Connecting The Mains Feed; Connecting The Sensors And Setting Motors - Vaillant atmoCRAFT VK 654/9 Installations- Und Wartungsanleitung

5.4.2 Connecting the mains feed

Fig. 5.1 Connecting the mains supply
The nominal voltage of the mains must be 230 V; if the
mains voltage is more than 253 V and below 190 V
functional impairment is possible.
Caution!
The electronics can be destroyed by connecting
the mains infeed to the wrong terminal plugs on
the ProE System.
Only connect the mains infeed to the terminals
marked for the purpose!
The mains feed must be connected via a fixed connec-
tion and a separating device having a minimum contact
opening of 3 mm (e.g. fuses, power switch). In the sub-
distribution you must fit a 16 A fuse.
• Run the mains infeed cable to the connection level
System Pro E in the boiler.
• Connect the mains feed securely to the ProE plug (see
Fig. 5.1).
Installation and maintenance manual atmoCRAFT

5.4.3 Connecting the sensors and setting motors

3
1
2
Fig 5.2 Connecting the sensors and setting motors
• Connect the connecting cable to the STL with the
plugs (1, two flat plugs).
• Connect the connecting cable of the setting motor to
plug (2) on the electronic box. The plug and the socket
carry the same markings.
• Connect the other connecting cable of the setting
motor to plug (3) on the gas fitting.
• Connect the connecting cable of the gas valve to plug
(4) on the electronic box.
Note!
The seals then need to be fitted to the pre-
assembled electrical connections on the gas
fitting. The seals are located in a plastic
envelope which is fixed to the connection line
with adhesive.
• Connect the cable from the ignition electrode (5) to
the ignition transformer.
• Connect the earth cable (6) to the ignition
transformer.
Installation 5
6
5
4
GB 21