Vaillant ecoFIT sustain 615 Installation And Maintenance Instructions Manual page 13

5.5.2 Closing the electronics box
▶
Follow the instructions in the reverse order.
5.5.3 Cable route
1
1 230-V 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).
0020277252_00 ecoFIT sustain Installation and maintenance instructions
2
2 24-V cable or eBUS
cable route
4. Provide one common electricity supply for the boiler
and for the corresponding controller:
–
Power supply: Single-phase, 230 V, 50 Hz
– Fuse protection: ≤ 3 A
5. Open the electronics box. (→ Page 12)
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 13)
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 controls to the electronics
1 Safety thermostat for
underfloor heating
2 24 V control
1. Open the electronics box. (→ Page 12)
2. Carry out the wiring. (→ Page 13)
Installation 5
X1
L N
RT
230V~
24 V BUS
–
+
Burner 24V=
off RT BUS
1 2 3
X2
X41
X22
4
3 eBUS control or radio
receiver unit
4 Outdoor temperature
sensor, wired
13