Table of Contents
Advertisement
Initial Operation
NOTE:
The safety information contained in the Operating Instruc-
tions have to be adhered to!
After the heater has been installed, the water circuit and
the fuel supply system are to be thoroughly bled. Follow
the directions of the vehicle manufacturer.
Perform a test run of the heater thereby checking all water
and fuel connections for leakage and security. Should the
heater fail during operation, troubleshooting activities are
to be carried out.
Malfunctions
Fault Lock-Out Due to Malfunctions of the Heater
If no flame forms fuel is delivered for max. 180 sec-
onds.
If the flame is extinguished during operation, fuel is de-
livered for max. 90 seconds.
In the event of
overheating fuel supply is immediately
stopped.
CAUTION:
No visual indication occurs in the case of overheating.
BBW 46 / DBW 46
Fault Lock-Out Due to Undervoltage
In the case of an undervoltage of 9.5 ± 0. V (in the case of
12-volt heaters) or 19 ± 1 V (in the case of 24-volt
heaters), measured at the input of the control unit, occur-
ring over a period of 20 seconds, the heater will shut down
in its fault lock-out mode and an after-run period will follow.
Interlock Deactivation
- Eliminate cause of malfunction
- Resetting is performed by switching the heater off and
back on again (the 'off' period has to last for at least
1 sec).
- In the case of overheating, the temperature fuse has to
be replaced or the temperature limiter to be reset.
13
Hide quick links:
Advertisement
Table of Contents
