Wiring Diagrams - Vaillant ecoTEC exclusive SERIES Installation And Maintenance Instructions Manual

5.10.6 Wiring diagrams

Fig. 5.15 Connection wiring ecoTEC exclusive
ecoTEC exclusive installation and maintenance instructions / 0020017768_02
Connection eBUS accessories
Cable harness compact thermal module
PWM pump
Connection accessories module
Diagnosis via eBUS,
vrnetDIALOG
External sensor
External flow or return sensor
Cable harness hydraulics
Connection for external
eBUS controller
Room thermostat 24 V:
Connection 7, 8 and 9
No bi-directional interface
(only analogue)
Mains connection: 230 V/50 Hz
Room thermostat 230 V/50 Hz
(Remove bridge when connecting)
Heating pump
Fan
2nd pump: - circulation pump
Fuse 2A, slow-response
Igniter
Start-up 6
Caution:
Do not connect mains voltage!
Danger of damage to
the electronics!
- storage tank charging pump
- 2nd external pump
- solar pump
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