Operating instructions
93
Installation
Connecting a three−phase burner safety chain not zero volt
!
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 Control unit
(legend see page161)
B Main contactor (on site)
C Three−phase burner
D Three−phase burner supply
E Main contactor control
F Control chain stage1/base load
G Burner fault message
H Hours run counter stage1
K Base load/full load
fÖ Control unit power supply
fA Burner, stage 1
lÖ Burner, stage 2
aBÖ Plug for external connections
a external safety equipment
*1
aBA Safety chain (STB)
*1
Remove jumper when making this
connection.
5862730GB
TR
K1
F2
a
A
B
D
C
F
K
G
H
E
T6 T7 T8
ON
ON