Vaillant ecoCRAFT exclusive VKK GB 1206/3-E R1 Installation And Maintenance Instructions Manual page 13

5.6.2 Unit types: B23, B23P and C63
5.6.2.1 Air/flue system, not system-certified,
setting up
With unit types B23 and B23P, the combustion air is taken
out of the installation room. The ventilation openings in the
installation room must comply with the relevant regulations.
With unit type C6, the combustion air is fed in from the out-
side through a combustion air pipe. The air intake port and
the flue gas opening must not be on opposite sides of the
building.
When using flue systems that have not been tested and ap-
proved with the boiler, you must observe the following condi-
tions:
–
The flue system must be suitable for the boiler (e.g. in
terms of temperature, pressure and leak-tightness class).
The flue pipework must be labelled with the CE conform-
ity mark or, if necessary, be certified according to na-
tional standards.
–
The design standards determine limits and safety-related
requirements concerning the planning, construction and
start-up as well as the maintenance of flue systems.
▶
Observe the applicable design standards for flue sys-
tems.
▶
Observe the information provided by the flue pipework
manufacturers.
▶
Dimension the flue system in accordance with EN 13384-
1. The required system parameters are listed under
"Technical data".
▶
Select the flue pipework diameter so that it is at least as
large as the diameter of the flue spigot on the boiler. A
reduction is not permitted.
▶
Lay the horizontal part of the flue pipework with a down-
ward gradient towards the boiler.
5.6.2.2 Connecting the flue pipe
Note
Information on chimney design:
The modulation of the boiler with combustion air
adaptation achieves a high combustion efficiency.
This requires technical proof of the suitability of
the chimney in accordance with the applicable
standards.
All condensing boilers are equipped with special connectors
for connecting condensate-proof and overpressure-tight flue
pipework.
▶
Install an inspection opening in the flue pipework for
cleaning purposes.
▶
Install a sealable measurement opening for measuring
the CO₂ content on-site on the outside of the product
casing in the flue pipework.
▶
If necessary, equip the flue pipework with an optionally
available flue gas safety cut-out (SCO) which switches off
at 120 °C.
0020149561_01 ecoCRAFT exclusive Installation and maintenance instructions
5.7 Electrical installation
Danger!
Risk of death from electric shock as a res-
ult of an improper electrical connection!
An improper electrical connection may neg-
atively affect the operational safety of the
product and result in material damage or per-
sonal injury.
▶
Only carry out the electrical installation if
you are a trained competent person and
are qualified for this work.
▶
Observe all applicable laws, standards
and directives in the process.
▶
Earth the product.
▶
Install a mains power switch on-site in the product's
power supply.
▶
Route the mains and low-voltage cables (e.g. sensor
cable) with sufficient space between them in order to
prevent interfering impulses that are caused by crosstalk.
The product is equipped with connectors and is wired ready
for connection. The power supply cable and all other con-
nection cables can be connected to the corresponding ProE
system plugs that are provided; see the connection diagram
(→ Page 40).
5.7.1 Opening/closing the electronics box
5.7.1.1 Opening the electronics box
1. Open the front flap. (→ Page 10)
2. Remove the front casing. (→ Page 10)
3. Hinge the electronics box forwards.
4. Undo the clips from the retainers.
5. Fold up the cover.
5.7.1.2 Closing the electronics box
1. Close the cover by pressing it downwards onto the elec-
tronics box.
2. Ensure that all of the clips audibly click into the retain-
ers.
3. Swing the electronics box up.
5.7.2 Carrying out the wiring
1. Open the electronics box. (→ Page 13)
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.
Installation 5
13