Operating instructions

138
Components
Motorised flue gas damper, part no. 9586 973 and 9586 974
When connecting, remove jumper
"TR"  "ON/TR".
A To control unit
B Flue gas damper motor
C Limit switch
Function check
The burner may only start after the
flue gas damper has opened 90% of
the pipe cross−section and the limit
switch has been activated.
You can check the switch function by
measuring its voltage:
Flue gas damper closed (switch
open)  no voltage at terminal 3.
Flue gas damper open (switch
closed)  voltage at terminal 3.
5862730GB
150
STB N STB TR TR
ON ON
A
1 2 3
M
~
F
B
C