Vaillant ecoFIT pure Installation And Maintenance Instructions Manual page 12

5 Installation
5.5.3 Cable route
2
1 24-V eBUS cable route
5.5.4 Carrying out the wiring
30 mm max.
1. Shorten the connection cables to the appropriate
lengths to prevent them from causing damage inside
the electronics box.
2. Screw the plug to the connection cable.
3. Plug the plug into the slot provided on the PCB.
5.5.5 Establishing the power supply
1
1. Observe all valid regulations.
2. Ensure that the rated mains voltage is 230 V.
3. Set up a fixed connection and install a partition with a
contact opening of at least 3 mm (e.g. fuses or power
switches).
4. Provide one common electricity supply for the boiler
and for the corresponding controller:
12
1
2 230-V eBUS cable route
–
Power supply: Single-phase, 230 V, 50 Hz
– Fuse protection: ≤ 3 A
5. Open the electronics box. (→ Page 11)
6. Observe the routing of the power supply cable (1) in the
electronics box in order to guarantee that there is no
strain.
7. Carry out the wiring. (→ Page 12)
8. Close the electronics box.
9. Make sure that access to the mains connection is al-
ways available and is not covered or blocked.
5.5.6 Connecting controllers to the electronic
system
1 Safety thermostat for
floor-standing heating
2 24 V controller
1. Open the electronics box. (→ Page 11)
2. Carry out the wiring. (→ Page 12)
Installation and maintenance instructions ecoFIT pure 0020230533_01
X1
L N
RT
230V~
24 V BUS
– +
Burner
24V=
off
RT BUS
1 2 3
X2
X41
X22
4
3 eBUS controller or radio
receiver unit
4 Outside temperature
sensor, wired