Vaillant VR 70 User manual

For the competent person
Installation instructions
VR 70
GB, IE
Installation instructions
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Telefon [phone]‑0 Telefax 021 91 18‑28 10
[email protected] www.vaillant.de

Contents
2Installation instructions VR 70 0020198787_00
Contents
1 Safety .................................................................... 3
1.1 General safety information .................................... 3
1.2 Requirements for lines........................................... 3
1.3 Regulations (directives, laws, standards) .............. 3
1.4 Intended use .......................................................... 3
2 Notes on the documentation .............................. 5
2.1 Observing other applicable documents ................. 5
2.2 Storing documents................................................. 5
2.3 Applicability of the instructions .............................. 5
3 Product overview................................................. 5
3.1 CE label ................................................................. 5
3.2 Design of the product............................................. 5
3.3 How it works .......................................................... 5
3.4 Identification plate.................................................. 5
3.5 Checking the scope of delivery.............................. 5
4 Installation............................................................ 6
5 Electrical installation........................................... 6
5.1 Setting the bus address......................................... 7
6 Decommissioning................................................ 7
7 Recycling and disposal....................................... 8
8 Customer service................................................. 8
9 Technical data...................................................... 8

Safety 1
0020198787_00 VR 70 Installation instructions 3
1 Safety
1.1 General safety information
1.1.1 Risk of death from live connections
There is a risk of death from electric shock
when working on the product when it is open.
▶Switch the main switch off before removing
the cover to work on the product.
▶Disconnect the product from the power
mains by de-energising the product using
a partition with a contact opening of at
least 3 mm (e.g. fuses or power switches).
▶Check that the product is de-energised.
▶Secure the power supply against being
switched on again.
1.1.2 Material damage due to unsuitable
installation room
If you are installing the product in a moist en-
vironment, the electronics may be damaged
by moisture.
▶Only install the product in dry rooms.
1.1.3 Danger due to error functions
▶Ensure that the heating system is in a
technically perfect condition.
▶Ensure that no safety or monitoring
devices have been removed, bridged or
disabled.
▶Immediately rectify any faults and damage
that may affect safety.
▶At lengths of over 10 m, 230 V supply
cables must be laid separately from sensor
or bus lines.
▶Secure all supply lines in the casing using
the enclosed strain relief.
▶Do not use the unit's free terminals as sup-
ports for other wiring.
1.2 Requirements for lines
▶Use standard commercial lines for the wir-
ing.
▶Do not use flexible lines for 230 V lines.
▶Use sheathed cables for 230 V lines (e.g.
NYM 3 x 1.5).
Minimum cross-section
Supply line 230 V (pump or
mixer mains cable)
≥1.5 mm²
eBUS line (extra-low
voltage)
≥0.75 mm²
Sensor line (extra-low
voltage)
≥0.75 mm²
Maximum line length
Sensor lines ≤50 m
Bus lines ≤125 m
1.3 Regulations (directives, laws,
standards)
▶Observe the national regulations, stand-
ards, guidelines and laws.
1.4 Intended use
In the event of inappropriate or improper use,
damage to the product and other property
may arise.
This product is a system component that en-
hances the system's functionality. A controller
controls and regulates the functions via an
eBUS interface.
Operation is permissible with the following
component:
–VRC 700
Intended use includes the following:
–observance of accompanying operating,
installation and servicing instructions for
the product and any other system compon-
ents
–compliance with all inspection and main-
tenance conditions listed in the instruc-
tions.
This product can be used by children over
eight years old and also by persons with lim-
ited physical, sensory or mental capabilities
or insufficient experience and/or knowledge if
they are supervised or have been provided
with instructions on how to safely use the
product, and they understand the risks res-
ulting from using the product. Children must
not play with the product. Cleaning and user
maintenance work must not be carried out by
children unless they are supervised.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document shall be considered improper

1 Safety
4Installation instructions VR 70 0020198787_00
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.

Notes on the documentation 2
0020198787_00 VR 70 Installation instructions 5
2 Notes on the documentation
2.1 Observing other applicable documents
▶You must observe all the operating and installation in-
structions included with the system components.
2.2 Storing documents
▶Pass these instructions and all other applicable docu-
ments on to the system operator.
2.3 Applicability of the instructions
These instructions apply only to:
VR 70 –Article number
Great Britain 0020184844
3 Product overview
3.1 CE label
The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.
The declaration of conformity can be viewed at the manufac-
turer's site.
3.2 Design of the product
3
4
1
2
1 Wall-mounting base
2 Diagnostics socket
3 Front casing
4 Front panel for the
fixing screw
3.3 How it works
The product has inputs and outputs. By assigning the inputs
and outputs in different ways, you can set up various sys-
tems. The inputs and outputs are configured using the con-
troller.
3.4 Identification plate
The identification plate is located on the right-hand side of
the casing.
Information on the identific-
ation plate
Meaning
Serial number For identification
VR 70 Product description
V Operating voltage
W Power consumption
Switching capacity for each
relay and overall switching
capacity
Product complies with
European standards and
directives
Proper disposal of the product
3.5 Checking the scope of delivery
Quantity Component
1VR 70
2VR 10
1 Installation accessories (bolts and rawl plugs)
1 Installation instructions
▶Check that the scope of delivery is complete.

4 Installation
6Installation instructions VR 70 0020198787_00
4 Installation
Opening the product
A
C
D
B
1. Open the product in accordance with the illustration.
Installing the product
B
B
A
2. Install the product using the appropriate fastening ma-
terial in accordance with the illustration.
3. Connect the product. (→Page 6)
Closing the product
4. Mount the front casing at the top of the wall socket.
5. Use the fixing screw to secure the front casing.
6. Slide the front panel over the fixing screw until the front
panel clicks into place.
5 Electrical installation
Danger!
Risk of electric shock
There is a risk of electric shock when working
on electrical components that are connected
to the low-voltage network.
▶Disconnect the product from the power
supply.
▶Secure the product against being
switched back on again.
▶Check that the product is de-energised.
▶Only open the product when it is de-ener-
gised.
R2
LN
R1
LN
230V
LN
BUS
-+
R5/6
1 2N
R3/4
N 1 2
S1
12
S2
12
S3
12
S4
12
S5
12
S6
12
S7
OI
51
445
2 3
1 Input
2 Input and output
3 eBUS
4 Output
5 Mains connection
1. Connect the required inputs and outputs from the selec-
ted system diagram.
2. 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).
Danger!
Risk of damage caused by incorrect in-
stallation.
Connecting wires that have been stripped
back too far may cause short circuits and
damage the electronics if a strand accident-
ally comes loose.

Decommissioning 6
0020198787_00 VR 70 Installation instructions 7
▶Only strip the outer sheathing of flexible
cables to a maximum of 2.5 cm to prevent
short circuits.
▶Lay the lines correctly.
▶Use the strain relief.
3. Do not damage the insulation on the connecting wires
when you strip the outer sheathing of the line.
Connecting the line to the upper terminal block
C
B
D
≤25 mm
A
4. Connect the required inputs and outputs in accordance
with the illustration.
5. Connect the eBUS line to the terminal strip in the con-
troller's wall socket.
Connecting the line to the lower terminal block
B
E
D
C
≤25 mm
A
6. Connect all of the required lines in accordance with the
illustration.
7. Set the bus address. (→Page 7)
8. Close the product. (→Page 6)
5.1 Setting the bus address
BUS
-+
S2
12
S3
12
S4
12
S5
12
S6
12
S7
OI
1
1
1 Address switch
▶Assign a unique address to each VR 70 that is connec-
ted, beginning with Address 1.
6 Decommissioning
1. Decommission the heating installation if you want to
replace the product.
2. Disconnect the product from the power mains by de-en-
ergising the product using a partition that has a contact
opening of at least 3 mm.
3. Check that the product is de-energised.
4. Secure the power supply against being switched on
again.

7 Recycling and disposal
8Installation instructions VR 70 0020198787_00
5. Open the product. (→Page 6)
6. Disconnect the lines from the product's terminal block.
7. Unscrew the wall-mounting base from the wall.
7 Recycling and disposal
▶The competent person who installed your product is re-
sponsible for the disposal of the packaging.
If the product is identified with this symbol:
▶In this case, do not dispose of the product with the
household waste.
▶Instead, hand in the product to a collection centre for old
electrical or electronic appliances.
If the product contains batteries that are marked with
this symbol, these batteries may contain substances that are
hazardous to human health and the environment.
▶In this case, dispose of the batteries at a collection point
for batteries.
8 Customer service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance Agreement.
Please contact Vaillant Service Solutions (0870 6060 777)
for further details.
9 Technical data
Max. operating voltage 230 V
Total current ≤4 A
Rated surge voltage 2,500 V
Max. extra-low voltage (ELV) 24 V
Safety extra-low voltage
(SELV)
24 V
Mode of operation Type 1.B.C.Y
Connection type Y
Level of protection IP 20
Protection class I
Degree of contamination 2
Ambient temperature 0 … 60 ℃
Rel. air humidity 29 … 95 %
Height 293 mm
Width 277 mm
Depth 68 mm