Vaillant atmoCRAFT VK 654/9 Installations- Und Wartungsanleitung Seite 77

X1
Charging pump
N
L
N
Heating circuit pump
L
5
4
Option external controller/room thermostat 230V contact
3
N
Mains infeed
L
9
8
Option external controller /room thermostat 7-8-9, 24V, digital or analogue
7
2
Option installation thermostat
1
External sensor
X8
Feed/return sensor (option)
DCF connection
Mass
1
Mass
Connection accessories box /
X7
accessories module
3
13
2
14
10
23
16
24
6
X2
8
5
12
1
17
19
L
X11
N
7
X9
1
Ignition transformer
Fig. 5.4 Electrical connections atmoCRAFT above 130 kW
Installation and maintenance manual atmoCRAFT
Plug for controller
accessories (in controller set)
Used alternatively, depending upon accessories
Red
Coded resistance (12.7 kOhm)
C1
C2
White
Diverter setting motor
1
1
3
7
Relay PCB
Ignition stage
Main valve
3 2
PE
1
N
Unit mass
Remote control circulation pump
External sensor
Feed/return sensor (option)
DCF connection
Mass
ET plug 252629
Mass
Boiler sensor
Storage tank thermostat (accessories)
Storage tank sensor
(accessories)
Safety temperature limiter
Exhaust gas sensor (accessories)
otherwise replacement resistance
Ionisation electrode
Open Closed
M
N
1
5
4
2
3
Gas valve 2nd stage
("modulation magnet")
Gas valve 1st stage
Ignition electrode
Installation 5
GB 23