product on the left.
2. Use strain reliefs.
3. Shorten the connection cables as necessary.
30 mm max.
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 connection cable.
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 15)
4. Connect the product using a fixed connection and an
electrical 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 15)
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.
16
5.9.4 Installing the product in a moist
environment
Danger!
Risk of death from electric shock!
If you install the product in a room with high
levels of moisture, e.g. a bathroom, observe
the nationally recognised technical standards
for electrical installations. If you use the fact-
ory-installed connection cable, if installed,
with an earthed plug, there is a risk of death
from electric shock.
▶
Never use the factory-installed connection
cable with earthed plug when installing the
product in a moist environment.
▶
Connect the product using a fixed connec-
tion and an electrical partition with a con-
tact opening of at least 3 mm (e.g. fuses
or power switches).
▶
Use a flexible line for the mains connec-
tion line, which is routed through the cable
duct into the product.
1. Open the electronics box. (→ Page 15)
2. Detach the plug from the PCB slot for the power supply
(X1).
3. Unscrew the plug of the factory-installed power supply
cable, if installed.
4. Instead of the factory-installed power supply cable, if
installed, use a suitable three-core power supply cable
which complies with the relevant standards.
5. Carry out the wiring. (→ Page 15)
6. Close the electronics box.
7. Observe the flue-gas connection that is required on a
room-sealed air/flue gas installation. (→ Page 14)
5.9.5 Connecting controllers to the electronic
system
1. Install the controller if necessary.
2. Open the electronics box. (→ Page 15)
3. Carry out the wiring. (→ Page 15)
4. Observe the connection diagram in the appendix.
Conditions: Connecting a weather compensator or a room temperature
controller via eBUS
▶
Connect the controller to the eBUS connection.
▶
Bridge the 24 V = RT connection (X100 or X106), if there
is not already a bridge.
Conditions: Connecting a low-voltage controller (24 V)
▶
Remove the bridge and connect the controller to the
24 V = RT connection (X100 or X106).
Conditions: Connecting 230 volt controller
▶
Connect the switched live supply with the terminal
marked RT at X1 (beside the LNPE connections) then
remove the link at X100 (do NOT connect 230 volt to
any other terminal than the RT connection).
Installation and maintenance instructions ecoTEC pro 0020244995_02