Flue Gas Safety Device - Bosch WR 11 B Installation Manual And Operating Instructions

7.3

Flue gas safety device

DANGER:
The ue gas safety device must not under any
circumstances be switch ed o , simulated or
replaced by any other component.
Operation and safety precautions
The ue gas safety device checks the e ectiveness of ue gas
extraction by the ue. If it is inadequate, the appliance switches
o automatically so that the combustion fumes do not escape
into the room in which the appl
ue gas safety device resets after a cooling-down period.
If the appliance shuts down while in operation:
Ventilate the room.
Wait about 10 minutes then restart the appliance.
If the problem recu rs, call an engineer.
DANGER:
The user must never make any modi cations
to the ue gas safety device.
Maintenance
If faults occur on the ue gas
Undo ue gas safety device xing screw.
Loosen temperature limiters connectors.
Undo magnetic unit connector.
Remove thermocouple.
Replace damaged component wi
the reverse of the procedure set out in the table above.
Function check
Flue gas safety devi ce function check:
Disconnect ue pipe;
Replace with pipe (about 50 cm long) with sealed end;
Fit pipe vertically;
Start up appliance at rate d output and set temperature
control to maximum temperature;
Under those conditions, the appliance should shut down
after two minutes. Remove te
ue pipe.
iance has been installed. The
safety device, proceed as follows:
th new one and re t using
mporary pipe and reconnect
Maintenance (must be carried out only by quali ed technicians) | 17
6720648592 (2014/05)