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Installation and maintenance instructions ecoTEC plus 0020031552_03
4.19.4 Wiring diagrams
Burner cable harness
Wiring harness hydraulics
Connection for
external eBUS controller
Room thermostat 24 V:
Connection 7, 8 und 9
No bi-directional interface
(only analogue)
Room thermostat 230 V/50 Hz
(Remove bridge when connecting)
Heating pump
2 speed pump (plug with 5 pins)
Mains connection 230 V/50 Hz
Fuse 2 A, slow-acting
Igniter
Attention:
Do not connect
mains voltage
Danger of destroying
the electronics!
Diagnosis via eBUS,
vrnetDIALOG
Accessory module connection
External
sensor
external feed or return
line sensor
Shift load storage tank
pump connection 230 V
Shift load storage tank connection
Shift load storage tank pump connection
Fig. 4.19 Wiring diagram electronics box
Sequence of operations during installation 4
Содержание ecoTEC plus 937
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