Vaillant ecoTEC plus VUI Series, Инструкция по установке и обслуживанию

Страница: 27 / 100

0020308121_04 Installation and maintenance instructions
27
7.10.5 General information
7.10.5.1 Requirements for the mains voltage and
sensor lines
Observe the following requirements for the mains voltage
and sensor lines:
Line cross-section
Supply line for mains
voltage (pump or mixer
mains cable)
≥
1.5 mm
²
(
≥
0.0023 in
²
)
Sensor line (extra low
voltage)
≥
0.75 mm
²
(
≥
0.00116 in
²
)
Line length
–
Sensor lines:
≤
50 m (
≤
164 ft
‒
1 in)
7.10.5.2 Requirements for the eBUS line
Observe the following rules when routing the eBUS lines:
▶
Use twin-core cables.
▶
Never use shielded or twisted cables.
▶
Use only appropriate cables, e.g. NYM or H05VV (-F/-U).
▶
Observe the permissible total length of 125 m. For a
total length of up to 50 m, a conductor cross-section of
≥
0.75 mm
²
applies; from 50 m upwards, a conductor
cross-section of 1.5 mm
²
applies.
In order to prevent faults in the eBUS signals (e.g. due to
interferences):
▶
Maintain a minimum clearance of 120 mm to power sup-
ply cables or other electromagnetic sources of interfer-
ence.
▶
For parallel routing to mains connection lines, guide the
cables in accordance with the applicable regulations, e.g.
on cable trays.
▶
Exceptions: For wall breaks and in the electronics box, it
is acceptable to not reach the minimum clearance.
7.10.5.3 Feeding through and correctly routing the
cable
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 connection cable to the
terminals marked for the purpose.
1. For eBUS lines the wire type can be multi strand cable
or solid core. There is no requirement for Cat 5 cable to
be used.
230V
24V / eBus
2. Correctly route the connection cables for the compon-
ents that are to be connected in the electronics box:
24 V/ eBUS -> left-hand area, 230 V -> right-hand
area.
3. Run power cables separately from signal cables. Inter-
ference from power cables may induce spurious faults
on signal cables. Ensure that there is at least 100 mm
separation from each other.
4. Ensure the cables are of sufficient length to allow the
electronics box to be opened to the service position.
5. Use the strain reliefs in the electronics box.
6. If required, shorten the connection cables correctly.
1
7. Route the connection cables of the components to be
connected through the grommets
(1) provided on the
underside of the product on the left.
8. Ensure that the grommet is plugged in correctly and
that the cables have been routed correctly.
9. Take care when piercing the grommets that an air gap
isn't created once the wire has been fitted.