Viessmann VITOROND 100 VR1 40 Installation And Service Instructions Manual page 32

Burner Set-up
Electrical Connections (with Hydrostat 3250-Plus Control)
Riello burner
Legend
A Power supply, provide disconnect means and
overload protection as required.
B Control case must be connected to earth ground.
Use grounding provided.
C B1 is a in. tab terminal.
D Circulator
E Temperature limit control (when required by local
jurisdiction) (field supplied)
* Field supplied
Carlin burner
Legend
A Power supply, provide disconnect means and
overload protection as required.
B Control case must be connected to earth ground.
Use grounding provided.
C B1 is a in. tab terminal.
D Circulator
E Temperature limit control (when required by local
jurisdiction) (field supplied)
* Field supplied
32
Vitorond 100, VR1 40 to 63, 161 to 245 Installation and Service
IMPORTANT
Red wire not used in this application. Use wire nuts to
cap both ends (inside high limit control and Riello burner
sub- base).
(continued)