Viessmann GC1 - Connecting the Central Fault Message Facility; Connection of Low Water Cut-Off Device; Connection to Safety Equipment

61
5793 309 - 05
Vitotronic 100, GC1B / Vitotronic 300-K, MW1B Installation and Service
Vitotronic 100, Installation
Connecting the Central Fault Message Facility
Connection of Low Water Cut-off Device
150
CAUTION
The diagram shown is only a simplified conceptual
drawing of a typical low water cut off (LWCO) device.
Refer to the manual specific to the device for
interconnection details.
1. Remove jumper between terminals 12 and 15.
2. Make connection as shown in diagram.
aBH Power supply for accessories.
aBÖ Connection for external equipment.
A Low water cut-off (typical)
Connections to Safety Equipment
150
1. Connect the external safety equipment in series.
Rated voltage 120V~
Rated current max. 2A~
Legend
A DIN rail
B Low water cutoff
C Other safety controls