Connecting A Three−Phase Burner Zero Volt Safety Chain - Viessmann VITOTRONIC 100 Installation And Service Instructions Manual

Installation
Connecting a three−phase burner
!
Please note
A jumper in the burner may possibly have to be removed from the
external conductor to the control voltage.
Observe the details of the burner supplier.
A
a
B
C
D
A Control unit
(legend see page 161)
B Main contactor (on site)
C Three−phase burner
D Three−phase burner supply
E Main contactor control
F Safety chain (STB) zero volt
G Control chain stage 1/base load
H Burner fault message
K Hours run counter stage 1
L Base load/full load
92
F2
E
F
fÖ Control unit power supply
fA Burner, stage 1
lÖ Burner, stage 2
aBÖ Plug for external connections
aBA Safety chain, zero volt
*1
zero volt safety chain
TR
K1
T6 T7 T8
H
G
L
K
a external safety equipment
Remove jumper when making this
connection.
*1
*1