Vaillant ecoCRAFT exclusive VKK GB 1206/3-E R1 Installation And Maintenance Instructions Manual page 14

5 Installation
2. Route the connection cables of the components to be
connected through the cable duct to the electronics box.
3. Use the installed strain reliefs.
4. Shorten the connection cables as necessary. Leave the
conductors of the protective conductor approx. 10 mm
longer than the conductors of the L and N conductors.
5. To prevent short circuits if a strand accidentally comes
loose, only strip the outer sheathing of flexible lines to a
maximum of 30 mm.
6. Ensure the inner conductor insulation is not damaged
when stripping the outer sheathing.
7. Only strip inner conductors just enough to establish
good, sound connections.
8. To avoid short circuits resulting from loose individual
wires, fit conductor end sleeves on the stripped ends of
the conductors.
9. Screw the respective plug to the supply line.
10. Check whether all conductors are sitting mechanically
securely in the terminals of the plug. Remedy this if
necessary.
11. Plug the plug into the associated PCB slot.
12. Use the strain reliefs to secure the cable in the elec-
tronics box.
13. After wiring all of the accessories, switch on the mains
voltage and check that the product is working correctly.
5.7.3 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. Observe all valid regulations.
2. Provide one common power supply for the boiler and
for the corresponding control:
–
Power supply: Single phase, 230 V, 50 Hz
– Fuse protection: ≤ 6 A
3. 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).
4. Use a suitable flexible three-core cable that complies
with standards for the power supply cable that is routed
to the product via the grommet.
5. Route the power supply cable to the connection level in
the electronics box.
6. Carry out the wiring. (→ Page 13)
7. Screw the turquoise plug that is installed to the right in
the electronics box to the power supply cable.
8. Connect the plug to the slot of the same colour on the
PCB.
9. Ensure that access to the partition is always available,
and that it is not covered or blocked.
5.7.4 Connecting electrical accessories
▶
Carry out the wiring. (→ Page 13)
14
▶
Connect the connection cables to the corresponding ter-
minals and/or slots in the electronics system, see Overall
connection diagram (→ Page 40) and, if required, Con-
nection diagram extract (→ Page 41) in the appendix.
▶
If you connect a room thermostat (continuous control
connection terminals 7-8-9, white ProE plug) or a
weather-controlled temperature control or room temperat-
ure control (bus terminals, red ProE plug) to the product,
you must leave the bridge in place between terminals 3
and 4 (purple ProE plug).
▶
If no 230 V room/timer thermostat is used, you must
leave the bridge in place between terminals 3 and 4
(purple ProE plug).
▶
If required, connect accessories in the same way.
Connecting the heat generator pump (fixed speed)
▶
Connect the heat generator pump to the green ProE plug
(X18) on the terminal block.
Connecting the heat generator pump (speed-con-
trolled)
▶
Connect the heat generator pump to the green ProE plug
(X18) on the terminal block.
▶
Connect the control wire to the 0-10 V adapter box that is
located at the top left beside the two pressure switches in
the product. In doing so, note the polarity because, if it is
connected incorrectly, the heat generator pump will only
work at minimum speed.
Connecting an external flow thermostat
▶
Connect an external flow thermostat (e.g. to protect un-
derfloor heating) to the terminals for the surface-mounted
thermostat (blue ProE plug).
Flue gas safety cut-out (SCO)
▶
Connect the flue gas safety cut-out to the supply line
for the flue pressure switch; refer to the enclosed set-up
instructions for further information about this.
Gas pressure monitor
▶
Connect a gas pressure monitor to the terminals for the
surface-mounted thermostat (blue ProE plug).
Connecting a condensate pump
▶
Connect the alarm output for a condensate pump to the
terminals for the surface-mounted thermostat (blue ProE
plug).
Note
If several contacts are connected to the ter-
minals for the surface-mounted thermostat
(blue ProE plug), connect the contacts in se-
quence.
Connecting a cylinder charging pump
▶
Connect the cylinder charging pump as specified in the
Connection diagram extract (→ Page 41).
5.7.5 Connecting the controller
To control the heating installation, you can use a weather-
controlled outside temperature control or room temperature
control with modulating burner control, e.g. VRC 700.
▶
Observe the information in the controller's installation
instructions.
Installation and maintenance instructions ecoCRAFT exclusive 0020149561_01