Viessmann B1KE Combi Series Installation And Service Instructions Manual page 27

Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Electrical Connections
Floating switching contact connection
Connection to plug lH – terminals 5 and 6.
The following function can be connected:
Call for heat.
Contact closed – demand for set target value.
The boiler and heating circuit pump are switched on.
Contact open – no demand, no heating operation, no
frost protection.
Legend
A Dry contact
(continued)
Assigning functions in the commissioning assistant
See commissioning assistant in "Commissioning".
Routing connecting cables/leads
Bundle cables using cable ties.
Route low voltage cables separately from 120V~ cables.
Secure the cables on the underside using the supplied
cable ties.
Do not route cables over sharp edges.
IMPORTANT
If connecting cables/leads come into contact with hot
components, they will be damaged.
When routing and securing cables/leads on site, ensure
that the maximum permissible temperatures for these
cables/leads are not exceeded.
Installation
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